{"Bibliographic":{
"Title":"Southwest Fisheries Center Monthly Report: March-April 1989",
"Authors":"",
"Publication date":"1989",
"Publisher":"Southwest Fisheries Center (U.S.)"
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"Language":"English",
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    "content": "admin Lib\nOM\nEP\nRC\nUNITED\nMERICA\nSTATES OF A\nSouthwest FISHERIES CENTER\nHONOLULU LA JOLLA MONTEREY TIBURON\nREPORT OF ACTIVITIES March-April 1989\nANTARCTIC ECOSYSTEM RESEARCH GROUP Antarctic Research Planning Workshop Completed 1\nPage\nCOASTAL FISHERIES RESOURCES DIVISION\nRecent Trends in Worldwide Tuna Production and Trade Analyzed 5\nFISHERY-MARINE MAMMAL INTERACTIONS DIVISION\nReport Completed on Mineralization Patterns in Teeth of Pilot Whales ......\n7\nHONOLULU LABORATORY\nScientists Participate in International Marine Debris Conference. 11\nPACIFIC FISHERIES ENVIRONMENTAL GROUP\nChapters Prepared for Peruvian Upwelling Volume\n16\nPELAGIC FISHERIES RESOURCES DIVISION Statistics Reviewed on the U.S. Canned Tuna Industry for 1988 17\nTIBURON LABORATORY Juvenile Rockfish Found to Respond Alike to Factors Affecting Growth 23\nINFORMATION TECHNOLOGY SERVICES Information Technology 1995 (IT-95) Project Updated 25\nPUBLICATIONS 26\n..........\nNOAA\nNISTR\nON\nEPART\nTME\nSOUTHWEST FISHERIES CENTER\nCENTER ADMINISTRATION- La Jolla, California\nScience and Research Director, SWR\nIzadore Barrett\nDeputy Director.\nJohn F. Carr\nPlanning Officer\nDavid J. Mackett\nInformation Technology Services\nDorothy Roll\nExecutive Officer.\nBenjamin F. Remington\nLABORATORIES & DIVISIONS\nAntarctic Ecosystem Research Group, Chief. La Jolla, California\nRennie Holt\nCoastal Fisheries Resources Division, Chief La Jolla, California\nJohn R. Hunter\nFishery-Marine Mammal Interactions Division, Chief\nDouglas P. DeMaster\nLa Jolla, California\nHonolulu Laboratory, Director. ........ George W. Boehlert\nHonolulu, Hawaii\nPelagic Fisheries Resources Division, Chief La Jolla, California\nGary T. Sakagawa\nPacific Fisheries Environmental Group, Chief. Monterey, California\nAndrew Bakun\nTiburon Laboratory, Director Tiburon, California\nAlec D. MacCall, Acting\nThe Report of Activities of the Southwest Fisheries Center is compiled by the Technical Writing/Editing Group at La Jolla from material submitted by the Center's staff. To change the delivery address of the Report of Activities, or to cancel your subscription, please notify Lorraine C. Prescott , at P.O. Box 271, La Jolla, CA 92038. Telephone: (619) 546-7063.\nANTARCTIC ECOSYSTEM RESEARCH GROUP\nLa Jolla, California\nAntarctic Research Planning Workshop Completed\nThe U.S. Antarctic Marine Living Resource (AMLR) Program is a national program providing information needed for U.S. policy relating to the conservation and management of marine living resources in the ocean areas surrounding An- tarctica. The program is in support of U.S. par- ticipation in the Commission and Scientific Committee of the Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), which established a system for managing the living resources of the Antarctic ecosystem through inter- national cooperation. During 1988 the AMLR Pro- gram was transferred to the Southwest Fisheries Center (SWFC) where it is administered by the Antarctic Ecosystem Research Group (AERG).\nThe Center is presently conducting an exten- sive review of CCAMLR goals to better deter- mine research direction of the AERG. To complete this review, three separate panels have been established. An in-house task force com- prised of Doug DeMaster, Roger Hewitt, Rennie Holt, Jeff Polovina, and Paul Smith reviewed AMLR and CCAMLR research conducted during the last few years and produced a background paper for members of a workshop panel. During the week of April 18 the workshop panel, com- prised of world-class experts, met at the Center to provide advice in designing the AERG re- search program. The workshop panel included the CCAMLR Scientific Committee Chairman, the conveners of the CCAMLR working groups on fish and krill, several experts from academia, and NOAA Fisheries experts. The workshop meeting was facilitated by Aleco Christakis of the American Institute for Interactive Management. Members of the third panel attended the workshop as observers and will serve as advisors to the Center concerning U.S. policy, interac- tions with other agencies, and liaison with\nUNITED STATES DEPARTMENT OF COMMERCE\nAttendees at the Antarctic Planning Workshop (left to right): Don Siniff, University of Minnesota; John Kapelouzos, American Institute for Interactive Management (AIIM); Pierre Kleiber, SWF .; John Bengtson, National Marine Mammal Laboratory; Margi Fiore, AIIM; Rennie Holt, SWFC; Traci LaBerge, AIIM; Alexander Christakis, AIIM; Jeff Polovina, SWFC; Polly Penhale, National Science Foundation; Michael Tillman, NOAA Fisheries, Washington, D.C .; Raymond Hilborn, University of Washington; Inigo Everson, British Antarctic Survey; Paul Smith, SWFC; Izadore Barrett, SWFC; Roger Hewitt, SWFC; Tim Smith, NEFC, Woods Hole Laboratory; John Gulland, University of London; Denzil Miller, Sea Fisheries Research Institute, South Africa; David Mackett, SWFC; and Karl- Hermann Koch, Institut Fur See Fischerei, West Germany. Not pictured, Robert Hofman, Marine Mammal Commission; Bruce Manheim, Environmental Defense Fund; and Tucker Scully, U.S. Department of State.\n1\nFisheries Headquarters. The advisory panel mem- bers were Robert Hofman (Marine Mammal Com- mission), Bruce Manheim (Environmental Defense Fund), Polly Penhale (National Science Founda- tion), Tucker Skully (State Department), and Mike Tillman (NOAA Fisheries Headquarters).\nThe workshop panel identified 76 research tasks which should be considered in developing our re- search plan. They grouped these into 12 categories which were paradigms, assessment, ecosystem in- teractions, stock structure, feeding, spatial pattern, surveys, fishery, history, experimental manage- ment, field methodology, and worry (concerns). The task force then reviewed these tasks and iden- tified 27 additional tasks which were placed into the above 12 categories plus a communications category.\nThe task force will use these 103 tasks to develop several options for the AMLR research strategy. These options will be reviewed by the advisory panel, which will make recommendations to the Center. A final research plan will be developed, which will be used to design the AMLR 1989-90 field season. (R. Holt, FTS 893-7098)\nCOASTAL FISHERIES RESOURCES DIVISION\nLa Jolla, California\nCOASTAL EASTERN PACIFIC FISHERIES ENVIRONMENTAL INVESTIGATIONS\nCalifornia Current Eddy Dipole System Analyzed\nPhysical Oceanographer Ronald Lynn and coauthor Dr. James Simpson of Scripps Institution of Oceanography have completed final editing on two manuscripts dealing with the oceanography of the California Current System off southern Califor- nia. The papers are to be published in the Journal of Geophysical Research. The manuscript, with Lynn as senior author, \"The influence of bathymetry upon the flow of the undercurrent off southern California,\" was described in the Septem- ber-October 1988 Report of Activities. The other manuscript, with Simpson as senior author, \"A mesoscale eddy dipole on the offshore California Current,\" reports on satellite and shipboard obser- vations taken aboard the David Starr Jordan in July 1985.\nThis most recent report describes the dis- covery in 1985 of two opposing eddies or gyres about 250 miles (400 km) southwest of Point Conception. These eddies extended deep into the water column, entraining the California Un- dercurrent waters at depth and the California Current waters near the surface. There is evidence that the pair of eddies, called an eddy dipole, influenced offshore biological produc- tivity and general circulation patterns off of the Southern California Bight during the time of observation in July 1985.\nThere is a transition zone in the California Current System between inshore coastal and offshore oceanic flow. This transition zone is associated with the main core of the California Current and is populated with offshore mesos- cale eddies. The observation of a mesoscale eddy dipole, 400 km southwest of Point Concep- tion, in satellite imagery was confirmed by the shipboard data (Figures 1 and 2). Water mass analysis showed that the anticyclonic member\n35\nDYNAMIC HEIGHT (dyn m)\n1.32\n0/1000 dbar\n1.30\nJuly 1985\n34º\n1.28\n.26\n33°\n1.44\n1.48\n1.36\n1,42-\n1.42\n1.32\n1.44\n32º\n1.34\n1.42\n31º\n1.44\n124°\n123º\n122ª\n121º\n120°\n119\n118º\n117\n116\nFigure 1. Dynamic height of the sea surface reveals the eddy dipole system in the pattern of surface flow.\n35\nDYNAMIC HEIGHT (dyn m)\n250/1000 dbar\n80.\nJuly 1985\n34°\n77.)\nOPP 83.\n.79\n.84.\n33\n70\n78\n.80\n-\n.. 80\n1.80\n32\n.80\n. . 77\n79.\n31\n124°\n123°\n122°\n121°\n120°\n119º\n118\n117\n116°\nFigure 2. Dynamic height at 250 m reveals the California Undercurrent, the dipole system and a complex pattern connecting the dipole to the undercurrent.\n2\n78\n85\ncontained waters of California Undercurrent origin (Figure 3). The dipole was not an isolated system. Both the satellite and in situ data show that near- surface waters from the California Current were laterally entrained into the frontal structure sur- rounding the dipole. Near-surface lateral entrain- ment by eddies and/or secondary vertical circulation produced by eddy - mean flow interac- tion may partially explain the offshore secondary maximum in biological productivity observed in the California Current. The authors conclude that the dipole was likely caused by a bathymetrically-in- duced baroclinic instability of the California Under- current near the Santa Rosa-Cortes Ridge during a period of seasonal increase in current strength.\n35°\nOXYGEN ANOMALY x 10 ml/l\n04:26.4-26.6\n33\n-2\n14\n-6\n32°\n-2\n31°\n124°\n123°\n122°\n121ª\n120°\n119\n118°\n117°\n116\nFigure 3. The distribution of oxygen deficit in a density range found near 200 m corresponds close- ly to the 250 m circulation pattern and shows water characteristics typical of the coastal undercurrent in the dipole.\nIn the companion manuscript by Lynn and Simpson, analysis of the long term CalCOFI data implies that the instability of the undercurrent and subsequent eddy formation are typical of this loca- tion at this time of year. (R. Lynn, FTS 893-7084)\nSURVEY SYSTEMS DEVELOPMENT AND EVALUATION\nEgg and Larva Production of Northern Anchovy in 1989\nThe egg and larva samples collected during the 8901 cruise (January 19-February 4) have been sorted, staged, aged, and analyzed to provide es- timates of daily egg production. The estimate of the 1989 daily egg production is one of the major inputs to the spawning biomass of northern anchovy.\nThe survey area includes CalCOFI lines 77.0 (Pt Buchon, CA) to 93.0 (Del Mar, CA). Forty-three\nCalVET tows were taken out to station 70.0, and 57 Bongo tows were taken up to station 120.0 (Figure 4). Egg samples from CalVET tows and larvae from Bongo tows were used to estimate egg and larva production and mortality (Lo 1986, Fish. Bull., U.S. 84(2)).\n35.\nCALCOFI SURVEY PATTERN\n35.\nPOINT\nCONCEPTION\n70\n-55\n40\n80\n82.47.70\n-34,.33(10m)\n.90\n77,100\n.28.1,28.0\n.90\n.370 35\n26.7(10m), 26.4\n80.100\n.90\n100\n83.110\n.90\n.100\n-90\n20.\n87.110\n.100\n.110\n90.120\n.110\n30\n30*\n93.120\n1\n125*\n120*\nFigure 4. CalCOFI survey pattern.\nThe preliminary estimates of daily egg production and daily egg instantaneous mor- tality rate are 2.01/0.05 m2 (SE=0.61) and 0.58 (SE=0.062). The larva production at hatching is 0.142/0.05 m2 (0.014). Both egg and larva production were lower than previous years (Table 1). The average temperature of tows where eggs were present was 13.17℃ compared to 13.30°C in 1988. With such a low tempera- ture, we expect that only 5% of one-year-olds will be mature, and the estimated spawning biomass will be below the 1 million metric ton estimate of 1988.\nTable 1. Anchovy daily egg production per 0.05 m2 (Po), daily egg mortality, larva production at hatching per 0.05 m2, and average temperature in January- February 1985-1988. Standard error in parenthesis.\nYear\n1985\n1986\n1987\n1988\n1989\nEgg\n5.16\n7.55\n7.23\n6.89\n2.01\nProduction\n(2.16)\n(3.34)\n(2.57)\n(3.42)\n(0.61)\nEgg\n0.28\n0.34\n0.19\n0.53\n0.58\nMortality\n(0.05)\n(0.12)\n(0.08)\n(0.09)\n(0.06)\nLarva\n2.30\n4.61\n4.85\n0.57\n0.14\nProduction\n(0.38)\n(0.26)\n(0.90)\n(0.13)\n(0.01)\nTemperature\n14.11\n14.77\n14.69\n13.30\n13.17\n(*C)\n600\n35\n.69\n.80\n.70\n-80\n.53\n35\n288\nSAN DIEGO\n-60\n-80\n-80\n-90\n$5 90\n395\n30\n(N. Lo, FTS 893-7123)\n3\nSURVEY SYSTEMS DEVELOPMENT AND EVALUATION\nQuantitative Deep Oblique Tows Implemented\nFishery Biologist Paul Smith reports that the quantitative deep oblique tow has been imple- mented by Bill Flerx, Fishery Biologist, for the third year. The tow is intended to encompass the entire vertical range of sablefish and Dover sole eggs for the purpose of estimating egg production rates. Mature Dover sole and sablefish inhabit the ocean floor at depths of 200 to 1000 fathoms (400-1800 meters) and all sablefish and some Dover sole in- habit the surface layer as part of their early life history. This requires the use of an oblique tow which encompasses the entire water column. The standard CalCOFI tow encompassed only the upper 70 meters for the first years of sampling. It was deepened to 140 meters from 1951 to 1966 and further deepened to 210 meters from 1969 to the present.\nThe quantification of oblique tows is ac- complished by one value, the standard haul factor (SHF) and the verification of one assumption. The assumption is that approximately equal volumes are filtered from each depth of interest. This assump- tion allows one to refer eggs per unit volume of water to eggs per unit area of sea surface.\nThe SHF allows each observation to be stand- ardized to a unit referred to as eggs per 10 space meter of sea surface area. The equation for the standardized haul factor is (Kramer and Ahlstrom 1968, CalCOFI Atlas 9):\nSHF =\n10*D R*A*P\nwhere \"D\" is the depth in meters, \"R\" is the number of revolutions of a flow meter in the mouth of the net, \"A\" is the area of the mouth of the net, and \"P\" is the length of the column of water in meters needed to effect one revolution of the flow meter. The units for the reciprocal of the SHF are the mean number of cubic meters of water filtered per 10 meters of depth.\nFor shallow tows (<200 m) the depth of tow and trajectory of the net are estimated from the mean of the tangents of the wire angle. For deep tows, the wire angles do not provide accurate estimates of depth, so for this purpose we have included a conductivity temperature and depth device (CTD). From this instrument we display measures of depth\nand record depth and temperatures each 20 seconds (Figure 5). The display allows us to control the ship and winch speeds to follow an approximately straight trajectory (Figure 5). The distributions of the standard haul factor are shown in Figure 6. The lower haul factor for the deep bongo reflects the greater volume of water filtered per unit depth, not the greater depth.\n0\n200\n10\n400\nDEPTH (m)\n0\n600\n800\n-10\nRATE OF ASCENT (m/min)\n1000\n-20\n1200\n0\n30\n60\n90\n120\nTIME (minutes)\nFigure 5. The trajectory of a deep bongo tow to 1200 meters depth (scale at left). The rates of ascent and descent (scale at right) are plotted each 20 seconds. On descent, the desired rate is 15 meters per minute. On ascent the desired rate is 7 meters per minute.\n0.50\nBongo\n0.40 -\nDeep Bongo\nPROPORTION\n0.30\n0.20\n0.10\n0.00\n2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 STANDARD HAUL FACTOR\nFigure 6. Relationship between the standard haul factor for the deep bongo (left) and the standard bongo (right).\nThe main reason the deep bongo has a smaller standard haul factor is that the net is towed faster. The faster tow makes precise con-\n4\ntrol of the ship speed possible. The equation that relates the tangent of the wire angle to the ship speed is:\nV = V. + exp (r*tan a)\nwhere V is estimated ship speed in meters per second, Vo is the estimated intercept from a nonlinear least squares fit to the expected equation by the Marquardt algorithm, \"r\" is the exponential slope parameter and \"tan a\" is the tangent of the wire angle in degrees. The parameters and standard errors for the equation are Vo=0.692 (0.039) and r=0.271 (0.037). The scatter plot is shown in Figure 7. The curve explains about 54% of the variance of the data.\n1.3\n1.2\nMETERS PER SECOND\n1.1\n1.0\n0.8\n0.8\n40\n45\n50\n55\n60\n65\nWIRE ANGLE (degrees(tangent scale))\nFigure 7. A scatter plot and fitted exponential curve for the empirical relationship between the speed of tow and the tangent of the wire angle at the surface.\nIn practice, it is not possible to tow the net in an even trajectory. It takes several minutes before the net responds to the change in ship's speed with the long towing wire. Also, there are undersea currents at different times and places which alter the con- figuration of the towing wire. Thus, our prime requirement is that each 10 meter level has equivalent variation in volume filtered over the survey area even though there will be cases of undersampling and oversampling on individual tows. The success of this procedure depends on the actual distribution of the organisms in question. In the extreme case, if the eggs are randomly dis- tributed, the assumption of even trajectories is un- necessary. If the non-randomness is exhibited as broad depth zones (50 meters +) containing the various stages of eggs, presumably the number of\nalternating episodes of over- and under- sam- pling would be sufficient to result in little or negligible bias. If the layer proves to be so compact that significant bias or imprecision arises from trajectory error, which we cannot control, the procedure will have to be refined. (P. Smith, FTS 893-7169)\nCOMMERCIAL AND RECREATIONAL FISHERIES RESEARCH FOR MANAGEMENT\nRecent Trends in Worldwide Tuna Production and Trade Analyzed\nSam Herrick, Industry Economist at the La Jolla Laboratory, and Tony Applebaum, Student Intern from San Diego State University, have completed an analysis of recent trends in global catches of tuna and canned tuna production. They find that worldwide catches of tuna have increased steadily from 2.462 million metric tons (mt) in 1979, to 3.418 million mt in 1986, an increase of 39% in 8 years. From 1979 to 1985, global production of canned tuna rose from 607,000 mt to 703,000 mt, an increase of 16%. While these increases in catches and canned tuna production are impressive in themselves, perhaps more striking is the considerable development in the harvesting and canning capabilities of less developed countries relative to that of the historically dominant tuna har- vesters and canners, namely Japan, the United States, Spain and France. The rapid develop- ment of tuna industries in southeast Asia (Thailand, Indonesia, Philippines, Korea, Taiwan, Malaysia, India, China), Latin America (Mexico, Venezuela, Panama, Brazil), the island nations of the western Pacific, and Africa (Ghana, Ivory Coast) has been largely due to their proximity to abundant tuna resources, rela- tively low-cost labor sources, strong government backing, and investments from abroad. How- ever, while these are necessary conditions, the impetus for developing tuna industries in these areas relates to a growing worldwide demand for tuna and processed tuna products.\nThe linear trend model in Figure 8 shows global tuna catches increasing at an annual average rate of 5% between 1979 and 1986, with most of this increase due to growth in the fishing operations of developing nations. Growth in the catches of developing nations\n5\nincreased at an annual rate of 6% over the period, from 1.2 million mt in 1979 to 1.9 million mt in 1986. This compares to average annual growth rate of 3%, with much more variability, for developed nations, with their catches ranging from 1.3 million mt in 1979 to 1.5 million mt in 1986. By 1986, developing nations accounted for more than half of the world's annual tuna catch. The trend model predicts that by 1995 the global tuna catch will reach 4.5 million mt (plus/minus 300,000 mt). The global catch trend, projection and 95% confidence bands are shown in Figure 8. Separate linear forecasts for the developing nations' catch and the developed nations' catch are 2.7 million mt (plus/minus 200,000 mt) and 1.8 million mt (plus/minus 400,000 mt) respectively by 1995.\n4.6 -\nUpper 95% CB\nMILLIONS OF METRIC TONS\n4.2\nPredicted\n3.8\nActual\nLower 95% CB\n3.4 -\n3.0\n2.6\n2.2 -\n80\n82\n84\n86\n88\n90\n92\n94\nYEAR\nFigure 8. Actual and predicted global tuna catches, 1979-1995.\nGlobally, canned tuna production grew at an average rate of 3% annually from 1979 through 1985 as shown in Figure 9. The rapid development of canned tuna processing capability in developing nations over the period accounts for most of this growth. From 1979 to 1985 canned production by developing nations increased 84%, at an average annual rate of 11% compared to a 5% increase for developed nations, at an average annual rate of 1%. By 1985, developing nations accounted for 22% of the world's annual canned tuna production vis a vis 14% in 1979. The linear trend model for canned tuna predicts global production will reach 900,000 mt (plus/minus 200,000 mt) by 1995. The developing nations' production is estimated to be 270,000 million mt (plus/minus 60,000 mt), and production by developed nations is predicted to be 630,000 mt (plus/minus 150,000 mt) by 1995, based on linear trends estimated for each.\nMILLIONS OF METRIC TONS (Canned product)\n1.1\n1.0\nUpper 95% CB\n0.9\nPredicted\n0.8\n0.7\nActual\nLower 95% CB\n0.6\n0.5\n80\n82\n84\n86\n88\n90\n92\n94\nYEAR\nFigure 9. Actual and predicted global canned tuna production, 1979-1995.\nIf prevailing trends continue, and assuming that tuna resources can support expanded har- vests, global output of raw and processed tuna may increase by as much as 30% by 1995. If recent patterns of growth continue into the fu- ture, this expansion is likely to be led by develop- ing nations with burgeoning tuna industries, in which case, the tuna industries of the developed nations will continue to face more intense com- petition, both on the fishing grounds and in the marketplace. (S. Herrick, Jr., FTS 893-7111).\nProgress of Southern California Sportfish Economic Survey\nIndustry Economist Cynthia Thomson has been working with a private contractor, HBRS of Madison, Wisconsin, to complete development of survey instruments for the southern California sportfish economic survey. The survey is spon- sored jointly by the National Marine Fisheries Service and the California Department of Fish and Game, and is designed to: 1) estimate the number of marine recreational anglers residing in southern California; 2) estimate the number of fishing trips for finfish and shellfish during the year and the distribution of these trips by key variables such as area and target species; 3) predict the effect of catch rates and angler char- acteristics (such as income, boat ownership, education and ethnicity) on the demand for fish- ing; and 4) estimate the economic value of the recreational fishery and how this value is af- fected by changes in catch rates.\n6\nThe sampling design involves: 1) a random telephone canvass of the general population in southern California coastal counties to determine the prevalence of finfishing and shellfishing activity; and 2) a follow-up mail questionnaire directed at those telephone respondents who made at least one saltwater fishing trip in the previous 12 months. The survey covers both shore- and boat-based trips in southern California, including boat trips depart- ing from U.S. waters but fishing in Mexican waters. Anglers who do not reside in southern California coastal counties (and are therefore not included in the telephone canvass) will also be represented in the survey. Names and telephone numbers of such individuals will be obtained from the intercept por- tion of the Marine Recreational Fishery Statistics Survey. (C. Thomson, FTS 893- 7116)\nEconomic Models of Pacific Coast Commercial Fisheries\nDale Squires, Industry Economist, SWFC, and Wesley Silverthorne, Regional Economist, SWR, continued developing a mixed integer program- ming model of the west coast sablefish fleet. The model will be used to address the allocation of sablefish quota between the fixed gear (fish pot and long line) and groundfish trawl fleets. Squires has also been working with Samuel Herrick, Industry Economist, in the initial development stages of a coast-wide quadratic programming model. This model will incorporate the major gear types and fisheries and will be used to analyze policy ques- tions as they arise. (D. Squires, FTS 893-7113)\nNew Chairman for PFMC's Scientific and Statistical Committee (SSC)\nAt the Pacific Fishery Management Council meeting, March 1989, Dr. Daniel Huppert, Industry Economist at the La Jolla Laboratory, was installed as Chairman of the Scientific and Statistical Com- mittee. Dr. Huppert has been a member of the committee since 1980, and takes over the chair- manship from Dr. Donald Bevan of the University of Washington. Duties of the Chairman include developing meeting agendas, running the five or so meetings per year, and reporting SSC comments and recommendations to the Council. (D. Huppert, FTS 893-7114)\nFISHERY-MARINE MAMMAL INTERACTIONS DIVISION\nLa Jolla, California\nBIOLOGY ASSESSMENT PROGRAM\nReport Completed on Mineralization Patterns in Teeth of Pilot Whales\nInvestigation of age determination in pilot whales has been undertaken by Christina Lock- yer, visiting research scientist from the Sea Mam- mal Research Unit, Cambridge, England, during her sabbatical year here at the Southwest Fisheries Center. The study is needed in order to verify age for catches of long-finned pilot whales (Globicephala melas) taken in the subsis- tence-type fishery around the Faroe Islands in the northeast Atlantic. This year pilot whales will be discussed at the meeting of the Scientific Committee of the International Whaling Com- mission, in San Diego, beginning May 20. Lock- yer plans to present her findings there.\nThe true incremental deposition rate of laminae in hard tissues has been investigated and established directly for some marine mam- mal species, but not pilot whales, by studying teeth from animals of known age or history, and the use of tetracycline administrations to \"time- mark\" hard tissues (i.e. dentine and cementum in teeth and bone). Teeth of mammals have frequently been used to determine age, and the method of counting laminations in the dentine and/or cementum of the teeth is routinely employed for most species of toothed cetaceans. The main problem is how to interpret laminae in relation to real time: what constitutes a daily, lunar and annual growth layer? The laminations in the dentine and/or cementum have generally been defined in terms of differing mineralization density and/or quality: high and low, a con- tiguous pair of which constitute a growth layer group (GLG), as defined in the review report edited by Fishery Biologist William Perrin and Wildlife Biologist Al Myrick, Jr. (Age determina- tion of toothed whales and sirenians. Rep. Int. Whal. Commn (Spec. Iss.) 3:1-229, 1980). Detailed examination of teeth of many mammal species reveal that events may occur which ap- pear to create systemically rather than locally\n7\ncaused disturbances in the normal regular deposi- tion rate of laminae in the teeth. (Myrick, Jr., A. C. 1988, Is tissue resorption and replacement in per- manent teeth of mammals caused by stress-induced hypocalcaemia? In: Z. Davidovitch (ed.), The biological mechanisms of tooth eruption and root resorption, pp. 379-89. EBSCO Media, Birmin- gham, AL 35233.) Myrick has described such dis- turbances (mineralization anomalies) in cetacean teeth, and has proposed models which may explain the effect of \"stressors\" in causing these anomalies in teeth.\nThe purpose of Lockyer's study is twofold. First, the aim has been to determine the true incremental rate of deposition of dentinal and cemental laminae in the teeth of pilot whales in order to interpret GLG's correctly for age, upon which many biologi- cal parameters are dependent for accuracy. Second, the aim has been to progress beyond this stage, and compare teeth extracted from a) the same individual to investigate conformity of GLG pat- terns, and b) different individuals derived from various sources and localities to study easily iden- tifiable mineralization anomalies which might have biological significance, and assist identification of potential stressors.\nOne tooth was available for each of seven known-history captive northeast Pacific short- finned pilot whales, a closely related species Globicephala macrorhynchus. This material was made available by Sea World, San Diego. Six of the seven animals had received tetracycline medica- tion sometime during their lives. Teeth were col- lected from these animals at death. Investigation indicated that in animals of age years, numbers of cemental and dentinal growth layer groups (GLG's) in the teeth were equal. From comparison of known history, tetracycline marks and other biological in- formation, the implied incremental rate of deposi- tion is one GLG per year. The dentinal and cemental GLG's may therefore be used directly for age determination in years.\nIn addition, teeth were available for each of 235 northeast Atlantic long-finned pilot whales, and duplicate teeth were examined for 10 of these. This sample comprised 91 whales captured on Septem- ber 11, 1986, in the Faroese drive fishery at Sandur on the island of Sandoy, at approximately 61°30'N, 0°11'E, 36 whales stranded on August 21, 1982, at Rif in Iceland, at approximately 64°56'N, 23°50'W, and 108 whales stranded on October 26, 1986, at Thorlakshofn in Iceland, at approximately 63º51'N, 21°22'W. Comparison of duplicate teeth from the\nmandible of single individuals, revealed that GLG counts were similar and deposition patterns and mineralization anomalies were consistent in teeth from the same individual. This implies that all teeth are potentially good for determining age and that deposition patterns are characteristic for the individual as well as being evidence of sys- temic control.\nInvestigation of mineralization anomalies in the teeth from captive whales (for which stressors could be identified) as well as in teeth from free-living northeast Atlantic long-finned pilot whales indicated the following characteristics, previously described by Myrick (1988), for which they were scored in terms of occurrence by sex, current age, reproductive maturity, age at which the anomaly appeared, and in which calendar year. These are 1) mineralization in- terference: irregularities in the lamina formation emanating from differential inhibition/activation of odontoblasts at the mineralization front (nor- mally, the pulp cavity edge), causing realignment of the dentinal tubules and resulting in wavey lines, swirls and asymmetry, which disrupt usual patterns yet do not prevent continuous lamina formation; 2) dentinal resorption: actual erosion and frequent repair of existing regular laminated dentinal tissue, resulting in an amorphous and/or globular appearance, frequently with holes, cut- ting across and into regular tissue; 3) cemental disturbance: any anomalous appearance of the usual regular laminated cemental tissue, includ- ing mineralization interference and resorption; 4) pulp stones: discrete nodules containing con- centric rings in the dentine; 5) marker lines: both in dentine and often cementum: discrete laminae which are regular yet noticeably different in ap- pearance from the boundary layers in morphol- ogy and affinity for stain.\nResults of the scoring show that mineraliza- tion interference increases with age reaching 60- 100% incidence in animals over 14 years in both Icelandic and Faroese animals. The incidence is related to age rather than state of maturity. Cemental disturbance has a low incidence in Icelandic whales, and reaches ca 50% incidence in Faroese whales. This is also age-and maturity- related. Dentinal resorption has not been recorded in any immature animals of either sex. Incidence reaches a peak in old males, yet does not appear to greatly affect females until age 25 years. The dentinal resorption occurs very fre- quently in the Faroese animals, reaching almost 100% incidence in males. The incidence in\n8\nIcelandic animals is <10% until age 25+ years when incidence rises from 20% to 40% in very old animals (30+ years). The difference in these levels of incidence by location and sex could indicate varying degrees of susceptibility, perhaps genetical- ly controlled, or could simply be a measure of local stress factors produced by the environment or generated by behavioral traits within the school. Could such circumstances, revealed in the teeth, result in differential mortality and sex ratios? Pulp stones, when present, tend to be associated with age at which puberty usually occurs, and the in- cidence does not greatly increase thereafter. Marker lines occur throughout life at all ages, after age one year, regardless of state of maturity, and therefore, as anticipated, incidence increases with age; calen- dar year is also a significant factor for Icelandic samples. In particular, the year 1960 is very prominent for Iceland (both in Thorlakshofn and Rif), when >40% teeth from whales which would have been alive at that time exhibited a marker line. This year does not feature in the Faroese sample. What may have caused this is not known, but a future investigation of the environment at that time may be worthwhile. Of particular interest is the question that if factor(s) affecting two independent groups of Icelandic whales did not influence the Faroese group, could these whales have originated in separate regions and probably not mixed?\nObservations from the known-history captives indicate that likely stressors causing (directly or indirectly) mineralization anomalies may include sexual maturation, pregnancy and/or parturition, periods of starvation, as well as changes in health and life style. Environmental as well as inherent physiological rhythms are likely to be key factors worth investigating in the future.\nThis study was facilitated by the co-operation of the Sea World Research Institute and Hubbs Marine Research Center, San Diego, for provision of material and access to data on captive pilot whales. The provision of material and data on pilot whales by the Marine Research Institute, Reykjavik, Iceland, and also the Natural History Museum, Tor- shavn, Faroe Islands, are gratefully acknowledged. In particular, J. S. Leatherwood, J. Sigurjonsson and D. Bloch are thanked for their help. This study was funded by the U.S. Department of Commerce, Grant Award No: NA-88-ABH- 00040, while a resi- dent at the Southwest Fisheries Center, La Jolla, California, where facilities were made available. Help from Priscilla Akin, Aleta Hohn and Al Myrick is greatly appreciated. (C. Lockyer, FTS 893-7090)\nFISHERY DEPENDENT ASSESSMENT PROGRAM\nEffects of Dolphin Group, Percent Coverage, and Fleet Size on Estimates of Dolphin Mortality Derived From Tuna Vessel Observer Data.\nRecords of dolphins killed incidental to purse- seining for tuna by U.S. registered vessels fishing in the eastern tropical Pacific Ocean during 1987, were analyzed to assess the effects of three factors on estimates of dolphin mortality in- curred by an entire fleet, when only a portion of the fleet is actually observed. Data from 1987 were used because this is the first year that nearly 100% of trips carried observers. The three fac- tors were 1) dolphin group, 2) percent coverage (percent of fishing trips observed by scientific technicians), and 3) fleet size. Estimates were derived using the ratio estimator (kill/day) for eight dolphin groups (total dolphins, northern offshore spotted dolphins, eastern spinner dol- phins, whitebelly spinner dolphins, unidentified spinner dolphins, common dolphins, striped dol- phins, and other dolphins), for simulated fleet sizes of 33, 20, 10 and 5 boats, and simulated sampling levels of 25%, 33%, 50%, 75%, and 96% observer coverage.\nFour statistical aspects of these mortality es- timates were investigated to assess the effects of the three factors named above, on the estimates: 1) relative bias of the estimate, 2) coefficient of variation of the estimate, 3) frequency distribu- tions of replicate estimates, and 4) 95% con- fidence intervals of replicate estimates.\nMortality estimates and their statistical (sam- pling) characteristics were affected in decreasing order of influence by dolphin group type, per- cent coverage, and fleet size (Figures 1 and 2). The strongest control on estimates was the char- acteristics of the data contributing to the es- timates; for groups with relatively frequent and relatively similar kill/trip (e.g., total dolphins), a given level of accuracy and precision could be achieved with relatively low percent coverage even with relatively small fleets. Intermediate levels were adequate for groups with inter- mediate data characteristics (e.g., whitebelly spinner dolphins, with relatively infrequent but relatively homogeneous kills), but for dolphin groups with relatively rare and heterogeneous\n9\nkill/trip (e.g., common dolphins), much higher levels of coverage are required to achieve the same level of accuracy and the level increases with smaller fleets.\n28\nDOLPHIN GROUPS\n26 -\n24\nTOTAL\n22 -\nNORTHERN OFFSHORE\n20 -\nRELATIVE BIAS (%)\n18\nCOMMON\n16\n14\n12\n10 -\n8 -\n6\n4 -\n2\n0\n5\n10\n20\n15\n10\n20\n5\n10\n20\n25% COVERAGE\n50% COVERAGE\n75% COVERAGE\nFLEET SIZE (5,10,20)\nFigure 1. Relative bias in estimates of annual dol- phin mortality. The first three sets of columns show results for 25% coverage, the next three sets show results for 50% coverage, and the last three sets show results for 75% coverage.\n120\nDOLPHIN GROUPS\n110\nTOTAL\n100\nNORTHERN OFFSHORE\n90 -\nEASTERN SPINNER\n80 -\nCOMMON\n70 -\nCV (%)\n60 -\n50\n40 -\n30 -\n20\n--\n10 -\n0\n15\n10\n20\n5\n10\n20\n5\n10\n20\n25% COVERAGE\n50% COVERAGE\n75% COVERAGE\nFLEET SIZE (5,10,20)\nFigure 2. Coefficients of variation for estimates of annual mortality. The first three sets of columns show results for 25% coverage, the next three sets show results for 50% coverage, and the last three sets show results for 75% coverage.\nAs specific examples, coefficient of variations (CVs) 20% or less could be achieved for estimates of total annual mortality given 25% coverage of a fleet of 20 boats, or 50% coverage of a fleet as small as 5 boats. CVs of 20% or less for whitebelly spinner dolphins required coverages of at least 75% for a fleet of 5 boats, and at least 50% for fleets of 20 boats. CVs of 20% or less could not be achieved\nfor estimates of common dolphin annual mor- tality with coverages less than 100%, at any fleet size.\nBecause neither fleet size nor dolphin group type can be controlled by a sampling program, the only alternative available to achieve given levels of accuracy and precision in estimates of dolphin mortality is to manipulate the level of observer coverage. To protect equally all groups, it would be necessary to use the level required for those dolphin groups characterized by the \"messiest\" data. (E. Edwards, FTS 893- 7099)\nEnvironmental Variability in the Eastern Tropical Pacific, 1986-1988\nOceanographer Paul Fiedler reports that large interannual changes in the eastern tropical Pacific (ETP) are evident in environmental data collected on MOPS dolphin stock assessment cruises since 1986 (August-November, NOAA Ships McArthur and David Starr Jordan). A smoothed time series of the Southern Oscillation Index (Figure 3) shows that a moderate El Niño occurred in 1987. In 1988, this El Niño was followed by a cold-water event (\"La Niña\"). As an illustration of the extreme environmental variability observed during the first 3 years of MOPS, the range of SOI during 1986-1988 ex- ceeds the range before, during, and after the great 1982-1983 El Niño.\n-3\n-2\n-1\n5 0\n1\n2\n3\n70\n75\n80\n85\n90\nYEAR\nFigure 3. Smoothed time series of the Southern Oscillation Index (SOI). Data from Climate Diagnostics Bulletin (NOAA/NWC/Climate Analysis Center).\nAnomalously warm surface temperatures were observed in the central Pacific, at the western edge of our study area, by summer 1986 (Climate Diagnostics Bulletin, NOAA/NWS/Climate Analysis Center). Our XBT data were supplemented by some data from other NOAA ships and ships of opportunity. They were analyzed by Dave Behringer at NOAA/ERL/Atlantic Oceanographic and Meteorological Laboratory to produce fields of\n10\nEZ EASTERN SPINNER\nsurface temperature and depth of the 20℃ isotherm (thermocline depth).\nDuring August-November 1986, we observed surface temperature anomalies of 0 to +2℃ in the ETP, with the warmest anomalies in the equatorial cold tongue west of 105°W. The equatorial ther- mocline ridge was anomalously deep and displaced to the south. In 1987, surface temperature anomalies were at least +1℃ throughout most of our study area and +2 to +3℃ in the equatorial cold tongue. The depth and position of the equatorial ridge were closer to normal, but the thermocline ridge at 10°N, between the North Equatorial Countercurrent and the North Equatorial Current, was weaker than in 1986. These anomalies indicate changes in currents and water mass distribution associated with El Niño. In 1988, the equatorial cold tongue was as much as 3℃ colder than normal, but surface temperatures north of the equator were generally within 1℃ of normal. The equatorial ridge had shoaled, indicat- ing a strengthened South Equatorial Current.\n20\n15\n10\nLatitude\n5\nO\n-5\n1986\n-10 20\n35\n130\n125\n120\n115\n110 105\n100 ___ 95\n90\n85\n80\n75\n15\n10\nLatitude\n5\n0\n-5\n1987\n-10 20\n35\n1.30\n125\n120\n115\n110\n105\n100\n95\n90\n85\n80\n75\n15\n0,5\n10\nLatitude\n5\n0\n-5\n1988\n5,35\n130\n125\n120\n115\n110\n105\n100\n95\n90\n85\n80\n75\nLongitude\nFigure 4. Surface chlorophyll values (mg m~3) ob- served during MOPS cruises in August-November\nSurface chlorophyll data show a major biological response to the 1986-1988 environ- mental variability (Figure 4). Although no climatology exists for chlorophyll, the 1986 values appear \"normal\" compared to 1967 EASTROPAC results. Equatorial upwelling sus- tained high surface chlorophyll concentrations between 5°N and 5°S, increasing towards the coast of Ecuador and Peru. Chlorophyll values were low north of the 10°N thermocline ridge and to the west towards the oligotrophic sub- tropical gyre. In 1987, surface chlorophyll con- centrations were significantly lower than in 1986, especially along the equator where the temperature data indicated reduced upwelling of cold, nutrient-rich water. In 1988, surface chlorophyll concentrations were more than twice as high as in 1987 and also significantly higher than in 1986. Equatorial upwelling in 1988 was driven by anomalously strong trade winds (Climate Diagnostics Bulletin).\nWe will integrate these chlorophyll data with our temperature, nutrient and subsurface chlorophyll data in a presentation at the first annual conference of The Oceanography Society in August and in a paper to be submitted to Science. Many people have helped collect these data since this project was initiated by Fishery Biologist Steve Reilly, who is also direct- ing bird censuses and biological collections on the MOPS cruises. We acknowledge Vicky Thayer (formerly SWFC), Julie Ellingson (PMC), Gregg Thomas (AOML), Oceanographer Lisa Lierheimer and Computer Specialist Robert Hol- land. The results of these efforts will be an unprecedented time series of environmental data in the eastern tropical Pacific and will be invalu- able in the interpretation of variability in dolphin abundance and distribution. (P. Fiedler, FTS 893-7016)\nHONOLULU LABORATORY\nHonolulu, Hawaii\nScientists Participate in International Marine Debris Conference\nA number of fishery scientists from the Honolulu Laboratory participated in the Second International Conference on Marine Debris, which was held in Honolulu, Hawaii, April 2-7, 1989. Conference participants from all over the\n11\nworld presented more than 100 papers on a wide range of topics: sources of marine debris; entangle- ment and ghost fishing; ingestion of marine debris; economic impacts; and solutions through technol- ogy, law, public policy, and education. The con- ference was chaired by Richard S. Shomura, formerly director of the Honolulu Laboratory and a key figure in organizing the first International Conference on Marine Debris in 1984.\nFishery Biologist Tim Gerrodette of the Honolulu Laboratory presented the paper \"An ex- perimental study of derelict gill-net fragments in the central Pacific Ocean,\" which was coauthored by Fishery Technicians Barry K. Choy and Lisa M. Hiruki. The paper gives the results from a 1986-87 study on the behavior and fate of four fragments of a high-seas squid gill net (50-1,000 m long), which were observed closely for 3 days and subsequently tracked by satellite for up to 10 months. The net fragments changed length, shape, heading, and location under the influence of wind and current. The time a net remained open in a fishing con- figuration varied from hours to weeks, depending on its initial length. The nets drifted at an average speed of 15 km/day, but with frequent changes in direction, they remained in the general vicinity of the Hawaiian Archipelago. The complex move- ment of the net fragments means that predicting the drift of marine debris is an oceanographic problem requiring detailed knowledge of surface currents and wind.\nGeorge H. Balazs, Leader of the Marine Turtle Research Task, presented the paper \"Ecological aspects of marine turtles impacted by ocean debris, a 1989 perspective.\" Available evidence indicates that ingestion of man-made debris floating on the high seas has the greatest potential for adversely impacting sea turtle populations. A major problem in gathering detailed information on this phenomenon is the inability of researchers to locate pelagic habitats used by juvenile turtles of all species. Pelagic habitats used as foraging sites by sea turtles are believed to be frontal systems (con- vergences, rips, drift lines) where buoyant food and debris are drawn together by advection. Interna- tional concern for the impact of buoyant wastes in the ocean is heightened by the fact that many sea turtle populations are endangered and have ex- perienced serious declines from overfishing and other adverse factors.\nFishery Biologist John R. Henderson's paper \"Recent entanglements of Hawaiian monk seals in marine debris,\" documented 34 observed incidents of entanglement on Monachus schauinslandi in\n1985-88, including 4 known deaths, injuries to 2 seals, and 2 seals that had recent neck scars from injuries. The overall entanglement rate in- creased tenfold, from a low of 0.26 incidents/100 camp days in 1985 to a high of 2.66 inci- dents/100 camp days in 1988. This rise is probably attributable to higher amounts of marine debris on and around the islands where seals haul out. Sixty-nine entanglements have been documented since 1974.\nFor the conference, Fishery Biologist Raymond P. Clarke of the Honolulu Laboratory and Jo-Anne N. Kushima of the State of Hawaii's Division of Aquatic Resources, prepared the poster \"Marine debris and epipelagic fishes.\" Their poster documented two instances of marine debris apparently impacting two epipelagic fishes: 1) a mahimahi, Coryphaena hippurus (total length, 77.5 cm; weight, 2.06 kg including net fragment), with a monofilament nylon net fragment attached to its gills and oper- cular area, and 2) a swordfish, Xiphias gladius (total length, 140 cm; weight, 10 kg), with a rubber band cutting (ca. 3 cm deep) into the musculature forward of its caudal peduncle. (G. Boehlert (808) 943-1221)\nBiological Specimens Readied for Transfer to Major Museums\nThe specimen and sample storage area of the Honolulu Laboratory underwent a major clean- ing and reorganization, April 17-28, to create additional space for current and future biological samples. A committee, headed by Fishery Biologist John Henderson and composed of Fishery Biologists Paul M. Shiota, Ray F. Sumida and James H. Uchiyama, produced a plan in January for the reorganization.\nMany of the staff reorganized storage areas and discarded samples of little value to the scien- tific community, including deteriorated, un- labeled, or easily replaced specimens. Specimens of fish and invertebrates, no longer of use to Honolulu Laboratory scientists but from Pacific areas not often sampled, were desig- nated for transfer to major museums. A list of these samples was then sent to various institu- tions, with a request to indicate whether they wished to include any of the samples in their collections.\nCollections from the current reorganization were allocated to several institutions, with the guidance of Dr. Bruce B. Collette, Director of the\n12\nNMFS Systematics Laboratory. Specimens had been obtained in previous years by the U.S. Nation- al Museum of Natural History, Washington, D.C., and the Bernice P. Bishop Museum, Honolulu, both identified by the NMFS Systematics Laboratory as the most important repositories for the Honolulu Laboratory's collections. A number of other museums expressed interest but could not actively aid in the transfer of specimens. Robert J. Laven- berg of the Los Angeles County Museum of Natural History (LACM) visited the Honolulu Laboratory on April 4-5 to identify specimens of interest to LACM and arrange for two curatorial assistants to pack them during May 3-10 for shipment to LACM.\nThe LACM will catalogue and curate the samples and, for the specimens not needed in Los Angeles, arrange for their transfer to the American Museum of Natural History, California Academy of Sciences, and Museum of Comparative Zoology at Harvard (MCZ). The Honolulu Laboratory's specimens at the LACM will be available for inspection or loan to any qualified scientists needing them for research. Also, Scripps Institution of Oceanography has re- quested that zooplankton samples collected in the 1950's through the 1970's be held for future trans- fer.\nUnused collections of larval and juvenile fishes are also being donated to LACM, for division be- tween that museum and MCZ. Both institutions have received National Science Foundation grants in recent years to build major larval fish research collections. These grants are a result of the interest in ontogenetic characters useful in fish systematics generated by the Ahlstrom memorial symposium held at the NMFS SWFC La Jolla Laboratory in 1983.\nThe transfer of the Honolulu Laboratory's col- lections to LACM will make them available to the entire scientific community. The aid provided for the transfer by LACM in funding, supplies, and personnel will make this possible. (B. Mundy (808) 943-1212)\nFISHERIES OCEANOGRAPHY RESEARCH PROGRAM\nBoehlert Presents Seamount Paper in Azores\nLaboratory Director George W. Boehlert presented the paper \"Biological processes on seamounts and their role in fisheries productivity\"\nat the 9th Week of Fisheries of the Azores, a conference held in Horta, Faial, Azores, March 6-10, 1989. His paper drew considerable inter- est because of the large number of seamounts in the Azorean region and the similarities between Hawaii's and the Azores' fisheries (e.g., tuna, insular fishes).\nThis meeting brings together various fisheries expertise from around the world to address problems concerning the Azorean fisheries. About 200 foreign and local participants presented scientific papers as well as economic, marketing, and other industry-related papers, such as one on vessel financing. Discussions at the meeting focused on the Azorean fisheries' problems and needs (e.g., research, data, economics, markets). Azorean fishermen who attended the meeting seemed quite interested in the issues discussed.\nThe Azorean fisheries, particularly for tuna, are expanding, although most European Economic Community (EEC) countries are in the process of reducing fishing power and tonnage under guidance of the European Commission, whose representatives attended the meeting. In the next decade, the exclusive economic zones (EEZ's) of all EEC countries will be \"opened up\" to the community. It is perceived that the fisheries of the Azores and Madeira are not fully utilized; therefore, expansion of the fleets is being allowed in these two areas before the EEZ is opened. Between now and 1991, the Azores can increase tonnage by 20% and fishing power by 37%. Also planned is the expansion of the tuna catch -- mainly skipjack tuna, Katsuwonus pelamis, and bigeye tuna, Thunnus obesus -- from 18,000 metric tons (t) to 30,000 t. (G. Boehlert (808) 943-1221)\nPELAGIC RESOURCES INVESTIGATION\nResearch on \"Burnt Tuna\" Progressing\nResearch on \"burnt tuna\" is being conducted by Cheryl Watson, a graduate student in the Department of Physiology, John A. Burns School of Medicine, University of Hawaii, utiliz- ing the Honolulu Laboratory's Kewalo Research Facility. \"Burnt tuna\" is a product quality prob- lem affecting large yellowfin tuna, Thunnus al- bacares, and bigeye tuna, T. obesus, intended to be sold for \"sashimi\" (i.e., for raw consumption).\n13\nAlthough perfectly edible when cooked, burnt tuna is considered unsuitable for the sashimi market and therefore commands only a small fraction of the price of top quality fish.\nAn exact measure of the cost of burnt tuna to the Hawaiian tuna fishing industry is not available, but the total, annual, direct ex-vessel losses are es- timated at $3.0 million. (This figure does not take into account retail losses or potential export markets that remain undeveloped.) The ex-vessel value of yellowfin and bigeye tuna landings in Hawaii was $12 to $20 million in 1987, so the importance of the burnt tuna problem can be easily appreciated. Reliable, cost-effective techniques to prevent or minimize this problem are clearly needed.\nWatson's research is centered on the new hypothesis that burnt tuna is not directly caused by acidity and high muscle temperature that occur during capture, but rather is a result of digestion of specific muscle proteins by calcium-activated proteases (i.e., enzymes that cause protein destruc- tion), which become activated postmortem. This theory was originally delineated by Peter W. Hochachka and Richard W. Brill (\"Autocatalytic pathways to cell death: a new analysis of the tuna burn problem,\" Fish. Physiol. Biochem. 4:81-87, 1987).\nWatson has expanded this basic hypothesis to include the theory that adrenaline and noradrenaline, which are hormones that fish produce in response to stress, accelerate the activity of calcium-activated proteases (\"A comprehensive theory on the etiology of burnt tuna,\" Fish. Bull. 86:367-372, 1988). The expanded theory ex- plains why the \"burnt tuna syndrome\" occurs more often in fish caught by handline and rod and reel, and in female fish caught during the summer. It also explains why other measures to reduce the in- cidence of burnt tuna, such as chilling and brain destruction are relatively ineffective.\nUsing an electron microscope, Watson has found that samples taken from burnt tuna showed charac- teristic deterioration in muscle structures known to be specifically attacked by calcium-activated proteases (the Z-disk was selectively removed from the sarcomeres of burnt tuna), confirming the original hypothesis. More recently, biochemical analysis of burnt tuna, conducted by using SDS- PAGE electrophoresis, indicates that a specific protein appears to be attacked by the calcium-ac- tivated proteases. The specific identity of this \"marker protein\" is yet unknown, but immunologi-\ncal testing (Western blot technique) is being used to determine its identity. More important, since this protein is a reliable indicator of burnt tuna, it may eventually be possible to develop a test that obviates the current practice of quartering tuna suspected of being burnt. This need to cut open the fish to check for burnt tuna devalues the fish even if it is not burnt.\nHeretofore the burnt tuna syndrome has been recognizable only in wholesale fish markets. Work is now under way to reproduce the syndromes in the laboratory, by using small, isolated muscle samples. Work done in this man- ner to date indicates the proposed theory is correct and that the muscle deterioration in burnt tuna is due to a calcium-based proteolysis. Surprisingly, the biochemical causes of burnt tuna also appear to be the same as those causing damage to the human heart muscle during heart attack and those causing some forms of muscular dystrophy. Work on burnt tuna may therefore have implications to medical science as well as to fishery science. (R. Brill (808) 943-1234)\nMARINE MAMMALS AND ENDANGERED SPECIES PROGRAM\nHawaiian Monk Seal Births Are Increasing\nSince 1983, personnel of the National Marine Fisheries Service have tagged the weaned pups of Hawaiian monk seals, Monachus schauinslan- di, at all breeding locations in the Northwestern Hawaiian Islands, to monitor pup production and survival (Figure 1). The pup production\n125\nFr. Frigate Shoals\n100\nNUMBER OF PUPS\n75\n50\nLaysan\nPearl and Hermes\n25\nLisianski\nKure\n0\n1983\n1984\n1985\n1986\n1987\n1988\nYEAR\n14\ncount includes all tagged pups, known deaths, and pups still nursing at the end of the field season. More than half of all births occur at French Frigate Shoals. Total births have increased over the past 2 years. Total known production was 161-184 pups in 1983-86, 204 pups in 1987, and 223 pups in 1988. The recent overall increase reflects increases in the numbers of pups born at French Frigate Shoals, Laysan Island, and Kure Atoll. The num- bers of pups born at Lisianski Island and Pearl and Hermes Reef show no clear pattern and are less complete because of the low field effort at these two locations. (T. Johanos-Kam (808) 943-1221)\nGreen Turtle Habitats in Kaneohe Bay Documented for Long-Term Monitoring and Assessment\nTwo discrete habitat sites in Kaneohe Bay, Oahu, were recently identified as being intensively used by the green turtle, Chelonia mydas, according to George H. Balazs, Leader of the Marine Turtle Research Task. One site (ca. 0.25 km2 3-7 m deep) is used as a benthic resting area for adult and immature turtles, and its bottom substrate is mainly outcroppings of Porites coral. The other site is a shallow ( m deep), narrow, sandy bottom zone (100 m wide by 1 km long) where turtles forage on a luxuriant meadow of sea grass, Halophila hawaiiana.\nDuring three daytime study visits to these sites, 15 turtles were hand-captured by researchers using scuba or snorkel gear. All turtles were measured and tagged, and the status of their health was assessed prior to release. No previously tagged turtles were encountered, although existing records show that adults originally tagged at the breeding site of French Frigate Shoals 750 km to the northwest have been resighted in Kaneohe Bay.\nTwo problems were identified during the course of this preliminary investigation. Fibropapillomas were found on 8 (57%) of the 15 turtles captured, constituting the highest rate seen thus far anywhere in Hawaii. The sizes of these epithelial growths ranged from 0.5 to 8 cm in diameter or length. Two of the turtles had multiple, extensive growths, which likely were interfering with normal behavior. Studies at other sites in Hawaii have shown that fibropapillomas on green turtles can grow rapidly and reach gross proportions in only 2-3 years. The second problem identified was the displacement of turtles from segments of the Halophila foraging pasture. This is due to tour operators and other vessels anchoring within the zone on a daily basis\nfor recreational activities with large groups of people.\nMore information will be generated on both of these problems with the implementation of a long-term research and monitoring program. In the immediate future, cooperative work will take place with a veterinary pathologist from the University of Florida; the pathologist will visit Hawaii to biopsy fibropapillomas in search of the elusive etiological agent. (G. Balazs (808) 943- 1221)\nFISHERY MANAGEMENT RESEARCH PROGRAM\nPreliminary Estimates of Hawaii's Fisheries Landings and Value in 1988\nPreliminary estimates of Hawaii's commercial fishery were prepared by Samuel G. Pooley, Industry Economist, for inclusion in the NMFS publication, Fisheries of the United States, 1988. The estimates, using the publication's rather un- usual reporting requirements, are as follows:\nSpecies group\nPounds (1,000's)\n$US (1,000's)\nMarlin\n2,757\n2,853\nBottom fish\n1,675\n2,647\nTunas\n12,705\n23,754\nShellfish\n1,531\n5,508\nOther fish\n2,463\n4,987\nTotal\n21,131\n39,749\nThese figures, which show a 30% increase over 1987, should be used only as early indica- tions of Hawaii's fishery status in 1988. Revised figures will be included in the annual report modules prepared for the fishery management plans for the Western Pacific Regional Fishery Management Council (Council).\nPreliminary Status Report on the Bottom Fish Fishery in the Northwestern Hawaiian Islands\nA brief status report on Hawaii's bottom fish fishery was prepared for the Council's April meeting in American Samoa. The report, which is based on preliminary data from NMFS market sampling, shows that bottom fish landings in Hawaii have remained about the same for the past 3 years. However, landings from the Northwestern Hawaiian Islands (NWHI) have fallen by 34% since 1986, while landings from\n15\nthe main Hawaiian islands have increased by 89%. Only 13 vessels were active in the NWHI bottom fish fishery in 1988. Activity at year's end was quite low.\nStatistician Shares Data on Foreign Longline Fishery in Pacific\nPeter Williams, Assistant Fisheries Statistician of the Tuna and Billfish Assessment Programme of the South Pacific Commission (SPC), visited the Honolulu Laboratory in March 1989 to share data on the foreign longline tuna fishery in the Pacific. Williams prepared a dBASE III menu program to integrate NMFS and SPC tuna longline logbook data while preserving confidentiality of the NMFS data. The program searches for corresponding ves- sels, checks overlapping data by date of set, and writes the location at the 10° square level of ac- curacy.\nSmall Boat Fishery Economics for American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands\nLaurel Kasaoka, Cooperative Researcher with the Council, completed compilation of small boat economic data from surveys conducted last year in American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands. Data on basic vessel operating patterns, economic costs, and revenues are summarized in her report \"Summary of Small Boat Economic Surveys from American Samoa, Guam, and the Northern Mariana Islands\" (Administrative Report H-89-4C) and will be in- tegrated into a descriptive report with joint authors from each of the three areas.\nPrecious Coral Fishery Revives\nThe Fishery Management Research Program received its first log under the Precious Coral Fishery Management Plan (FMP). The log reports the harvest and number of fishing days for one trip taken under the existing quotas of the FMP. This trip represented the second taken by a domestic vessel in the western Pacific precious coral \"fishery,\" but the previous trip was taken to an area of the fishery conservation zone that, prior to the recent FMP amendment, required neither a permit nor logs. Because only one vessel has participated in the fishery, no data summaries can be released. Recently, two vessels requested experimental per- mits to fish in areas and in quantities otherwise precluded by the FMP. Both applications are pend- ing action by the Director of the Southwest Region. (S. Pooley (808) 943-1216)\nPACIFIC FISHERIES ENVIRONMENTAL GROUP\nMonterey, California\nFISHERY/ENVIRONMENTAL LINKAGES\nChapters Prepared for Peruvian Upwelling Volume\nApplication of the comparative method of science is one promising approach toward developing improved insight into the interac- tions of fish population dynamics and natural environmental variability. For a number of years PFEG scientists have been developing a framework of comparative climatology of neritic habitats from which to draw generalized inferen- ces as to stock - recruitment issues, identification of trends in fishery productivity, interspecies in- teractions, effects of habitat alterations or climatic change, etc. This has involved certain international collaborations.\nFor the past several years, one aspect of PFEG activity in this direction has been participation in a multilateral study of the population dynamics and ecosystem characteristics of the Peruvian anchoveta. The co-sponsors of the study are the Instituto del Mar del Peru (IMARPE); the Federal Republic of Germany's Deutsche Gesellschaft fr Technische Zusammenarbeit (GTZ), and the In- ternational Center for Living Aquatic Resources Management (ICLARM). PFEG scientists prepared three chapters for an initial volume, \"The Peruvian Anchoveta and Its Upwelling Ecosystem: Three Decades of Change,\" which was published by ICLARM in 1987.\nWithin the past few months, PFEG scientists have prepared four new chapters to be included in a second volume, to be entitled \"The Peruvian Upwelling Ecosystem: Dynamics and Interac- tions.\" These have been transmitted to ICLARM and are now in press. The titles, authors names, and abstracts are listed below.\nAndrew Bakun. Mechanisms for Density-De- pendent Growth of Anchoveta: Alternatives to Impact on the Regional-Scale Food Supply.\n16\nTwo alternate classes of mechanisms that could account for evidence of density-dependent growth are introduced: 1) effects of potential linkages of school size with population size, and 2) effects of size-dependent predation. These may lead to dif- ferent interpretations with respect to resilience to exploitation, carrying capacity of the habitat, etc., from those implied by the more commonly cited class of mechanisms which involve impact of the population on its food supply.\nAndrew Bakun and Roy Mendelssohn. Alongshore Wind Stress 1953-84: Correction, Reconciliation, and Update through 1986.\nCorrected values are presented for the monthly series of alongshore stress presented in the previous volume of this series. The series is updated through 1986. The faulty \"old\" and corrected \"new\" series are compared and found to have very similar properties. It is concluded that studies that may have been based on the \"old\" series will not be significantly in error.\nRoy Mendelssohn. A Reanalysis of Estimates of Recruitment of the Peruvian Anchoveta in Relation- ship to the Other Population Parameters and to the Surrounding Environment.\nThe new recruitment estimates of the Peruvian anchoveta are analyzed with respect to other population parameters and the surrounding ocean. environment. The inshore and offshore environ- mental variables are shown to differ in their dynamics, and the inshore series vary north to south. For the inshore locations, it is not possible to resolve whether a wind related effect is due to transport or turbulence. The new recruitment es- timates differ significantly from the old estimates, partly due to mackerel consumption acting as a surrogate for SST. Models using the monthly data were not possible due to correlations in the popula- tions that could be spurious. On a yearly basis, a nonlinear additive model using parent biomass and transport at Trujillo explained 75% of the variance in the recruitment estimates.\nRichard H. Parrish. The South Pacific Oceanic Horse Mackerel (Trachurus picturatus murphyi) Fishery.\nThe horse mackerel fishery of the South Pacific currently dominates the world's catch of horse mackerels. The rapid increases in catches of horse mackerel by South American purse seine fleets and the distant water USSR trawl fleet are discussed and\nthe geographical expansion of the trawl fishery is shown utilizing ship surface weather observa- tions.\nDue to disagreement on the taxonomic iden- tity of the species which supports the fishery a review of the world's Trachurus was made. The results of this review show that neither of the eastern Pacific forms of Trachurus merits full species rank. It is concluded that both are sub- species of the oceanic horse mackerel (Trachurus picturatus); T. p. symmetricus in the north- eastern Pacific and T. p. murphyi in the southeastern Pacific. It is further suggested that it is likely that the range of T. p. murphyi extends clear across the southern hemisphere west wind drift region (i.e. from the south Atlantic to Chile). (A. Bakun (408) 646-3311)\nPELAGIC FISHERIES RESOURCES DIVISION\nLa Jolla, California\nFISHERY MONITORING AND EVALUATION PROGRAM\nStatistics Reviewed on the U.S. Canned Tuna Industry for 1988\nStatistics describing the U.S. canned tuna in- dustry for 1988 were recently compiled by Wes Parks, SWFC; Pat Donley, SWR; and Sam Her- rick, SWFC, and presented as a feature article in the May issue of the Region/Center Tuna Newsletter. Data shows that the number of ac- tive U.S. purse seiners declined to 74 in 1988, continuing the trend begun in 1984 (Figure 1).\n130\n120\n110\n100\n90\n80\nNUMBER\n70\n60\n50\n40\n30 -\n20 -\n10 -\n0\n1982\n1983\n1984\n1985\n1986\n1987\n1988\nYEAR\nFigure 1. Number of active (at least one trip during the year) U.S. purse seiners, 1982-1988.\n17\nIn 1988, 57% of the vessels operated in the eastern Pacific and 43% operated in the western Pacific.\nTotal receipts of raw tuna by U.S. canneries declined slightly in 1988, but were still well above the recent low of 450,000 short tons of 1985 (Fig- ure 2). Total receipts were 510,471 short tons with imports contributing slightly more than domestic deliveries. Skipjack tuna was the principal species in both domestically-caught and imported receipts. Major foreign suppliers were Taiwan, South Korea, and Ghana. The western Pacific was the major source of albacore and skipjack tuna whereas the eastern Pacific contributed the greatest quantity of yellowfin tuna.\n600\n.\n500\nRECEIPTS (1,000 short tons)\n400\n300\n200\n100 -\n0\n1982\n1983\n1984\n1985\n1986\n1987\n1988\nYEAR\nFigure 2. U.S. cannery receipts of raw tuna, 1982- 1988.\nContract prices for domestically-caught raw tuna delivered to U.S. canneries in American Samoa and Puerto Rico in early 1988 were slightly higher than in late 1987, then declined later in the year to levels below those of 1987. Weighted average exvessel prices paid by canners for domestically-caught tuna increased for the third straight year to $1,094 per ton for yellowfin tuna, and to $977 per ton for skipjack tuna, and were at their highest level since 1982.\nU.S. production of canned tuna declined slightly in 1988 reversing the recent increasing trend (Fig- ure 3). U.S. canners packed 31 million standard cases of tuna valued at over $960 million. U.S. imports of canned tuna reached a record high con- tinuing the increasing trend of recent years. Total imports were 12.5 million standard cases of tuna, valued at over $298 million. Wholesale list prices in California for canned tuna in early 1988 was at late 1987 levels, but rose slightly by year's end.\n35\n30\nPRODUCTION (million standard cases)\n25\nA\n20\n15\n10\n5\n0\n1982\n1983\n1984\n1985\n1986\n1987\n1988\n1.1\n1.0\n0.9\nVALUE (million U. S. dollars)\n0.8\n0.7\nB\n0.6\n0.5\n0.4\n0.3\n0.2.\n0.1\n0.0\n1982\n1983\n1984\n1985\n1986\n1987\n1988\nYEAR\nFigure 3. U.S. production of canned tuna: A. Volume, B. Value.\n(W. Parks, FTS 893-7074)\nSTOCK ASSESSMENT AND IMPACT ANALYSIS PROGRAM\nPacific International Billfish Angler Survey\nThe Pacific International Billfish Angler Sur- vey, which started in 1969, annually collects information on billfish angler catch rates in the Pacific and Indian Oceans. This is the 19th year of the Survey. Results of the previous year's Survey, determined from the responses from billfish anglers, are updated in each issue of the Billfish Newsletter.\nResults - 1987 Survey\nIn 1987, the total number of billfish fishing days (or angler days) reported by those anglers responding to the Survey was 14,847. Of this number, 13,722 angler days were reported for the Pacific Ocean (and Indo-Pacific), and 708 angler days reported for the Indian Ocean. The remaining angler days, 417, were reported by\n18\nanglers fishing in the Gulf of Mexico, Caribbean Sea or Atlantic Ocean.\nAnglers responding to the Survey reported catching 6,625 billfish in the Pacific Ocean and 364 billfish in the Indian Ocean, for a total of 6,989 billfish. Species breakdown for the Pacific Ocean catch was 997 blue marlin, 368 black marlin, 3,460 striped marlin, and 1,800 sailfish. For the Indian Ocean, it was 17 blue marlin, 8 black marlin, 26 striped marlin, and 313 sailfish. The catch rate for\nthe Pacific Ocean was 0.48 fish per day or 2.1 days per fish. For the Indian Ocean, the rate was 0.51 fish per day or 1.94 days per fish. These catch rates are lower than those reported in 1986, 0.51 for the Pacific, and 0.66 for the Indian Ocean.\nThe Pacific Ocean angler catch rate for 1987 is 13% below that determined for the 1969-1972 period (0.55 fish per day).\n1.2\n80\n1.1\n187\n1.0\n94\n0.9\nSTRIPED MARLIN\n294\n2,793\n0.8\n249\n0.7\n-2,519\nFISH PER DAY\n583\n0.6\nBAJA CALIFORNIA, MEXICO\nMAZATLAN,\n2.647\n1,785\n1,769\n0.5\nMEXICO\n290\n2,239\n2.838\n2.797\n461\n0.4\n144\n272\n190\n115\n0.3\n2.039\n99\n136\n2,696\n128\n150\n218\n2,997\nCALIFORNIA, USA\nMAZATLAN\n0.1\n2,093\n4,921\n2,874\n147\n0.0\n1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 YEAR\nFigure 4. CPUE (number of fish/angler day) for striped marlin and number of angler days reported fish- ing in important catch areas, 1969-1987.\n0.5\nBLUE MARLIN\n186\n22\nTAHITI\nFISH PER DAY\n77\n0.4\n234\n21\n34\n47\n49.\n88\n.66\n1.435\n324\n.57\n0.2\n/2.018\n-1,448\n2,926\n222\n2,826\nN.D. no data\n3,652\n1,536\n36\nGUAM\nN.D.\nN.D.\n14\n0.0\n1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 YEAR\nFigure 5. CPUE (number of fish/angler day) for blue marlin and number of angler days reported fishing in important catch areas, 1969-1987.\n1.6\n106\n357\nBLACK MARLIN\n1.4\nFISH PER DAY\n1.2\nAUSTRALIA\n1.0\n706\n558\n0.8\n414\n0.6\n560\n708\n886\n662\n0.4\n-755\n0.2\n262\n0.0\n1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983\n1984 1985 1986 1987\nYEAR\nFigure 6. CPUE (number of fish/angler day) for black marlin and number of angler days reported for fish- ing in important catch areas, 1969-1987.\n19\n1\n2,212 1 900\n2,678\n2,848 3,383\n.\n5.684\n3,900\n2.666\n110\n90\n3,969 SO. CAL.\n2.297 2,068\n4,409\n3,596\n2,186\nSOUTHERN\n149\n0.2\n294\n2,551\n3,138\n125\n1,700\n145\nECUADOR\n100\n197\n3,398\n3,436\n3,525\n2,805\n200\nBAJA, CAL.\n239\n2,746 4,428\n4,215\n292\nHAWAIIAN ISLANDS\n0.3\n1,984\n13-\n32\n1,377\n953\n1,961\n34\n677\n70\n0.1\n84\n1,003\n1,826\n1,036\n1,119\n503\n689\n601\n540\n820\n574\n2.4\n2.2\n240\n2.0\n1.8\n284\n1.6\nACAPULCO, MEXICO\n39\n15€\n96\n314\nJ\n417\n328 PANAMA\n42\n120\n4370\n126\nFISH PER DAY\n1.0\n112\n340\n183\n53Z\n461\n30\n115\n293\n0.8\n.\n97\n377\n150\n347\nDUBAI\n0.6\n290\n583\n106\nMAZATLAN, MEXICO\n735\n294\n218\n125\n178\n2.519 3,398 2,793\n3,436\n1,700\n2,647 2,239\n1,785 2,186\n2,551\n2,838\n3,525\n4,215\n2,797\n2,874 1,769\n2.746\n4,428\n0.0\n1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986\nYEAR\nFigure 7. CPUE (number of fish/angler day) for sailfish and number of angler days reported for fishing in important catch areas, 1969-1987.\nGraphics showing CPUE (catch per angler day) data are given for some fishing areas, for striped marlin (Figure 4), blue marlin (Figure 5), black marlin (Figure 6), and sailfish (Figure 7).\nTable 1. Results of 1987 Billfish Angler Survey - More than 100 angler days reported.\nAngler Fishing No. of Days\nBillfish/ Fishing Day\nFishing Days/\nMajor\nBillfish\nBillfish Species\nPacific Ocean\nBaja California, Mexico (tip area)\n4,428\n3,236\n0.73\n1.3\nSM\n(2,746)\n(2,022)\n(0.74)\n(1.3)\n(SM)\nSouthern\n3,969\n499\n0.12\n7.9\nSM\nCalifornia, U.S.A.\n(3,596)\n(401)\n(0.11)\n(8.9)\n(SM)\nHawaii, U.S.A.\n1,961\n492\n0.25\n3.9\nBLM\nColombia\n8\n7\nSF\nAustralia\n601\n314\n0.52\n1.9\nBKLM\nPuerto Vallarta, Mexico\n7\n5\nBKLM\nRevillagigedo Island, Mexico\n5\n1\nBKLM\nNew Zealand\n560\n34\n0.06\n15.2\nSM\nSamoa\n4\n4\nSM\nCosta Rica\n437\n577\n1.32\n0.7\nSF\n(SF) SF\nIndian Ocean\nMauritius\n76\n14\nBLM\nEcuador\n249\n225\n0.90\n1.1\nSM\nArabian Gulf (Dubai)\n39\n28\nSF\nAcapulco, Mexico\n203\n189\n0.93\n1.1\nSF\nSomalia\n20\n1\nSF\nSouth Africa\n9\n1\nSF\nMazatlan, Mexico\n128\n110\n(0.94\n(1.1)\n(SF)\nGuaymas/Kino, Mexico\n119\n14\n0.11\n8.5\nSF\nGuatemala\n116\n148\n1.27\n0.8\nSF\nManzanillo, Mexico\n107\n58\n0.54\n1.8\nSF\n-\n-\n-\nIndian Ocean\nKenya\n456 (1,891)\n(1,194)\n0.63\n(1.6)\n(SF)\n1SM-Striped Marlin; BKLM- Black Marlin; BLM- Blue Marlin; SF- Sailfish\nTables 1 and 2 give the results of the 1987 survey submitted by anglers, by landing locations in the Pacific and Indian Oceans. The tables include loca- tion, number of angler days reported, number of\nTable 2. Results of 1987 Billfish Angler Survey - Less than 100 angler days reported\nAngler Fishing Days\n# of Billfish\nMajor Species\"\nPacific Ocean\nThailand\n72\n120\nSF\nTahiti\n66\n19\nBLM\nGuam\n57\n19\nBLM\nPapua New Guinea\n51\n4\nBKLM\nPeru\n45\n16\nSM\nFiji\n38\n3\nBLM\nJapan\n28\n6\nBLM\nSan Blas, Mexico\n25\n6\nSF\nMalaysia\n25\n5\nBKLM\nCaroline Islands\n17\n2\nBLM/SF\nChile\n12\n0\nChristmas Island\n9\n2\nSF\n(2,826)\n(836)\n(0.30)\n(3.2)\n(BLM)\n(820)\n(615)\n(0.75)\n(1.3)\n(BKLM)\n(532)\n(35)\n(0.07)\n(15.2)\n(SM)\nNicaragua\n3\n4\nSF\nPanama\n328\n597\n1.82\n(2.07)\n(0.4)\n(SF)\n(200)\n(160)\n(0.80)\n(1.2)\n(SM)\nMaldive Islands\n24\n4\nBKLM\n(565)\n(506)\n(0.90) 0.86\n(1.1)\n(SF)\n1.2\nSF\n(145)\n(124)\n(11)\n(0.09)\n(11.2)\n(SF)\n(21)\n(9)\n(0.43)\n(2.3)\n(SF)\n317\n0.69\n1.4\nSF\n243\nSAILFISH\nV 333\n1.4\n1.2\n69\n58\n455\n46\n74\n1,193\n100\n203\n188\n138\n565\n· ACAPULCO\n97\n272\n64\n190\n149\n144\n90\n455\n110\n1,891\n0.4\n99\n128 MAZATLAN\nBAJA CALIFORNIA, MEXICO\n0.2\n2,805\n255-2\n147\n145\n39 DUBAI, UAE\n54\n78\n418\n220\n246\nCOSTA RICA\n40\n78\n6199\nBAJA\n1987\nSM- Striped Marlin; BKLM- Black Marlin: BLM- Blue Marlin; SF- Sailfish\nbillfish reported caught, CPUE in terms of fish/day and days/fish, for locations having over 100 angler days reported, major species reported for area, and number of angler days and catch for areas reporting less than 100 angler days. Information on 1986 data is given in parenthesis (-) for comparison, for areas having over 100 anger days reported. (J. Squire, FTS 893- 7072)\n20\n0.5\n(284)\n(588)\n(1.06)\n(0.9)\n(1,193)\n(1,268)\n(137)\n· KENYA\nMULTISPECIES DATA COLLECTION AND EVALUATION PROGRAM\nPacific Albacore Data Bases Updated\nAnthony Majors, Fishery Biologist and Christina Perrin, Computer Programmer, have finished up- dating the Pacific albacore data bases with data from the 1988 southern and northern fisheries. Data are routinely collected for the northern fishery by port samplers in California, Washington and Oregon. Data for the southern fishery are collected by Gordon Yamasaki, Fishery Biologist, in American Samoa and by a sampler in Tahiti. Data are also submitted directly, from both fisheries, by vessel captains.\nData for the northern fishery consists of 268 logbooks, 168 vessel characteristics, and 248 length-frequency samples totaling over 21,000 fish. Preliminary summaries of these data show that the average sizes of fish sampled have decreased from 14.9 lbs in 1987 to 12.4 lbs in 1988 and catch rates in fish-per-standard-days fishing have increased from 70 in 1987 to 117 in 1988.\nOther than two experimental years of fishing in 1986 and 1987, 1988 was the first year of substan- tial U.S. participation in the south Pacific albacore fishery. Data for the austral fishery consist of 15 logbooks and 58 length-frequency samples of over 4,000 fish. Preliminary summaries show that the average sizes of fish sampled have decreased from 17 lbs in 1987 to 15 lbs in 1988 and catch rates, in fish-per-standard-days fishing, decreased from 316 in 1987 to 242 in 1988.\nThe data for both fisheries are being summarized by Majors and Perrin as a Center Administrative Report. (A. Majors, FTS 893- 7077)\nSeychelles Purse Seine Fishery Data\nAl Coan, Mathematical Statistician, reports that data for purse seiners fishing in the area around the Seychelles for the last quarter of 1988, have been received from the Seychelles Fishing Authority and added to Center data bases. The data bases are available on PC diskettes and are in LOTUS spread- sheets.\nThe 1988 fishing season was dominated by ves- sels from France (20 vessels) and Spain (18 ves- sels). Also participating in the fishery were vessels from the USSR (4), Mauritius (3), Panama (1), Japan (1) and India (1). Catches of yellowfin and\nskipjack tunas in 1988 reached a record high of 213,000 mt, increasing 32% over catches in 1987 (Figure 8). The percentage of skipjack and yellowfin tuna in the catch was 53% and 47% respectively and returned to levels recorded in the period 1981-1985. Yellowfin tuna catches showed the highest percent increase, 64%, over 1987 yellowfin catches, whereas skipjack catches only increased 13%.\n220\n200\n180\n160\nTOTAL\n140\nCATCH (MT)\n(Thousands)\n120\n100\nSKIPJACK\n80\n60\nYELLOWFIN\n40\n20\n0\n1981\n1982\n1983\n1984\n1985\n1986\n1987\n1988\nYEAR\nFigure 8: Purse seine catches of yellowfin and skipjack tunas in the western Indian Ocean.\n23\n22\n21\n20\n19\nMETRIC TONS PER DAY FISHED\n18\nTOTAL\n17\n16\n15\n14\n15\n12\nSKIPJACK\n11\n10\n9\n8\nYELLOWFIN\n7\n6\n5\n1983\n1984\n1985\n1986\n1987\n1989\nYEAR\nFigure 9: Purse seine catch rates in metric tons per day fished for the western Indian Ocean.\nCatch rates increased from approximately 18 mt/day fished in 1987 to 22 mt/day fished in 1988 (Figure 9). Yellowfin tuna showed the greatest increase in catch rate from 7 mt/day fished in 1987 to over 10 mt/day fished in 1988. Catch rates in October of 35 mt/day fished were the highest ever recorded in the western Indian Ocean. (A. Coan, FTS 893-7079)\nTuna/Dolphin Data Bases Updated\nData collected in 1988 by NMFS technicians (observers) aboard U.S. tuna purse seiners fish- ing in the eastern tropical Pacific Ocean have been edited by Biological Technicians Randy\n21\nRasmussen and Mike Trianni and placed into the tuna/dolphin database. This database contains in- formation used to investigate the distribution, abundance, mortality and life history of the dolphin stocks involved in the eastern Pacific yellowfin tuna fishery.\nIn 1988, NMFS observers were on board for 31 of the 60 U.S. fishing trips and observed a total of 847 sets on dolphins. Observers counted a total of 3,373 dolphins killed in these sets for a dolphin kill per set rate of 4.00 animals and a kill per ton of tuna rate of 0.23. These rates are slightly higher than those observed in 1987 of 3.00 animals per set and 0.18 animals per ton. (A. Jackson, FTS 893-7048)\nTIBURON LABORATORY\nTiburon, California\nGROUNDFISH ANALYSIS INVESTIGATIONS\nCovariation of Daily Growth and Birthdate Distributions of Four Juvenile Rockfish (Sebastes) Species\nSurveys of pelagic juvenile rockfish (Sebastes sp.) inhabiting the coastal waters off central California have been conducted since 1983 by the Groundfish Analysis Investigation. Midwater trawls have been deployed at night along transects between Cypress Pt. and Pt. Reyes aboard the NOAA Ship David Starr Jordan in late spring each year. One aspect of this research has been to determine the daily age and growth of juvenile rockfish by counting the increments on their otoliths. It is thought that growth during early life history plays an important role in determining sur- vival and year class strength. The following sum- marizes some results concerning the daily growth and birthdate distributions of those species com- pleted thus far, i.e. shortbelly rockfish (Sebastes jordani), bocaccio (S. paucispinis), yellowtail rock- fish (S. flavidus), and widow rockfish (S. en- tomelas).\nFor comparative purposes, linear regressions were used to describe growth, although in some cases non-linear models such as the Gompertz equation fit the data slightly better. Growth rates have been observed to covary both among species and years. For example, bocaccio grow more\nrapidly than shortbelly rockfish in a given year, whereas 1987 was generally a better year for growth than was 1986. To develop a stand- ardized measure of annual growth conditions, length was estimated at a standard age for each of the four species in each year (Figure 1). The standard age selected for each species depended on the range of ages encountered among years. Note the covariation in length- at-age among the four species. It would appear that environmen- tal conditions affecting growth in any given year are experienced similarly by all the species studied here.\n60.0\nStandardized Length at Age (mm)\nA\n50.0-\n8\n000\n40.0 -\n0\nO\n30.0-\nO-O Shortbelly (75 d)\nYellowtail (107 d)\n4-A Bocaccio (100 d)\nV-V Widow (100 d)\n20.0\n82\n83\n84\n85\n86\n87\n88\n89\nYear\nFigure 1. Standardized length at age data. Num- bers in parentheses indicate age used to deter- mine lengths.\nBirthdate distributions of fish surviving from mid-winter parturition to the time of late spring sampling were estimated by: 1) regressing age on length for each species-year combination, 2) estimating individual ages from lengths of all the fish sampled (not just those aged), 3) calculating the birthdate of each fish by subtracting the estimated age from the Julian date of capture, and 4) aggregating birthdates into a composite frequency distribution. Here only mean birthdates bracketed by the maximum and min- imum birthdates are presented (Figure 2). Al- though not shown, birthdate distributions were generally unimodal when samples were suffi- ciently large, except in 1987 when each species exhibited extended parturition. Like the results concerning length-at-age, the timing of parturi- tion of survivors covaried among species and years.\nThis research is ongoing as additional species are processed and cruises conducted. We are currently studying the relationship between growth and dates of successful parturition with oceanographic conditions in an attempt to\n22\n0\ndetermine the factors contributing to year class strength.\n200\nShortbelly Rockfish\n150\nMaan Jullian Birthdate\nI\n100\n50-\n0.\n-50-\n200\nBocaccio\n150\nMean Julian Birthdate\n100-\n50.\n0\n-50-\n200\nYellowtail Rockfish\n150-\nMean Julian Birthdate\n100\n50\n0-\n-50\n200\nWidow Rockfish\nMean Julian Birthdate\n150-\n100\n50-\n0-\n-504\n1982\n1983\n1984\n1985\n1986\n1987\n1988\n1989\nYear\nFigure 2. Mean birthdate distributions bracketed by ranges.\n(D. Woodbury 556-0565)\nGROUNDFISH COMMUNITIES INVESTIGATIONS\nJuvenile Rockfish Found to Respond Alike to Factors Affecting Growth\nSurvival and mortality rates have been calcu- lated for first-year juvenile blue rockfish, Sebas- tes mystinus, by Fishery Biologists Peter Adams and Dan Howard of the Groundfish Com- munities Investigation. The work is based on data from nearshore underwater census counts on the Mendocino Coast, which are part of the Tiburon Laboratory's rockfish recruitment studies.\nThe rates are based on counts made at three sites from August (when the numbers of recruits in the habitat stabilized) to the following April, each year from 1986 to 1989. When the num- bers are plotted, regressions of the logarithm of the numbers of young-of-the-year (YOY) blue rockfish counted gives estimated daily rates of instantaneous mortality similar to those derived from catch-curve analyses. From these can be calculated monthly (30 days) instantaneous mortality rates, as well as daily and monthly survival rates ( Table 1, Figure 3 ).\nTable 1. Daily survival, monthly (30 days) survival and monthly instantaneous mortality rates for juvenile blue rockfish (Sebastes mystinus) for the period be- tween the months of August to April for three locations by year.\nLocation\nYear\nDaily survival\nMonthly survival\nMonthly mortality\nSeal Cove\n85/86\n0.9977\n0.9354\n0.067\n86/87\n0.9979\n0.9408\n0.061\n87/88\n0.9968\n0.9112\n0.093\n88/89\n0.9941\n0.8423\n0.112\nWhitesboro\n87/88\n0.9955\n0.8774\n0.131\n88/89\n0.9915\n0.7807\n0.247\nHorseshoe Pt.\n88/89\n0.9926\n0.8062\n0.150\nThat the daily and monthly survival and mor- tality rates vary little from year to year and from place to place (Table 1), indicates that annual and spatial influences on year-class strength are minimal during the August to April period.\n23\n140\n20\nSeal Cove\nSeal Cove\n120\n86/87\n15\n100\n80\n10\n60\n85/86\n5\n40\n20\nJun Aug\nOct\nDec Feb\nAp\nJun Aug Oct Dec\nFeb\n500\nSeal Cove\nSeal Cove\n400\n70\n300\n60\n88/99\n50\n200\n40\n30\n100\n0\n87/88\n20\n0\n10\nJun Aug Oct\nDec\nFeb\nApr\nJun\nAug\nOct\nDec\nFeb\n1,000\n350\nWhitesboro Cove\nHorseshoe Pt.\n.\n300\n800\n250\n600\n200\n400\n150\n100\n88/89\n200\n87/88\n50\n.88/89\n0\n0\nJun\nAug\nOct\nDec Feb\nApr\nJun Aug Oct Dec\nFeb\nFigure 3. Mortality estimates for juvenile blue rockfish (Sebastes mystinus) from four locations by year.\nRates of annual (12-month) instantaneous mor- tality projected from these data range from 1.51 to 0.67, which can be compared to the generally accepted adult natural mortality rate of around 0.25.\nPossible sources of error include net migration into the area, which would reduce the mortality estimates, and net migration out of the area, which would increase the mortality estimates. Finer-scale sampling planned for the coming year should refine these estimates. (P. Adams, FTS 556-0568)\nGroundfish Physiological Ecology Investigation to Assess Condition of Juvenile Yellowtail Rockfish\nSince March 1985, the Physiological Ecology Investigation has been studying the reproductive biology of yellowtail rockfish, Sebastes flavidus, from Cordell Bank off Bodega Bay, California. An objective of the study is to identify variables within the female that relate to reproductive success. Ap-\nproximately 300 adult females have been analyzed for body condition, parasite burden, nutritional state, ovarian maturation, oocyte develop- ment, fecundity, etc. Statistical relationships between and among maternal and ovarian variables have been identified; however, the link be- tween these variables and the viability Ap of progeny has not been established. Ideally, evaluation of the physiological condition of recently released larvae would provide the optimum data to establish relationships with maternal factors, but locating and identifying offspring during this early life stage has not been achieved. Consequent- ly, assessing physiological condition of Apr juveniles (approximately 4-5 months post-parturition), a stage that can be collected and identified, has become the alternative. Despite the influences of environmental variables during the first few months at sea, it is reasonable that healthier larvae at the time of release will have a greater probability Apr of survival and better physiological condition at the juvenile stage. Thus- ly, evaluating important environmen- tal variables (e.g., temperature, food abundance) during the free-swimming larvae-to-juvenile progression and as- sessing juvenile condition should provide data upon which to relate maternal variables to reproductive success.\nAs part of the Rockfish Recruitment Assess- ment cruise during May and June, 1989, aboard the NOAA Ship David Starr Jordan in the Gulf of the Farallones and Cordell Bank, the Groundfish Physiological Ecology Investigation will collect juvenile yellowtail rockfish and assess their physiological condition. This will be the initial effort and will become a yearly activity in conjunction with monitoring female reproduc- tive development of the Cordell Bank yellowtail rockfish population.\nDuring this initial study, a range of measure- ments that potentially evaluate physiological condition will be surveyed. Subsequent data analysis should elucidate the significant relation- ships among the various measures of juvenile condition and between maternal values from the\n24\nNumber of Juvenile Rockfish\n0 0 8 8 ₽ 90 80\ncondition and between maternal values from the previous adult reproductive cycle. Those juvenile variables which best describe physiological condi- tion and relate to maternal variables will be retained for future yearly assessments. Initially, we will as- sess morphometrics, gross abnormalities, parasite burdens, mesenteric fat, total lipid concentration and energetic lipid to structural lipid ratios, total protein, RNA/DNA, calorimetry, stomach contents, liver histochemistry, and organ histology. Addition- ally, depth profiles of temperature and salinity, and plankton composition and abundance will be recorded. (B. MacFarlane, FTS 556-0569)\nCondition of Bocaccio, Sebastes paucispinus, Assessed\nStarting in 1985 bocaccio rockfish have been collected concurrently with the yellowtail rockfish as described in previous reports. The objective was to obtain a preliminary sample which might indicate the degree to which adult condition relates to effec- tive fecundity. Because our initial emphasis was placed on yellowtail rockfish, a smaller sample was taken. Three years of collection resulted in a total sample of 140 bocaccio. After initial analyses, data showed that unlike yellowtail rockfish, bocaccio did not significantly decline in body condition with age (mean age=10.8 yrs; range=2-36 yrs; most fish were 8-11 yrs) and there were no significant cor- relations of parasites and disease with body condi- tion factors measured, although as in most fish, higher nematode burdens occurred in older fish. In general, bocaccio appeared healthier than did yel- lowtail rockfish over the time sampled (1985- 1989).\nMean fecundity of females sampled (n=18) was 1,124,227 eggs per female (range=88,133 to 2,690,900 eggs/female). Analyses of fecundity and assessments of viability in additional samples of females will be reported later. (J. Whipple, FTS 556-0569)\nINFORMATION TECHNOLOGY SERVICES\nUpdate of Information Technology 1995 (IT-95) Project\nThe IT-95 Project was initiated to procure a distributed processing computer system to support the complex scientific and data management needs of NOAA Fisheries into the 1990's. The procure-\nment would provide the hardware and software for stand-alone and network processing capabilities at 7 initial sites and 2 additional sites. The 7 initial sites are Seattle, WA; Auke Bay, AL; La Jolla, CA; Honolulu, HI; Miami, FL; Woods Hole, MA; and Silver Spring, MD (Washington, D.C.). The 2 additional sites are tentatively tar- geted for the Pacific Fisheries Environmental Group, Monterey, CA and the Seattle Montlake Laboratory. Though targeted for these two sites, actual placement of these systems would be at the discretion of the Science Directors at the Northwest and Southwest Centers.\nUpon the commitment of 3 million dollars by NMFS towards the procurement of the IT-95 system, the NOAA contracting office announced in the April 28, 1989 issue of the Commerce Business Daily that NOAA will release the Re- quest for Proposals (RFP) to the vendors on or about May 30, 1989. The RFP identifies the mandatory requirements, options, and desired features for hardware, peripherals, and software for the IT-95 procurement. To ensure a full, open, and equal competition, the Government incorporated in this RFP the responses to the vendors who commented or questioned the mandatory requirements in the August 1988 Re- quest for Comments, a preview of the RFP.\nThe RFP states that the vendor must propose a system with sufficient memory, processing capability, and I/O capability to satisfy the re- quirements of the live test demonstration (LTD). The proposed system must be capable of processing the mix of concurrent interactive ter- minal time-sharing and batch jobs within a specified time, as directed in the benchmark package. Systems not passing the benchmark test would be considered nonresponsive.\nThe benchmark package is in the final phase of development by the Benchmark Team, chaired by Bob Riemann (NW). The benchmark team members from the regional sites are Frank Kikuchi (NW), Roger Hewitt (SW), Charlie Krouse (SE), Jim Sargeant (NE), and Dick Schween (HQ/RE1). The benchmark package consists of master tapes of the representative programs and data sets from each of the five sites, an instruction set, and a script for the live demonstration at the site visit. The program tapes contain a mix of COBOL, FORTRAN, and data base language programs for the Burroughs\n25\nand VAX operating systems. The vendors must convert the programs for execution on their proposed system.\nWith the RFP targeted for release on May 30, the benchmark package must be available to the ven- dors by June 10. The charge to the vendors is $300 for the package. Distribution of the package will be controlled by Meredith Beeg, the NOAA Contract- ing Officer. If the benchmark package cannot be completed by June 10, the release of the RFP will be delayed and held for release 10 days prior to a firm completion date of the benchmark package. Based on a May 30 RFP release date, benchmark at the vendors' sites could begin the latter part of August. (D. Roll, FTS 893-7057)\nSTATUS OF PUBLICATIONS\nPublished\nAlcorn, Doris J. and Elizabeth K. Buelna. 1989. The Hawaiian monk seal on Laysan Island, 1983. U.S. Dep. Commer., NOAA Tech. Memo., NOAA-TM- NMFS-SWFC-124, 45 p.\nCole, David A. and Douglas R. McLain. 1989. Interan- nual variability of temperature in the upper layer of the north Pacific eastern boundary region, 1971- 1987. U.S. Dep. Commer., NOAA Tech. Memo., NOAA-TM-NMFS-SWFC-125, 14 p.\nGraham, Jeffrey B., William R. Lowell, N. Chin Lai and R. Michael Laurs. 1989. O2 tension, swimming- velocity, and thermal effects on the metabolic rate of the Pacific albacore Thunnus alalunga. Exp. Biol. 48:89-94.\nThe oxygen consumption rates (VO2) of 9 albacore tuna, Thunnus alalunga (8.5-12 kg) were measured at sea in a swimming respirometer to determine the effects of relative swimming velocity, ambient O2 tension, and water temperature. Significant positive relationships were obtained between tail-beat fre- quency and relative speed and between relative speed and VO2. The albacore metabolic rate was not appreciably affected by exposure to water temperatures ranging from 13.5° to 16.9℃. Brief exposure to hyperoxia (200-400 mm Hg), which was done to reduce the initial stress upon fish in the respirometer, did not affect VO2. Hypoxia (50-99 mm Hg), however, did tend to reduce VO2 and affect swimming velocity.\nHumphreys, Robert L., Jr., Gary A. Winans, and Darryl T. Tagami. 1989. Synonymy and life history of the North Pacific pelagic armorhead, Pseudopentaceros\nwheeleri Hardy (Pisces: Pentacerotidae). Copeia 1989:142-153.\nSpecimens of the nominal species Pseudopen- taceros wheeleri Hardy and P. pectoralis Hardy were examined morphologically and electrophoretically to test the validity of the two species. Samples were collected primarily from the Hancock Seamounts of the southern Emperor-northern Hawaiian Ridge as well as from the North Pacific open ocean and northwestern Hawaiian Islands. Morphometric results indicate continuity between P. wheeleri and P. pectoralis. No evidence of species separa- tion was revealed in analyses of merisitc and electrophoretic data. We conclude that the North Pacific pelagic armorhead consists of a single, metamorphic species, which we, as first revisers, elect to call P. wheeleri. A hypothesis is proposed that attributes morphological variation to different life-history stages.\nOwen, R. W. 1989. Microscale and finescale varia- tions of small plankton in coastal and pelagic environments. J. Mar. Res. 47:197-240.\nSomerton, David A., Bert S. Kikkawa, and Christopher D. Wilson. 1988. Hook timers to measure the capture time of individual fish. Mar. Fish. Rev. 50(2):1-5.\nTo measure capture time of individual fish on a longline, two types of hook timers installed in the leaders and activated by a striking fish were designed and tested: 1) A corrosion timer that measures time indirectly from the mass loss of the anode in a galvanic corrosional reaction and 2) a digital timer that measures time directly by a digi- tal watch module. The digital timer proved to be superior because it is reusable, quicker to deploy and retrieve, and measures time directly with little error.\nApproved, Science and Research Director, SWR\nBakun, Andrew. Mechanisms for density-dependent growth: alternatives to impact on the regional- scale food supply. For publication in The Peruvian Upwelling System: Dynamics and Inter- actions. ICLARM Studies and Reviews 18. In- stituto del Mar del Peru (IMARPE), Callao, Peru.\nForsyth, Robert G., and George H. Balazs. [Green turtle, Chelonia mydas] Species profile: Life his- tory and environmental requirements of the green turtle, Chelonia mydas, in the Pacific Ocean Region. U.S. Army Corps of Engineers, Vick- sburg, MS 39180-0631.\nGerrodette, Tim, Barry K. Choy, and Lisa M. Hiruki. An experimental study of derelict gill-net frag-\n26\nments in the central Pacific Ocean. Proceedings of the Second International Conference on Marine Debris, 2-7 April 1989, Honolulu, HI.\nHuppert, Daniel D. and Roger D. Fight. Economic con- siderations in managing salmonid fish habitat. For publication in Salmonid habitat in forest and range lands: principles and effects of management. American Fisheries Society.\nLynn, Ronald J. and James J. Simpson. The influence of bathymetry upon the flow of the undercurrent off southern California. For consideration for publica- tion in the Journal of Geophysical Research.\nPerrin, William F. Steno attenuatus Gray, 1846 (Mam- malia, Cetacea): proposed conservation by suppres- sion of Delphinus velox G. Cuvier, 1829, D. psuedodelphis Wiegmann, 1840 (or earlier) and D. brevimanus Wagner, 1846. For consideration for publication in the Bulletin of Zoological Nomencla- ture.\nPolovina, Jeffrey J. Artificial reefs: nothing more than benthic fish aggregators. For consideration for pub- lication in California Cooperative Oceanic Fisheries Investigation Reports.\nSimpson, James J. and Ronald J. Lynn. A mesoscale eddy dipole in the offshore California Current. For consideration for publication in the Journal of Geophysical Research.\nAdministrative Reports\nBarlow, Jay. 1989. Estimating sample size required to monitor marine mammal mortality in Califor- nia gill-net fisheries. SWFC Admin. Rep., La Jolla, LJ-89-08, 8 p.\nClarke, Raymond P. 1989. Annual report of the 1988 western Pacific lobster fishery. SWFC Admin. Rep., Honolulu, H-89-5, 28 p.\nHolland, Robert. 1989. A personal computer based system for analog-to-digital and serial com- munication data acquisition. SWFC Admin. Rep., La Jolla, LJ-89-09, 24 p.\nHolts, David B. and Dennis Bedford. 1989. Report of the Assessment Methods Workshop for Sharks. SWFC Admin. Rep., La Jolla, LJ-89-11, 21 p.\nKasaoka, Laurel D. 1989. Summary of small boat economic surveys from American Samoa, Guam, and the Northern Mariana Islands. SWFC Admin. Rep., Honolulu, H-89-4C, 47 p.\nLo, Nancy C. H. 1989. Estimation of the port sam- pling of the wetfish fishery. SWFC Admin. Rep., La Jolla, LJ-89-10, 28 p.\nPerrin, Christina C. and Anthony P. Majors. 1989. U.S. Pacific albacore fishery data base descrip- tion. SWFC Admin. Rep., La Jolla, LJ-89-07, 34 p.\n27\nUNITED STATES DEPARTMENT OF COMMERCE\nNATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL MARINE FISHERIES SERVICE SOUTHWEST FISHERIES CENTER 8604 LA JOLLA SHORES DRIVE P.O. BOX 271 LA JOLLA, CALIFORNIA 92038 OFFICIAL BUSINESS PENALTY FOR PRIVATE USE, $300\nAN EQUAL OPPORTUNITY EMPLOYER\nPOSTAGE AND FEES PAID DEPARTMENT OF COMMERCE 210\nU.S.MAIL\n®\nTHIRD CLASS",
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                        7.658,
                        1.3564,
                        7.6771
                    ],
                    "spans": [
                        {
                            "offset": 6351,
                            "length": 38
                        }
                    ]
                },
                {
                    "content": "coauthor Dr. James Simpson of Scripps Institution",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 6390,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "of Oceanography have completed final editing on",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 6440,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "two manuscripts dealing with the oceanography of",
                    "polygon": [
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                        4.2077,
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                    "spans": [
                        {
                            "offset": 6488,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "the California Current System off southern Califor-",
                    "polygon": [
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                        {
                            "offset": 6537,
                            "length": 51
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                    ]
                },
                {
                    "content": "nia. The papers are to be published in the Journal",
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                    "spans": [
                        {
                            "offset": 6589,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "of Geophysical Research. The manuscript, with",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 6640,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Lynn as senior author, \"The influence of",
                    "polygon": [
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                        4.222,
                        8.7513,
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                    "spans": [
                        {
                            "offset": 6686,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "bathymetry upon the flow of the undercurrent off",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 6727,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "southern California,\" was described in the Septem-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 6776,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "ber-October 1988 Report of Activities. The other",
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                        1.1988,
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                        4.2125,
                        9.2287,
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                        {
                            "offset": 6827,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "manuscript, with Simpson as senior author, \"A",
                    "polygon": [
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                        4.222,
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                    "spans": [
                        {
                            "offset": 6876,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "mesoscale eddy dipole on the offshore California",
                    "polygon": [
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                        {
                            "offset": 6922,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "Current,\" reports on satellite and shipboard obser-",
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                        {
                            "offset": 6971,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "vations taken aboard the David Starr Jordan in July",
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                    "spans": [
                        {
                            "offset": 7023,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "1985.",
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                        {
                            "offset": 7075,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "This most recent report describes the dis-",
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                    "spans": [
                        {
                            "offset": 7081,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "covery in 1985 of two opposing eddies or gyres",
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                    "spans": [
                        {
                            "offset": 7124,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "about 250 miles (400 km) southwest of Point",
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                        {
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                    ]
                },
                {
                    "content": "Conception. These eddies extended deep into",
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                    "spans": [
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                            "offset": 7215,
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                        }
                    ]
                },
                {
                    "content": "the water column, entraining the California Un-",
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                            "offset": 7259,
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                    ]
                },
                {
                    "content": "dercurrent waters at depth and the California",
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                    "spans": [
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                            "offset": 7307,
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                        }
                    ]
                },
                {
                    "content": "Current waters near the surface. There is",
                    "polygon": [
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                    "spans": [
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                            "offset": 7353,
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                        }
                    ]
                },
                {
                    "content": "evidence that the pair of eddies, called an eddy",
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                            "offset": 7395,
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                    ]
                },
                {
                    "content": "dipole, influenced offshore biological produc-",
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                            "offset": 7444,
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                    ]
                },
                {
                    "content": "tivity and general circulation patterns off of the",
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                    "spans": [
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                            "offset": 7491,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "Southern California Bight during the time of",
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                            "offset": 7542,
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                        }
                    ]
                },
                {
                    "content": "observation in July 1985.",
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                    "spans": [
                        {
                            "offset": 7587,
                            "length": 25
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                    ]
                },
                {
                    "content": "There is a transition zone in the California",
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                            "offset": 7613,
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                    ]
                },
                {
                    "content": "Current System between inshore coastal and",
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                    "spans": [
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                            "offset": 7658,
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                    ]
                },
                {
                    "content": "offshore oceanic flow. This transition zone is",
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                    ]
                },
                {
                    "content": "associated with the main core of the California",
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                    ]
                },
                {
                    "content": "Current and is populated with offshore mesos-",
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                    "spans": [
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                            "offset": 7796,
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                    ]
                },
                {
                    "content": "cale eddies. The observation of a mesoscale",
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                    "spans": [
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                            "offset": 7842,
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                    ]
                },
                {
                    "content": "eddy dipole, 400 km southwest of Point Concep-",
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                    "spans": [
                        {
                            "offset": 7886,
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                        }
                    ]
                },
                {
                    "content": "tion, in satellite imagery was confirmed by the",
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                    "spans": [
                        {
                            "offset": 7933,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "shipboard data (Figures 1 and 2). Water mass",
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                    "spans": [
                        {
                            "offset": 7981,
                            "length": 44
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                    ]
                },
                {
                    "content": "analysis showed that the anticyclonic member",
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                    "spans": [
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                            "offset": 8026,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "35",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 8071,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "DYNAMIC HEIGHT (dyn m)",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 8074,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "1.32",
                    "polygon": [
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                        5.7456,
                        4.9939,
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                    ],
                    "spans": [
                        {
                            "offset": 8097,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "0/1000 dbar",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 8102,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "1.30",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 8114,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "July 1985",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 8119,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "34º",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 8129,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1.28",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 8133,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": ".26",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 8138,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "33°",
                    "polygon": [
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                    "spans": [
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                            "offset": 8142,
                            "length": 3
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                    ]
                },
                {
                    "content": "1.44",
                    "polygon": [
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                    "spans": [
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                            "offset": 8146,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1.48",
                    "polygon": [
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                            "offset": 8151,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1.36",
                    "polygon": [
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                            "offset": 8156,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1,42-",
                    "polygon": [
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                    ],
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                        {
                            "offset": 8161,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "1.42",
                    "polygon": [
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                            "offset": 8167,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1.32",
                    "polygon": [
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                            "offset": 8172,
                            "length": 4
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                    ]
                },
                {
                    "content": "1.44",
                    "polygon": [
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                    "spans": [
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                            "offset": 8177,
                            "length": 4
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                    ]
                },
                {
                    "content": "32º",
                    "polygon": [
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                    ],
                    "spans": [
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                            "offset": 8182,
                            "length": 3
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                    ]
                },
                {
                    "content": "1.34",
                    "polygon": [
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                            "offset": 8186,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1.42",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 8191,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "31º",
                    "polygon": [
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                    "spans": [
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                            "offset": 8196,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1.44",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 8200,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "124°",
                    "polygon": [
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                            "length": 4
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                    ]
                },
                {
                    "content": "123º",
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                {
                    "content": "122ª",
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                {
                    "content": "121º",
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                {
                    "content": "120°",
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                {
                    "content": "119",
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                            "offset": 8230,
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                {
                    "content": "118º",
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                    "content": "117",
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                    "content": "116",
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                    "content": "Figure 1. Dynamic height of the sea surface",
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                    ]
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                {
                    "content": "reveals the eddy dipole system in the pattern of",
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                {
                    "content": "surface flow.",
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                {
                    "content": "35",
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                {
                    "content": "DYNAMIC HEIGHT (dyn m)",
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                {
                    "content": "250/1000 dbar",
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                {
                    "content": "80.",
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                {
                    "content": "July 1985",
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                {
                    "content": "34°",
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                    ]
                },
                {
                    "content": "77.)",
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                    ]
                },
                {
                    "content": "OPP 83.",
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                    ]
                },
                {
                    "content": ".79",
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                {
                    "content": ".84.",
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                    ]
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                {
                    "content": "33",
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                {
                    "content": "70",
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                {
                    "content": "-",
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                {
                    "content": ".. 80",
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                    "content": "1.80",
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                {
                    "content": "32",
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                    "content": ".80",
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                {
                    "content": ". . 77",
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                {
                    "content": "79.",
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                    "content": "124°",
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                    "content": "123°",
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                    "content": "122°",
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                {
                    "content": "121°",
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                {
                    "content": "120°",
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                    ]
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                {
                    "content": "119º",
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                {
                    "content": "118",
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                {
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                {
                    "content": "116°",
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                    "content": "Figure 2. Dynamic height at 250 m reveals the",
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                    "content": "California Undercurrent, the dipole system and",
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                    "content": "a complex pattern connecting the dipole to the",
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                    "content": "undercurrent.",
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                        }
                    ]
                },
                {
                    "content": "California Current. The authors conclude that the",
                    "polygon": [
                        1.0387,
                        2.4793,
                        4.0542,
                        2.4985,
                        4.0542,
                        2.6469,
                        1.0387,
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                    "spans": [
                        {
                            "offset": 9183,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "dipole was likely caused by a bathymetrically-in-",
                    "polygon": [
                        1.0291,
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                        4.0446,
                        2.6516,
                        4.0446,
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                    ],
                    "spans": [
                        {
                            "offset": 9233,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "duced baroclinic instability of the California Under-",
                    "polygon": [
                        1.0339,
                        2.8,
                        4.0398,
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                        4.0398,
                        2.958,
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                    "spans": [
                        {
                            "offset": 9283,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "current near the Santa Rosa-Cortes Ridge during a",
                    "polygon": [
                        1.0291,
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                        4.0446,
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                    ],
                    "spans": [
                        {
                            "offset": 9337,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "period of seasonal increase in current strength.",
                    "polygon": [
                        1.0195,
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                        3.8149,
                        3.1303,
                        3.8149,
                        3.2787,
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                    "spans": [
                        {
                            "offset": 9387,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "35°",
                    "polygon": [
                        1.0722,
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                        1.2014,
                        3.4653,
                        1.1966,
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                    "spans": [
                        {
                            "offset": 9436,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "OXYGEN ANOMALY x 10 ml/l",
                    "polygon": [
                        2.7618,
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                        3.9393,
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                        3.9393,
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                    "spans": [
                        {
                            "offset": 9440,
                            "length": 24
                        }
                    ]
                },
                {
                    "content": "04:26.4-26.6",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 9465,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "33",
                    "polygon": [
                        1.0626,
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                        4.2694,
                        1.1727,
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                        1.0626,
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                    ],
                    "spans": [
                        {
                            "offset": 9478,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "-2",
                    "polygon": [
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                        4.2742,
                        1.3833,
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                        1.2876,
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                    ],
                    "spans": [
                        {
                            "offset": 9481,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "14",
                    "polygon": [
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                        4.4657,
                        3.4511,
                        4.5423,
                        3.3649,
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                    "spans": [
                        {
                            "offset": 9484,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "-6",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 9487,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "32°",
                    "polygon": [
                        1.0626,
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                        1.1823,
                        4.6667,
                        1.1871,
                        4.7337,
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                    "spans": [
                        {
                            "offset": 9490,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "-2",
                    "polygon": [
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                        4.8294,
                        1.9912,
                        4.8438,
                        1.9864,
                        4.906,
                        1.9098,
                        4.8917
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                    "spans": [
                        {
                            "offset": 9494,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "31°",
                    "polygon": [
                        1.0722,
                        5.0592,
                        1.1727,
                        5.0592,
                        1.1727,
                        5.1358,
                        1.0722,
                        5.1358
                    ],
                    "spans": [
                        {
                            "offset": 9497,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "124°",
                    "polygon": [
                        1.1918,
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                        1.3498,
                        5.3129,
                        1.3498,
                        5.3847,
                        1.1918,
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                    "spans": [
                        {
                            "offset": 9501,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "123°",
                    "polygon": [
                        1.5317,
                        5.3129,
                        1.6801,
                        5.3129,
                        1.6801,
                        5.3847,
                        1.5317,
                        5.3894
                    ],
                    "spans": [
                        {
                            "offset": 9506,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "122°",
                    "polygon": [
                        1.8715,
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                        2.0151,
                        5.3176,
                        2.0151,
                        5.3894,
                        1.8715,
                        5.3894
                    ],
                    "spans": [
                        {
                            "offset": 9511,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "121ª",
                    "polygon": [
                        2.2209,
                        5.3176,
                        2.331,
                        5.3224,
                        2.331,
                        5.399,
                        2.2209,
                        5.399
                    ],
                    "spans": [
                        {
                            "offset": 9516,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "120°",
                    "polygon": [
                        2.5512,
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                        2.69,
                        5.3224,
                        2.69,
                        5.3894,
                        2.5464,
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                    ],
                    "spans": [
                        {
                            "offset": 9521,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "119",
                    "polygon": [
                        2.8623,
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                        3.0011,
                        5.3176,
                        3.0011,
                        5.3894,
                        2.8623,
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                    ],
                    "spans": [
                        {
                            "offset": 9526,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "118°",
                    "polygon": [
                        3.207,
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                        3.3458,
                        5.3272,
                        3.341,
                        5.3894,
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                    "spans": [
                        {
                            "offset": 9530,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "117°",
                    "polygon": [
                        3.5325,
                        5.3272,
                        3.6713,
                        5.3224,
                        3.676,
                        5.3942,
                        3.5325,
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                    "spans": [
                        {
                            "offset": 9535,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "116",
                    "polygon": [
                        3.8819,
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                        3.9967,
                        5.3272,
                        3.9967,
                        5.399,
                        3.8771,
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                    ],
                    "spans": [
                        {
                            "offset": 9540,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Figure 3. The distribution of oxygen deficit in a",
                    "polygon": [
                        1.1727,
                        5.5953,
                        3.8819,
                        5.6096,
                        3.8819,
                        5.7484,
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                    "spans": [
                        {
                            "offset": 9544,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "density range found near 200 m corresponds close-",
                    "polygon": [
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                        3.8771,
                        5.7532,
                        3.8771,
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                    "spans": [
                        {
                            "offset": 9594,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "ly to the 250 m circulation pattern and shows water",
                    "polygon": [
                        1.1775,
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                        5.9016,
                        3.8723,
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                    "spans": [
                        {
                            "offset": 9644,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "characteristics typical of the coastal undercurrent in",
                    "polygon": [
                        1.1727,
                        6.0356,
                        3.8723,
                        6.0452,
                        3.8723,
                        6.1744,
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                    "spans": [
                        {
                            "offset": 9696,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "the dipole.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 9751,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "In the companion manuscript by Lynn and",
                    "polygon": [
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                        6.4185,
                        4.0255,
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                    "spans": [
                        {
                            "offset": 9763,
                            "length": 39
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                    ]
                },
                {
                    "content": "Simpson, analysis of the long term CalCOFI data",
                    "polygon": [
                        1.0052,
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                        4.0255,
                        6.5765,
                        4.0255,
                        6.7296,
                        1.0052,
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                    ],
                    "spans": [
                        {
                            "offset": 9803,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "implies that the instability of the undercurrent and",
                    "polygon": [
                        1.0052,
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                        4.0303,
                        6.7344,
                        4.0303,
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                    "spans": [
                        {
                            "offset": 9851,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "subsequent eddy formation are typical of this loca-",
                    "polygon": [
                        1.01,
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                        4.0207,
                        6.9019,
                        4.0207,
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                        1.01,
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                    "spans": [
                        {
                            "offset": 9904,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "tion at this time of year. (R. Lynn, FTS 893-7084)",
                    "polygon": [
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                        7.0599,
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                    "spans": [
                        {
                            "offset": 9956,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "SURVEY SYSTEMS DEVELOPMENT",
                    "polygon": [
                        1.0052,
                        7.4284,
                        3.8436,
                        7.4428,
                        3.8436,
                        7.6103,
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                    "spans": [
                        {
                            "offset": 10007,
                            "length": 26
                        }
                    ]
                },
                {
                    "content": "AND EVALUATION",
                    "polygon": [
                        1.0004,
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                        2.489,
                        7.6295,
                        2.489,
                        7.7922,
                        1.0004,
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                    ],
                    "spans": [
                        {
                            "offset": 10034,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Egg and Larva Production of Northern",
                    "polygon": [
                        1.0052,
                        7.9549,
                        3.6378,
                        7.9693,
                        3.6378,
                        8.1129,
                        1.0052,
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                    "spans": [
                        {
                            "offset": 10049,
                            "length": 36
                        }
                    ]
                },
                {
                    "content": "Anchovy in 1989",
                    "polygon": [
                        1.0004,
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                        8.0985,
                        2.1779,
                        8.2469,
                        1.0004,
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                    "spans": [
                        {
                            "offset": 10086,
                            "length": 15
                        }
                    ]
                },
                {
                    "content": "The egg and larva samples collected during the",
                    "polygon": [
                        1.1631,
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                        4.0207,
                        8.3809,
                        4.0159,
                        8.5341,
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                    "spans": [
                        {
                            "offset": 10102,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "8901 cruise (January 19-February 4) have been",
                    "polygon": [
                        1.0004,
                        8.5245,
                        4.0207,
                        8.5437,
                        4.0159,
                        8.6968,
                        1.0004,
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                    "spans": [
                        {
                            "offset": 10149,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "sorted, staged, aged, and analyzed to provide es-",
                    "polygon": [
                        0.9908,
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                        4.0111,
                        8.7016,
                        4.0111,
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                    "spans": [
                        {
                            "offset": 10195,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "timates of daily egg production. The estimate of the",
                    "polygon": [
                        0.9908,
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                        4.0111,
                        8.8643,
                        4.0111,
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                    "spans": [
                        {
                            "offset": 10245,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "1989 daily egg production is one of the major",
                    "polygon": [
                        1.0052,
                        9.0175,
                        4.0159,
                        9.0319,
                        4.0111,
                        9.1802,
                        1.0052,
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                    "spans": [
                        {
                            "offset": 10298,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "inputs to the spawning biomass of northern",
                    "polygon": [
                        0.9908,
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                        4.0159,
                        9.1898,
                        4.0159,
                        9.3382,
                        0.9908,
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                    "spans": [
                        {
                            "offset": 10344,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "anchovy.",
                    "polygon": [
                        0.9908,
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                        1.5508,
                        9.3478,
                        1.5508,
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                        0.9908,
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                    ],
                    "spans": [
                        {
                            "offset": 10387,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "The survey area includes CalCOFI lines 77.0 (Pt",
                    "polygon": [
                        1.1536,
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                        4.0207,
                        9.6732,
                        4.0207,
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                    "spans": [
                        {
                            "offset": 10396,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "Buchon, CA) to 93.0 (Del Mar, CA). Forty-three",
                    "polygon": [
                        0.9908,
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                        9.836,
                        4.0207,
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                    "spans": [
                        {
                            "offset": 10444,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "CalVET tows were taken out to station 70.0, and",
                    "polygon": [
                        4.3797,
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                        0.9668,
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                    ],
                    "spans": [
                        {
                            "offset": 10491,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "57 Bongo tows were taken up to station 120.0",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10539,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "(Figure 4). Egg samples from CalVET tows and",
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                        4.3797,
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                        7.242,
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                    "spans": [
                        {
                            "offset": 10584,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "larvae from Bongo tows were used to estimate",
                    "polygon": [
                        4.3701,
                        1.4215,
                        7.2324,
                        1.4455,
                        7.2324,
                        1.5891,
                        4.3701,
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                    ],
                    "spans": [
                        {
                            "offset": 10629,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "egg and larva production and mortality (Lo",
                    "polygon": [
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                        7.2276,
                        1.6034,
                        7.2276,
                        1.7566,
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                    ],
                    "spans": [
                        {
                            "offset": 10674,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "1986, Fish. Bull., U.S. 84(2)).",
                    "polygon": [
                        4.3749,
                        1.747,
                        6.1603,
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                        6.1555,
                        1.9098,
                        4.3749,
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                    ],
                    "spans": [
                        {
                            "offset": 10717,
                            "length": 31
                        }
                    ]
                },
                {
                    "content": "35.",
                    "polygon": [
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                        2.1969,
                        4.4658,
                        2.1969,
                        4.4706,
                        2.2496,
                        4.3797,
                        2.2496
                    ],
                    "spans": [
                        {
                            "offset": 10749,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "CALCOFI SURVEY PATTERN",
                    "polygon": [
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                        2.1682,
                        7.041,
                        2.2448,
                        6.2081,
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                    "spans": [
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                            "offset": 10753,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "35.",
                    "polygon": [
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                        2.2065,
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                    ],
                    "spans": [
                        {
                            "offset": 10776,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "POINT",
                    "polygon": [
                        5.8922,
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                        2.2352,
                        6.0597,
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                    ],
                    "spans": [
                        {
                            "offset": 10780,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "CONCEPTION",
                    "polygon": [
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                    "spans": [
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                            "offset": 10786,
                            "length": 10
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                    ]
                },
                {
                    "content": "70",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10797,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "-55",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10800,
                            "length": 3
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                    ]
                },
                {
                    "content": "40",
                    "polygon": [
                        6.0645,
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                        2.465,
                        6.1315,
                        2.4937,
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                        2.4937
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                    "spans": [
                        {
                            "offset": 10804,
                            "length": 2
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                    ]
                },
                {
                    "content": "80",
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                        {
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                            "length": 2
                        }
                    ]
                },
                {
                    "content": "82.47.70",
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                        }
                    ]
                },
                {
                    "content": "-34,.33(10m)",
                    "polygon": [
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                    ]
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                {
                    "content": ".90",
                    "polygon": [
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                        }
                    ]
                },
                {
                    "content": "77,100",
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                    "spans": [
                        {
                            "offset": 10836,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": ".28.1,28.0",
                    "polygon": [
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                            "offset": 10843,
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                    ]
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                {
                    "content": ".90",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10854,
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                        }
                    ]
                },
                {
                    "content": ".370 35",
                    "polygon": [
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                    ]
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                {
                    "content": "26.7(10m), 26.4",
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                        }
                    ]
                },
                {
                    "content": "80.100",
                    "polygon": [
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                },
                {
                    "content": ".90",
                    "polygon": [
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                            "offset": 10889,
                            "length": 3
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                {
                    "content": "100",
                    "polygon": [
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                    "spans": [
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                            "length": 3
                        }
                    ]
                },
                {
                    "content": "83.110",
                    "polygon": [
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                    "spans": [
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                            "offset": 10897,
                            "length": 6
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                    ]
                },
                {
                    "content": ".90",
                    "polygon": [
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                            "length": 3
                        }
                    ]
                },
                {
                    "content": ".100",
                    "polygon": [
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                    "spans": [
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                            "offset": 10908,
                            "length": 4
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                    ]
                },
                {
                    "content": "-90",
                    "polygon": [
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                            "offset": 10913,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "20.",
                    "polygon": [
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                            "length": 3
                        }
                    ]
                },
                {
                    "content": "87.110",
                    "polygon": [
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                    "spans": [
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                            "offset": 10921,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": ".100",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10928,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": ".110",
                    "polygon": [
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                            "offset": 10933,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "90.120",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10938,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": ".110",
                    "polygon": [
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                    "spans": [
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                            "offset": 10945,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "30",
                    "polygon": [
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                    "spans": [
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                            "offset": 10950,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "30*",
                    "polygon": [
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                    "spans": [
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                            "offset": 10953,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "93.120",
                    "polygon": [
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                            "length": 6
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                    ]
                },
                {
                    "content": "1",
                    "polygon": [
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                            "offset": 10964,
                            "length": 1
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                    ]
                },
                {
                    "content": "125*",
                    "polygon": [
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                    ]
                },
                {
                    "content": "120*",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 10971,
                            "length": 4
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                    ]
                },
                {
                    "content": "Figure 4. CalCOFI survey pattern.",
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                    "spans": [
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                            "offset": 10976,
                            "length": 33
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                    ]
                },
                {
                    "content": "The preliminary estimates of daily egg",
                    "polygon": [
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                    "spans": [
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                            "offset": 11010,
                            "length": 38
                        }
                    ]
                },
                {
                    "content": "production and daily egg instantaneous mor-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 11049,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "tality rate are 2.01/0.05 m2 (SE=0.61) and 0.58",
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                    ],
                    "spans": [
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                            "offset": 11093,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "(SE=0.062). The larva production at hatching",
                    "polygon": [
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                        5.198,
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                    "spans": [
                        {
                            "offset": 11141,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "is 0.142/0.05 m2 (0.014). Both egg and larva",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 11186,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "production were lower than previous years",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 11231,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "(Table 1). The average temperature of tows",
                    "polygon": [
                        4.3414,
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                        7.2085,
                        5.7006,
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                        5.8537,
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                    ],
                    "spans": [
                        {
                            "offset": 11273,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "where eggs were present was 13.17℃ compared",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 11316,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "to 13.30°C in 1988. With such a low tempera-",
                    "polygon": [
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                        6.0308,
                        7.1941,
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                    ],
                    "spans": [
                        {
                            "offset": 11360,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "ture, we expect that only 5% of one-year-olds",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 11405,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "will be mature, and the estimated spawning",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 11451,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "biomass will be below the 1 million metric ton",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 11494,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "estimate of 1988.",
                    "polygon": [
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                        6.677,
                        5.3848,
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                    ],
                    "spans": [
                        {
                            "offset": 11541,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "Table 1. Anchovy daily egg production",
                    "polygon": [
                        4.4993,
                        7.036,
                        7.0314,
                        7.0599,
                        7.0266,
                        7.213,
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                    ],
                    "spans": [
                        {
                            "offset": 11559,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "per 0.05 m2 (Po), daily egg mortality,",
                    "polygon": [
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                        7.1939,
                        7.0027,
                        7.2178,
                        7.0027,
                        7.3949,
                        4.4945,
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                    ],
                    "spans": [
                        {
                            "offset": 11597,
                            "length": 38
                        }
                    ]
                },
                {
                    "content": "larva production at hatching per 0.05 m2,",
                    "polygon": [
                        4.4898,
                        7.3806,
                        7.017,
                        7.3901,
                        7.017,
                        7.5481,
                        4.485,
                        7.5337
                    ],
                    "spans": [
                        {
                            "offset": 11636,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "and average temperature in January-",
                    "polygon": [
                        4.5041,
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                        7.0218,
                        7.5625,
                        7.0218,
                        7.7156,
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                    ],
                    "spans": [
                        {
                            "offset": 11678,
                            "length": 35
                        }
                    ]
                },
                {
                    "content": "February 1985-1988. Standard error in",
                    "polygon": [
                        4.4945,
                        7.7156,
                        7.0314,
                        7.7204,
                        7.0314,
                        7.8736,
                        4.4945,
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                    "spans": [
                        {
                            "offset": 11714,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "parenthesis.",
                    "polygon": [
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                        5.2604,
                        7.8879,
                        5.2604,
                        8.0267,
                        4.4945,
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                    "spans": [
                        {
                            "offset": 11752,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "Year",
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                    ],
                    "spans": [
                        {
                            "offset": 11765,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
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                        8.2421,
                        5.2939,
                        8.3091,
                        5.0785,
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                    "spans": [
                        {
                            "offset": 11770,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
                        5.5476,
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                        5.7534,
                        8.2421,
                        5.7534,
                        8.3139,
                        5.5476,
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                    "spans": [
                        {
                            "offset": 11775,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 11780,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1988",
                    "polygon": [
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                        6.682,
                        8.2565,
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                    "spans": [
                        {
                            "offset": 11785,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1989",
                    "polygon": [
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                        8.2565,
                        7.1415,
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                    "spans": [
                        {
                            "offset": 11790,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "Egg",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 11795,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "5.16",
                    "polygon": [
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                        8.5054,
                        5.2891,
                        8.5054,
                        5.2891,
                        8.5676,
                        5.0833,
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                    "spans": [
                        {
                            "offset": 11799,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "7.55",
                    "polygon": [
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                        5.7438,
                        8.5772,
                        5.538,
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                    "spans": [
                        {
                            "offset": 11804,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "7.23",
                    "polygon": [
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                            "offset": 11809,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "6.89",
                    "polygon": [
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                            "offset": 11814,
                            "length": 4
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                    ]
                },
                {
                    "content": "2.01",
                    "polygon": [
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                            "length": 4
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                    ]
                },
                {
                    "content": "Production",
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                    ],
                    "confidence": 0.998,
                    "span": {
                        "offset": 15391,
                        "length": 2
                    }
                },
                {
                    "content": "towed",
                    "polygon": [
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                    "confidence": 0.998,
                    "span": {
                        "offset": 15394,
                        "length": 5
                    }
                },
                {
                    "content": "faster.",
                    "polygon": [
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                    "confidence": 0.995,
                    "span": {
                        "offset": 15400,
                        "length": 7
                    }
                },
                {
                    "content": "The",
                    "polygon": [
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                    "confidence": 0.999,
                    "span": {
                        "offset": 15408,
                        "length": 3
                    }
                },
                {
                    "content": "faster",
                    "polygon": [
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                    ],
                    "confidence": 0.997,
                    "span": {
                        "offset": 15412,
                        "length": 6
                    }
                },
                {
                    "content": "tow",
                    "polygon": [
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                        6.2051,
                        9.8171,
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                        9.9603,
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                    ],
                    "confidence": 0.992,
                    "span": {
                        "offset": 15419,
                        "length": 3
                    }
                },
                {
                    "content": "makes",
                    "polygon": [
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                    "confidence": 0.996,
                    "span": {
                        "offset": 15423,
                        "length": 5
                    }
                },
                {
                    "content": "precise",
                    "polygon": [
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                    ],
                    "confidence": 0.998,
                    "span": {
                        "offset": 15429,
                        "length": 7
                    }
                },
                {
                    "content": "con-",
                    "polygon": [
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                        7.3694,
                        9.818,
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                    ],
                    "confidence": 0.989,
                    "span": {
                        "offset": 15437,
                        "length": 4
                    }
                },
                {
                    "content": "4",
                    "polygon": [
                        4.1743,
                        10.4271,
                        4.2548,
                        10.4271,
                        4.2514,
                        10.5367,
                        4.1743,
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                    ],
                    "confidence": 0.997,
                    "span": {
                        "offset": 15442,
                        "length": 1
                    }
                }
            ],
            "lines": [
                {
                    "content": "SURVEY SYSTEMS DEVELOPMENT",
                    "polygon": [
                        1.1319,
                        0.9883,
                        3.9641,
                        0.9835,
                        3.9641,
                        1.1506,
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                    ],
                    "spans": [
                        {
                            "offset": 12165,
                            "length": 26
                        }
                    ]
                },
                {
                    "content": "AND EVALUATION",
                    "polygon": [
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                        1.1936,
                        2.6173,
                        1.3416,
                        1.1367,
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                    ],
                    "spans": [
                        {
                            "offset": 12192,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Quantitative Deep Oblique Tows",
                    "polygon": [
                        1.1463,
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                    ],
                    "spans": [
                        {
                            "offset": 12207,
                            "length": 30
                        }
                    ]
                },
                {
                    "content": "Implemented",
                    "polygon": [
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                        1.1319,
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                    ],
                    "spans": [
                        {
                            "offset": 12238,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "Fishery Biologist Paul Smith reports that the",
                    "polygon": [
                        1.2991,
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                        4.1552,
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                        4.1552,
                        2.0577,
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                    ],
                    "spans": [
                        {
                            "offset": 12250,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "quantitative deep oblique tow has been imple-",
                    "polygon": [
                        1.1319,
                        2.0864,
                        4.1456,
                        2.072,
                        4.1456,
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                    ],
                    "spans": [
                        {
                            "offset": 12296,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "mented by Bill Flerx, Fishery Biologist, for the third",
                    "polygon": [
                        1.1319,
                        2.2439,
                        4.1456,
                        2.2391,
                        4.1456,
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                    ],
                    "spans": [
                        {
                            "offset": 12342,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "year. The tow is intended to encompass the entire",
                    "polygon": [
                        1.1367,
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                        2.411,
                        4.1552,
                        2.559,
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                    ],
                    "spans": [
                        {
                            "offset": 12397,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "vertical range of sablefish and Dover sole eggs for",
                    "polygon": [
                        1.1415,
                        2.5829,
                        4.1552,
                        2.5734,
                        4.1599,
                        2.7214,
                        1.1415,
                        2.7357
                    ],
                    "spans": [
                        {
                            "offset": 12447,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "the purpose of estimating egg production rates.",
                    "polygon": [
                        1.1415,
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                        2.7452,
                        4.1504,
                        2.8932,
                        1.1415,
                        2.9028
                    ],
                    "spans": [
                        {
                            "offset": 12499,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "Mature Dover sole and sablefish inhabit the ocean",
                    "polygon": [
                        1.1415,
                        2.9123,
                        4.1647,
                        2.9076,
                        4.1647,
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                        3.0651
                    ],
                    "spans": [
                        {
                            "offset": 12547,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "floor at depths of 200 to 1000 fathoms (400-1800",
                    "polygon": [
                        1.1463,
                        3.0794,
                        4.1552,
                        3.0699,
                        4.1599,
                        3.2179,
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                    ],
                    "spans": [
                        {
                            "offset": 12597,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "meters) and all sablefish and some Dover sole in-",
                    "polygon": [
                        1.151,
                        3.2465,
                        4.1504,
                        3.2418,
                        4.1504,
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                    ],
                    "spans": [
                        {
                            "offset": 12646,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "habit the surface layer as part of their early life",
                    "polygon": [
                        1.151,
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                        4.1599,
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                    ],
                    "spans": [
                        {
                            "offset": 12696,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "history. This requires the use of an oblique tow",
                    "polygon": [
                        1.151,
                        3.576,
                        4.1599,
                        3.5712,
                        4.1599,
                        3.7192,
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                        3.7287
                    ],
                    "spans": [
                        {
                            "offset": 12748,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "which encompasses the entire water column. The",
                    "polygon": [
                        1.1558,
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                        4.1647,
                        3.7335,
                        4.1647,
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                    ],
                    "spans": [
                        {
                            "offset": 12797,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "standard CalCOFI tow encompassed only the",
                    "polygon": [
                        1.151,
                        3.9054,
                        4.1647,
                        3.9006,
                        4.1647,
                        4.0486,
                        1.151,
                        4.0534
                    ],
                    "spans": [
                        {
                            "offset": 12844,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "upper 70 meters for the first years of sampling. It",
                    "polygon": [
                        1.151,
                        4.0773,
                        4.1647,
                        4.0677,
                        4.1695,
                        4.2109,
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                        4.23
                    ],
                    "spans": [
                        {
                            "offset": 12886,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "was deepened to 140 meters from 1951 to 1966",
                    "polygon": [
                        1.151,
                        4.2444,
                        4.1599,
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                        4.1599,
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                    ],
                    "spans": [
                        {
                            "offset": 12938,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "and further deepened to 210 meters from 1969 to",
                    "polygon": [
                        1.1463,
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                        4.1647,
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                        4.1647,
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                    ],
                    "spans": [
                        {
                            "offset": 12983,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "the present.",
                    "polygon": [
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                        4.569,
                        1.8674,
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                    ],
                    "spans": [
                        {
                            "offset": 13031,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "The quantification of oblique tows is ac-",
                    "polygon": [
                        1.3277,
                        4.9032,
                        4.1695,
                        4.8984,
                        4.1695,
                        5.0417,
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                    ],
                    "spans": [
                        {
                            "offset": 13044,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "complished by one value, the standard haul factor",
                    "polygon": [
                        1.1558,
                        5.0751,
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                        5.0655,
                        4.179,
                        5.204,
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                    "spans": [
                        {
                            "offset": 13086,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "(SHF) and the verification of one assumption. The",
                    "polygon": [
                        1.1701,
                        5.2374,
                        4.1743,
                        5.2279,
                        4.1743,
                        5.3759,
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                    ],
                    "spans": [
                        {
                            "offset": 13136,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "assumption is that approximately equal volumes are",
                    "polygon": [
                        1.1558,
                        5.4045,
                        4.1838,
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                        4.1838,
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                    "spans": [
                        {
                            "offset": 13186,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "filtered from each depth of interest. This assump-",
                    "polygon": [
                        1.1606,
                        5.5668,
                        4.1743,
                        5.5573,
                        4.1743,
                        5.7101,
                        1.1606,
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                    ],
                    "spans": [
                        {
                            "offset": 13237,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "tion allows one to refer eggs per unit volume of",
                    "polygon": [
                        1.1606,
                        5.7339,
                        4.1886,
                        5.7292,
                        4.1886,
                        5.8772,
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                    ],
                    "spans": [
                        {
                            "offset": 13288,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "water to eggs per unit area of sea surface.",
                    "polygon": [
                        1.1654,
                        5.9154,
                        3.6489,
                        5.8963,
                        3.6489,
                        6.0347,
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                        6.0586
                    ],
                    "spans": [
                        {
                            "offset": 13337,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "The SHF allows each observation to be stand-",
                    "polygon": [
                        1.3373,
                        6.2257,
                        4.1743,
                        6.2209,
                        4.1743,
                        6.3594,
                        1.3373,
                        6.3689
                    ],
                    "spans": [
                        {
                            "offset": 13381,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "ardized to a unit referred to as eggs per 10 space",
                    "polygon": [
                        1.1701,
                        6.3928,
                        4.1886,
                        6.3928,
                        4.1886,
                        6.536,
                        1.1701,
                        6.536
                    ],
                    "spans": [
                        {
                            "offset": 13426,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "meter of sea surface area. The equation for the",
                    "polygon": [
                        1.1701,
                        6.5647,
                        4.1838,
                        6.5551,
                        4.1838,
                        6.7031,
                        1.1701,
                        6.7079
                    ],
                    "spans": [
                        {
                            "offset": 13477,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "standardized haul factor is (Kramer and Ahlstrom",
                    "polygon": [
                        1.1749,
                        6.727,
                        4.179,
                        6.7222,
                        4.1838,
                        6.8655,
                        1.1749,
                        6.875
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                    "spans": [
                        {
                            "offset": 13525,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "1968, CalCOFI Atlas 9):",
                    "polygon": [
                        1.1797,
                        6.8989,
                        2.6268,
                        6.8941,
                        2.6268,
                        7.0373,
                        1.1797,
                        7.0421
                    ],
                    "spans": [
                        {
                            "offset": 13574,
                            "length": 23
                        }
                    ]
                },
                {
                    "content": "SHF =",
                    "polygon": [
                        1.5283,
                        7.1853,
                        2.0919,
                        7.1853,
                        2.0871,
                        7.3763,
                        1.5236,
                        7.3715
                    ],
                    "spans": [
                        {
                            "offset": 13598,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "10*D",
                    "polygon": [
                        2.1827,
                        7.171,
                        2.5886,
                        7.171,
                        2.5886,
                        7.2856,
                        2.1874,
                        7.2904
                    ],
                    "spans": [
                        {
                            "offset": 13604,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "R*A*P",
                    "polygon": [
                        2.1922,
                        7.3238,
                        2.6841,
                        7.3238,
                        2.6841,
                        7.4384,
                        2.1922,
                        7.4431
                    ],
                    "spans": [
                        {
                            "offset": 13609,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "where \"D\" is the depth in meters, \"R\" is the number",
                    "polygon": [
                        1.194,
                        7.5577,
                        4.1934,
                        7.5482,
                        4.1934,
                        7.6866,
                        1.194,
                        7.701
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                    "spans": [
                        {
                            "offset": 13615,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "of revolutions of a flow meter in the mouth of the net,",
                    "polygon": [
                        1.1892,
                        7.7201,
                        4.179,
                        7.7105,
                        4.1838,
                        7.8537,
                        1.1892,
                        7.8585
                    ],
                    "spans": [
                        {
                            "offset": 13667,
                            "length": 55
                        }
                    ]
                },
                {
                    "content": "\"A\" is the area of the mouth of the net, and \"P\" is the",
                    "polygon": [
                        1.1988,
                        7.8776,
                        4.2029,
                        7.8728,
                        4.2029,
                        8.0161,
                        1.1988,
                        8.0256
                    ],
                    "spans": [
                        {
                            "offset": 13723,
                            "length": 55
                        }
                    ]
                },
                {
                    "content": "length of the column of water in meters needed to",
                    "polygon": [
                        1.1845,
                        8.0447,
                        4.1934,
                        8.0352,
                        4.1934,
                        8.1784,
                        1.1845,
                        8.1927
                    ],
                    "spans": [
                        {
                            "offset": 13779,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "effect one revolution of the flow meter. The units for",
                    "polygon": [
                        1.1845,
                        8.207,
                        4.1982,
                        8.1927,
                        4.2029,
                        8.3359,
                        1.1845,
                        8.3503
                    ],
                    "spans": [
                        {
                            "offset": 13829,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "the reciprocal of the SHF are the mean number of",
                    "polygon": [
                        1.1892,
                        8.3694,
                        4.2029,
                        8.355,
                        4.2029,
                        8.503,
                        1.1892,
                        8.5174
                    ],
                    "spans": [
                        {
                            "offset": 13884,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "cubic meters of water filtered per 10 meters of depth.",
                    "polygon": [
                        1.194,
                        8.5221,
                        4.1934,
                        8.5174,
                        4.1934,
                        8.6701,
                        1.194,
                        8.6749
                    ],
                    "spans": [
                        {
                            "offset": 13933,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "For shallow tows (<200 m) the depth of tow and",
                    "polygon": [
                        1.3516,
                        8.842,
                        4.2029,
                        8.8325,
                        4.2029,
                        8.9852,
                        1.3564,
                        8.9948
                    ],
                    "spans": [
                        {
                            "offset": 13988,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "trajectory of the net are estimated from the mean of",
                    "polygon": [
                        1.1892,
                        9.0187,
                        4.2077,
                        8.9996,
                        4.2077,
                        9.1428,
                        1.1892,
                        9.1619
                    ],
                    "spans": [
                        {
                            "offset": 14035,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "the tangents of the wire angle. For deep tows, the",
                    "polygon": [
                        1.194,
                        9.1762,
                        4.2077,
                        9.1619,
                        4.2077,
                        9.3051,
                        1.194,
                        9.3194
                    ],
                    "spans": [
                        {
                            "offset": 14088,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "wire angles do not provide accurate estimates of",
                    "polygon": [
                        1.194,
                        9.3433,
                        4.222,
                        9.3194,
                        4.222,
                        9.4674,
                        1.194,
                        9.4865
                    ],
                    "spans": [
                        {
                            "offset": 14139,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "depth, so for this purpose we have included a",
                    "polygon": [
                        1.1892,
                        9.4961,
                        4.2029,
                        9.477,
                        4.2029,
                        9.6298,
                        1.1892,
                        9.6441
                    ],
                    "spans": [
                        {
                            "offset": 14188,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "conductivity temperature and depth device (CTD).",
                    "polygon": [
                        1.1892,
                        9.6584,
                        4.2029,
                        9.6393,
                        4.2029,
                        9.8017,
                        1.1892,
                        9.8112
                    ],
                    "spans": [
                        {
                            "offset": 14234,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "From this instrument we display measures of depth",
                    "polygon": [
                        1.194,
                        9.8112,
                        4.2077,
                        9.8064,
                        4.2125,
                        9.964,
                        1.194,
                        9.9688
                    ],
                    "spans": [
                        {
                            "offset": 14283,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "and record depth and temperatures each 20",
                    "polygon": [
                        4.4417,
                        0.9501,
                        7.3026,
                        0.9453,
                        7.3026,
                        1.0933,
                        4.4417,
                        1.1029
                    ],
                    "spans": [
                        {
                            "offset": 14333,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "seconds (Figure 5). The display allows us to",
                    "polygon": [
                        4.4465,
                        1.1124,
                        7.3074,
                        1.1076,
                        7.3074,
                        1.2556,
                        4.4465,
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                    "spans": [
                        {
                            "offset": 14375,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "control the ship and winch speeds to follow an",
                    "polygon": [
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                        1.27,
                        7.3026,
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                    "spans": [
                        {
                            "offset": 14420,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "approximately straight trajectory (Figure 5). The",
                    "polygon": [
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                        7.3121,
                        1.4275,
                        7.3121,
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                    "spans": [
                        {
                            "offset": 14467,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "distributions of the standard haul factor are",
                    "polygon": [
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                        7.3169,
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                    "spans": [
                        {
                            "offset": 14517,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "shown in Figure 6. The lower haul factor for the",
                    "polygon": [
                        4.4561,
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                        1.7474,
                        7.3169,
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                    "spans": [
                        {
                            "offset": 14563,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "deep bongo reflects the greater volume of water",
                    "polygon": [
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                        7.3121,
                        2.053,
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                    "spans": [
                        {
                            "offset": 14612,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "filtered per unit depth, not the greater depth.",
                    "polygon": [
                        4.4608,
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                        7.1163,
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                        7.1163,
                        2.2248,
                        4.4608,
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                    "spans": [
                        {
                            "offset": 14660,
                            "length": 47
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                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                        2.5113,
                        4.7999,
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                    ],
                    "spans": [
                        {
                            "offset": 14708,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "200",
                    "polygon": [
                        4.5898,
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                        4.7999,
                        2.8168,
                        4.7999,
                        2.9076,
                        4.5898,
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                    "spans": [
                        {
                            "offset": 14710,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                        7.1306,
                        2.8741,
                        7.1354,
                        2.9601,
                        7.0112,
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                    ],
                    "spans": [
                        {
                            "offset": 14714,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "400",
                    "polygon": [
                        4.5993,
                        3.1319,
                        4.7952,
                        3.1272,
                        4.7952,
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                        4.5993,
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                    "spans": [
                        {
                            "offset": 14717,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "DEPTH (m)",
                    "polygon": [
                        4.4465,
                        3.7431,
                        4.4465,
                        3.1654,
                        4.5564,
                        3.1654,
                        4.5564,
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                    ],
                    "spans": [
                        {
                            "offset": 14721,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                        7.0877,
                        3.3277,
                        7.0924,
                        3.4184,
                        7.0208,
                        3.4136
                    ],
                    "spans": [
                        {
                            "offset": 14731,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "600",
                    "polygon": [
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                        3.428,
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                    "spans": [
                        {
                            "offset": 14733,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "800",
                    "polygon": [
                        4.5898,
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                        4.8047,
                        3.7431,
                        4.8047,
                        3.829,
                        4.5898,
                        3.829
                    ],
                    "spans": [
                        {
                            "offset": 14737,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "-10",
                    "polygon": [
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                        7.188,
                        3.7908,
                        7.1832,
                        3.8815,
                        7.016,
                        3.8767
                    ],
                    "spans": [
                        {
                            "offset": 14741,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "RATE OF ASCENT (m/min)",
                    "polygon": [
                        7.1927,
                        4.1107,
                        7.1832,
                        2.7452,
                        7.3026,
                        2.7452,
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                    ],
                    "spans": [
                        {
                            "offset": 14745,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "1000",
                    "polygon": [
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                        4.8047,
                        4.0534,
                        4.7999,
                        4.1489,
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                        4.1441
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                    "spans": [
                        {
                            "offset": 14768,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "-20",
                    "polygon": [
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                        7.1975,
                        4.2587,
                        7.1975,
                        4.3398,
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                    "spans": [
                        {
                            "offset": 14773,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1200",
                    "polygon": [
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                        4.8143,
                        4.3637,
                        4.8143,
                        4.4592,
                        4.5564,
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                    ],
                    "spans": [
                        {
                            "offset": 14777,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                        4.8668,
                        4.4306,
                        4.8668,
                        4.5117,
                        4.8095,
                        4.5117
                    ],
                    "spans": [
                        {
                            "offset": 14782,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "30",
                    "polygon": [
                        5.2775,
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                        5.4208,
                        4.4306,
                        5.4208,
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                    ],
                    "spans": [
                        {
                            "offset": 14784,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "60",
                    "polygon": [
                        5.7981,
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                        5.9271,
                        4.4306,
                        5.9271,
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                    ],
                    "spans": [
                        {
                            "offset": 14787,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "90",
                    "polygon": [
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                        6.4477,
                        4.4258,
                        6.4477,
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                    ],
                    "spans": [
                        {
                            "offset": 14790,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "120",
                    "polygon": [
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                        4.4258,
                        6.9874,
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                    "spans": [
                        {
                            "offset": 14793,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "TIME (minutes)",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 14797,
                            "length": 14
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                    ]
                },
                {
                    "content": "Figure 5. The trajectory of a deep bongo tow to",
                    "polygon": [
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                        4.7027,
                        7.1975,
                        4.8411,
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                    "spans": [
                        {
                            "offset": 14812,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "1200 meters depth (scale at left). The rates of",
                    "polygon": [
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                        7.2071,
                        4.8507,
                        7.2071,
                        4.9844,
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                    "spans": [
                        {
                            "offset": 14860,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "ascent and descent (scale at right) are plotted",
                    "polygon": [
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                        7.2023,
                        4.9939,
                        7.2023,
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                    "spans": [
                        {
                            "offset": 14908,
                            "length": 47
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                    ]
                },
                {
                    "content": "each 20 seconds. On descent, the desired rate is",
                    "polygon": [
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                    "spans": [
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                            "offset": 14956,
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                    ]
                },
                {
                    "content": "15 meters per minute. On ascent the desired rate",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 15005,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "is 7 meters per minute.",
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                        5.4427,
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                    "spans": [
                        {
                            "offset": 15054,
                            "length": 23
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                    ]
                },
                {
                    "content": "0.50",
                    "polygon": [
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                        5.8772,
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                            "offset": 15078,
                            "length": 4
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                },
                {
                    "content": "Bongo",
                    "polygon": [
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                    "spans": [
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                            "offset": 15083,
                            "length": 5
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                    ]
                },
                {
                    "content": "0.40 -",
                    "polygon": [
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                        6.3498,
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                },
                {
                    "content": "Deep Bongo",
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                    "spans": [
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                            "offset": 15096,
                            "length": 10
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                    ]
                },
                {
                    "content": "PROPORTION",
                    "polygon": [
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                },
                {
                    "content": "0.30",
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                    ]
                },
                {
                    "content": "0.20",
                    "polygon": [
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                    ]
                },
                {
                    "content": "0.10",
                    "polygon": [
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                    ]
                },
                {
                    "content": "0.00",
                    "polygon": [
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                    "spans": [
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                            "offset": 15133,
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                    ]
                },
                {
                    "content": "2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0",
                    "polygon": [
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                },
                {
                    "content": "STANDARD HAUL FACTOR",
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                {
                    "content": "Figure 6. Relationship between the standard",
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                {
                    "content": "haul factor for the deep bongo (left) and the",
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                {
                    "content": "standard bongo (right).",
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                {
                    "content": "The main reason the deep bongo has a",
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                    "content": "smaller standard haul factor is that the net is",
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                {
                    "content": "towed faster. The faster tow makes precise con-",
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                {
                    "content": "4",
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                    "content": "trol of the ship speed possible. The equation that",
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                    "content": "relates the tangent of the wire angle to the ship",
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                    "content": "V = V. + exp (r*tan a)",
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                {
                    "content": "where V is estimated ship speed in meters per second,",
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                    "content": "Vo is the estimated intercept from a nonlinear least",
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                    "content": "squares fit to the expected equation by the Marquardt",
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                    "content": "algorithm, \"r\" is the exponential slope parameter and",
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                {
                    "content": "\"tan a\" is the tangent of the wire angle in degrees.",
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                    "content": "The parameters and standard errors for the equation",
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                    "content": "are Vo=0.692 (0.039) and r=0.271 (0.037). The",
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                {
                    "content": "scatter plot is shown in Figure 7. The curve explains",
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                    "content": "about 54% of the variance of the data.",
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                    "content": "1.3",
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                        3.6281,
                        1.278,
                        3.6281
                    ],
                    "spans": [
                        {
                            "offset": 16037,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1.2",
                    "polygon": [
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                        4.0445,
                        1.436,
                        4.0445,
                        1.4312,
                        4.1354,
                        1.2732,
                        4.1402
                    ],
                    "spans": [
                        {
                            "offset": 16041,
                            "length": 3
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                    ]
                },
                {
                    "content": "METERS PER SECOND",
                    "polygon": [
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                        1.2158,
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                    "spans": [
                        {
                            "offset": 16045,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "1.1",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16063,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1.0",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16067,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "0.8",
                    "polygon": [
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                        5.6335,
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                        1.2493,
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                    "spans": [
                        {
                            "offset": 16071,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "0.8",
                    "polygon": [
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                        6.1553,
                        1.4216,
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                        1.2493,
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                    "spans": [
                        {
                            "offset": 16075,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "40",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16079,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "45",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16082,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "50",
                    "polygon": [
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                        6.251,
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                    "spans": [
                        {
                            "offset": 16085,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "55",
                    "polygon": [
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                        6.251,
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                    "spans": [
                        {
                            "offset": 16088,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "60",
                    "polygon": [
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                        6.2558,
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                    "spans": [
                        {
                            "offset": 16091,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "65",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16094,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "WIRE ANGLE (degrees(tangent scale))",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16097,
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                    ]
                },
                {
                    "content": "Figure 7. A scatter plot and fitted exponential curve",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16133,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "for the empirical relationship between the speed of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16187,
                            "length": 51
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                    ]
                },
                {
                    "content": "tow and the tangent of the wire angle at the surface.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16239,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "In practice, it is not possible to tow the net in an",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16293,
                            "length": 52
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                    ]
                },
                {
                    "content": "even trajectory. It takes several minutes before the",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16346,
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                    ]
                },
                {
                    "content": "net responds to the change in ship's speed with the",
                    "polygon": [
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                            "offset": 16399,
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                    ]
                },
                {
                    "content": "long towing wire. Also, there are undersea currents",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16451,
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                        }
                    ]
                },
                {
                    "content": "at different times and places which alter the con-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16503,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "figuration of the towing wire. Thus, our prime",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16554,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "requirement is that each 10 meter level has",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16601,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "equivalent variation in volume filtered over the",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16645,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "survey area even though there will be cases of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16694,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "undersampling and oversampling on individual",
                    "polygon": [
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                    "spans": [
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                            "offset": 16741,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "tows. The success of this procedure depends on the",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16786,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "actual distribution of the organisms in question. In",
                    "polygon": [
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                    "spans": [
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                            "offset": 16837,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "the extreme case, if the eggs are randomly dis-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16890,
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                        }
                    ]
                },
                {
                    "content": "tributed, the assumption of even trajectories is un-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16938,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "necessary. If the non-randomness is exhibited as",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 16991,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "broad depth zones (50 meters +) containing the",
                    "polygon": [
                        0.9908,
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                    "spans": [
                        {
                            "offset": 17040,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "various stages of eggs, presumably the number of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 17087,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "alternating episodes of over- and under- sam-",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17136,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "pling would be sufficient to result in little or",
                    "polygon": [
                        4.3605,
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                    ],
                    "spans": [
                        {
                            "offset": 17182,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "negligible bias. If the layer proves to be so",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 17231,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "compact that significant bias or imprecision",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 17277,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "arises from trajectory error, which we cannot",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17322,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "control, the procedure will have to be refined. (P.",
                    "polygon": [
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                        7.2181,
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                    ],
                    "spans": [
                        {
                            "offset": 17368,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "Smith, FTS 893-7169)",
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                    ],
                    "spans": [
                        {
                            "offset": 17420,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "COMMERCIAL AND",
                    "polygon": [
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                        5.9353,
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                    ],
                    "spans": [
                        {
                            "offset": 17441,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "RECREATIONAL FISHERIES",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17456,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "RESEARCH FOR MANAGEMENT",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17479,
                            "length": 23
                        }
                    ]
                },
                {
                    "content": "Recent Trends in Worldwide Tuna",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 17503,
                            "length": 31
                        }
                    ]
                },
                {
                    "content": "Production and Trade Analyzed",
                    "polygon": [
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                        6.5145,
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                    ],
                    "spans": [
                        {
                            "offset": 17535,
                            "length": 29
                        }
                    ]
                },
                {
                    "content": "Sam Herrick, Industry Economist at the La",
                    "polygon": [
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                        7.2037,
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                    ],
                    "spans": [
                        {
                            "offset": 17565,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "Jolla Laboratory, and Tony Applebaum, Student",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17607,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Intern from San Diego State University, have",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17653,
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                        }
                    ]
                },
                {
                    "content": "completed an analysis of recent trends in global",
                    "polygon": [
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                        7.1989,
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                    "spans": [
                        {
                            "offset": 17698,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "catches of tuna and canned tuna production.",
                    "polygon": [
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                            "offset": 17747,
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                        }
                    ]
                },
                {
                    "content": "They find that worldwide catches of tuna have",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17791,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "increased steadily from 2.462 million metric tons",
                    "polygon": [
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                    "spans": [
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                            "offset": 17837,
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                        }
                    ]
                },
                {
                    "content": "(mt) in 1979, to 3.418 million mt in 1986, an",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 17887,
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                        }
                    ]
                },
                {
                    "content": "increase of 39% in 8 years. From 1979 to 1985,",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 17933,
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                        }
                    ]
                },
                {
                    "content": "global production of canned tuna rose from",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 17980,
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                        }
                    ]
                },
                {
                    "content": "607,000 mt to 703,000 mt, an increase of 16%.",
                    "polygon": [
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                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "While these increases in catches and canned",
                    "polygon": [
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                    "spans": [
                        {
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                    ]
                },
                {
                    "content": "tuna production are impressive in themselves,",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "perhaps more striking is the considerable",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 18159,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "development in the harvesting and canning",
                    "polygon": [
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                    "content": "areas relates to a growing worldwide demand for",
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                    "content": "The linear trend model in Figure 8 shows",
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                    "content": "global tuna catches increasing at an annual",
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                    "content": "fishing operations of developing nations.",
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                    "content": "global catch trend, projection and 95% confidence",
                    "polygon": [
                        1.151,
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                        2.6402,
                        4.1743,
                        2.7834,
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                    "spans": [
                        {
                            "offset": 19777,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "bands are shown in Figure 8. Separate linear",
                    "polygon": [
                        1.1654,
                        2.8073,
                        4.179,
                        2.8073,
                        4.179,
                        2.9553,
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                    "spans": [
                        {
                            "offset": 19827,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "forecasts for the developing nations' catch and the",
                    "polygon": [
                        1.1606,
                        2.9744,
                        4.1838,
                        2.9744,
                        4.1838,
                        3.1224,
                        1.1606,
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                    ],
                    "spans": [
                        {
                            "offset": 19872,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "developed nations' catch are 2.7 million mt",
                    "polygon": [
                        1.1654,
                        3.1415,
                        4.179,
                        3.1367,
                        4.179,
                        3.2799,
                        1.1654,
                        3.2895
                    ],
                    "spans": [
                        {
                            "offset": 19924,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "(plus/minus 200,000 mt) and 1.8 million mt",
                    "polygon": [
                        1.1701,
                        3.3086,
                        4.179,
                        3.299,
                        4.179,
                        3.447,
                        1.1749,
                        3.4614
                    ],
                    "spans": [
                        {
                            "offset": 19968,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "(plus/minus 400,000 mt) respectively by 1995.",
                    "polygon": [
                        1.1701,
                        3.4757,
                        3.945,
                        3.4661,
                        3.945,
                        3.6141,
                        1.1701,
                        3.6285
                    ],
                    "spans": [
                        {
                            "offset": 20011,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "4.6 -",
                    "polygon": [
                        1.3134,
                        4.0009,
                        1.4758,
                        4.0152,
                        1.4758,
                        4.0725,
                        1.3134,
                        4.0725
                    ],
                    "spans": [
                        {
                            "offset": 20057,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "Upper 95% CB",
                    "polygon": [
                        3.0901,
                        4.082,
                        3.6632,
                        4.0773,
                        3.6632,
                        4.1727,
                        3.0901,
                        4.1775
                    ],
                    "spans": [
                        {
                            "offset": 20063,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "MILLIONS OF METRIC TONS",
                    "polygon": [
                        1.1749,
                        5.4714,
                        1.1749,
                        4.2014,
                        1.2609,
                        4.2014,
                        1.2657,
                        5.4714
                    ],
                    "spans": [
                        {
                            "offset": 20076,
                            "length": 23
                        }
                    ]
                },
                {
                    "content": "4.2",
                    "polygon": [
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                        4.2826,
                        1.4471,
                        4.2826,
                        1.4471,
                        4.3542,
                        1.2943,
                        4.3542
                    ],
                    "spans": [
                        {
                            "offset": 20100,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Predicted",
                    "polygon": [
                        2.5886,
                        4.4401,
                        2.9564,
                        4.4401,
                        2.9564,
                        4.5213,
                        2.5886,
                        4.5213
                    ],
                    "spans": [
                        {
                            "offset": 20104,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "3.8",
                    "polygon": [
                        1.2943,
                        4.5642,
                        1.4567,
                        4.569,
                        1.4615,
                        4.6311,
                        1.2943,
                        4.6359
                    ],
                    "spans": [
                        {
                            "offset": 20114,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Actual",
                    "polygon": [
                        2.283,
                        4.6454,
                        2.517,
                        4.6454,
                        2.517,
                        4.7218,
                        2.283,
                        4.7218
                    ],
                    "spans": [
                        {
                            "offset": 20118,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "Lower 95% CB",
                    "polygon": [
                        3.1617,
                        4.7934,
                        3.7301,
                        4.7934,
                        3.7301,
                        4.8746,
                        3.1617,
                        4.8793
                    ],
                    "spans": [
                        {
                            "offset": 20125,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "3.4 -",
                    "polygon": [
                        1.2991,
                        4.8411,
                        1.4806,
                        4.8555,
                        1.4806,
                        4.9175,
                        1.2991,
                        4.9223
                    ],
                    "spans": [
                        {
                            "offset": 20138,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "3.0",
                    "polygon": [
                        1.2991,
                        5.1276,
                        1.471,
                        5.1276,
                        1.471,
                        5.1944,
                        1.2991,
                        5.204
                    ],
                    "spans": [
                        {
                            "offset": 20144,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "2.6",
                    "polygon": [
                        1.2943,
                        5.395,
                        1.428,
                        5.3997,
                        1.428,
                        5.4714,
                        1.2943,
                        5.4666
                    ],
                    "spans": [
                        {
                            "offset": 20148,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "2.2 -",
                    "polygon": [
                        1.3134,
                        5.6767,
                        1.4949,
                        5.6862,
                        1.4949,
                        5.7578,
                        1.3134,
                        5.753
                    ],
                    "spans": [
                        {
                            "offset": 20152,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "80",
                    "polygon": [
                        1.6191,
                        5.7578,
                        1.7146,
                        5.7578,
                        1.7146,
                        5.8342,
                        1.6191,
                        5.8342
                    ],
                    "spans": [
                        {
                            "offset": 20158,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "82",
                    "polygon": [
                        1.9534,
                        5.7578,
                        2.0442,
                        5.7626,
                        2.0442,
                        5.8342,
                        1.9534,
                        5.8342
                    ],
                    "spans": [
                        {
                            "offset": 20161,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "84",
                    "polygon": [
                        2.2877,
                        5.753,
                        2.3785,
                        5.753,
                        2.3785,
                        5.8294,
                        2.283,
                        5.8294
                    ],
                    "spans": [
                        {
                            "offset": 20164,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "86",
                    "polygon": [
                        2.6173,
                        5.7483,
                        2.7176,
                        5.7483,
                        2.7176,
                        5.8294,
                        2.6173,
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                    ],
                    "spans": [
                        {
                            "offset": 20167,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "88",
                    "polygon": [
                        2.9564,
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                        5.753,
                        3.0519,
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                    ],
                    "spans": [
                        {
                            "offset": 20170,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "90",
                    "polygon": [
                        3.2955,
                        5.753,
                        3.3862,
                        5.753,
                        3.391,
                        5.8247,
                        3.2955,
                        5.8294
                    ],
                    "spans": [
                        {
                            "offset": 20173,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "92",
                    "polygon": [
                        3.6155,
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                        3.7253,
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                        3.7253,
                        5.8247,
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                    ],
                    "spans": [
                        {
                            "offset": 20176,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "94",
                    "polygon": [
                        3.9498,
                        5.7483,
                        4.0596,
                        5.7483,
                        4.0596,
                        5.8247,
                        3.9498,
                        5.8294
                    ],
                    "spans": [
                        {
                            "offset": 20179,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "YEAR",
                    "polygon": [
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                        2.942,
                        5.944,
                        2.9373,
                        6.0204,
                        2.7176,
                        6.0204
                    ],
                    "spans": [
                        {
                            "offset": 20182,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "Figure 8. Actual and predicted global tuna catches,",
                    "polygon": [
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                        6.1111,
                        4.0358,
                        6.1111,
                        4.0358,
                        6.2496,
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                    "spans": [
                        {
                            "offset": 20187,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "1979-1995.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 20239,
                            "length": 10
                        }
                    ]
                },
                {
                    "content": "Globally, canned tuna production grew at an",
                    "polygon": [
                        1.3516,
                        6.5647,
                        4.1982,
                        6.5694,
                        4.1982,
                        6.7127,
                        1.3516,
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                    "spans": [
                        {
                            "offset": 20250,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "average rate of 3% annually from 1979 through",
                    "polygon": [
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                        4.1982,
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                    "spans": [
                        {
                            "offset": 20294,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "1985 as shown in Figure 9. The rapid development",
                    "polygon": [
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                        4.2029,
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                    ],
                    "spans": [
                        {
                            "offset": 20340,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "of canned tuna processing capability in developing",
                    "polygon": [
                        1.194,
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                        7.066,
                        4.1982,
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                    "spans": [
                        {
                            "offset": 20389,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "nations over the period accounts for most of this",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 20440,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "growth. From 1979 to 1985 canned production by",
                    "polygon": [
                        1.1892,
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                        4.2029,
                        7.3954,
                        4.2029,
                        7.5577,
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                    ],
                    "spans": [
                        {
                            "offset": 20490,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "developing nations increased 84%, at an average",
                    "polygon": [
                        1.1892,
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                        4.2125,
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                    ],
                    "spans": [
                        {
                            "offset": 20537,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "annual rate of 11% compared to a 5% increase for",
                    "polygon": [
                        1.194,
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                        7.7248,
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                    "spans": [
                        {
                            "offset": 20585,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "developed nations, at an average annual rate of",
                    "polygon": [
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                        7.9015,
                        4.222,
                        7.8967,
                        4.222,
                        8.0447,
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                    "spans": [
                        {
                            "offset": 20634,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "1%. By 1985, developing nations accounted for",
                    "polygon": [
                        1.2036,
                        8.059,
                        4.2125,
                        8.059,
                        4.2125,
                        8.2166,
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                        8.2166
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                    "spans": [
                        {
                            "offset": 20682,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "22% of the world's annual canned tuna production",
                    "polygon": [
                        1.194,
                        8.2261,
                        4.2077,
                        8.2309,
                        4.2077,
                        8.3789,
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                    "spans": [
                        {
                            "offset": 20728,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "vis a vis 14% in 1979. The linear trend model for",
                    "polygon": [
                        1.1988,
                        8.3932,
                        4.2173,
                        8.3932,
                        4.2173,
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                        8.546
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                    "spans": [
                        {
                            "offset": 20777,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "canned tuna predicts global production will reach",
                    "polygon": [
                        1.1988,
                        8.5699,
                        4.2125,
                        8.5603,
                        4.2125,
                        8.7131,
                        1.1988,
                        8.7227
                    ],
                    "spans": [
                        {
                            "offset": 20827,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "900,000 mt (plus/minus 200,000 mt) by 1995. The",
                    "polygon": [
                        1.1988,
                        8.7322,
                        4.222,
                        8.7274,
                        4.222,
                        8.8802,
                        1.1988,
                        8.885
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                    "spans": [
                        {
                            "offset": 20877,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "developing nations' production is estimated to be",
                    "polygon": [
                        1.1988,
                        8.9041,
                        4.222,
                        8.8993,
                        4.222,
                        9.0473,
                        1.1988,
                        9.0569
                    ],
                    "spans": [
                        {
                            "offset": 20925,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "270,000 million mt (plus/minus 60,000 mt), and",
                    "polygon": [
                        1.2036,
                        9.0664,
                        4.2173,
                        9.0664,
                        4.2173,
                        9.2144,
                        1.2036,
                        9.2192
                    ],
                    "spans": [
                        {
                            "offset": 20975,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "production by developed nations is predicted to be",
                    "polygon": [
                        1.194,
                        9.2431,
                        4.222,
                        9.2383,
                        4.222,
                        9.3815,
                        1.194,
                        9.3958
                    ],
                    "spans": [
                        {
                            "offset": 21022,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "630,000 mt (plus/minus 150,000 mt) by 1995,",
                    "polygon": [
                        1.2036,
                        9.4006,
                        4.2173,
                        9.4006,
                        4.2173,
                        9.5534,
                        1.2036,
                        9.5534
                    ],
                    "spans": [
                        {
                            "offset": 21073,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "based on linear trends estimated for each.",
                    "polygon": [
                        1.1988,
                        9.5725,
                        3.7014,
                        9.5725,
                        3.7014,
                        9.7157,
                        1.1988,
                        9.7109
                    ],
                    "spans": [
                        {
                            "offset": 21117,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "MILLIONS OF METRIC TONS (Canned product)",
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                        1.0647,
                        4.5325,
                        1.0647,
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                    ],
                    "spans": [
                        {
                            "offset": 21160,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "1.1",
                    "polygon": [
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                        1.079,
                        4.6805,
                        1.0742,
                        4.6805,
                        1.1458,
                        4.5755,
                        1.1458
                    ],
                    "spans": [
                        {
                            "offset": 21201,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1.0",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 21205,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Upper 95% CB",
                    "polygon": [
                        6.1754,
                        1.3511,
                        6.7486,
                        1.3464,
                        6.7486,
                        1.4323,
                        6.1754,
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                    ],
                    "spans": [
                        {
                            "offset": 21209,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "0.9",
                    "polygon": [
                        4.5755,
                        1.6615,
                        4.6996,
                        1.6615,
                        4.6949,
                        1.7426,
                        4.5755,
                        1.7426
                    ],
                    "spans": [
                        {
                            "offset": 21222,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Predicted",
                    "polygon": [
                        6.653,
                        1.9193,
                        7.0256,
                        1.9145,
                        7.0256,
                        1.9957,
                        6.653,
                        2.0004
                    ],
                    "spans": [
                        {
                            "offset": 21226,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "0.8",
                    "polygon": [
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                        1.9575,
                        4.6949,
                        1.9575,
                        4.6949,
                        2.0386,
                        4.5802,
                        2.0386
                    ],
                    "spans": [
                        {
                            "offset": 21236,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "0.7",
                    "polygon": [
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                        2.2582,
                        4.7235,
                        2.2535,
                        4.7235,
                        2.3394,
                        4.5755,
                        2.3346
                    ],
                    "spans": [
                        {
                            "offset": 21240,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Actual",
                    "polygon": [
                        5.7551,
                        2.2582,
                        6.0226,
                        2.2535,
                        6.0226,
                        2.3346,
                        5.7599,
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                    ],
                    "spans": [
                        {
                            "offset": 21244,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "Lower 95% CB",
                    "polygon": [
                        6.376,
                        2.3967,
                        6.9348,
                        2.3919,
                        6.9348,
                        2.4683,
                        6.376,
                        2.4731
                    ],
                    "spans": [
                        {
                            "offset": 21251,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "0.6",
                    "polygon": [
                        4.5564,
                        2.559,
                        4.7187,
                        2.5543,
                        4.7187,
                        2.6354,
                        4.5564,
                        2.6354
                    ],
                    "spans": [
                        {
                            "offset": 21264,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "0.5",
                    "polygon": [
                        4.5611,
                        2.8503,
                        4.6996,
                        2.855,
                        4.6996,
                        2.9314,
                        4.5611,
                        2.9314
                    ],
                    "spans": [
                        {
                            "offset": 21268,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "80",
                    "polygon": [
                        4.8763,
                        2.9314,
                        4.9814,
                        2.9362,
                        4.9766,
                        3.0126,
                        4.8811,
                        3.0126
                    ],
                    "spans": [
                        {
                            "offset": 21272,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "82",
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                    "content": "YEAR",
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                    "content": "Figure 9. Actual and predicted global canned",
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                    "content": "tuna production, 1979-1995.",
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                    "content": "If prevailing trends continue, and assuming",
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                    "content": "that tuna resources can support expanded har-",
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                    "content": "vests, global output of raw and processed tuna",
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                {
                    "content": "may increase by as much as 30% by 1995. If",
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                    "content": "recent patterns of growth continue into the fu-",
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                    "content": "ture, this expansion is likely to be led by develop-",
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                    "content": "ing nations with burgeoning tuna industries, in",
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                    "content": "which case, the tuna industries of the developed",
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                    "content": "nations will continue to face more intense com-",
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                    "content": "petition, both on the fishing grounds and in the",
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                    "content": "marketplace. (S. Herrick, Jr., FTS 893-7111).",
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                    "content": "Progress of Southern California",
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                    "content": "Sportfish Economic Survey",
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                    "content": "Industry Economist Cynthia Thomson has",
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                    "content": "been working with a private contractor, HBRS of",
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                    "content": "of survey instruments for the southern California",
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                    "content": "sportfish economic survey. The survey is spon-",
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                        }
                    ]
                },
                {
                    "content": "and 2) a follow-up mail questionnaire directed at",
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                {
                    "content": "those telephone respondents who made at least one",
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                },
                {
                    "content": "saltwater fishing trip in the previous 12 months.",
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                {
                    "content": "The survey covers both shore- and boat-based trips",
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                },
                {
                    "content": "in southern California, including boat trips depart-",
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                },
                {
                    "content": "ing from U.S. waters but fishing in Mexican waters.",
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                    ]
                },
                {
                    "content": "Anglers who do not reside in southern California",
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                    ]
                },
                {
                    "content": "coastal counties (and are therefore not included in",
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                },
                {
                    "content": "the telephone canvass) will also be represented in",
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                },
                {
                    "content": "the survey. Names and telephone numbers of such",
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                        {
                            "offset": 23490,
                            "length": 47
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                    ]
                },
                {
                    "content": "individuals will be obtained from the intercept por-",
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                    "spans": [
                        {
                            "offset": 23538,
                            "length": 52
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                    ]
                },
                {
                    "content": "tion of the Marine Recreational Fishery Statistics",
                    "polygon": [
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                },
                {
                    "content": "Survey. (C. Thomson, FTS 893- 7116)",
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                },
                {
                    "content": "Economic Models of Pacific Coast",
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                    ]
                },
                {
                    "content": "Commercial Fisheries",
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                },
                {
                    "content": "Dale Squires, Industry Economist, SWFC, and",
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                            "offset": 23732,
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                    ]
                },
                {
                    "content": "Wesley Silverthorne, Regional Economist, SWR,",
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                },
                {
                    "content": "continued developing a mixed integer program-",
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                            "offset": 23822,
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                    ]
                },
                {
                    "content": "ming model of the west coast sablefish fleet. The",
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                    ]
                },
                {
                    "content": "model will be used to address the allocation of",
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                {
                    "content": "sablefish quota between the fixed gear (fish pot and",
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                },
                {
                    "content": "long line) and groundfish trawl fleets. Squires has",
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                    "content": "also been working with Samuel Herrick, Industry",
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                },
                {
                    "content": "Economist, in the initial development stages of a",
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                },
                {
                    "content": "coast-wide quadratic programming model. This",
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                },
                {
                    "content": "model will incorporate the major gear types and",
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                },
                {
                    "content": "fisheries and will be used to analyze policy ques-",
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                },
                {
                    "content": "tions as they arise. (D. Squires, FTS 893-7113)",
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                },
                {
                    "content": "New Chairman for PFMC's Scientific and",
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                },
                {
                    "content": "Statistical Committee (SSC)",
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                },
                {
                    "content": "At the Pacific Fishery Management Council",
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                },
                {
                    "content": "meeting, March 1989, Dr. Daniel Huppert, Industry",
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                {
                    "content": "Economist at the La Jolla Laboratory, was installed",
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                {
                    "content": "as Chairman of the Scientific and Statistical Com-",
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                    "content": "mittee. Dr. Huppert has been a member of the",
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                    "content": "committee since 1980, and takes over the chair-",
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                },
                {
                    "content": "manship from Dr. Donald Bevan of the University",
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                    "content": "of Washington. Duties of the Chairman include",
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                {
                    "content": "developing meeting agendas, running the five or so",
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                    "content": "meetings per year, and reporting SSC comments",
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                {
                    "content": "and recommendations to the Council. (D. Huppert,",
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                    "content": "FTS 893-7114)",
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                },
                {
                    "content": "FISHERY-MARINE",
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                },
                {
                    "content": "MAMMAL",
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                    "spans": [
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                },
                {
                    "content": "INTERACTIONS",
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                {
                    "content": "DIVISION",
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                },
                {
                    "content": "La Jolla, California",
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                    ]
                },
                {
                    "content": "BIOLOGY ASSESSMENT",
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                    ]
                },
                {
                    "content": "PROGRAM",
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                },
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                    "content": "Report Completed on Mineralization",
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                    ]
                },
                {
                    "content": "Patterns in Teeth of Pilot Whales",
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                            "offset": 25097,
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                    ]
                },
                {
                    "content": "Investigation of age determination in pilot",
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                    ]
                },
                {
                    "content": "whales has been undertaken by Christina Lock-",
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                },
                {
                    "content": "yer, visiting research scientist from the Sea Mam-",
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                },
                {
                    "content": "mal Research Unit, Cambridge, England, during",
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                {
                    "content": "her sabbatical year here at the Southwest",
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                {
                    "content": "Fisheries Center. The study is needed in order",
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                    ]
                },
                {
                    "content": "to verify age for catches of long-finned pilot",
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                },
                {
                    "content": "whales (Globicephala melas) taken in the subsis-",
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                },
                {
                    "content": "tence-type fishery around the Faroe Islands in",
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                        4.1743,
                        4.6072,
                        4.1743,
                        4.76,
                        1.1701,
                        4.7552
                    ],
                    "spans": [
                        {
                            "offset": 28083,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "tifiable mineralization anomalies which might have",
                    "polygon": [
                        1.1701,
                        4.7695,
                        4.1838,
                        4.7743,
                        4.1838,
                        4.9175,
                        1.1701,
                        4.9128
                    ],
                    "spans": [
                        {
                            "offset": 28136,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "biological significance, and assist identification of",
                    "polygon": [
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                        4.1838,
                        4.9319,
                        4.1838,
                        5.0751,
                        1.1701,
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                    ],
                    "spans": [
                        {
                            "offset": 28187,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "potential stressors.",
                    "polygon": [
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                        5.1037,
                        2.283,
                        5.2326,
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                        5.2374
                    ],
                    "spans": [
                        {
                            "offset": 28241,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "One tooth was available for each of seven",
                    "polygon": [
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                        5.4188,
                        4.1838,
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                    ],
                    "spans": [
                        {
                            "offset": 28262,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "known-history captive northeast Pacific short-",
                    "polygon": [
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                        4.1743,
                        5.5764,
                        4.1743,
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                    ],
                    "spans": [
                        {
                            "offset": 28304,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "finned pilot whales, a closely related species",
                    "polygon": [
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                        4.179,
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                    ],
                    "spans": [
                        {
                            "offset": 28351,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "Globicephala macrorhynchus. This material was",
                    "polygon": [
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                        4.179,
                        5.8963,
                        4.179,
                        6.0443,
                        1.1845,
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                    ],
                    "spans": [
                        {
                            "offset": 28398,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "made available by Sea World, San Diego. Six of",
                    "polygon": [
                        1.1701,
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                        4.1934,
                        6.0538,
                        4.1934,
                        6.2114,
                        1.1701,
                        6.2114
                    ],
                    "spans": [
                        {
                            "offset": 28444,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "the seven animals had received tetracycline medica-",
                    "polygon": [
                        1.1701,
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                        4.179,
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                        4.1743,
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                    ],
                    "spans": [
                        {
                            "offset": 28491,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "tion sometime during their lives. Teeth were col-",
                    "polygon": [
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                        4.1838,
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                    ],
                    "spans": [
                        {
                            "offset": 28543,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "lected from these animals at death. Investigation",
                    "polygon": [
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                        4.1838,
                        6.5408,
                        4.1838,
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                    ],
                    "spans": [
                        {
                            "offset": 28593,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "indicated that in animals of age years, numbers of",
                    "polygon": [
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                        4.1982,
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                        4.1982,
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                    ],
                    "spans": [
                        {
                            "offset": 28643,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "cemental and dentinal growth layer groups (GLG's)",
                    "polygon": [
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                        6.8655,
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                    "spans": [
                        {
                            "offset": 28694,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "in the teeth were equal. From comparison of known",
                    "polygon": [
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                        4.1838,
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                    ],
                    "spans": [
                        {
                            "offset": 28744,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "history, tetracycline marks and other biological in-",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 28794,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "formation, the implied incremental rate of deposi-",
                    "polygon": [
                        1.1797,
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                        4.1838,
                        7.3524,
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                    ],
                    "spans": [
                        {
                            "offset": 28847,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "tion is one GLG per year. The dentinal and",
                    "polygon": [
                        1.1749,
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                        4.1934,
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                        4.1934,
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                    "spans": [
                        {
                            "offset": 28898,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "cemental GLG's may therefore be used directly for",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 28941,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "age determination in years.",
                    "polygon": [
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                        2.8131,
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                    ],
                    "spans": [
                        {
                            "offset": 28991,
                            "length": 27
                        }
                    ]
                },
                {
                    "content": "In addition, teeth were available for each of 235",
                    "polygon": [
                        1.3468,
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                        4.1886,
                        8.1641,
                        4.1886,
                        8.3073,
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                    ],
                    "spans": [
                        {
                            "offset": 29019,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "northeast Atlantic long-finned pilot whales, and",
                    "polygon": [
                        1.1797,
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                    ],
                    "spans": [
                        {
                            "offset": 29069,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "duplicate teeth were examined for 10 of these. This",
                    "polygon": [
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                        4.1934,
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                    ],
                    "spans": [
                        {
                            "offset": 29118,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "sample comprised 91 whales captured on Septem-",
                    "polygon": [
                        1.1845,
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                    ],
                    "spans": [
                        {
                            "offset": 29170,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "ber 11, 1986, in the Faroese drive fishery at Sandur",
                    "polygon": [
                        1.1892,
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                    ],
                    "spans": [
                        {
                            "offset": 29217,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "on the island of Sandoy, at approximately 61°30'N,",
                    "polygon": [
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                        8.9757,
                        4.1886,
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                    ],
                    "spans": [
                        {
                            "offset": 29270,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "0°11'E, 36 whales stranded on August 21, 1982, at",
                    "polygon": [
                        1.1892,
                        9.1285,
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                        4.2077,
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                    ],
                    "spans": [
                        {
                            "offset": 29321,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "Rif in Iceland, at approximately 64°56'N, 23°50'W,",
                    "polygon": [
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                        4.1886,
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                    ],
                    "spans": [
                        {
                            "offset": 29371,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "and 108 whales stranded on October 26, 1986, at",
                    "polygon": [
                        1.1845,
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                    ],
                    "spans": [
                        {
                            "offset": 29422,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "Thorlakshofn in Iceland, at approximately 63º51'N,",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 29470,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "21°22'W. Comparison of duplicate teeth from the",
                    "polygon": [
                        1.1845,
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                        4.2029,
                        9.7826,
                        4.2029,
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                    ],
                    "spans": [
                        {
                            "offset": 29521,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "mandible of single individuals, revealed that",
                    "polygon": [
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                        4.4752,
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                    ],
                    "spans": [
                        {
                            "offset": 29569,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "GLG counts were similar and deposition patterns",
                    "polygon": [
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                        7.3217,
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                    ],
                    "spans": [
                        {
                            "offset": 29615,
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                        }
                    ]
                },
                {
                    "content": "and mineralization anomalies were consistent in",
                    "polygon": [
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                        1.2986,
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                    ],
                    "spans": [
                        {
                            "offset": 29663,
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                        }
                    ]
                },
                {
                    "content": "teeth from the same individual. This implies that",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 29711,
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                        }
                    ]
                },
                {
                    "content": "all teeth are potentially good for determining age",
                    "polygon": [
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                    "spans": [
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                            "offset": 29761,
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                        }
                    ]
                },
                {
                    "content": "and that deposition patterns are characteristic for",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 29812,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "the individual as well as being evidence of sys-",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 29864,
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                        }
                    ]
                },
                {
                    "content": "temic control.",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 29913,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Investigation of mineralization anomalies in",
                    "polygon": [
                        4.6423,
                        2.411,
                        7.3265,
                        2.411,
                        7.3265,
                        2.559,
                        4.6423,
                        2.559
                    ],
                    "spans": [
                        {
                            "offset": 29928,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "the teeth from captive whales (for which stressors",
                    "polygon": [
                        4.4752,
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                        2.5686,
                        7.3312,
                        2.7166,
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                    ],
                    "spans": [
                        {
                            "offset": 29973,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "could be identified) as well as in teeth from",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 30024,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "free-living northeast Atlantic long-finned pilot",
                    "polygon": [
                        4.4752,
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                    ],
                    "spans": [
                        {
                            "offset": 30070,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "whales indicated the following characteristics,",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 30119,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "previously described by Myrick (1988), for",
                    "polygon": [
                        4.4752,
                        3.194,
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                        7.3265,
                        3.342,
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                    ],
                    "spans": [
                        {
                            "offset": 30167,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "which they were scored in terms of occurrence",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 30210,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "by sex, current age, reproductive maturity, age",
                    "polygon": [
                        4.4752,
                        3.5139,
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                    ],
                    "spans": [
                        {
                            "offset": 30256,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "at which the anomaly appeared, and in which",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 30304,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "calendar year. These are 1) mineralization in-",
                    "polygon": [
                        4.4752,
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                    ],
                    "spans": [
                        {
                            "offset": 30348,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "terference: irregularities in the lamina formation",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 30395,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "emanating from differential inhibition/activation",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 30446,
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                        }
                    ]
                },
                {
                    "content": "of odontoblasts at the mineralization front (nor-",
                    "polygon": [
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                            "offset": 30496,
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                        }
                    ]
                },
                {
                    "content": "mally, the pulp cavity edge), causing realignment",
                    "polygon": [
                        4.4752,
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                    "spans": [
                        {
                            "offset": 30546,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "of the dentinal tubules and resulting in wavey",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 30596,
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                        }
                    ]
                },
                {
                    "content": "lines, swirls and asymmetry, which disrupt usual",
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                    "spans": [
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                            "length": 48
                        }
                    ]
                },
                {
                    "content": "patterns yet do not prevent continuous lamina",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 30692,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "formation; 2) dentinal resorption: actual erosion",
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                    ]
                },
                {
                    "content": "and frequent repair of existing regular laminated",
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                    ]
                },
                {
                    "content": "dentinal tissue, resulting in an amorphous and/or",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "globular appearance, frequently with holes, cut-",
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                    "content": "in dentine and often cementum: discrete laminae",
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                    "content": "which are regular yet noticeably different in ap-",
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                    "content": "ogy and affinity for stain.",
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                    "content": "Results of the scoring show that mineraliza-",
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                    "content": "tion interference increases with age reaching 60-",
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                    "content": "related to age rather than state of maturity.",
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                    "content": "Icelandic whales, and reaches ca 50% incidence",
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                    "content": "in Faroese whales. This is also age-and maturity-",
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                    "content": "not appear to greatly affect females until age 25",
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                    "confidence": 0.995,
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                    }
                },
                {
                    "content": "dolphins,",
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                },
                {
                    "content": "infrequent",
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                {
                    "content": "but",
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                },
                {
                    "content": "relatively",
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                },
                {
                    "content": "kills),",
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                    "content": "for",
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                {
                    "content": "dolphin",
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                {
                    "content": "groups",
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                },
                {
                    "content": "relatively",
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                    "confidence": 0.994,
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                    }
                },
                {
                    "content": "rare",
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                },
                {
                    "content": "and",
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                },
                {
                    "content": "heterogeneous",
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                    "confidence": 0.993,
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                    }
                },
                {
                    "content": "9",
                    "polygon": [
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                    "confidence": 0.992,
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            ],
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                {
                    "content": "Icelandic animals is <10% until age 25+ years",
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                    ]
                },
                {
                    "content": "when incidence rises from 20% to 40% in very old",
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                    ]
                },
                {
                    "content": "animals (30+ years). The difference in these levels",
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                },
                {
                    "content": "of incidence by location and sex could indicate",
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                    ]
                },
                {
                    "content": "varying degrees of susceptibility, perhaps genetical-",
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                },
                {
                    "content": "ly controlled, or could simply be a measure of local",
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                {
                    "content": "stress factors produced by the environment or",
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                },
                {
                    "content": "generated by behavioral traits within the school.",
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                },
                {
                    "content": "Could such circumstances, revealed in the teeth,",
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                },
                {
                    "content": "result in differential mortality and sex ratios? Pulp",
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                },
                {
                    "content": "stones, when present, tend to be associated with",
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                    "spans": [
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                            "offset": 32608,
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                    ]
                },
                {
                    "content": "age at which puberty usually occurs, and the in-",
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                },
                {
                    "content": "cidence does not greatly increase thereafter. Marker",
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                    "spans": [
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                },
                {
                    "content": "lines occur throughout life at all ages, after age one",
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                },
                {
                    "content": "year, regardless of state of maturity, and therefore,",
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                },
                {
                    "content": "as anticipated, incidence increases with age; calen-",
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                },
                {
                    "content": "dar year is also a significant factor for Icelandic",
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                },
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                    "content": "samples. In particular, the year 1960 is very",
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                },
                {
                    "content": "prominent for Iceland (both in Thorlakshofn and",
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                },
                {
                    "content": "Rif), when >40% teeth from whales which would",
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                },
                {
                    "content": "have been alive at that time exhibited a marker line.",
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                    ]
                },
                {
                    "content": "This year does not feature in the Faroese sample.",
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                },
                {
                    "content": "What may have caused this is not known, but a",
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                },
                {
                    "content": "future investigation of the environment at that time",
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                },
                {
                    "content": "may be worthwhile. Of particular interest is the",
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                },
                {
                    "content": "question that if factor(s) affecting two independent",
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                },
                {
                    "content": "groups of Icelandic whales did not influence the",
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                    ]
                },
                {
                    "content": "Faroese group, could these whales have originated",
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                    "spans": [
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                    ]
                },
                {
                    "content": "in separate regions and probably not mixed?",
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                    "spans": [
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                },
                {
                    "content": "Observations from the known-history captives",
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                    "spans": [
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                            "offset": 33561,
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                },
                {
                    "content": "indicate that likely stressors causing (directly or",
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                },
                {
                    "content": "indirectly) mineralization anomalies may include",
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                    ]
                },
                {
                    "content": "sexual maturation, pregnancy and/or parturition,",
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                },
                {
                    "content": "periods of starvation, as well as changes in health",
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                },
                {
                    "content": "and life style. Environmental as well as inherent",
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                    ]
                },
                {
                    "content": "physiological rhythms are likely to be key factors",
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                },
                {
                    "content": "worth investigating in the future.",
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                    ]
                },
                {
                    "content": "This study was facilitated by the co-operation of",
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                    ]
                },
                {
                    "content": "the Sea World Research Institute and Hubbs Marine",
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                    ]
                },
                {
                    "content": "Research Center, San Diego, for provision of",
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                    "spans": [
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                            "offset": 34044,
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                        }
                    ]
                },
                {
                    "content": "material and access to data on captive pilot whales.",
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                    ]
                },
                {
                    "content": "The provision of material and data on pilot whales",
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                },
                {
                    "content": "by the Marine Research Institute, Reykjavik,",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 34193,
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                    ]
                },
                {
                    "content": "Iceland, and also the Natural History Museum, Tor-",
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                    "spans": [
                        {
                            "offset": 34238,
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                        }
                    ]
                },
                {
                    "content": "shavn, Faroe Islands, are gratefully acknowledged.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 34289,
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                    ]
                },
                {
                    "content": "In particular, J. S. Leatherwood, J. Sigurjonsson",
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                    "spans": [
                        {
                            "offset": 34340,
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                        }
                    ]
                },
                {
                    "content": "and D. Bloch are thanked for their help. This study",
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                    "spans": [
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                },
                {
                    "content": "was funded by the U.S. Department of Commerce,",
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                    ],
                    "spans": [
                        {
                            "offset": 34442,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "Grant Award No: NA-88-ABH- 00040, while a resi-",
                    "polygon": [
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                        9.0223,
                        4.0635,
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                        {
                            "offset": 34489,
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                    ]
                },
                {
                    "content": "dent at the Southwest Fisheries Center, La Jolla,",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 34537,
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                        }
                    ]
                },
                {
                    "content": "California, where facilities were made available.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 34587,
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                        }
                    ]
                },
                {
                    "content": "Help from Priscilla Akin, Aleta Hohn and Al Myrick",
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                    "spans": [
                        {
                            "offset": 34637,
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                        }
                    ]
                },
                {
                    "content": "is greatly appreciated. (C. Lockyer, FTS 893-7090)",
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                    "spans": [
                        {
                            "offset": 34688,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "FISHERY DEPENDENT",
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                        1.1918,
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                    "spans": [
                        {
                            "offset": 34739,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "ASSESSMENT PROGRAM",
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                    "spans": [
                        {
                            "offset": 34757,
                            "length": 18
                        }
                    ]
                },
                {
                    "content": "Effects of Dolphin Group, Percent",
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                        {
                            "offset": 34776,
                            "length": 33
                        }
                    ]
                },
                {
                    "content": "Coverage, and Fleet Size on Estimates",
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                    ]
                },
                {
                    "content": "of Dolphin Mortality Derived From Tuna",
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                    ]
                },
                {
                    "content": "Vessel Observer Data.",
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                    "spans": [
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                    ]
                },
                {
                    "content": "Records of dolphins killed incidental to purse-",
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                    ]
                },
                {
                    "content": "seining for tuna by U.S. registered vessels fishing",
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                    ]
                },
                {
                    "content": "in the eastern tropical Pacific Ocean during",
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                            "offset": 35009,
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                    ]
                },
                {
                    "content": "1987, were analyzed to assess the effects of three",
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                    ]
                },
                {
                    "content": "factors on estimates of dolphin mortality in-",
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                    ]
                },
                {
                    "content": "curred by an entire fleet, when only a portion of",
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                },
                {
                    "content": "the fleet is actually observed. Data from 1987",
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                    ]
                },
                {
                    "content": "were used because this is the first year that nearly",
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                    ]
                },
                {
                    "content": "100% of trips carried observers. The three fac-",
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                },
                {
                    "content": "tors were 1) dolphin group, 2) percent coverage",
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                },
                {
                    "content": "(percent of fishing trips observed by scientific",
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                },
                {
                    "content": "technicians), and 3) fleet size. Estimates were",
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                    ]
                },
                {
                    "content": "derived using the ratio estimator (kill/day) for",
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                },
                {
                    "content": "eight dolphin groups (total dolphins, northern",
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                },
                {
                    "content": "offshore spotted dolphins, eastern spinner dol-",
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                },
                {
                    "content": "phins, whitebelly spinner dolphins, unidentified",
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                },
                {
                    "content": "spinner dolphins, common dolphins, striped dol-",
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                },
                {
                    "content": "phins, and other dolphins), for simulated fleet",
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                },
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                    "content": "sizes of 33, 20, 10 and 5 boats, and simulated",
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                },
                {
                    "content": "sampling levels of 25%, 33%, 50%, 75%, and",
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                },
                {
                    "content": "96% observer coverage.",
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                    ]
                },
                {
                    "content": "Four statistical aspects of these mortality es-",
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                },
                {
                    "content": "timates were investigated to assess the effects of",
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                    ]
                },
                {
                    "content": "the three factors named above, on the estimates:",
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                },
                {
                    "content": "1) relative bias of the estimate, 2) coefficient of",
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                },
                {
                    "content": "variation of the estimate, 3) frequency distribu-",
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                },
                {
                    "content": "tions of replicate estimates, and 4) 95% con-",
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                },
                {
                    "content": "fidence intervals of replicate estimates.",
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                },
                {
                    "content": "Mortality estimates and their statistical (sam-",
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                },
                {
                    "content": "pling) characteristics were affected in decreasing",
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                {
                    "content": "order of influence by dolphin group type, per-",
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                    "content": "cent coverage, and fleet size (Figures 1 and 2).",
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                {
                    "content": "The strongest control on estimates was the char-",
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                    "content": "acteristics of the data contributing to the es-",
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                {
                    "content": "timates; for groups with relatively frequent and",
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                },
                {
                    "content": "relatively similar kill/trip (e.g., total dolphins), a",
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                {
                    "content": "given level of accuracy and precision could be",
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                },
                {
                    "content": "achieved with relatively low percent coverage",
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                },
                {
                    "content": "even with relatively small fleets. Intermediate",
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                {
                    "content": "levels were adequate for groups with inter-",
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                },
                {
                    "content": "mediate data characteristics (e.g., whitebelly",
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                },
                {
                    "content": "spinner dolphins, with relatively infrequent but",
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                },
                {
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                        6.3272,
                        9.8685
                    ],
                    "confidence": 0.997,
                    "span": {
                        "offset": 40300,
                        "length": 7
                    }
                },
                {
                    "content": "fields",
                    "polygon": [
                        6.8735,
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                        7.1813,
                        9.716,
                        7.1811,
                        9.8629,
                        6.873,
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                    ],
                    "confidence": 0.996,
                    "span": {
                        "offset": 40308,
                        "length": 6
                    }
                },
                {
                    "content": "of",
                    "polygon": [
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                        7.2296,
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                    "confidence": 0.998,
                    "span": {
                        "offset": 40315,
                        "length": 2
                    }
                },
                {
                    "content": "10",
                    "polygon": [
                        4.1215,
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                        4.2934,
                        10.47,
                        4.2879,
                        10.6226,
                        4.1167,
                        10.6151
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                    "confidence": 0.999,
                    "span": {
                        "offset": 40318,
                        "length": 2
                    }
                },
                {
                    "content": "EZ",
                    "polygon": [
                        2.8702,
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                        3.0195,
                        2.4538,
                        3.0164,
                        2.5277,
                        2.8672,
                        2.5282
                    ],
                    "confidence": 0.098,
                    "span": {
                        "offset": 40321,
                        "length": 2
                    }
                },
                {
                    "content": "EASTERN",
                    "polygon": [
                        3.0872,
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                        3.4672,
                        2.45,
                        3.4642,
                        2.5271,
                        3.0842,
                        2.5275
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                    "confidence": 0.993,
                    "span": {
                        "offset": 40324,
                        "length": 7
                    }
                },
                {
                    "content": "SPINNER",
                    "polygon": [
                        3.4948,
                        2.4498,
                        3.8636,
                        2.4477,
                        3.8636,
                        2.5277,
                        3.4918,
                        2.5271
                    ],
                    "confidence": 0.994,
                    "span": {
                        "offset": 40332,
                        "length": 7
                    }
                }
            ],
            "lines": [
                {
                    "content": "kill/trip (e.g., common dolphins), much higher",
                    "polygon": [
                        1.108,
                        1.0217,
                        4.1263,
                        1.0169,
                        4.1263,
                        1.1649,
                        1.108,
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                    "spans": [
                        {
                            "offset": 37006,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "levels of coverage are required to achieve the same",
                    "polygon": [
                        1.108,
                        1.1888,
                        4.1263,
                        1.184,
                        4.1263,
                        1.3273,
                        1.108,
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                    "spans": [
                        {
                            "offset": 37053,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "level of accuracy and the level increases with",
                    "polygon": [
                        1.1175,
                        1.3559,
                        4.1215,
                        1.3464,
                        4.1215,
                        1.4896,
                        1.1175,
                        1.5039
                    ],
                    "spans": [
                        {
                            "offset": 37105,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "smaller fleets.",
                    "polygon": [
                        1.1175,
                        1.5278,
                        1.9246,
                        1.5278,
                        1.9246,
                        1.6519,
                        1.1175,
                        1.6519
                    ],
                    "spans": [
                        {
                            "offset": 37152,
                            "length": 15
                        }
                    ]
                },
                {
                    "content": "28",
                    "polygon": [
                        1.2417,
                        1.8763,
                        1.3277,
                        1.8811,
                        1.3277,
                        1.9479,
                        1.2369,
                        1.9431
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                    "spans": [
                        {
                            "offset": 37168,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "DOLPHIN GROUPS",
                    "polygon": [
                        2.8989,
                        1.9718,
                        3.8493,
                        1.967,
                        3.8493,
                        2.0673,
                        2.8989,
                        2.072
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                    "spans": [
                        {
                            "offset": 37171,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "26 -",
                    "polygon": [
                        1.2417,
                        2.0052,
                        1.385,
                        2.01,
                        1.385,
                        2.072,
                        1.2322,
                        2.0768
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                    "spans": [
                        {
                            "offset": 37186,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "24",
                    "polygon": [
                        1.2369,
                        2.1437,
                        1.3659,
                        2.1437,
                        1.3659,
                        2.2153,
                        1.2322,
                        2.2153
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                    "spans": [
                        {
                            "offset": 37191,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "TOTAL",
                    "polygon": [
                        3.0422,
                        2.1484,
                        3.3526,
                        2.1484,
                        3.3526,
                        2.2248,
                        3.0422,
                        2.2248
                    ],
                    "spans": [
                        {
                            "offset": 37194,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "22 -",
                    "polygon": [
                        1.2369,
                        2.2678,
                        1.385,
                        2.2773,
                        1.385,
                        2.3346,
                        1.2417,
                        2.3394
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                    "spans": [
                        {
                            "offset": 37200,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "NORTHERN OFFSHORE",
                    "polygon": [
                        3.0661,
                        2.2964,
                        4.0356,
                        2.2917,
                        4.0356,
                        2.3776,
                        3.0661,
                        2.3824
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                    "spans": [
                        {
                            "offset": 37205,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "20 -",
                    "polygon": [
                        1.2369,
                        2.4015,
                        1.385,
                        2.4063,
                        1.385,
                        2.4635,
                        1.2369,
                        2.4683
                    ],
                    "spans": [
                        {
                            "offset": 37223,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "RELATIVE BIAS (%)",
                    "polygon": [
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                        1.1128,
                        2.4253,
                        1.2178,
                        2.4253,
                        1.2083,
                        3.194
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                    "spans": [
                        {
                            "offset": 37228,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "18",
                    "polygon": [
                        1.2465,
                        2.5304,
                        1.3707,
                        2.5304,
                        1.3707,
                        2.602,
                        1.2465,
                        2.602
                    ],
                    "spans": [
                        {
                            "offset": 37246,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "COMMON",
                    "polygon": [
                        3.0756,
                        2.6068,
                        3.4863,
                        2.6068,
                        3.4863,
                        2.6784,
                        3.0756,
                        2.6832
                    ],
                    "spans": [
                        {
                            "offset": 37249,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "16",
                    "polygon": [
                        1.2513,
                        2.6641,
                        1.3659,
                        2.6688,
                        1.3659,
                        2.7309,
                        1.2513,
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                    ],
                    "spans": [
                        {
                            "offset": 37256,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "14",
                    "polygon": [
                        1.2465,
                        2.7977,
                        1.3277,
                        2.7977,
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                    "spans": [
                        {
                            "offset": 37259,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "12",
                    "polygon": [
                        1.2465,
                        2.9266,
                        1.3707,
                        2.9314,
                        1.3707,
                        2.9983,
                        1.2465,
                        2.9983
                    ],
                    "spans": [
                        {
                            "offset": 37262,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10 -",
                    "polygon": [
                        1.2465,
                        3.0651,
                        1.3754,
                        3.0699,
                        1.3754,
                        3.1272,
                        1.2465,
                        3.1319
                    ],
                    "spans": [
                        {
                            "offset": 37265,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "8 -",
                    "polygon": [
                        1.2799,
                        3.2036,
                        1.385,
                        3.2083,
                        1.385,
                        3.2561,
                        1.2799,
                        3.2609
                    ],
                    "spans": [
                        {
                            "offset": 37270,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "6",
                    "polygon": [
                        1.2799,
                        3.3325,
                        1.3324,
                        3.3372,
                        1.3324,
                        3.4041,
                        1.2799,
                        3.4041
                    ],
                    "spans": [
                        {
                            "offset": 37274,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "4 -",
                    "polygon": [
                        1.2847,
                        3.4661,
                        1.3802,
                        3.4709,
                        1.385,
                        3.5234,
                        1.2847,
                        3.533
                    ],
                    "spans": [
                        {
                            "offset": 37276,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "2",
                    "polygon": [
                        1.2751,
                        3.5951,
                        1.3468,
                        3.5951,
                        1.3563,
                        3.6667,
                        1.2751,
                        3.6667
                    ],
                    "spans": [
                        {
                            "offset": 37280,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
                        1.2847,
                        3.7335,
                        1.3468,
                        3.7335,
                        1.3516,
                        3.7956,
                        1.2847,
                        3.7956
                    ],
                    "spans": [
                        {
                            "offset": 37282,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
                        1.4948,
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                        1.533,
                        3.8242,
                        1.533,
                        3.8815,
                        1.4948,
                        3.8815
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                    "spans": [
                        {
                            "offset": 37284,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
                        1.7909,
                        3.8147,
                        1.8626,
                        3.8194,
                        1.8578,
                        3.8815,
                        1.7861,
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                    ],
                    "spans": [
                        {
                            "offset": 37286,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
                        2.0775,
                        3.8147,
                        2.1682,
                        3.8147,
                        2.1682,
                        3.8815,
                        2.0775,
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                    ],
                    "spans": [
                        {
                            "offset": 37289,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
                        2.4595,
                        3.7526,
                        2.4595,
                        3.8815,
                        2.407,
                        3.8815,
                        2.407,
                        3.7526
                    ],
                    "spans": [
                        {
                            "offset": 37292,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
                        2.7127,
                        3.8051,
                        2.7795,
                        3.8099,
                        2.7795,
                        3.872,
                        2.7079,
                        3.872
                    ],
                    "spans": [
                        {
                            "offset": 37295,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
                        3.0135,
                        3.8051,
                        3.0995,
                        3.8099,
                        3.0995,
                        3.8815,
                        3.0088,
                        3.8767
                    ],
                    "spans": [
                        {
                            "offset": 37298,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
                        3.3383,
                        3.8051,
                        3.3908,
                        3.8099,
                        3.386,
                        3.8767,
                        3.3383,
                        3.872
                    ],
                    "spans": [
                        {
                            "offset": 37301,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
                        3.6439,
                        3.8051,
                        3.7203,
                        3.8051,
                        3.7156,
                        3.872,
                        3.6392,
                        3.872
                    ],
                    "spans": [
                        {
                            "offset": 37303,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
                        3.9305,
                        3.8051,
                        4.026,
                        3.8051,
                        4.026,
                        3.872,
                        3.9305,
                        3.872
                    ],
                    "spans": [
                        {
                            "offset": 37306,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "25% COVERAGE",
                    "polygon": [
                        1.5187,
                        3.9961,
                        2.1109,
                        3.9913,
                        2.1157,
                        4.0677,
                        1.5187,
                        4.0725
                    ],
                    "spans": [
                        {
                            "offset": 37309,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "50% COVERAGE",
                    "polygon": [
                        2.4404,
                        3.9865,
                        3.0374,
                        3.9865,
                        3.0374,
                        4.0629,
                        2.4404,
                        4.0677
                    ],
                    "spans": [
                        {
                            "offset": 37322,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "75% COVERAGE",
                    "polygon": [
                        3.3717,
                        3.9818,
                        3.9639,
                        3.977,
                        3.9687,
                        4.0582,
                        3.3717,
                        4.0677
                    ],
                    "spans": [
                        {
                            "offset": 37335,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "FLEET SIZE (5,10,20)",
                    "polygon": [
                        2.3115,
                        4.1107,
                        3.152,
                        4.1107,
                        3.1473,
                        4.2157,
                        2.3115,
                        4.2109
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                    "spans": [
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                            "offset": 37348,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "Figure 1. Relative bias in estimates of annual dol-",
                    "polygon": [
                        1.2942,
                        4.3924,
                        3.9926,
                        4.3828,
                        3.9926,
                        4.5069,
                        1.2942,
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                    "spans": [
                        {
                            "offset": 37369,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "phin mortality. The first three sets of columns show",
                    "polygon": [
                        1.299,
                        4.5404,
                        3.9973,
                        4.5308,
                        4.0021,
                        4.6549,
                        1.299,
                        4.6693
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                    "spans": [
                        {
                            "offset": 37421,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "results for 25% coverage, the next three sets show",
                    "polygon": [
                        1.3038,
                        4.6836,
                        4.0021,
                        4.6788,
                        4.0021,
                        4.7982,
                        1.3038,
                        4.8125
                    ],
                    "spans": [
                        {
                            "offset": 37474,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "results for 50% coverage, and the last three sets",
                    "polygon": [
                        1.3038,
                        4.822,
                        4.0021,
                        4.8173,
                        4.0021,
                        4.9462,
                        1.3038,
                        4.951
                    ],
                    "spans": [
                        {
                            "offset": 37525,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "show results for 75% coverage.",
                    "polygon": [
                        1.3038,
                        4.9701,
                        2.9658,
                        4.9748,
                        2.961,
                        5.099,
                        1.3038,
                        5.0942
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                    "spans": [
                        {
                            "offset": 37575,
                            "length": 30
                        }
                    ]
                },
                {
                    "content": "120",
                    "polygon": [
                        1.2369,
                        5.3281,
                        1.3754,
                        5.3281,
                        1.3754,
                        5.3997,
                        1.2369,
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                    "spans": [
                        {
                            "offset": 37606,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "DOLPHIN GROUPS",
                    "polygon": [
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                        5.3997,
                        3.9735,
                        5.3997,
                        3.9735,
                        5.5,
                        3.0279,
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                    "spans": [
                        {
                            "offset": 37610,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "110",
                    "polygon": [
                        1.2417,
                        5.4809,
                        1.385,
                        5.4857,
                        1.3802,
                        5.5573,
                        1.2417,
                        5.5573
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                    "spans": [
                        {
                            "offset": 37625,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "TOTAL",
                    "polygon": [
                        3.0947,
                        5.5668,
                        3.3478,
                        5.5716,
                        3.3478,
                        5.648,
                        3.0947,
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                    "spans": [
                        {
                            "offset": 37629,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "100",
                    "polygon": [
                        1.2417,
                        5.6385,
                        1.3802,
                        5.6337,
                        1.3802,
                        5.7053,
                        1.2417,
                        5.7101
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                    "spans": [
                        {
                            "offset": 37635,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "NORTHERN OFFSHORE",
                    "polygon": [
                        3.0899,
                        5.7148,
                        4.0499,
                        5.7101,
                        4.0499,
                        5.796,
                        3.0899,
                        5.8008
                    ],
                    "spans": [
                        {
                            "offset": 37639,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "90 -",
                    "polygon": [
                        1.2799,
                        5.796,
                        1.4232,
                        5.8056,
                        1.4232,
                        5.8581,
                        1.2799,
                        5.8581
                    ],
                    "spans": [
                        {
                            "offset": 37657,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "EASTERN SPINNER",
                    "polygon": [
                        3.195,
                        5.8628,
                        3.9735,
                        5.8628,
                        3.9735,
                        5.944,
                        3.195,
                        5.9488
                    ],
                    "spans": [
                        {
                            "offset": 37662,
                            "length": 15
                        }
                    ]
                },
                {
                    "content": "80 -",
                    "polygon": [
                        1.2799,
                        5.9488,
                        1.4232,
                        5.9536,
                        1.4232,
                        6.0109,
                        1.2751,
                        6.0109
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                    "spans": [
                        {
                            "offset": 37678,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "COMMON",
                    "polygon": [
                        3.1902,
                        6.0156,
                        3.601,
                        6.0156,
                        3.601,
                        6.092,
                        3.1902,
                        6.0968
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                    "spans": [
                        {
                            "offset": 37683,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "70 -",
                    "polygon": [
                        1.2847,
                        6.1016,
                        1.4184,
                        6.1063,
                        1.4184,
                        6.1636,
                        1.2847,
                        6.1684
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                    "spans": [
                        {
                            "offset": 37690,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "CV (%)",
                    "polygon": [
                        1.1605,
                        6.4167,
                        1.1605,
                        6.1254,
                        1.2513,
                        6.1254,
                        1.2513,
                        6.4167
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                    "spans": [
                        {
                            "offset": 37695,
                            "length": 6
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                    ]
                },
                {
                    "content": "60 -",
                    "polygon": [
                        1.2942,
                        6.2543,
                        1.4232,
                        6.2639,
                        1.4232,
                        6.3212,
                        1.2895,
                        6.3164
                    ],
                    "spans": [
                        {
                            "offset": 37702,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "50",
                    "polygon": [
                        1.2895,
                        6.4119,
                        1.3707,
                        6.4119,
                        1.3707,
                        6.4692,
                        1.2895,
                        6.4692
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                    "spans": [
                        {
                            "offset": 37707,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "40 -",
                    "polygon": [
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                        6.5599,
                        1.4232,
                        6.6267,
                        1.2847,
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                    "spans": [
                        {
                            "offset": 37710,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "30 -",
                    "polygon": [
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                        1.4232,
                        6.7747,
                        1.2847,
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                    "spans": [
                        {
                            "offset": 37715,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 37720,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "--",
                    "polygon": [
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                        3.4099,
                        7.0039,
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                    "spans": [
                        {
                            "offset": 37723,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10 -",
                    "polygon": [
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                        1.4375,
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                    "spans": [
                        {
                            "offset": 37726,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 37731,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
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                    "spans": [
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                            "offset": 37733,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                            "offset": 37736,
                            "length": 2
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                    ]
                },
                {
                    "content": "20",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 37739,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 37742,
                            "length": 1
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                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                        {
                            "offset": 37744,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
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                        7.2569,
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                        3.047,
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                    "spans": [
                        {
                            "offset": 37747,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 37750,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 37752,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
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                        7.2522,
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                    "spans": [
                        {
                            "offset": 37755,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "25% COVERAGE",
                    "polygon": [
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                        7.4336,
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                    "spans": [
                        {
                            "offset": 37758,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "50% COVERAGE",
                    "polygon": [
                        2.4834,
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                    "spans": [
                        {
                            "offset": 37771,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "75% COVERAGE",
                    "polygon": [
                        3.4099,
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                    "spans": [
                        {
                            "offset": 37784,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "FLEET SIZE (5,10,20)",
                    "polygon": [
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                            "length": 20
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                    ]
                },
                {
                    "content": "Figure 2. Coefficients of variation for estimates of",
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                        4.026,
                        7.806,
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                    "spans": [
                        {
                            "offset": 37818,
                            "length": 52
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                    ]
                },
                {
                    "content": "annual mortality. The first three sets of columns",
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                    "spans": [
                        {
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                            "length": 49
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                    ]
                },
                {
                    "content": "show results for 25% coverage, the next three sets",
                    "polygon": [
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                        4.0308,
                        8.0972,
                        4.0308,
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                    "spans": [
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                            "offset": 37921,
                            "length": 50
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                    ]
                },
                {
                    "content": "show results for 50% coverage, and the last three",
                    "polygon": [
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                        8.2405,
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                    ]
                },
                {
                    "content": "sets show results for 75% coverage.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38022,
                            "length": 35
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                    ]
                },
                {
                    "content": "As specific examples, coefficient of variations",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38058,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "(CVs) 20% or less could be achieved for estimates",
                    "polygon": [
                        1.1844,
                        8.8372,
                        4.1979,
                        8.8372,
                        4.1979,
                        8.9805,
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                        {
                            "offset": 38106,
                            "length": 49
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                    ]
                },
                {
                    "content": "of total annual mortality given 25% coverage of a",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38156,
                            "length": 49
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                    ]
                },
                {
                    "content": "fleet of 20 boats, or 50% coverage of a fleet as small",
                    "polygon": [
                        1.1844,
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                    "spans": [
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                            "offset": 38206,
                            "length": 54
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                    ]
                },
                {
                    "content": "as 5 boats. CVs of 20% or less for whitebelly",
                    "polygon": [
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                    "spans": [
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                            "offset": 38261,
                            "length": 45
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                    ]
                },
                {
                    "content": "spinner dolphins required coverages of at least 75%",
                    "polygon": [
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                    "spans": [
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                            "offset": 38307,
                            "length": 51
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                    ]
                },
                {
                    "content": "for a fleet of 5 boats, and at least 50% for fleets of",
                    "polygon": [
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                    "spans": [
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                            "offset": 38359,
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                    ]
                },
                {
                    "content": "20 boats. CVs of 20% or less could not be achieved",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38414,
                            "length": 50
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                    ]
                },
                {
                    "content": "for estimates of common dolphin annual mor-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38465,
                            "length": 43
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                    ]
                },
                {
                    "content": "tality with coverages less than 100%, at any fleet",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38509,
                            "length": 50
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                    ]
                },
                {
                    "content": "size.",
                    "polygon": [
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                            "offset": 38560,
                            "length": 5
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                    ]
                },
                {
                    "content": "Because neither fleet size nor dolphin group",
                    "polygon": [
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                    "spans": [
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                            "offset": 38566,
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                    ]
                },
                {
                    "content": "type can be controlled by a sampling program,",
                    "polygon": [
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                    "spans": [
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                            "offset": 38611,
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                    ]
                },
                {
                    "content": "the only alternative available to achieve given",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38657,
                            "length": 47
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                    ]
                },
                {
                    "content": "levels of accuracy and precision in estimates of",
                    "polygon": [
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                        7.2974,
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                    "spans": [
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                            "offset": 38705,
                            "length": 48
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                    ]
                },
                {
                    "content": "dolphin mortality is to manipulate the level of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38754,
                            "length": 47
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                    ]
                },
                {
                    "content": "observer coverage. To protect equally all",
                    "polygon": [
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                        2.4158,
                        7.2926,
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                        4.4367,
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                    "spans": [
                        {
                            "offset": 38802,
                            "length": 41
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                    ]
                },
                {
                    "content": "groups, it would be necessary to use the level",
                    "polygon": [
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                            "offset": 38844,
                            "length": 46
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                    ]
                },
                {
                    "content": "required for those dolphin groups characterized",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38891,
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                    ]
                },
                {
                    "content": "by the \"messiest\" data. (E. Edwards, FTS 893-",
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                    "spans": [
                        {
                            "offset": 38939,
                            "length": 45
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                    ]
                },
                {
                    "content": "7099)",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38985,
                            "length": 5
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                    ]
                },
                {
                    "content": "Environmental Variability in the Eastern",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 38991,
                            "length": 40
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                    ]
                },
                {
                    "content": "Tropical Pacific, 1986-1988",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39032,
                            "length": 27
                        }
                    ]
                },
                {
                    "content": "Oceanographer Paul Fiedler reports that large",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39060,
                            "length": 45
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                    ]
                },
                {
                    "content": "interannual changes in the eastern tropical",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39106,
                            "length": 43
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                    ]
                },
                {
                    "content": "Pacific (ETP) are evident in environmental data",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39150,
                            "length": 47
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                    ]
                },
                {
                    "content": "collected on MOPS dolphin stock assessment",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39198,
                            "length": 42
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                    ]
                },
                {
                    "content": "cruises since 1986 (August-November, NOAA",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39241,
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                    ]
                },
                {
                    "content": "Ships McArthur and David Starr Jordan). A",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39283,
                            "length": 41
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                    ]
                },
                {
                    "content": "smoothed time series of the Southern Oscillation",
                    "polygon": [
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                    "spans": [
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                            "offset": 39325,
                            "length": 48
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                    ]
                },
                {
                    "content": "Index (Figure 3) shows that a moderate El Niño",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "occurred in 1987. In 1988, this El Niño was",
                    "polygon": [
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                    ]
                },
                {
                    "content": "followed by a cold-water event (\"La Niña\"). As",
                    "polygon": [
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                    "spans": [
                        {
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                    ]
                },
                {
                    "content": "an illustration of the extreme environmental",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 39512,
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                    ]
                },
                {
                    "content": "variability observed during the first 3 years of",
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                    "spans": [
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                    ]
                },
                {
                    "content": "MOPS, the range of SOI during 1986-1988 ex-",
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                    ]
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                    "content": "April",
                    "polygon": [
                        6.6554,
                        9.6154,
                        6.9431,
                        9.6186,
                        6.9404,
                        9.7723,
                        6.653,
                        9.7695
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                    "confidence": 0.996,
                    "span": {
                        "offset": 43742,
                        "length": 5
                    }
                },
                {
                    "content": "2-7,",
                    "polygon": [
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                        9.6192,
                        7.236,
                        9.6225,
                        7.236,
                        9.775,
                        6.9811,
                        9.7727
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                    "confidence": 0.99,
                    "span": {
                        "offset": 43748,
                        "length": 4
                    }
                },
                {
                    "content": "1989.",
                    "polygon": [
                        4.3972,
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                        4.7344,
                        9.7643,
                        4.7314,
                        9.9106,
                        4.3941,
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                    "confidence": 0.995,
                    "span": {
                        "offset": 43753,
                        "length": 5
                    }
                },
                {
                    "content": "Conference",
                    "polygon": [
                        4.8115,
                        9.7651,
                        5.5005,
                        9.7714,
                        5.4975,
                        9.9246,
                        4.8085,
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                    ],
                    "confidence": 0.994,
                    "span": {
                        "offset": 43759,
                        "length": 10
                    }
                },
                {
                    "content": "participants",
                    "polygon": [
                        5.5295,
                        9.7717,
                        6.2281,
                        9.7772,
                        6.2251,
                        9.9285,
                        5.5264,
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                    ],
                    "confidence": 0.993,
                    "span": {
                        "offset": 43770,
                        "length": 12
                    }
                },
                {
                    "content": "from",
                    "polygon": [
                        6.2618,
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                        6.5437,
                        9.7794,
                        6.5407,
                        9.9275,
                        6.2588,
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                    "confidence": 0.992,
                    "span": {
                        "offset": 43783,
                        "length": 4
                    }
                },
                {
                    "content": "all",
                    "polygon": [
                        6.575,
                        9.7796,
                        6.7099,
                        9.7805,
                        6.7069,
                        9.9262,
                        6.572,
                        9.9272
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                    "confidence": 0.997,
                    "span": {
                        "offset": 43788,
                        "length": 3
                    }
                },
                {
                    "content": "over",
                    "polygon": [
                        6.7461,
                        9.7807,
                        7.0135,
                        9.7823,
                        7.0105,
                        9.9226,
                        6.7431,
                        9.926
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                    "confidence": 0.992,
                    "span": {
                        "offset": 43792,
                        "length": 4
                    }
                },
                {
                    "content": "the",
                    "polygon": [
                        7.0448,
                        9.7825,
                        7.2455,
                        9.7835,
                        7.2455,
                        9.9193,
                        7.0418,
                        9.9222
                    ],
                    "confidence": 0.999,
                    "span": {
                        "offset": 43797,
                        "length": 3
                    }
                },
                {
                    "content": "11",
                    "polygon": [
                        3.9918,
                        10.4522,
                        4.1218,
                        10.4522,
                        4.1239,
                        10.56,
                        3.9918,
                        10.5624
                    ],
                    "confidence": 0.998,
                    "span": {
                        "offset": 43801,
                        "length": 2
                    }
                }
            ],
            "lines": [
                {
                    "content": "surface temperature and depth of the 20℃",
                    "polygon": [
                        1.0782,
                        0.9489,
                        4.1068,
                        0.9489,
                        4.1068,
                        1.1022,
                        1.0782,
                        1.1022
                    ],
                    "spans": [
                        {
                            "offset": 40340,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "isotherm (thermocline depth).",
                    "polygon": [
                        1.0926,
                        1.1118,
                        2.8656,
                        1.1166,
                        2.8656,
                        1.2604,
                        1.0926,
                        1.2556
                    ],
                    "spans": [
                        {
                            "offset": 40381,
                            "length": 29
                        }
                    ]
                },
                {
                    "content": "During August-November 1986, we observed",
                    "polygon": [
                        1.2507,
                        1.4233,
                        4.102,
                        1.4281,
                        4.102,
                        1.5767,
                        1.2507,
                        1.5767
                    ],
                    "spans": [
                        {
                            "offset": 40411,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "surface temperature anomalies of 0 to +2℃ in the",
                    "polygon": [
                        1.083,
                        1.5911,
                        4.1068,
                        1.5911,
                        4.1068,
                        1.7301,
                        1.083,
                        1.7301
                    ],
                    "spans": [
                        {
                            "offset": 40452,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "ETP, with the warmest anomalies in the equatorial",
                    "polygon": [
                        1.0878,
                        1.7396,
                        4.102,
                        1.7492,
                        4.102,
                        1.893,
                        1.0878,
                        1.8834
                    ],
                    "spans": [
                        {
                            "offset": 40501,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "cold tongue west of 105°W. The equatorial ther-",
                    "polygon": [
                        1.083,
                        1.8978,
                        4.0924,
                        1.9026,
                        4.0924,
                        2.0464,
                        1.083,
                        2.0416
                    ],
                    "spans": [
                        {
                            "offset": 40551,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "mocline ridge was anomalously deep and displaced",
                    "polygon": [
                        1.083,
                        2.0559,
                        4.0972,
                        2.0607,
                        4.0924,
                        2.2141,
                        1.0782,
                        2.1997
                    ],
                    "spans": [
                        {
                            "offset": 40599,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "to the south. In 1987, surface temperature",
                    "polygon": [
                        1.0782,
                        2.2093,
                        4.0924,
                        2.2237,
                        4.0924,
                        2.3674,
                        1.0782,
                        2.3483
                    ],
                    "spans": [
                        {
                            "offset": 40648,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "anomalies were at least +1℃ throughout most of",
                    "polygon": [
                        1.0782,
                        2.3674,
                        4.102,
                        2.3722,
                        4.102,
                        2.5208,
                        1.0782,
                        2.516
                    ],
                    "spans": [
                        {
                            "offset": 40691,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "our study area and +2 to +3℃ in the equatorial",
                    "polygon": [
                        1.0782,
                        2.5256,
                        4.102,
                        2.5256,
                        4.102,
                        2.6789,
                        1.0782,
                        2.6742
                    ],
                    "spans": [
                        {
                            "offset": 40738,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "cold tongue. The depth and position of the",
                    "polygon": [
                        1.0734,
                        2.6789,
                        4.0924,
                        2.6789,
                        4.0924,
                        2.8419,
                        1.0734,
                        2.8371
                    ],
                    "spans": [
                        {
                            "offset": 40785,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "equatorial ridge were closer to normal, but the",
                    "polygon": [
                        1.0782,
                        2.8419,
                        4.0972,
                        2.8467,
                        4.0972,
                        2.9905,
                        1.0782,
                        2.9857
                    ],
                    "spans": [
                        {
                            "offset": 40828,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "thermocline ridge at 10°N, between the North",
                    "polygon": [
                        1.083,
                        2.9952,
                        4.1068,
                        2.9952,
                        4.1068,
                        3.1438,
                        1.083,
                        3.1438
                    ],
                    "spans": [
                        {
                            "offset": 40876,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "Equatorial Countercurrent and the North",
                    "polygon": [
                        1.0734,
                        3.1486,
                        4.0924,
                        3.1486,
                        4.0924,
                        3.302,
                        1.0734,
                        3.2972
                    ],
                    "spans": [
                        {
                            "offset": 40921,
                            "length": 39
                        }
                    ]
                },
                {
                    "content": "Equatorial Current, was weaker than in 1986.",
                    "polygon": [
                        1.0782,
                        3.302,
                        4.078,
                        3.3067,
                        4.078,
                        3.4553,
                        1.0782,
                        3.4505
                    ],
                    "spans": [
                        {
                            "offset": 40961,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "These anomalies indicate changes in currents and",
                    "polygon": [
                        1.083,
                        3.4601,
                        4.0876,
                        3.4697,
                        4.0876,
                        3.6183,
                        1.083,
                        3.6039
                    ],
                    "spans": [
                        {
                            "offset": 41006,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "water mass distribution associated with El Niño. In",
                    "polygon": [
                        1.0782,
                        3.6183,
                        4.0876,
                        3.623,
                        4.0876,
                        3.7668,
                        1.0782,
                        3.762
                    ],
                    "spans": [
                        {
                            "offset": 41055,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "1988, the equatorial cold tongue was as much as",
                    "polygon": [
                        1.0782,
                        3.7716,
                        4.0924,
                        3.7812,
                        4.0924,
                        3.9298,
                        1.0782,
                        3.9154
                    ],
                    "spans": [
                        {
                            "offset": 41107,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "3℃ colder than normal, but surface temperatures",
                    "polygon": [
                        1.0782,
                        3.925,
                        4.0876,
                        3.9393,
                        4.0876,
                        4.0879,
                        1.0782,
                        4.0687
                    ],
                    "spans": [
                        {
                            "offset": 41155,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "north of the equator were generally within 1℃ of",
                    "polygon": [
                        1.0686,
                        4.0879,
                        4.0924,
                        4.0879,
                        4.0924,
                        4.2413,
                        1.0686,
                        4.2365
                    ],
                    "spans": [
                        {
                            "offset": 41203,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "normal. The equatorial ridge had shoaled, indicat-",
                    "polygon": [
                        1.0686,
                        4.2413,
                        4.0828,
                        4.2461,
                        4.0828,
                        4.3994,
                        1.0686,
                        4.3898
                    ],
                    "spans": [
                        {
                            "offset": 41252,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "ing a strengthened South Equatorial Current.",
                    "polygon": [
                        1.0686,
                        4.3994,
                        3.7665,
                        4.3946,
                        3.7665,
                        4.5528,
                        1.0686,
                        4.5528
                    ],
                    "spans": [
                        {
                            "offset": 41303,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
                        1.2076,
                        4.7397,
                        1.198,
                        4.8739,
                        1.1453,
                        4.8739,
                        1.1453,
                        4.7397
                    ],
                    "spans": [
                        {
                            "offset": 41348,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
                        1.198,
                        4.9266,
                        1.198,
                        5.0656,
                        1.1405,
                        5.0656,
                        1.1405,
                        4.9266
                    ],
                    "spans": [
                        {
                            "offset": 41351,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
                        1.2028,
                        5.2237,
                        1.198,
                        5.3004,
                        1.1453,
                        5.2956,
                        1.1501,
                        5.2189
                    ],
                    "spans": [
                        {
                            "offset": 41354,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "Latitude",
                    "polygon": [
                        1.1501,
                        5.3819,
                        1.1309,
                        5.6071,
                        1.0782,
                        5.6023,
                        1.0974,
                        5.3819
                    ],
                    "spans": [
                        {
                            "offset": 41357,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
                        1.1932,
                        5.4729,
                        1.1932,
                        5.5065,
                        1.1501,
                        5.5112,
                        1.1453,
                        5.4729
                    ],
                    "spans": [
                        {
                            "offset": 41366,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "O",
                    "polygon": [
                        1.1549,
                        5.7125,
                        1.1932,
                        5.7125,
                        1.198,
                        5.7557,
                        1.1501,
                        5.7509
                    ],
                    "spans": [
                        {
                            "offset": 41368,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "-5",
                    "polygon": [
                        1.1932,
                        5.9426,
                        1.1884,
                        6.0144,
                        1.1453,
                        6.0144,
                        1.1453,
                        5.9426
                    ],
                    "spans": [
                        {
                            "offset": 41370,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
                        1.3274,
                        6.0863,
                        1.5239,
                        6.0911,
                        1.5239,
                        6.1534,
                        1.3274,
                        6.1582
                    ],
                    "spans": [
                        {
                            "offset": 41373,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "-10 20",
                    "polygon": [
                        1.198,
                        6.1534,
                        1.198,
                        6.4026,
                        1.1357,
                        6.4026,
                        1.1405,
                        6.1534
                    ],
                    "spans": [
                        {
                            "offset": 41378,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "35",
                    "polygon": [
                        1.2076,
                        6.2445,
                        1.2747,
                        6.2445,
                        1.2747,
                        6.2972,
                        1.2076,
                        6.2972
                    ],
                    "spans": [
                        {
                            "offset": 41385,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "130",
                    "polygon": [
                        1.4232,
                        6.2445,
                        1.5143,
                        6.2493,
                        1.5095,
                        6.302,
                        1.4232,
                        6.302
                    ],
                    "spans": [
                        {
                            "offset": 41388,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "125",
                    "polygon": [
                        1.658,
                        6.2445,
                        1.7922,
                        6.2445,
                        1.7874,
                        6.3068,
                        1.658,
                        6.3116
                    ],
                    "spans": [
                        {
                            "offset": 41392,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "120",
                    "polygon": [
                        1.8833,
                        6.2445,
                        1.9887,
                        6.2493,
                        1.9887,
                        6.3116,
                        1.8833,
                        6.3116
                    ],
                    "spans": [
                        {
                            "offset": 41396,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "115",
                    "polygon": [
                        2.1229,
                        6.2445,
                        2.2331,
                        6.2493,
                        2.2331,
                        6.3068,
                        2.1229,
                        6.3116
                    ],
                    "spans": [
                        {
                            "offset": 41400,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "110 105",
                    "polygon": [
                        2.3625,
                        6.2445,
                        2.789,
                        6.2445,
                        2.789,
                        6.3212,
                        2.3625,
                        6.3116
                    ],
                    "spans": [
                        {
                            "offset": 41404,
                            "length": 7
                        }
                    ]
                },
                {
                    "content": "100 ___ 95",
                    "polygon": [
                        2.8369,
                        6.2445,
                        3.1723,
                        6.2445,
                        3.1723,
                        6.326,
                        2.8369,
                        6.326
                    ],
                    "spans": [
                        {
                            "offset": 41412,
                            "length": 10
                        }
                    ]
                },
                {
                    "content": "90",
                    "polygon": [
                        3.3209,
                        6.2493,
                        3.4071,
                        6.2541,
                        3.4119,
                        6.3212,
                        3.3161,
                        6.3164
                    ],
                    "spans": [
                        {
                            "offset": 41423,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "85",
                    "polygon": [
                        3.5749,
                        6.2541,
                        3.6419,
                        6.2541,
                        3.6419,
                        6.3116,
                        3.5701,
                        6.3116
                    ],
                    "spans": [
                        {
                            "offset": 41426,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "80",
                    "polygon": [
                        3.8145,
                        6.2541,
                        3.8815,
                        6.2589,
                        3.8815,
                        6.3164,
                        3.8097,
                        6.3164
                    ],
                    "spans": [
                        {
                            "offset": 41429,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "75",
                    "polygon": [
                        4.0445,
                        6.2541,
                        4.1211,
                        6.2541,
                        4.1259,
                        6.3212,
                        4.0397,
                        6.3212
                    ],
                    "spans": [
                        {
                            "offset": 41432,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
                        1.1932,
                        6.5416,
                        1.1884,
                        6.6135,
                        1.1453,
                        6.6087,
                        1.1453,
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                    ],
                    "spans": [
                        {
                            "offset": 41435,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
                        1.1932,
                        6.7764,
                        1.1932,
                        6.8579,
                        1.1357,
                        6.8579,
                        1.1405,
                        6.7764
                    ],
                    "spans": [
                        {
                            "offset": 41438,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "Latitude",
                    "polygon": [
                        1.1309,
                        6.9442,
                        1.1357,
                        7.1646,
                        1.0782,
                        7.1646,
                        1.0782,
                        6.9442
                    ],
                    "spans": [
                        {
                            "offset": 41441,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
                        1.1836,
                        7.0209,
                        1.1836,
                        7.0784,
                        1.1405,
                        7.0832,
                        1.1405,
                        7.0209
                    ],
                    "spans": [
                        {
                            "offset": 41450,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
                        1.1453,
                        7.2701,
                        1.1884,
                        7.2701,
                        1.1884,
                        7.3084,
                        1.1405,
                        7.3084
                    ],
                    "spans": [
                        {
                            "offset": 41452,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "-5",
                    "polygon": [
                        1.1932,
                        7.4378,
                        1.1932,
                        7.5816,
                        1.1357,
                        7.5864,
                        1.1357,
                        7.4378
                    ],
                    "spans": [
                        {
                            "offset": 41454,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
                        1.3178,
                        7.6487,
                        1.5047,
                        7.6487,
                        1.5047,
                        7.7205,
                        1.3178,
                        7.7205
                    ],
                    "spans": [
                        {
                            "offset": 41457,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "-10 20",
                    "polygon": [
                        1.1884,
                        7.6582,
                        1.1884,
                        7.9554,
                        1.1309,
                        7.9554,
                        1.1357,
                        7.6582
                    ],
                    "spans": [
                        {
                            "offset": 41462,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "35",
                    "polygon": [
                        1.198,
                        7.7972,
                        1.2747,
                        7.802,
                        1.2747,
                        7.8595,
                        1.1932,
                        7.8595
                    ],
                    "spans": [
                        {
                            "offset": 41469,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "1.30",
                    "polygon": [
                        1.4184,
                        7.802,
                        1.5095,
                        7.8068,
                        1.5095,
                        7.8643,
                        1.4232,
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                    "content": "125",
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                    "content": "110",
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                    "content": "105",
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                {
                    "content": "100",
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                    "content": "95",
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                {
                    "content": "90",
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                    "content": "85",
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                    ]
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                    "content": "80",
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                    ]
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                {
                    "content": "75",
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                    ]
                },
                {
                    "content": "15",
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                {
                    "content": "0,5",
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                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                },
                {
                    "content": "Latitude",
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                    "content": "5",
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                },
                {
                    "content": "0",
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                    ]
                },
                {
                    "content": "-5",
                    "polygon": [
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                    ]
                },
                {
                    "content": "1988",
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                    ]
                },
                {
                    "content": "5,35",
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                    ]
                },
                {
                    "content": "130",
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                    ]
                },
                {
                    "content": "125",
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                            "offset": 41556,
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                },
                {
                    "content": "120",
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                    ]
                },
                {
                    "content": "115",
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                    ]
                },
                {
                    "content": "110",
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                    ]
                },
                {
                    "content": "105",
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                    ]
                },
                {
                    "content": "100",
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                            "length": 3
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                    ]
                },
                {
                    "content": "95",
                    "polygon": [
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                },
                {
                    "content": "90",
                    "polygon": [
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                    ]
                },
                {
                    "content": "85",
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                    ]
                },
                {
                    "content": "80",
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                    ]
                },
                {
                    "content": "75",
                    "polygon": [
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                },
                {
                    "content": "Longitude",
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                },
                {
                    "content": "Figure 4. Surface chlorophyll values (mg m~3) ob-",
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                },
                {
                    "content": "served during MOPS cruises in August-November",
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                },
                {
                    "content": "Surface chlorophyll data show a major",
                    "polygon": [
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                {
                    "content": "biological response to the 1986-1988 environ-",
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                },
                {
                    "content": "mental variability (Figure 4). Although no",
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                    ]
                },
                {
                    "content": "climatology exists for chlorophyll, the 1986",
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                },
                {
                    "content": "values appear \"normal\" compared to 1967",
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                },
                {
                    "content": "EASTROPAC results. Equatorial upwelling sus-",
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                    ]
                },
                {
                    "content": "tained high surface chlorophyll concentrations",
                    "polygon": [
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                    "spans": [
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                            "offset": 41958,
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                    ]
                },
                {
                    "content": "between 5°N and 5°S, increasing towards the",
                    "polygon": [
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                    "spans": [
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                            "offset": 42005,
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                    ]
                },
                {
                    "content": "coast of Ecuador and Peru. Chlorophyll values",
                    "polygon": [
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                            "offset": 42049,
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                    ]
                },
                {
                    "content": "were low north of the 10°N thermocline ridge",
                    "polygon": [
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                            "offset": 42095,
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                    ]
                },
                {
                    "content": "and to the west towards the oligotrophic sub-",
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                    "spans": [
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                            "offset": 42140,
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                    ]
                },
                {
                    "content": "tropical gyre. In 1987, surface chlorophyll con-",
                    "polygon": [
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                            "offset": 42186,
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                    ]
                },
                {
                    "content": "centrations were significantly lower than in",
                    "polygon": [
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                    ]
                },
                {
                    "content": "1986, especially along the equator where the",
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                    "spans": [
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                    ]
                },
                {
                    "content": "temperature data indicated reduced upwelling of",
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                    "spans": [
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                            "offset": 42325,
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                    ]
                },
                {
                    "content": "cold, nutrient-rich water. In 1988, surface",
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                    ]
                },
                {
                    "content": "chlorophyll concentrations were more than twice",
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                    ]
                },
                {
                    "content": "as high as in 1987 and also significantly higher",
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                    ]
                },
                {
                    "content": "than in 1986. Equatorial upwelling in 1988 was",
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                        }
                    ]
                },
                {
                    "content": "driven by anomalously strong trade winds",
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                            "offset": 42561,
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                        }
                    ]
                },
                {
                    "content": "(Climate Diagnostics Bulletin).",
                    "polygon": [
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                            "offset": 42602,
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                        }
                    ]
                },
                {
                    "content": "We will integrate these chlorophyll data with",
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                            "offset": 42634,
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                        }
                    ]
                },
                {
                    "content": "our temperature, nutrient and subsurface",
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                    ]
                },
                {
                    "content": "chlorophyll data in a presentation at the first",
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                    ],
                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "annual conference of The Oceanography",
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                    ]
                },
                {
                    "content": "Society in August and in a paper to be submitted",
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                    "content": "perimental study of derelict gill-net fragments in the",
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                    "content": "central Pacific Ocean,\" which was coauthored by",
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                    "content": "Fishery Technicians Barry K. Choy and Lisa M.",
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                    "content": "location under the influence of wind and current.",
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                    "content": "speed of 15 km/day, but with frequent changes in",
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                    "content": "direction, they remained in the general vicinity of",
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                {
                    "content": "the Hawaiian Archipelago. The complex move-",
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                    "content": "ment of the net fragments means that predicting the",
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                    "content": "drift of marine debris is an oceanographic problem",
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                    "content": "requiring detailed knowledge of surface currents",
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                    "content": "and wind.",
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                    "content": "George H. Balazs, Leader of the Marine Turtle",
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                    "content": "Research Task, presented the paper \"Ecological",
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                    "content": "aspects of marine turtles impacted by ocean debris,",
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                    "content": "a 1989 perspective.\" Available evidence indicates",
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                    "content": "that ingestion of man-made debris floating on the",
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                    "spans": [
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                    ]
                },
                {
                    "content": "high seas has the greatest potential for adversely",
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                    "spans": [
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                    ]
                },
                {
                    "content": "impacting sea turtle populations. A major problem",
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                },
                {
                    "content": "in gathering detailed information on this",
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                {
                    "content": "phenomenon is the inability of researchers to locate",
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                {
                    "content": "pelagic habitats used by juvenile turtles of all",
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                },
                {
                    "content": "species. Pelagic habitats used as foraging sites by",
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                },
                {
                    "content": "sea turtles are believed to be frontal systems (con-",
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                },
                {
                    "content": "vergences, rips, drift lines) where buoyant food and",
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                },
                {
                    "content": "debris are drawn together by advection. Interna-",
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                    ]
                },
                {
                    "content": "tional concern for the impact of buoyant wastes in",
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                },
                {
                    "content": "the ocean is heightened by the fact that many sea",
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                },
                {
                    "content": "turtle populations are endangered and have ex-",
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                {
                    "content": "perienced serious declines from overfishing and",
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                },
                {
                    "content": "other adverse factors.",
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                },
                {
                    "content": "Fishery Biologist John R. Henderson's paper",
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                },
                {
                    "content": "\"Recent entanglements of Hawaiian monk seals in",
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                    "spans": [
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                    ]
                },
                {
                    "content": "marine debris,\" documented 34 observed incidents",
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                    ]
                },
                {
                    "content": "of entanglement on Monachus schauinslandi in",
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                },
                {
                    "content": "1985-88, including 4 known deaths, injuries to",
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                },
                {
                    "content": "2 seals, and 2 seals that had recent neck scars",
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                },
                {
                    "content": "from injuries. The overall entanglement rate in-",
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                },
                {
                    "content": "creased tenfold, from a low of 0.26 incidents/100",
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                },
                {
                    "content": "camp days in 1985 to a high of 2.66 inci-",
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                    ]
                },
                {
                    "content": "dents/100 camp days in 1988. This rise is",
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                },
                {
                    "content": "probably attributable to higher amounts of",
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                },
                {
                    "content": "marine debris on and around the islands where",
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                {
                    "content": "seals haul out. Sixty-nine entanglements have",
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                {
                    "content": "been documented since 1974.",
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                },
                {
                    "content": "For the conference, Fishery Biologist",
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                },
                {
                    "content": "Raymond P. Clarke of the Honolulu Laboratory",
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                },
                {
                    "content": "and Jo-Anne N. Kushima of the State of Hawaii's",
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                },
                {
                    "content": "Division of Aquatic Resources, prepared the",
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                    "content": "poster \"Marine debris and epipelagic fishes.\"",
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                {
                    "content": "Their poster documented two instances of",
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                {
                    "content": "marine debris apparently impacting two",
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                },
                {
                    "content": "epipelagic fishes: 1) a mahimahi, Coryphaena",
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                },
                {
                    "content": "hippurus (total length, 77.5 cm; weight, 2.06 kg",
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                },
                {
                    "content": "including net fragment), with a monofilament",
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                },
                {
                    "content": "nylon net fragment attached to its gills and oper-",
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                    "spans": [
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                },
                {
                    "content": "cular area, and 2) a swordfish, Xiphias gladius",
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                    ]
                },
                {
                    "content": "(total length, 140 cm; weight, 10 kg), with a",
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                },
                {
                    "content": "rubber band cutting (ca. 3 cm deep) into the",
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                },
                {
                    "content": "musculature forward of its caudal peduncle. (G.",
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                },
                {
                    "content": "Boehlert (808) 943-1221)",
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                    "spans": [
                        {
                            "offset": 47500,
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                    ]
                },
                {
                    "content": "Biological Specimens Readied for",
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                    "spans": [
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                            "offset": 47525,
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                        }
                    ]
                },
                {
                    "content": "Transfer to Major Museums",
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                            "offset": 47558,
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                    ]
                },
                {
                    "content": "The specimen and sample storage area of the",
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                    "spans": [
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                    ]
                },
                {
                    "content": "Honolulu Laboratory underwent a major clean-",
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                },
                {
                    "content": "ing and reorganization, April 17-28, to create",
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                },
                {
                    "content": "additional space for current and future biological",
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                },
                {
                    "content": "samples. A committee, headed by Fishery",
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                },
                {
                    "content": "Biologist John Henderson and composed of",
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                },
                {
                    "content": "Fishery Biologists Paul M. Shiota, Ray F. Sumida",
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                },
                {
                    "content": "and James H. Uchiyama, produced a plan in",
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                },
                {
                    "content": "January for the reorganization.",
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                {
                    "content": "Many of the staff reorganized storage areas",
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                },
                {
                    "content": "and discarded samples of little value to the scien-",
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                },
                {
                    "content": "tific community, including deteriorated, un-",
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                },
                {
                    "content": "labeled, or easily replaced specimens.",
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                    ]
                },
                {
                    "content": "the LACM will be available for inspection or loan to",
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                {
                    "content": "any qualified scientists needing them for research.",
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                },
                {
                    "content": "Also, Scripps Institution of Oceanography has re-",
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                },
                {
                    "content": "quested that zooplankton samples collected in the",
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                    ]
                },
                {
                    "content": "1950's through the 1970's be held for future trans-",
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                },
                {
                    "content": "fer.",
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                },
                {
                    "content": "Unused collections of larval and juvenile fishes",
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                },
                {
                    "content": "are also being donated to LACM, for division be-",
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                },
                {
                    "content": "tween that museum and MCZ. Both institutions",
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                {
                    "content": "have received National Science Foundation grants",
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                },
                {
                    "content": "in recent years to build major larval fish research",
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                },
                {
                    "content": "collections. These grants are a result of the interest",
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                            "offset": 50120,
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                },
                {
                    "content": "in ontogenetic characters useful in fish systematics",
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                },
                {
                    "content": "generated by the Ahlstrom memorial symposium",
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                            "offset": 50228,
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                    ]
                },
                {
                    "content": "held at the NMFS SWFC La Jolla Laboratory in",
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                            "offset": 50273,
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                },
                {
                    "content": "1983.",
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                            "offset": 50318,
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                    ]
                },
                {
                    "content": "The transfer of the Honolulu Laboratory's col-",
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                            "offset": 50324,
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                    ]
                },
                {
                    "content": "lections to LACM will make them available to the",
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                            "offset": 50371,
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                    ]
                },
                {
                    "content": "entire scientific community. The aid provided for",
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                            "offset": 50420,
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                },
                {
                    "content": "the transfer by LACM in funding, supplies, and",
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                    "spans": [
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                            "offset": 50470,
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                    ]
                },
                {
                    "content": "personnel will make this possible. (B. Mundy (808)",
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                },
                {
                    "content": "943-1212)",
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                },
                {
                    "content": "FISHERIES OCEANOGRAPHY",
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                },
                {
                    "content": "RESEARCH PROGRAM",
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                },
                {
                    "content": "Boehlert Presents Seamount Paper in",
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                },
                {
                    "content": "Azores",
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                {
                    "content": "Laboratory Director George W. Boehlert",
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                },
                {
                    "content": "presented the paper \"Biological processes on",
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                    ]
                },
                {
                    "content": "seamounts and their role in fisheries productivity\"",
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                },
                {
                    "content": "at the 9th Week of Fisheries of the Azores, a",
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                },
                {
                    "content": "conference held in Horta, Faial, Azores, March",
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                },
                {
                    "content": "6-10, 1989. His paper drew considerable inter-",
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                },
                {
                    "content": "est because of the large number of seamounts in",
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                            "offset": 50937,
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                },
                {
                    "content": "the Azorean region and the similarities between",
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                            "offset": 50985,
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                },
                {
                    "content": "Hawaii's and the Azores' fisheries (e.g., tuna,",
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                },
                {
                    "content": "insular fishes).",
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                },
                {
                    "content": "This meeting brings together various fisheries",
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                {
                    "content": "expertise from around the world to address",
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                },
                {
                    "content": "problems concerning the Azorean fisheries.",
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                },
                {
                    "content": "About 200 foreign and local participants",
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                    "content": "presented scientific papers as well as economic,",
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                },
                {
                    "content": "marketing, and other industry-related papers,",
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                    "content": "such as one on vessel financing. Discussions at",
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                    "content": "the meeting focused on the Azorean fisheries'",
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                {
                    "content": "problems and needs (e.g., research, data,",
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                    "content": "economics, markets). Azorean fishermen who",
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                    "content": "attended the meeting seemed quite interested in",
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                    "content": "the issues discussed.",
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                },
                {
                    "content": "The Azorean fisheries, particularly for tuna,",
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                {
                    "content": "are expanding, although most European",
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                },
                {
                    "content": "Economic Community (EEC) countries are in the",
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                            "offset": 51700,
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                },
                {
                    "content": "process of reducing fishing power and tonnage",
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                },
                {
                    "content": "under guidance of the European Commission,",
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                    "content": "whose representatives attended the meeting. In",
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                },
                {
                    "content": "the next decade, the exclusive economic zones",
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                    "content": "(EEZ's) of all EEC countries will be \"opened up\"",
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                },
                {
                    "content": "to the community. It is perceived that the",
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                },
                {
                    "content": "fisheries of the Azores and Madeira are not fully",
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                },
                {
                    "content": "utilized; therefore, expansion of the fleets is",
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                {
                    "content": "being allowed in these two areas before the EEZ",
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                {
                    "content": "14",
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                    "content": "Although perfectly edible when cooked, burnt tuna",
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                },
                {
                    "content": "is considered unsuitable for the sashimi market and",
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                    "content": "therefore commands only a small fraction of the",
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                {
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                    "content": "An exact measure of the cost of burnt tuna to the",
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                {
                    "content": "Hawaiian tuna fishing industry is not available, but",
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                    "content": "the total, annual, direct ex-vessel losses are es-",
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                {
                    "content": "timated at $3.0 million. (This figure does not take",
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                    "content": "into account retail losses or potential export markets",
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                },
                {
                    "content": "that remain undeveloped.) The ex-vessel value of",
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                {
                    "content": "yellowfin and bigeye tuna landings in Hawaii was",
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                    "content": "$12 to $20 million in 1987, so the importance of",
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                {
                    "content": "the burnt tuna problem can be easily appreciated.",
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                    "content": "Reliable, cost-effective techniques to prevent or",
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                {
                    "content": "minimize this problem are clearly needed.",
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                {
                    "content": "Watson's research is centered on the new",
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                {
                    "content": "hypothesis that burnt tuna is not directly caused by",
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                {
                    "content": "acidity and high muscle temperature that occur",
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                            "offset": 53777,
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                {
                    "content": "during capture, but rather is a result of digestion of",
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                },
                {
                    "content": "specific muscle proteins by calcium-activated",
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                },
                {
                    "content": "proteases (i.e., enzymes that cause protein destruc-",
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                {
                    "content": "tion), which become activated postmortem. This",
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                {
                    "content": "theory was originally delineated by Peter W.",
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                {
                    "content": "Hochachka and Richard W. Brill (\"Autocatalytic",
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                {
                    "content": "pathways to cell death: a new analysis of the tuna",
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                            "offset": 54117,
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                },
                {
                    "content": "burn problem,\" Fish. Physiol. Biochem. 4:81-87,",
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                },
                {
                    "content": "1987).",
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                {
                    "content": "Watson has expanded this basic hypothesis to",
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                },
                {
                    "content": "include the theory that adrenaline and",
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                {
                    "content": "noradrenaline, which are hormones that fish",
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                {
                    "content": "produce in response to stress, accelerate the activity",
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                {
                    "content": "of calcium-activated proteases (\"A comprehensive",
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                            "offset": 54406,
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                    ]
                },
                {
                    "content": "theory on the etiology of burnt tuna,\" Fish. Bull.",
                    "polygon": [
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                            "offset": 54455,
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                    ]
                },
                {
                    "content": "86:367-372, 1988). The expanded theory ex-",
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                },
                {
                    "content": "plains why the \"burnt tuna syndrome\" occurs more",
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                },
                {
                    "content": "often in fish caught by handline and rod and reel,",
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                },
                {
                    "content": "and in female fish caught during the summer. It also",
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                {
                    "content": "explains why other measures to reduce the in-",
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                            "length": 45
                        }
                    ]
                },
                {
                    "content": "cidence of burnt tuna, such as chilling and brain",
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                },
                {
                    "content": "destruction are relatively ineffective.",
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                    "spans": [
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                    ]
                },
                {
                    "content": "Using an electron microscope, Watson has found",
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                    "spans": [
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                    ]
                },
                {
                    "content": "that samples taken from burnt tuna showed charac-",
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                    ]
                },
                {
                    "content": "teristic deterioration in muscle structures known to",
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                    ]
                },
                {
                    "content": "be specifically attacked by calcium-activated",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "proteases (the Z-disk was selectively removed from",
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                    ]
                },
                {
                    "content": "the sarcomeres of burnt tuna), confirming the",
                    "polygon": [
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                },
                {
                    "content": "original hypothesis. More recently, biochemical",
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                    ]
                },
                {
                    "content": "analysis of burnt tuna, conducted by using SDS-",
                    "polygon": [
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                    ]
                },
                {
                    "content": "PAGE electrophoresis, indicates that a specific",
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                    ]
                },
                {
                    "content": "protein appears to be attacked by the calcium-ac-",
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                    ]
                },
                {
                    "content": "tivated proteases. The specific identity of this",
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                    ]
                },
                {
                    "content": "\"marker protein\" is yet unknown, but immunologi-",
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                    ]
                },
                {
                    "content": "cal testing (Western blot technique) is being used",
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                            "offset": 55423,
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                    ]
                },
                {
                    "content": "to determine its identity. More important, since",
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                    ]
                },
                {
                    "content": "this protein is a reliable indicator of burnt tuna,",
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                },
                {
                    "content": "it may eventually be possible to develop a test",
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                    ]
                },
                {
                    "content": "that obviates the current practice of quartering",
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                },
                {
                    "content": "tuna suspected of being burnt. This need to cut",
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                },
                {
                    "content": "open the fish to check for burnt tuna devalues",
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                    ]
                },
                {
                    "content": "the fish even if it is not burnt.",
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                    ]
                },
                {
                    "content": "Heretofore the burnt tuna syndrome has been",
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                },
                {
                    "content": "recognizable only in wholesale fish markets.",
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                },
                {
                    "content": "Work is now under way to reproduce the",
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                },
                {
                    "content": "syndromes in the laboratory, by using small,",
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                },
                {
                    "content": "isolated muscle samples. Work done in this man-",
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                },
                {
                    "content": "ner to date indicates the proposed theory is",
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                {
                    "content": "correct and that the muscle deterioration in burnt",
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                },
                {
                    "content": "tuna is due to a calcium-based proteolysis.",
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                },
                {
                    "content": "Surprisingly, the biochemical causes of burnt",
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                    ]
                },
                {
                    "content": "tuna also appear to be the same as those causing",
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                    "spans": [
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                            "offset": 56208,
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                    ]
                },
                {
                    "content": "damage to the human heart muscle during heart",
                    "polygon": [
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                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "attack and those causing some forms of muscular",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 56303,
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                    ]
                },
                {
                    "content": "dystrophy. Work on burnt tuna may therefore",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 56351,
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                    ]
                },
                {
                    "content": "have implications to medical science as well as",
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                    "spans": [
                        {
                            "offset": 56395,
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                    ]
                },
                {
                    "content": "to fishery science. (R. Brill (808) 943-1234)",
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                            "offset": 56443,
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                    ]
                },
                {
                    "content": "MARINE MAMMALS AND",
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                    ]
                },
                {
                    "content": "ENDANGERED SPECIES",
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                    ]
                },
                {
                    "content": "PROGRAM",
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                    "spans": [
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                            "offset": 56527,
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                    ]
                },
                {
                    "content": "Hawaiian Monk Seal Births Are",
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                    ]
                },
                {
                    "content": "Increasing",
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                    "spans": [
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                            "length": 10
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                    ]
                },
                {
                    "content": "Since 1983, personnel of the National Marine",
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                },
                {
                    "content": "Fisheries Service have tagged the weaned pups",
                    "polygon": [
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                },
                {
                    "content": "of Hawaiian monk seals, Monachus schauinslan-",
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                },
                {
                    "content": "di, at all breeding locations in the Northwestern",
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                    ]
                },
                {
                    "content": "Hawaiian Islands, to monitor pup production",
                    "polygon": [
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                },
                {
                    "content": "and survival (Figure 1). The pup production",
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                },
                {
                    "content": "125",
                    "polygon": [
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                },
                {
                    "content": "Fr. Frigate Shoals",
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                },
                {
                    "content": "100",
                    "polygon": [
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                },
                {
                    "content": "NUMBER OF PUPS",
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                    ]
                },
                {
                    "content": "75",
                    "polygon": [
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                },
                {
                    "content": "50",
                    "polygon": [
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                },
                {
                    "content": "Laysan",
                    "polygon": [
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                },
                {
                    "content": "Pearl and Hermes",
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                },
                {
                    "content": "25",
                    "polygon": [
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                },
                {
                    "content": "Lisianski",
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                },
                {
                    "content": "Kure",
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                {
                    "content": "0",
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                        2.3051
                    ],
                    "spans": [
                        {
                            "offset": 57333,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Shoals, Laysan Island, and Kure Atoll. The num-",
                    "polygon": [
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                        4.102,
                        2.3147,
                        4.102,
                        2.4681,
                        1.0878,
                        2.4681
                    ],
                    "spans": [
                        {
                            "offset": 57379,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "bers of pups born at Lisianski Island and Pearl and",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 57427,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "Hermes Reef show no clear pattern and are less",
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                        2.6406,
                        4.102,
                        2.794,
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                    "spans": [
                        {
                            "offset": 57479,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "complete because of the low field effort at these two",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 57526,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "locations. (T. Johanos-Kam (808) 943-1221)",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 57580,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "Green Turtle Habitats in Kaneohe Bay",
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                    ],
                    "spans": [
                        {
                            "offset": 57623,
                            "length": 36
                        }
                    ]
                },
                {
                    "content": "Documented for Long-Term Monitoring",
                    "polygon": [
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                        3.7665,
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                    ],
                    "spans": [
                        {
                            "offset": 57660,
                            "length": 35
                        }
                    ]
                },
                {
                    "content": "and Assessment",
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                        {
                            "offset": 57696,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Two discrete habitat sites in Kaneohe Bay, Oahu,",
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                        3.8387,
                        4.0924,
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                    ],
                    "spans": [
                        {
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                        }
                    ]
                },
                {
                    "content": "were recently identified as being intensively used by",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 57760,
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                        }
                    ]
                },
                {
                    "content": "the green turtle, Chelonia mydas, according to",
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                        4.1598,
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                        4.3132,
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                    "spans": [
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                            "offset": 57814,
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                        }
                    ]
                },
                {
                    "content": "George H. Balazs, Leader of the Marine Turtle",
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                    ],
                    "spans": [
                        {
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                        }
                    ]
                },
                {
                    "content": "Research Task. One site (ca. 0.25 km2 3-7 m deep)",
                    "polygon": [
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                        4.4665,
                        4.0972,
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                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "is used as a benthic resting area for adult and",
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                    "spans": [
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                    ]
                },
                {
                    "content": "immature turtles, and its bottom substrate is mainly",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "outcroppings of Porites coral. The other site is a",
                    "polygon": [
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                    "spans": [
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                            "offset": 58058,
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                        }
                    ]
                },
                {
                    "content": "shallow ( m deep), narrow, sandy bottom zone (100",
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                    "spans": [
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                            "offset": 58109,
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                        }
                    ]
                },
                {
                    "content": "m wide by 1 km long) where turtles forage on a",
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                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "luxuriant meadow of sea grass, Halophila",
                    "polygon": [
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                        }
                    ]
                },
                {
                    "content": "hawaiiana.",
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                    "spans": [
                        {
                            "offset": 58247,
                            "length": 10
                        }
                    ]
                },
                {
                    "content": "During three daytime study visits to these sites,",
                    "polygon": [
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                    ]
                },
                {
                    "content": "15 turtles were hand-captured by researchers using",
                    "polygon": [
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                        }
                    ]
                },
                {
                    "content": "scuba or snorkel gear. All turtles were measured",
                    "polygon": [
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                    "spans": [
                        {
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                        }
                    ]
                },
                {
                    "content": "and tagged, and the status of their health was",
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                    ]
                },
                {
                    "content": "assessed prior to release. No previously tagged",
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                    ]
                },
                {
                    "content": "turtles were encountered, although existing records",
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                        {
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                    ]
                },
                {
                    "content": "show that adults originally tagged at the breeding",
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                    ]
                },
                {
                    "content": "site of French Frigate Shoals 750 km to the",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "northwest have been resighted in Kaneohe Bay.",
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                        }
                    ]
                },
                {
                    "content": "Two problems were identified during the course",
                    "polygon": [
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                    ]
                },
                {
                    "content": "of this preliminary investigation. Fibropapillomas",
                    "polygon": [
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                        {
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                    ]
                },
                {
                    "content": "were found on 8 (57%) of the 15 turtles captured,",
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                    ]
                },
                {
                    "content": "constituting the highest rate seen thus far anywhere",
                    "polygon": [
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                        {
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                        }
                    ]
                },
                {
                    "content": "in Hawaii. The sizes of these epithelial growths",
                    "polygon": [
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                    ]
                },
                {
                    "content": "ranged from 0.5 to 8 cm in diameter or length. Two",
                    "polygon": [
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                        4.0828,
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                    "spans": [
                        {
                            "offset": 58946,
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                        }
                    ]
                },
                {
                    "content": "of the turtles had multiple, extensive growths, which",
                    "polygon": [
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                        {
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                    ]
                },
                {
                    "content": "likely were interfering with normal behavior.",
                    "polygon": [
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                        {
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                    ]
                },
                {
                    "content": "Studies at other sites in Hawaii have shown that",
                    "polygon": [
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                    ]
                },
                {
                    "content": "fibropapillomas on green turtles can grow rapidly",
                    "polygon": [
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                    ]
                },
                {
                    "content": "and reach gross proportions in only 2-3 years. The",
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                    "spans": [
                        {
                            "offset": 59196,
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                        }
                    ]
                },
                {
                    "content": "second problem identified was the displacement of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 59247,
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                        }
                    ]
                },
                {
                    "content": "turtles from segments of the Halophila foraging",
                    "polygon": [
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                        {
                            "offset": 59297,
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                    ]
                },
                {
                    "content": "pasture. This is due to tour operators and other",
                    "polygon": [
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                            "offset": 59345,
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                    ]
                },
                {
                    "content": "vessels anchoring within the zone on a daily basis",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 59394,
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                        }
                    ]
                },
                {
                    "content": "for recreational activities with large groups of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 59445,
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                    ]
                },
                {
                    "content": "people.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 59494,
                            "length": 7
                        }
                    ]
                },
                {
                    "content": "More information will be generated on both",
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                    "spans": [
                        {
                            "offset": 59502,
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                    ]
                },
                {
                    "content": "of these problems with the implementation of a",
                    "polygon": [
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                    "spans": [
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                            "offset": 59545,
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                    ]
                },
                {
                    "content": "long-term research and monitoring program. In",
                    "polygon": [
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                        7.2791,
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                    "spans": [
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                            "offset": 59592,
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                    ]
                },
                {
                    "content": "the immediate future, cooperative work will take",
                    "polygon": [
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                    "spans": [
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                            "offset": 59638,
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                    ]
                },
                {
                    "content": "place with a veterinary pathologist from the",
                    "polygon": [
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                    ]
                },
                {
                    "content": "University of Florida; the pathologist will visit",
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                    "spans": [
                        {
                            "offset": 59732,
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                    ]
                },
                {
                    "content": "Hawaii to biopsy fibropapillomas in search of the",
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                        {
                            "offset": 59782,
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                    ]
                },
                {
                    "content": "elusive etiological agent. (G. Balazs (808) 943-",
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                    "spans": [
                        {
                            "offset": 59832,
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                    ]
                },
                {
                    "content": "1221)",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 59881,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "FISHERY MANAGEMENT",
                    "polygon": [
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                        3.1438,
                        6.4261,
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                    "spans": [
                        {
                            "offset": 59887,
                            "length": 18
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                    ]
                },
                {
                    "content": "RESEARCH PROGRAM",
                    "polygon": [
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                        3.3403,
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                    ],
                    "spans": [
                        {
                            "offset": 59906,
                            "length": 16
                        }
                    ]
                },
                {
                    "content": "Preliminary Estimates of Hawaii's",
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                        6.7472,
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                        6.7472,
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                    "spans": [
                        {
                            "offset": 59923,
                            "length": 33
                        }
                    ]
                },
                {
                    "content": "Fisheries Landings and Value in 1988",
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                        3.9489
                    ],
                    "spans": [
                        {
                            "offset": 59957,
                            "length": 36
                        }
                    ]
                },
                {
                    "content": "Preliminary estimates of Hawaii's commercial",
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                    "spans": [
                        {
                            "offset": 59994,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "fishery were prepared by Samuel G. Pooley,",
                    "polygon": [
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                        7.2551,
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                    "spans": [
                        {
                            "offset": 60039,
                            "length": 42
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                    ]
                },
                {
                    "content": "Industry Economist, for inclusion in the NMFS",
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                        {
                            "offset": 60082,
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                    ]
                },
                {
                    "content": "publication, Fisheries of the United States, 1988.",
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                            "offset": 60128,
                            "length": 50
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                    ]
                },
                {
                    "content": "The estimates, using the publication's rather un-",
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                        4.7013,
                        7.2647,
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                    "spans": [
                        {
                            "offset": 60179,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "usual reporting requirements, are as follows:",
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                        4.8547,
                        7.0491,
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                            "offset": 60229,
                            "length": 45
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                    ]
                },
                {
                    "content": "Species group",
                    "polygon": [
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                        5.4054,
                        5.3627,
                        5.4054,
                        5.4777,
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                    "spans": [
                        {
                            "offset": 60275,
                            "length": 13
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                    ]
                },
                {
                    "content": "Pounds",
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                        5.2381,
                        6.4261,
                        5.3387,
                        5.9804,
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                            "offset": 60289,
                            "length": 6
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                    ]
                },
                {
                    "content": "(1,000's)",
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                        6.474,
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                    "spans": [
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                            "offset": 60296,
                            "length": 9
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                    ]
                },
                {
                    "content": "$US",
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                        {
                            "offset": 60306,
                            "length": 3
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                    ]
                },
                {
                    "content": "(1,000's)",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 60310,
                            "length": 9
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                    ]
                },
                {
                    "content": "Marlin",
                    "polygon": [
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                        4.8927,
                        5.7221,
                        4.8927,
                        5.818,
                        4.4326,
                        5.8132
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                    "spans": [
                        {
                            "offset": 60320,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "2,757",
                    "polygon": [
                        6.0571,
                        5.7269,
                        6.4213,
                        5.7269,
                        6.4213,
                        5.8275,
                        6.0571,
                        5.8275
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                    "spans": [
                        {
                            "offset": 60327,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "2,853",
                    "polygon": [
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                        5.7269,
                        7.2168,
                        5.7269,
                        7.2168,
                        5.818,
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                        5.8228
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                    "spans": [
                        {
                            "offset": 60333,
                            "length": 5
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                    ]
                },
                {
                    "content": "Bottom fish",
                    "polygon": [
                        4.4374,
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                        5.2521,
                        5.8419,
                        5.2521,
                        5.9378,
                        4.4374,
                        5.9378
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                    "spans": [
                        {
                            "offset": 60339,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "1,675",
                    "polygon": [
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                        6.4165,
                        5.8515,
                        6.4165,
                        5.9426,
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                    "spans": [
                        {
                            "offset": 60351,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "2,647",
                    "polygon": [
                        6.8622,
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                        7.2216,
                        5.8467,
                        7.2216,
                        5.9426,
                        6.8622,
                        5.9426
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                    "spans": [
                        {
                            "offset": 60357,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "Tunas",
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                        5.9761,
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                    "spans": [
                        {
                            "offset": 60363,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "12,705",
                    "polygon": [
                        5.9804,
                        5.9665,
                        6.4213,
                        5.9665,
                        6.4213,
                        6.0672,
                        5.9804,
                        6.072
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                    "spans": [
                        {
                            "offset": 60369,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "23,754",
                    "polygon": [
                        6.7807,
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                        7.2216,
                        5.9665,
                        7.2216,
                        6.0672,
                        6.7759,
                        6.0672
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                    "spans": [
                        {
                            "offset": 60376,
                            "length": 6
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                    ]
                },
                {
                    "content": "Shellfish",
                    "polygon": [
                        4.4422,
                        6.0911,
                        5.1035,
                        6.0911,
                        5.1035,
                        6.1822,
                        4.4422,
                        6.1822
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                    "spans": [
                        {
                            "offset": 60383,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "1,531",
                    "polygon": [
                        6.0571,
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                        6.0911,
                        6.4165,
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                    "spans": [
                        {
                            "offset": 60393,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "5,508",
                    "polygon": [
                        6.8574,
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                        6.0863,
                        7.2216,
                        6.187,
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                    "spans": [
                        {
                            "offset": 60399,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "Other fish",
                    "polygon": [
                        4.4374,
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                        5.1802,
                        6.2109,
                        5.1802,
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                    "spans": [
                        {
                            "offset": 60405,
                            "length": 10
                        }
                    ]
                },
                {
                    "content": "2,463",
                    "polygon": [
                        6.0523,
                        6.2157,
                        6.4117,
                        6.2157,
                        6.4165,
                        6.3116,
                        6.0523,
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                    "spans": [
                        {
                            "offset": 60416,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "4,987",
                    "polygon": [
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                        6.2157,
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                        6.3164
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                    "spans": [
                        {
                            "offset": 60422,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "Total",
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                        6.4553,
                        4.8016,
                        6.4553,
                        4.8016,
                        6.5464,
                        4.4326,
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                    "spans": [
                        {
                            "offset": 60428,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "21,131",
                    "polygon": [
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                        6.4553,
                        6.4213,
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                        {
                            "offset": 60434,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "39,749",
                    "polygon": [
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                        6.4553,
                        7.2216,
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                        6.556
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                        {
                            "offset": 60441,
                            "length": 6
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                    ]
                },
                {
                    "content": "These figures, which show a 30% increase",
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                    "spans": [
                        {
                            "offset": 60448,
                            "length": 40
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                    ]
                },
                {
                    "content": "over 1987, should be used only as early indica-",
                    "polygon": [
                        4.3991,
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                        7.2551,
                        7.0256,
                        7.2551,
                        7.1742,
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                        {
                            "offset": 60489,
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                    ]
                },
                {
                    "content": "tions of Hawaii's fishery status in 1988. Revised",
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                            "offset": 60537,
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                    ]
                },
                {
                    "content": "figures will be included in the annual report",
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                },
                {
                    "content": "modules prepared for the fishery management",
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                {
                    "content": "plans for the Western Pacific Regional Fishery",
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                {
                    "content": "Management Council (Council).",
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                {
                    "content": "Preliminary Status Report on the",
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                },
                {
                    "content": "Bottom Fish Fishery in the",
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                },
                {
                    "content": "Northwestern Hawaiian Islands",
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                },
                {
                    "content": "A brief status report on Hawaii's bottom fish",
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                    "content": "fishery was prepared for the Council's April",
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                {
                    "content": "meeting in American Samoa. The report, which",
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                {
                    "content": "is based on preliminary data from NMFS market",
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                    "content": "sampling, shows that bottom fish landings in",
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                    "content": "Hawaii have remained about the same for the",
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                    "content": "past 3 years. However, landings from the",
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                    "content": "Northwestern Hawaiian Islands (NWHI) have",
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                    "content": "fallen by 34% since 1986, while landings from",
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                    "content": "15",
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                    "content": "the",
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                    "spans": [
                        {
                            "offset": 62355,
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                {
                    "content": "revenues are summarized in her report \"Summary",
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                {
                    "content": "of Small Boat Economic Surveys from American",
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                },
                {
                    "content": "Samoa, Guam, and the Northern Mariana Islands\"",
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                {
                    "content": "(Administrative Report H-89-4C) and will be in-",
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                    "content": "tegrated into a descriptive report with joint authors",
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                {
                    "content": "from each of the three areas.",
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                    "content": "Precious Coral Fishery Revives",
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                    "content": "The Fishery Management Research Program",
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                    "content": "received its first log under the Precious Coral",
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                },
                {
                    "content": "Fishery Management Plan (FMP). The log reports",
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                {
                    "content": "the harvest and number of fishing days for one trip",
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                    "content": "taken under the existing quotas of the FMP. This",
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                    "content": "trip represented the second taken by a domestic",
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                },
                {
                    "content": "vessel in the western Pacific precious coral \"fishery,\"",
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                {
                    "content": "but the previous trip was taken to an area of the",
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                    "content": "fishery conservation zone that, prior to the recent",
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                    "content": "FMP amendment, required neither a permit nor",
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                {
                    "content": "logs. Because only one vessel has participated in",
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                },
                {
                    "content": "the fishery, no data summaries can be released.",
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                {
                    "content": "Recently, two vessels requested experimental per-",
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                {
                    "content": "mits to fish in areas and in quantities otherwise",
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                {
                    "content": "precluded by the FMP. Both applications are pend-",
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                    ]
                },
                {
                    "content": "ing action by the Director of the Southwest Region.",
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                },
                {
                    "content": "(S. Pooley (808) 943-1216)",
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                {
                    "content": "PACIFIC FISHERIES",
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                {
                    "content": "ENVIRONMENTAL",
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                {
                    "content": "GROUP",
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                {
                    "content": "Monterey, California",
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                {
                    "content": "FISHERY/ENVIRONMENTAL",
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                },
                {
                    "content": "LINKAGES",
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                {
                    "content": "Chapters Prepared for Peruvian",
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                    ]
                },
                {
                    "content": "Upwelling Volume",
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                    ]
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                {
                    "content": "Application of the comparative method of",
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                {
                    "content": "science is one promising approach toward",
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                {
                    "content": "developing improved insight into the interac-",
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                {
                    "content": "tions of fish population dynamics and natural",
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                    "content": "environmental variability. For a number of years",
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                {
                    "content": "PFEG scientists have been developing a",
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                    "content": "framework of comparative climatology of neritic",
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                    ]
                },
                {
                    "content": "habitats from which to draw generalized inferen-",
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                {
                    "content": "ces as to stock - recruitment issues, identification",
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                {
                    "content": "of trends in fishery productivity, interspecies in-",
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                {
                    "content": "teractions, effects of habitat alterations or",
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                {
                    "content": "climatic change, etc. This has involved certain",
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                    "content": "international collaborations.",
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                    "content": "For the past several years, one aspect of PFEG",
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                    "content": "activity in this direction has been participation in",
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                },
                {
                    "content": "a multilateral study of the population dynamics",
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                {
                    "content": "and ecosystem characteristics of the Peruvian",
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                },
                {
                    "content": "anchoveta. The co-sponsors of the study are the",
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                },
                {
                    "content": "Instituto del Mar del Peru (IMARPE); the Federal",
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                },
                {
                    "content": "Republic of Germany's Deutsche Gesellschaft fr",
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                },
                {
                    "content": "Technische Zusammenarbeit (GTZ), and the In-",
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                },
                {
                    "content": "ternational Center for Living Aquatic Resources",
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                },
                {
                    "content": "Management (ICLARM). PFEG scientists",
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                {
                    "content": "prepared three chapters for an initial volume,",
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                {
                    "content": "\"The Peruvian Anchoveta and Its Upwelling",
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                {
                    "content": "Ecosystem: Three Decades of Change,\" which",
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                {
                    "content": "was published by ICLARM in 1987.",
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                        4.0733,
                        2.8766,
                        4.0733,
                        3.0298,
                        1.0674,
                        3.025
                    ],
                    "spans": [
                        {
                            "offset": 65833,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "Reconciliation, and Update through 1986.",
                    "polygon": [
                        1.0626,
                        3.0393,
                        3.5947,
                        3.0441,
                        3.5899,
                        3.1877,
                        1.0626,
                        3.1829
                    ],
                    "spans": [
                        {
                            "offset": 65877,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "Corrected values are presented for the monthly",
                    "polygon": [
                        1.2349,
                        3.3552,
                        4.0733,
                        3.3696,
                        4.0733,
                        3.5132,
                        1.2349,
                        3.4988
                    ],
                    "spans": [
                        {
                            "offset": 65918,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "series of alongshore stress presented in the previous",
                    "polygon": [
                        1.0626,
                        3.5275,
                        4.0829,
                        3.5323,
                        4.0829,
                        3.6759,
                        1.0626,
                        3.6711
                    ],
                    "spans": [
                        {
                            "offset": 65965,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "volume of this series. The series is updated through",
                    "polygon": [
                        1.0626,
                        3.6855,
                        4.0829,
                        3.6855,
                        4.0829,
                        3.8387,
                        1.0626,
                        3.8291
                    ],
                    "spans": [
                        {
                            "offset": 66019,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "1986. The faulty \"old\" and corrected \"new\" series",
                    "polygon": [
                        1.0722,
                        3.8434,
                        4.0781,
                        3.8482,
                        4.0781,
                        3.9966,
                        1.0722,
                        3.987
                    ],
                    "spans": [
                        {
                            "offset": 66072,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "are compared and found to have very similar",
                    "polygon": [
                        1.0578,
                        4.0062,
                        4.0877,
                        4.0062,
                        4.0877,
                        4.1593,
                        1.0578,
                        4.1593
                    ],
                    "spans": [
                        {
                            "offset": 66122,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "properties. It is concluded that studies that may",
                    "polygon": [
                        1.0578,
                        4.1689,
                        4.0781,
                        4.1689,
                        4.0781,
                        4.3221,
                        1.0578,
                        4.3221
                    ],
                    "spans": [
                        {
                            "offset": 66166,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "have been based on the \"old\" series will not be",
                    "polygon": [
                        1.0626,
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                        4.0829,
                        4.3269,
                        4.0829,
                        4.4705,
                        1.0626,
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                    ],
                    "spans": [
                        {
                            "offset": 66216,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "significantly in error.",
                    "polygon": [
                        1.0626,
                        4.4944,
                        2.288,
                        4.4944,
                        2.288,
                        4.6332,
                        1.0626,
                        4.638
                    ],
                    "spans": [
                        {
                            "offset": 66264,
                            "length": 23
                        }
                    ]
                },
                {
                    "content": "Roy Mendelssohn. A Reanalysis of Estimates of",
                    "polygon": [
                        1.2253,
                        4.8103,
                        4.0877,
                        4.8103,
                        4.0877,
                        4.9539,
                        1.2253,
                        4.9539
                    ],
                    "spans": [
                        {
                            "offset": 66288,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Recruitment of the Peruvian Anchoveta in Relation-",
                    "polygon": [
                        1.0578,
                        4.973,
                        4.0638,
                        4.973,
                        4.0638,
                        5.1166,
                        1.0578,
                        5.107
                    ],
                    "spans": [
                        {
                            "offset": 66334,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "ship to the Other Population Parameters and to the",
                    "polygon": [
                        1.0626,
                        5.1358,
                        4.0733,
                        5.1358,
                        4.0733,
                        5.2794,
                        1.0626,
                        5.2794
                    ],
                    "spans": [
                        {
                            "offset": 66385,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "Surrounding Environment.",
                    "polygon": [
                        1.0578,
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                        5.2937,
                        2.6757,
                        5.4469,
                        1.0578,
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                    ],
                    "spans": [
                        {
                            "offset": 66436,
                            "length": 24
                        }
                    ]
                },
                {
                    "content": "The new recruitment estimates of the Peruvian",
                    "polygon": [
                        1.2253,
                        5.6144,
                        4.0733,
                        5.624,
                        4.0733,
                        5.7676,
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                        5.758
                    ],
                    "spans": [
                        {
                            "offset": 66461,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "anchoveta are analyzed with respect to other",
                    "polygon": [
                        1.0578,
                        5.7819,
                        4.0781,
                        5.7867,
                        4.0781,
                        5.9351,
                        1.0578,
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                    ],
                    "spans": [
                        {
                            "offset": 66507,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "population parameters and the surrounding ocean.",
                    "polygon": [
                        1.0578,
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                        5.9447,
                        4.0877,
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                        1.0578,
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                    ],
                    "spans": [
                        {
                            "offset": 66552,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "environment. The inshore and offshore environ-",
                    "polygon": [
                        1.0626,
                        6.1074,
                        4.0685,
                        6.1074,
                        4.0685,
                        6.251,
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                        6.251
                    ],
                    "spans": [
                        {
                            "offset": 66601,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "mental variables are shown to differ in their",
                    "polygon": [
                        1.0578,
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                        4.0829,
                        6.2701,
                        4.0829,
                        6.4137,
                        1.0578,
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                    ],
                    "spans": [
                        {
                            "offset": 66648,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "dynamics, and the inshore series vary north to",
                    "polygon": [
                        1.0578,
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                        4.0685,
                        6.4329,
                        4.0685,
                        6.586,
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                        6.586
                    ],
                    "spans": [
                        {
                            "offset": 66694,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "south. For the inshore locations, it is not possible",
                    "polygon": [
                        1.0482,
                        6.586,
                        4.0733,
                        6.6004,
                        4.0733,
                        6.744,
                        1.0482,
                        6.7296
                    ],
                    "spans": [
                        {
                            "offset": 66741,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "to resolve whether a wind related effect is due to",
                    "polygon": [
                        1.0435,
                        6.7583,
                        4.0685,
                        6.7583,
                        4.0685,
                        6.9067,
                        1.0435,
                        6.9019
                    ],
                    "spans": [
                        {
                            "offset": 66794,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "transport or turbulence. The new recruitment es-",
                    "polygon": [
                        1.0482,
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                        4.0685,
                        6.9163,
                        4.0685,
                        7.0695,
                        1.0482,
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                    ],
                    "spans": [
                        {
                            "offset": 66845,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "timates differ significantly from the old estimates,",
                    "polygon": [
                        1.053,
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                        4.0638,
                        7.0838,
                        4.0638,
                        7.2322,
                        1.053,
                        7.2322
                    ],
                    "spans": [
                        {
                            "offset": 66894,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "partly due to mackerel consumption acting as a",
                    "polygon": [
                        1.0482,
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                        7.2466,
                        4.0685,
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                    ],
                    "spans": [
                        {
                            "offset": 66947,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "surrogate for SST. Models using the monthly data",
                    "polygon": [
                        1.0435,
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                        4.0685,
                        7.4045,
                        4.0685,
                        7.5529,
                        1.0435,
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                    ],
                    "spans": [
                        {
                            "offset": 66994,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "were not possible due to correlations in the popula-",
                    "polygon": [
                        1.0482,
                        7.5672,
                        4.0638,
                        7.5672,
                        4.0638,
                        7.7252,
                        1.0482,
                        7.7204
                    ],
                    "spans": [
                        {
                            "offset": 67043,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "tions that could be spurious. On a yearly basis, a",
                    "polygon": [
                        1.0435,
                        7.73,
                        4.059,
                        7.7348,
                        4.059,
                        7.8879,
                        1.0435,
                        7.8784
                    ],
                    "spans": [
                        {
                            "offset": 67096,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "nonlinear additive model using parent biomass and",
                    "polygon": [
                        1.053,
                        7.8927,
                        4.0685,
                        7.8975,
                        4.0685,
                        8.0459,
                        1.053,
                        8.0363
                    ],
                    "spans": [
                        {
                            "offset": 67147,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "transport at Trujillo explained 75% of the variance",
                    "polygon": [
                        1.053,
                        8.0554,
                        4.0733,
                        8.0554,
                        4.0733,
                        8.2038,
                        1.053,
                        8.2038
                    ],
                    "spans": [
                        {
                            "offset": 67197,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "in the recruitment estimates.",
                    "polygon": [
                        1.053,
                        8.2182,
                        2.7187,
                        8.223,
                        2.7187,
                        8.357,
                        1.053,
                        8.3522
                    ],
                    "spans": [
                        {
                            "offset": 67249,
                            "length": 29
                        }
                    ]
                },
                {
                    "content": "Richard H. Parrish. The South Pacific Oceanic",
                    "polygon": [
                        1.2301,
                        8.5389,
                        4.0733,
                        8.5437,
                        4.0733,
                        8.6872,
                        1.2301,
                        8.6777
                    ],
                    "spans": [
                        {
                            "offset": 67279,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Horse Mackerel (Trachurus picturatus murphyi)",
                    "polygon": [
                        1.053,
                        8.7016,
                        4.059,
                        8.7112,
                        4.059,
                        8.8643,
                        1.053,
                        8.8452
                    ],
                    "spans": [
                        {
                            "offset": 67325,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Fishery.",
                    "polygon": [
                        1.0626,
                        8.8691,
                        1.5269,
                        8.8739,
                        1.5221,
                        9.0127,
                        1.0626,
                        9.0079
                    ],
                    "spans": [
                        {
                            "offset": 67371,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "The horse mackerel fishery of the South Pacific",
                    "polygon": [
                        1.2301,
                        9.1898,
                        4.0733,
                        9.1898,
                        4.0733,
                        9.343,
                        1.2301,
                        9.3382
                    ],
                    "spans": [
                        {
                            "offset": 67380,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "currently dominates the world's catch of horse",
                    "polygon": [
                        1.053,
                        9.3573,
                        4.0781,
                        9.3526,
                        4.0781,
                        9.5009,
                        1.053,
                        9.5009
                    ],
                    "spans": [
                        {
                            "offset": 67428,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "mackerels. The rapid increases in catches of horse",
                    "polygon": [
                        1.053,
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                        9.5153,
                        4.0733,
                        9.6589,
                        1.053,
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                    ],
                    "spans": [
                        {
                            "offset": 67475,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "mackerel by South American purse seine fleets and",
                    "polygon": [
                        1.053,
                        9.678,
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                        9.678,
                        4.0685,
                        9.8312,
                        1.053,
                        9.8264
                    ],
                    "spans": [
                        {
                            "offset": 67526,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "the distant water USSR trawl fleet are discussed and",
                    "polygon": [
                        1.053,
                        9.836,
                        4.0638,
                        9.8408,
                        4.0638,
                        9.9844,
                        1.053,
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                    ],
                    "spans": [
                        {
                            "offset": 67576,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "the geographical expansion of the trawl fishery",
                    "polygon": [
                        4.3892,
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                        0.9573,
                        7.2516,
                        1.1104,
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                    ],
                    "spans": [
                        {
                            "offset": 67629,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "is shown utilizing ship surface weather observa-",
                    "polygon": [
                        4.3988,
                        1.1152,
                        7.2468,
                        1.1152,
                        7.2468,
                        1.2636,
                        4.3988,
                        1.2588
                    ],
                    "spans": [
                        {
                            "offset": 67677,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "tions.",
                    "polygon": [
                        4.3988,
                        1.2827,
                        4.7243,
                        1.2827,
                        4.7243,
                        1.3976,
                        4.394,
                        1.3976
                    ],
                    "spans": [
                        {
                            "offset": 67726,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "Due to disagreement on the taxonomic iden-",
                    "polygon": [
                        4.552,
                        1.5939,
                        7.2468,
                        1.5986,
                        7.2468,
                        1.747,
                        4.552,
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                    ],
                    "spans": [
                        {
                            "offset": 67733,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "tity of the species which supports the fishery a",
                    "polygon": [
                        4.3845,
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                        1.7566,
                        7.2468,
                        1.9145,
                        4.3845,
                        1.9098
                    ],
                    "spans": [
                        {
                            "offset": 67776,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "review of the world's Trachurus was made. The",
                    "polygon": [
                        4.3892,
                        1.9193,
                        7.2564,
                        1.9241,
                        7.2564,
                        2.0677,
                        4.3892,
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                    ],
                    "spans": [
                        {
                            "offset": 67825,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "results of this review show that neither of the",
                    "polygon": [
                        4.3892,
                        2.0773,
                        7.2564,
                        2.0821,
                        7.2564,
                        2.2257,
                        4.3892,
                        2.2209
                    ],
                    "spans": [
                        {
                            "offset": 67871,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "eastern Pacific forms of Trachurus merits full",
                    "polygon": [
                        4.394,
                        2.24,
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                        2.24,
                        7.2564,
                        2.3884,
                        4.394,
                        2.3836
                    ],
                    "spans": [
                        {
                            "offset": 67919,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "species rank. It is concluded that both are sub-",
                    "polygon": [
                        4.3845,
                        2.398,
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                        2.398,
                        7.2468,
                        2.5463,
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                    "spans": [
                        {
                            "offset": 67966,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "species of the oceanic horse mackerel (Trachurus",
                    "polygon": [
                        4.3797,
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                        2.5655,
                        7.2468,
                        2.7139,
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                    ],
                    "spans": [
                        {
                            "offset": 68015,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "picturatus); T. p. symmetricus in the north-",
                    "polygon": [
                        4.3845,
                        2.7187,
                        7.242,
                        2.7187,
                        7.242,
                        2.8814,
                        4.3845,
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                    ],
                    "spans": [
                        {
                            "offset": 68064,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "eastern Pacific and T. p. murphyi in the",
                    "polygon": [
                        4.3892,
                        2.8862,
                        7.2516,
                        2.891,
                        7.2516,
                        3.0441,
                        4.3892,
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                    ],
                    "spans": [
                        {
                            "offset": 68109,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "southeastern Pacific. It is further suggested that",
                    "polygon": [
                        4.3892,
                        3.0441,
                        7.242,
                        3.0537,
                        7.242,
                        3.2069,
                        4.3892,
                        3.1877
                    ],
                    "spans": [
                        {
                            "offset": 68150,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "it is likely that the range of T. p. murphyi extends",
                    "polygon": [
                        4.3845,
                        3.2116,
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                        3.2164,
                        7.2468,
                        3.3696,
                        4.3845,
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                    ],
                    "spans": [
                        {
                            "offset": 68201,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "clear across the southern hemisphere west wind",
                    "polygon": [
                        4.3797,
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                        7.2468,
                        3.3792,
                        7.2468,
                        3.5275,
                        4.3797,
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                    ],
                    "spans": [
                        {
                            "offset": 68254,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "drift region (i.e. from the south Atlantic to Chile).",
                    "polygon": [
                        4.3797,
                        3.5323,
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                        3.5371,
                        7.2372,
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                    ],
                    "spans": [
                        {
                            "offset": 68301,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "(A. Bakun (408) 646-3311)",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 68355,
                            "length": 25
                        }
                    ]
                },
                {
                    "content": "PELAGIC FISHERIES",
                    "polygon": [
                        4.7482,
                        4.1115,
                        6.8782,
                        4.1115,
                        6.8782,
                        4.2886,
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                    ],
                    "spans": [
                        {
                            "offset": 68381,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "RESOURCES DIVISION",
                    "polygon": [
                        4.619,
                        4.3077,
                        7.0075,
                        4.3077,
                        7.0075,
                        4.4944,
                        4.619,
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                    ],
                    "spans": [
                        {
                            "offset": 68399,
                            "length": 18
                        }
                    ]
                },
                {
                    "content": "La Jolla, California",
                    "polygon": [
                        5.246,
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                    ],
                    "spans": [
                        {
                            "offset": 68418,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "FISHERY MONITORING AND",
                    "polygon": [
                        4.394,
                        5.1214,
                        6.6724,
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                    "content": "EVALUATION PROGRAM",
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                    "content": "Statistics Reviewed on the U.S. Canned",
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                    "content": "Tuna Industry for 1988",
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                    "content": "Statistics describing the U.S. canned tuna in-",
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                    "content": "rick, SWFC, and presented as a feature article in",
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                    "content": "the May issue of the Region/Center Tuna",
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                    "content": "Newsletter. Data shows that the number of ac-",
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                    "content": "30 -",
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                    "content": "reported",
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                },
                {
                    "content": "by",
                    "polygon": [
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                    "confidence": 0.999,
                    "span": {
                        "offset": 71982,
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                    }
                },
                {
                    "content": "18",
                    "polygon": [
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                    "span": {
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            ],
            "lines": [
                {
                    "content": "In 1988, 57% of the vessels operated in the eastern",
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                    ]
                },
                {
                    "content": "Pacific and 43% operated in the western Pacific.",
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                            "length": 48
                        }
                    ]
                },
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                    "content": "Total receipts of raw tuna by U.S. canneries",
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                    ]
                },
                {
                    "content": "declined slightly in 1988, but were still well above",
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                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "the recent low of 450,000 short tons of 1985 (Fig-",
                    "polygon": [
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                    ]
                },
                {
                    "content": "ure 2). Total receipts were 510,471 short tons with",
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                    ]
                },
                {
                    "content": "imports contributing slightly more than domestic",
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                    ]
                },
                {
                    "content": "deliveries. Skipjack tuna was the principal species",
                    "polygon": [
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                    ]
                },
                {
                    "content": "in both domestically-caught and imported receipts.",
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                            "length": 50
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                },
                {
                    "content": "Major foreign suppliers were Taiwan, South Korea,",
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                    "spans": [
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                },
                {
                    "content": "and Ghana. The western Pacific was the major",
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                    "spans": [
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                },
                {
                    "content": "source of albacore and skipjack tuna whereas the",
                    "polygon": [
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                    "spans": [
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                            "length": 48
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                    ]
                },
                {
                    "content": "eastern Pacific contributed the greatest quantity of",
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                            "length": 52
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                    ]
                },
                {
                    "content": "yellowfin tuna.",
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                    "spans": [
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                            "offset": 69756,
                            "length": 15
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                    ]
                },
                {
                    "content": "600",
                    "polygon": [
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                    "spans": [
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                            "length": 3
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                    ]
                },
                {
                    "content": ".",
                    "polygon": [
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                    "spans": [
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                            "offset": 69776,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "500",
                    "polygon": [
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                    "spans": [
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                            "length": 3
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                    ]
                },
                {
                    "content": "RECEIPTS (1,000 short tons)",
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                            "offset": 69782,
                            "length": 27
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                    ]
                },
                {
                    "content": "400",
                    "polygon": [
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                    "spans": [
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                            "offset": 69810,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "300",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 69814,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "200",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 69818,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "100 -",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 69822,
                            "length": 5
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                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                        5.5,
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                    "spans": [
                        {
                            "offset": 69828,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "1982",
                    "polygon": [
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                        1.5952,
                        5.5239,
                        1.6,
                        5.5859,
                        1.4376,
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                    "spans": [
                        {
                            "offset": 69830,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1983",
                    "polygon": [
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                        2.025,
                        5.5239,
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                        5.5859,
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                    "spans": [
                        {
                            "offset": 69835,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1984",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 69840,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 69845,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 69850,
                            "length": 4
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                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
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                    "spans": [
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                            "offset": 69855,
                            "length": 4
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                    ]
                },
                {
                    "content": "1988",
                    "polygon": [
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                    "spans": [
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                            "offset": 69860,
                            "length": 4
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                    ]
                },
                {
                    "content": "YEAR",
                    "polygon": [
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                    "spans": [
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                            "offset": 69865,
                            "length": 4
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                    ]
                },
                {
                    "content": "Figure 2. U.S. cannery receipts of raw tuna, 1982-",
                    "polygon": [
                        1.2991,
                        5.8628,
                        4.0262,
                        5.8628,
                        4.0262,
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                            "offset": 69870,
                            "length": 50
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                    ]
                },
                {
                    "content": "1988.",
                    "polygon": [
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                    "spans": [
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                            "offset": 69921,
                            "length": 5
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                    ]
                },
                {
                    "content": "Contract prices for domestically-caught raw tuna",
                    "polygon": [
                        1.323,
                        6.2687,
                        4.1647,
                        6.2687,
                        4.1647,
                        6.4119,
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                    "spans": [
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                            "offset": 69927,
                            "length": 48
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                    ]
                },
                {
                    "content": "delivered to U.S. canneries in American Samoa and",
                    "polygon": [
                        1.1606,
                        6.431,
                        4.1647,
                        6.431,
                        4.1647,
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                        1.1606,
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                    "spans": [
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                            "offset": 69976,
                            "length": 49
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                    ]
                },
                {
                    "content": "Puerto Rico in early 1988 were slightly higher than",
                    "polygon": [
                        1.1558,
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                    "spans": [
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                            "offset": 70026,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "in late 1987, then declined later in the year to levels",
                    "polygon": [
                        1.1558,
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                        4.1695,
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                    "spans": [
                        {
                            "offset": 70078,
                            "length": 55
                        }
                    ]
                },
                {
                    "content": "below those of 1987. Weighted average exvessel",
                    "polygon": [
                        1.1558,
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                        6.9371,
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                    "spans": [
                        {
                            "offset": 70134,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "prices paid by canners for domestically-caught tuna",
                    "polygon": [
                        1.151,
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                        4.1647,
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                    "spans": [
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                            "offset": 70181,
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                    ]
                },
                {
                    "content": "increased for the third straight year to $1,094 per",
                    "polygon": [
                        1.1558,
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                        4.1743,
                        7.2665,
                        4.1743,
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                        1.1558,
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                    "spans": [
                        {
                            "offset": 70233,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "ton for yellowfin tuna, and to $977 per ton for",
                    "polygon": [
                        1.1606,
                        7.4384,
                        4.1838,
                        7.4384,
                        4.1838,
                        7.5911,
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                    "spans": [
                        {
                            "offset": 70285,
                            "length": 47
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                    ]
                },
                {
                    "content": "skipjack tuna, and were at their highest level since",
                    "polygon": [
                        1.1558,
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                    "spans": [
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                            "offset": 70333,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "1982.",
                    "polygon": [
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                    "spans": [
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                            "offset": 70386,
                            "length": 5
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                    ]
                },
                {
                    "content": "U.S. production of canned tuna declined slightly",
                    "polygon": [
                        1.3277,
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                    "spans": [
                        {
                            "offset": 70392,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "in 1988 reversing the recent increasing trend (Fig-",
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                    ]
                },
                {
                    "content": "ure 3). U.S. canners packed 31 million standard",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70493,
                            "length": 47
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                    ]
                },
                {
                    "content": "cases of tuna valued at over $960 million. U.S.",
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                            "offset": 70541,
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                    ]
                },
                {
                    "content": "imports of canned tuna reached a record high con-",
                    "polygon": [
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                    "spans": [
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                            "offset": 70589,
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                    ]
                },
                {
                    "content": "tinuing the increasing trend of recent years. Total",
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                        4.1838,
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                    ]
                },
                {
                    "content": "imports were 12.5 million standard cases of tuna,",
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                        {
                            "offset": 70691,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "valued at over $298 million. Wholesale list prices",
                    "polygon": [
                        1.1701,
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                        4.1934,
                        9.2622,
                        4.1934,
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                            "length": 50
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                    ]
                },
                {
                    "content": "in California for canned tuna in early 1988 was at",
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                        4.1982,
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                    "spans": [
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                    ]
                },
                {
                    "content": "late 1987 levels, but rose slightly by year's end.",
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                    "spans": [
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                    ]
                },
                {
                    "content": "35",
                    "polygon": [
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                            "length": 2
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                    ]
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                {
                    "content": "30",
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                },
                {
                    "content": "PRODUCTION (million standard cases)",
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                    ]
                },
                {
                    "content": "25",
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                            "offset": 70936,
                            "length": 2
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                    ]
                },
                {
                    "content": "A",
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                        {
                            "offset": 70939,
                            "length": 1
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                    ]
                },
                {
                    "content": "20",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70941,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
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                        2.0577,
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                        4.585,
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                    "spans": [
                        {
                            "offset": 70944,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                            "offset": 70947,
                            "length": 2
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                    ]
                },
                {
                    "content": "5",
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                    "spans": [
                        {
                            "offset": 70950,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                        2.8025,
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                    "spans": [
                        {
                            "offset": 70952,
                            "length": 1
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                    ]
                },
                {
                    "content": "1982",
                    "polygon": [
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                    "spans": [
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                            "offset": 70954,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1983",
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                    "spans": [
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                            "offset": 70959,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1984",
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                        5.4781,
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                            "offset": 70964,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
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                        2.8789,
                        6.0417,
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                    "spans": [
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                            "offset": 70969,
                            "length": 4
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                    ]
                },
                {
                    "content": "1986",
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                            "offset": 70974,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1987",
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                        6.8727,
                        2.8789,
                        6.868,
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                            "offset": 70979,
                            "length": 4
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                    ]
                },
                {
                    "content": "1988",
                    "polygon": [
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                    "spans": [
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                            "offset": 70984,
                            "length": 4
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                    ]
                },
                {
                    "content": "1.1",
                    "polygon": [
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                            "offset": 70989,
                            "length": 3
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                    ]
                },
                {
                    "content": "1.0",
                    "polygon": [
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                        3.1081,
                        4.6853,
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                        4.542,
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                    "spans": [
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                            "offset": 70993,
                            "length": 3
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                    ]
                },
                {
                    "content": "0.9",
                    "polygon": [
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                            "length": 3
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                    ]
                },
                {
                    "content": "VALUE (million U. S. dollars)",
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                {
                    "content": "0.8",
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                    "content": "0.7",
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                    ]
                },
                {
                    "content": "B",
                    "polygon": [
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                            "length": 1
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                {
                    "content": "0.6",
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                            "offset": 71041,
                            "length": 3
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                },
                {
                    "content": "0.5",
                    "polygon": [
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                            "offset": 71045,
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                },
                {
                    "content": "0.4",
                    "polygon": [
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                },
                {
                    "content": "0.3",
                    "polygon": [
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                            "length": 3
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                },
                {
                    "content": "0.2.",
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                            "length": 4
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                {
                    "content": "0.1",
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                            "length": 3
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                    ]
                },
                {
                    "content": "0.0",
                    "polygon": [
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                    "spans": [
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                            "offset": 71066,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "1982",
                    "polygon": [
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                    "spans": [
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                            "offset": 71070,
                            "length": 4
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                    ]
                },
                {
                    "content": "1983",
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                            "offset": 71075,
                            "length": 4
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                    ]
                },
                {
                    "content": "1984",
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                    "spans": [
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                            "offset": 71080,
                            "length": 4
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                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
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                        6.056,
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                    "spans": [
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                            "offset": 71085,
                            "length": 4
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                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
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                    "spans": [
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                            "length": 4
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                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
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                            "length": 4
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                    ]
                },
                {
                    "content": "1988",
                    "polygon": [
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                    "spans": [
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                            "offset": 71100,
                            "length": 4
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                    ]
                },
                {
                    "content": "YEAR",
                    "polygon": [
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                    "spans": [
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                            "offset": 71105,
                            "length": 4
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                    ]
                },
                {
                    "content": "Figure 3. U.S. production of canned tuna: A.",
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                        5.1944,
                        7.1402,
                        5.1944,
                        7.1402,
                        5.3234,
                        4.6232,
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                    "spans": [
                        {
                            "offset": 71110,
                            "length": 44
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                    ]
                },
                {
                    "content": "Volume, B. Value.",
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                        5.3377,
                        5.6166,
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                        4.6375,
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                    "spans": [
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                            "offset": 71155,
                            "length": 17
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                    ]
                },
                {
                    "content": "(W. Parks, FTS 893-7074)",
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                        6.0035,
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                    "spans": [
                        {
                            "offset": 71173,
                            "length": 24
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                    ]
                },
                {
                    "content": "STOCK ASSESSMENT AND",
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                        5.9774,
                        6.6626,
                        6.1254,
                        4.4799,
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                    "spans": [
                        {
                            "offset": 71198,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "IMPACT ANALYSIS PROGRAM",
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                        4.4847,
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                    ],
                    "spans": [
                        {
                            "offset": 71219,
                            "length": 23
                        }
                    ]
                },
                {
                    "content": "Pacific International Billfish Angler",
                    "polygon": [
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                        6.9253,
                        6.6506,
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                    "spans": [
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                            "offset": 71243,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "Survey",
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                    "spans": [
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                            "offset": 71281,
                            "length": 6
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                    ]
                },
                {
                    "content": "The Pacific International Billfish Angler Sur-",
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                    "spans": [
                        {
                            "offset": 71288,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "vey, which started in 1969, annually collects",
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                    "spans": [
                        {
                            "offset": 71335,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "information on billfish angler catch rates in the",
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                    "spans": [
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                            "offset": 71381,
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                        }
                    ]
                },
                {
                    "content": "Pacific and Indian Oceans. This is the 19th year",
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                    "spans": [
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                    ]
                },
                {
                    "content": "of the Survey. Results of the previous year's",
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                    "spans": [
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                            "offset": 71480,
                            "length": 45
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                    ]
                },
                {
                    "content": "Survey, determined from the responses from",
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                    "spans": [
                        {
                            "offset": 71526,
                            "length": 42
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                    ]
                },
                {
                    "content": "billfish anglers, are updated in each issue of the",
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                    "spans": [
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                    ]
                },
                {
                    "content": "Billfish Newsletter.",
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                    "content": "or Atlantic Ocean.",
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                    "content": "billfish. Species breakdown for the Pacific Ocean",
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                    "content": "catch was 997 blue marlin, 368 black marlin, 3,460",
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                    "content": "striped marlin, and 1,800 sailfish. For the Indian",
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                },
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                },
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                    "content": "striped marlin, and 313 sailfish. The catch rate for",
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                },
                {
                    "content": "the Pacific Ocean was 0.48 fish per day or 2.1",
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                },
                {
                    "content": "days per fish. For the Indian Ocean, the rate was",
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                },
                {
                    "content": "0.51 fish per day or 1.94 days per fish. These",
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                },
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                    "content": "catch rates are lower than those reported in",
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                    "content": "1986, 0.51 for the Pacific, and 0.66 for the",
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                    "content": "Indian Ocean.",
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                },
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                    "content": "The Pacific Ocean angler catch rate for 1987",
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                    "content": "is 13% below that determined for the 1969-1972",
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                    "content": "period (0.55 fish per day).",
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                    "content": "80",
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                    "content": "N.D.",
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                    "content": "2,874 1,769",
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                    "content": "1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986",
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                    "content": "important catch areas, 1969-1987.",
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                    "content": "Graphics showing CPUE (catch per angler day)",
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                    "content": "data are given for some fishing areas, for striped",
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                    "content": "marlin (Figure 4), blue marlin (Figure 5), black",
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                    "content": "marlin (Figure 6), and sailfish (Figure 7).",
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                    "content": "Table 1. Results of 1987 Billfish Angler Survey - More than",
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                    "content": "100 angler days reported.",
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                    "content": "Fishing No. of",
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                    "content": "Billfish/",
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                    "content": "39 DUBAI, UAE",
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                        10.0122
                    ],
                    "confidence": 0.998,
                    "span": {
                        "offset": 81534,
                        "length": 2
                    }
                },
                {
                    "content": "Biological",
                    "polygon": [
                        5.4161,
                        9.861,
                        6.0051,
                        9.8652,
                        6.0021,
                        10.0212,
                        5.413,
                        10.0147
                    ],
                    "confidence": 0.994,
                    "span": {
                        "offset": 81537,
                        "length": 10
                    }
                },
                {
                    "content": "Technicians",
                    "polygon": [
                        6.0734,
                        9.8657,
                        6.7711,
                        9.8706,
                        6.768,
                        10.0281,
                        6.0703,
                        10.0218
                    ],
                    "confidence": 0.994,
                    "span": {
                        "offset": 81548,
                        "length": 11
                    }
                },
                {
                    "content": "Randy",
                    "polygon": [
                        6.8444,
                        9.8712,
                        7.2372,
                        9.874,
                        7.2372,
                        10.0318,
                        6.8414,
                        10.0287
                    ],
                    "confidence": 0.998,
                    "span": {
                        "offset": 81560,
                        "length": 5
                    }
                },
                {
                    "content": "21",
                    "polygon": [
                        3.9776,
                        10.4965,
                        4.1224,
                        10.4965,
                        4.1242,
                        10.6041,
                        3.9776,
                        10.6066
                    ],
                    "confidence": 0.998,
                    "span": {
                        "offset": 81566,
                        "length": 2
                    }
                }
            ],
            "lines": [
                {
                    "content": "MULTISPECIES DATA COLLECTION",
                    "polygon": [
                        1.1057,
                        1.0291,
                        3.9776,
                        1.0339,
                        3.9776,
                        1.1918,
                        1.1057,
                        1.1822
                    ],
                    "spans": [
                        {
                            "offset": 77972,
                            "length": 28
                        }
                    ]
                },
                {
                    "content": "AND EVALUATION PROGRAM",
                    "polygon": [
                        1.0961,
                        1.2205,
                        3.4942,
                        1.2253,
                        3.4942,
                        1.3737,
                        1.0961,
                        1.3689
                    ],
                    "spans": [
                        {
                            "offset": 78001,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "Pacific Albacore Data Bases Updated",
                    "polygon": [
                        1.0961,
                        1.5316,
                        3.6904,
                        1.546,
                        3.6904,
                        1.6944,
                        1.0913,
                        1.6752
                    ],
                    "spans": [
                        {
                            "offset": 78024,
                            "length": 35
                        }
                    ]
                },
                {
                    "content": "Anthony Majors, Fishery Biologist and Christina",
                    "polygon": [
                        1.2493,
                        1.8045,
                        4.1068,
                        1.8092,
                        4.102,
                        1.9624,
                        1.2493,
                        1.9528
                    ],
                    "spans": [
                        {
                            "offset": 78060,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "Perrin, Computer Programmer, have finished up-",
                    "polygon": [
                        1.0818,
                        1.9624,
                        4.1068,
                        1.9816,
                        4.102,
                        2.1299,
                        1.0818,
                        2.106
                    ],
                    "spans": [
                        {
                            "offset": 78108,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "dating the Pacific albacore data bases with data",
                    "polygon": [
                        1.0913,
                        2.1251,
                        4.0973,
                        2.1347,
                        4.0973,
                        2.2831,
                        1.0913,
                        2.2735
                    ],
                    "spans": [
                        {
                            "offset": 78155,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "from the 1988 southern and northern fisheries.",
                    "polygon": [
                        1.0818,
                        2.2879,
                        4.0925,
                        2.2975,
                        4.0925,
                        2.4458,
                        1.0818,
                        2.4315
                    ],
                    "spans": [
                        {
                            "offset": 78204,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "Data are routinely collected for the northern fishery",
                    "polygon": [
                        1.0865,
                        2.4506,
                        4.0973,
                        2.4602,
                        4.0973,
                        2.6086,
                        1.0865,
                        2.5942
                    ],
                    "spans": [
                        {
                            "offset": 78251,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "by port samplers in California, Washington and",
                    "polygon": [
                        1.077,
                        2.6086,
                        4.1116,
                        2.6134,
                        4.1116,
                        2.7665,
                        1.077,
                        2.7617
                    ],
                    "spans": [
                        {
                            "offset": 78305,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "Oregon. Data for the southern fishery are collected",
                    "polygon": [
                        1.0818,
                        2.7761,
                        4.102,
                        2.7809,
                        4.102,
                        2.934,
                        1.0818,
                        2.9197
                    ],
                    "spans": [
                        {
                            "offset": 78352,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "by Gordon Yamasaki, Fishery Biologist, in",
                    "polygon": [
                        1.077,
                        2.934,
                        4.102,
                        2.9436,
                        4.102,
                        3.1016,
                        1.077,
                        3.0824
                    ],
                    "spans": [
                        {
                            "offset": 78404,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "American Samoa and by a sampler in Tahiti. Data",
                    "polygon": [
                        1.0722,
                        3.092,
                        4.0925,
                        3.1016,
                        4.0925,
                        3.2595,
                        1.0722,
                        3.2452
                    ],
                    "spans": [
                        {
                            "offset": 78446,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "are also submitted directly, from both fisheries, by",
                    "polygon": [
                        1.0722,
                        3.2547,
                        4.0925,
                        3.2643,
                        4.0925,
                        3.4222,
                        1.0722,
                        3.4079
                    ],
                    "spans": [
                        {
                            "offset": 78494,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "vessel captains.",
                    "polygon": [
                        1.077,
                        3.427,
                        2.0008,
                        3.427,
                        2.0008,
                        3.5706,
                        1.077,
                        3.5658
                    ],
                    "spans": [
                        {
                            "offset": 78547,
                            "length": 16
                        }
                    ]
                },
                {
                    "content": "Data for the northern fishery consists of 268",
                    "polygon": [
                        1.2397,
                        3.7381,
                        4.0925,
                        3.7525,
                        4.0925,
                        3.9009,
                        1.2397,
                        3.8817
                    ],
                    "spans": [
                        {
                            "offset": 78564,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "logbooks, 168 vessel characteristics, and 248",
                    "polygon": [
                        1.0674,
                        3.9009,
                        4.0925,
                        3.9105,
                        4.0925,
                        4.054,
                        1.0674,
                        4.0493
                    ],
                    "spans": [
                        {
                            "offset": 78610,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "length-frequency samples totaling over 21,000 fish.",
                    "polygon": [
                        1.0674,
                        4.0684,
                        4.0829,
                        4.0732,
                        4.0829,
                        4.2264,
                        1.0674,
                        4.2168
                    ],
                    "spans": [
                        {
                            "offset": 78656,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "Preliminary summaries of these data show that the",
                    "polygon": [
                        1.0722,
                        4.2264,
                        4.0925,
                        4.2311,
                        4.0925,
                        4.3795,
                        1.0722,
                        4.3699
                    ],
                    "spans": [
                        {
                            "offset": 78708,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "average sizes of fish sampled have decreased from",
                    "polygon": [
                        1.0722,
                        4.3891,
                        4.0925,
                        4.3939,
                        4.0925,
                        4.547,
                        1.0722,
                        4.5423
                    ],
                    "spans": [
                        {
                            "offset": 78758,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "14.9 lbs in 1987 to 12.4 lbs in 1988 and catch rates",
                    "polygon": [
                        1.077,
                        4.547,
                        4.0973,
                        4.5566,
                        4.0925,
                        4.7002,
                        1.077,
                        4.6858
                    ],
                    "spans": [
                        {
                            "offset": 78808,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "in fish-per-standard-days fishing have increased",
                    "polygon": [
                        1.0674,
                        4.7098,
                        4.0877,
                        4.7194,
                        4.0829,
                        4.8677,
                        1.0674,
                        4.8534
                    ],
                    "spans": [
                        {
                            "offset": 78861,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "from 70 in 1987 to 117 in 1988.",
                    "polygon": [
                        1.0626,
                        4.8677,
                        3.0299,
                        4.8725,
                        3.0299,
                        5.0113,
                        1.0626,
                        5.0065
                    ],
                    "spans": [
                        {
                            "offset": 78910,
                            "length": 31
                        }
                    ]
                },
                {
                    "content": "Other than two experimental years of fishing in",
                    "polygon": [
                        1.2397,
                        5.1932,
                        4.0925,
                        5.2123,
                        4.0925,
                        5.3607,
                        1.2397,
                        5.3368
                    ],
                    "spans": [
                        {
                            "offset": 78942,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "1986 and 1987, 1988 was the first year of substan-",
                    "polygon": [
                        1.0722,
                        5.3559,
                        4.0829,
                        5.3703,
                        4.0829,
                        5.5187,
                        1.0722,
                        5.4947
                    ],
                    "spans": [
                        {
                            "offset": 78990,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "tial U.S. participation in the south Pacific albacore",
                    "polygon": [
                        1.0626,
                        5.5187,
                        4.0877,
                        5.5235,
                        4.0877,
                        5.6718,
                        1.0626,
                        5.6623
                    ],
                    "spans": [
                        {
                            "offset": 79041,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "fishery. Data for the austral fishery consist of 15",
                    "polygon": [
                        1.0626,
                        5.6814,
                        4.0781,
                        5.691,
                        4.0781,
                        5.8394,
                        1.0626,
                        5.825
                    ],
                    "spans": [
                        {
                            "offset": 79095,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "logbooks and 58 length-frequency samples of over",
                    "polygon": [
                        1.0578,
                        5.8394,
                        4.0877,
                        5.8537,
                        4.0877,
                        6.0069,
                        1.0578,
                        5.9877
                    ],
                    "spans": [
                        {
                            "offset": 79147,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "4,000 fish. Preliminary summaries show that the",
                    "polygon": [
                        1.0722,
                        5.9973,
                        4.0877,
                        6.0165,
                        4.0877,
                        6.16,
                        1.0722,
                        6.1457
                    ],
                    "spans": [
                        {
                            "offset": 79196,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "average sizes of fish sampled have decreased from",
                    "polygon": [
                        1.0626,
                        6.1648,
                        4.0877,
                        6.1648,
                        4.0877,
                        6.3132,
                        1.0626,
                        6.3132
                    ],
                    "spans": [
                        {
                            "offset": 79244,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "17 lbs in 1987 to 15 lbs in 1988 and catch rates, in",
                    "polygon": [
                        1.0722,
                        6.3228,
                        4.0829,
                        6.3324,
                        4.0829,
                        6.4807,
                        1.0722,
                        6.4616
                    ],
                    "spans": [
                        {
                            "offset": 79294,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "fish-per-standard-days fishing, decreased from 316",
                    "polygon": [
                        1.0626,
                        6.4903,
                        4.0781,
                        6.4903,
                        4.0781,
                        6.6387,
                        1.0626,
                        6.6339
                    ],
                    "spans": [
                        {
                            "offset": 79347,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "in 1987 to 242 in 1988.",
                    "polygon": [
                        1.0626,
                        6.6483,
                        2.5034,
                        6.6483,
                        2.5034,
                        6.7871,
                        1.0626,
                        6.7823
                    ],
                    "spans": [
                        {
                            "offset": 79398,
                            "length": 23
                        }
                    ]
                },
                {
                    "content": "The data for both fisheries are being summarized",
                    "polygon": [
                        1.2349,
                        6.9737,
                        4.0781,
                        6.9929,
                        4.0781,
                        7.1317,
                        1.2349,
                        7.1077
                    ],
                    "spans": [
                        {
                            "offset": 79422,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "by Majors and Perrin as a Center Administrative",
                    "polygon": [
                        1.053,
                        7.1317,
                        4.0829,
                        7.1413,
                        4.0829,
                        7.2848,
                        1.053,
                        7.2753
                    ],
                    "spans": [
                        {
                            "offset": 79471,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "Report. (A. Majors, FTS 893- 7077)",
                    "polygon": [
                        1.0578,
                        7.2992,
                        3.2548,
                        7.304,
                        3.2548,
                        7.4524,
                        1.0578,
                        7.4476
                    ],
                    "spans": [
                        {
                            "offset": 79519,
                            "length": 34
                        }
                    ]
                },
                {
                    "content": "Seychelles Purse Seine Fishery Data",
                    "polygon": [
                        1.0578,
                        7.6199,
                        3.5564,
                        7.639,
                        3.5564,
                        7.7922,
                        1.0578,
                        7.7731
                    ],
                    "spans": [
                        {
                            "offset": 79554,
                            "length": 35
                        }
                    ]
                },
                {
                    "content": "Al Coan, Mathematical Statistician, reports that",
                    "polygon": [
                        1.2253,
                        7.8879,
                        4.0829,
                        7.9119,
                        4.0829,
                        8.0602,
                        1.2206,
                        8.0363
                    ],
                    "spans": [
                        {
                            "offset": 79590,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "data for purse seiners fishing in the area around the",
                    "polygon": [
                        1.0482,
                        8.065,
                        4.0781,
                        8.0698,
                        4.0781,
                        8.223,
                        1.0482,
                        8.2134
                    ],
                    "spans": [
                        {
                            "offset": 79639,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "Seychelles for the last quarter of 1988, have been",
                    "polygon": [
                        1.0482,
                        8.2182,
                        4.0685,
                        8.2278,
                        4.0685,
                        8.3809,
                        1.0482,
                        8.3713
                    ],
                    "spans": [
                        {
                            "offset": 79693,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "received from the Seychelles Fishing Authority and",
                    "polygon": [
                        1.0482,
                        8.3857,
                        4.0733,
                        8.3953,
                        4.0685,
                        8.5484,
                        1.0482,
                        8.5293
                    ],
                    "spans": [
                        {
                            "offset": 79744,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "added to Center data bases. The data bases are",
                    "polygon": [
                        1.053,
                        8.5437,
                        4.0829,
                        8.5532,
                        4.0781,
                        8.7016,
                        1.053,
                        8.6825
                    ],
                    "spans": [
                        {
                            "offset": 79795,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "available on PC diskettes and are in LOTUS spread-",
                    "polygon": [
                        1.053,
                        8.7064,
                        4.0733,
                        8.7208,
                        4.0733,
                        8.8739,
                        1.053,
                        8.85
                    ],
                    "spans": [
                        {
                            "offset": 79842,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "sheets.",
                    "polygon": [
                        1.0482,
                        8.8787,
                        1.4551,
                        8.8787,
                        1.4551,
                        8.9936,
                        1.0482,
                        8.9984
                    ],
                    "spans": [
                        {
                            "offset": 79893,
                            "length": 7
                        }
                    ]
                },
                {
                    "content": "The 1988 fishing season was dominated by ves-",
                    "polygon": [
                        1.2253,
                        9.1946,
                        4.0733,
                        9.209,
                        4.0733,
                        9.3526,
                        1.2253,
                        9.3382
                    ],
                    "spans": [
                        {
                            "offset": 79901,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "sels from France (20 vessels) and Spain (18 ves-",
                    "polygon": [
                        1.0435,
                        9.3573,
                        4.059,
                        9.3669,
                        4.059,
                        9.5201,
                        1.0435,
                        9.5009
                    ],
                    "spans": [
                        {
                            "offset": 79947,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "sels). Also participating in the fishery were vessels",
                    "polygon": [
                        1.0482,
                        9.5201,
                        4.0685,
                        9.5296,
                        4.0685,
                        9.6828,
                        1.0482,
                        9.6685
                    ],
                    "spans": [
                        {
                            "offset": 79996,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "from the USSR (4), Mauritius (3), Panama (1),",
                    "polygon": [
                        1.0482,
                        9.678,
                        4.059,
                        9.6924,
                        4.059,
                        9.8455,
                        1.0435,
                        9.8264
                    ],
                    "spans": [
                        {
                            "offset": 80050,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Japan (1) and India (1). Catches of yellowfin and",
                    "polygon": [
                        1.0435,
                        9.8408,
                        4.0638,
                        9.8503,
                        4.0638,
                        10.0083,
                        1.0435,
                        9.9987
                    ],
                    "spans": [
                        {
                            "offset": 80096,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "skipjack tunas in 1988 reached a record high of",
                    "polygon": [
                        4.4227,
                        1.0147,
                        7.2851,
                        1.0243,
                        7.2851,
                        1.1774,
                        4.418,
                        1.1583
                    ],
                    "spans": [
                        {
                            "offset": 80146,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "213,000 mt, increasing 32% over catches in",
                    "polygon": [
                        4.4227,
                        1.1679,
                        7.2755,
                        1.1822,
                        7.2755,
                        1.3306,
                        4.4227,
                        1.3115
                    ],
                    "spans": [
                        {
                            "offset": 80194,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "1987 (Figure 8). The percentage of skipjack and",
                    "polygon": [
                        4.4323,
                        1.321,
                        7.2851,
                        1.3402,
                        7.2803,
                        1.4933,
                        4.4323,
                        1.479
                    ],
                    "spans": [
                        {
                            "offset": 80237,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "yellowfin tuna in the catch was 53% and 47%",
                    "polygon": [
                        4.418,
                        1.4886,
                        7.2659,
                        1.4933,
                        7.2659,
                        1.6417,
                        4.418,
                        1.6369
                    ],
                    "spans": [
                        {
                            "offset": 80285,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "respectively and returned to levels recorded in",
                    "polygon": [
                        4.4132,
                        1.6513,
                        7.2755,
                        1.6513,
                        7.2755,
                        1.8045,
                        4.4132,
                        1.7997
                    ],
                    "spans": [
                        {
                            "offset": 80329,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "the period 1981-1985. Yellowfin tuna catches",
                    "polygon": [
                        4.418,
                        1.8045,
                        7.2803,
                        1.814,
                        7.2755,
                        1.9672,
                        4.418,
                        1.9528
                    ],
                    "spans": [
                        {
                            "offset": 80377,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "showed the highest percent increase, 64%, over",
                    "polygon": [
                        4.4132,
                        1.972,
                        7.2803,
                        1.9863,
                        7.2803,
                        2.1395,
                        4.4132,
                        2.1204
                    ],
                    "spans": [
                        {
                            "offset": 80422,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "1987 yellowfin catches, whereas skipjack",
                    "polygon": [
                        4.4323,
                        2.1299,
                        7.2803,
                        2.1539,
                        7.2755,
                        2.3022,
                        4.4323,
                        2.2735
                    ],
                    "spans": [
                        {
                            "offset": 80469,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "catches only increased 13%.",
                    "polygon": [
                        4.4084,
                        2.2975,
                        6.1124,
                        2.2975,
                        6.1124,
                        2.4458,
                        4.4084,
                        2.441
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                    "spans": [
                        {
                            "offset": 80510,
                            "length": 27
                        }
                    ]
                },
                {
                    "content": "220",
                    "polygon": [
                        4.5616,
                        2.6277,
                        4.6573,
                        2.6325,
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                        2.6947,
                        4.5568,
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                    "spans": [
                        {
                            "offset": 80538,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "200",
                    "polygon": [
                        4.5568,
                        2.7904,
                        4.6573,
                        2.7904,
                        4.6573,
                        2.8479,
                        4.5568,
                        2.8479
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                    "spans": [
                        {
                            "offset": 80542,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "180",
                    "polygon": [
                        4.5616,
                        2.9436,
                        4.6573,
                        2.9436,
                        4.6573,
                        3.001,
                        4.5616,
                        3.001
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                    "spans": [
                        {
                            "offset": 80546,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "160",
                    "polygon": [
                        4.5663,
                        3.0968,
                        4.6621,
                        3.1016,
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                        3.1542,
                        4.5663,
                        3.1542
                    ],
                    "spans": [
                        {
                            "offset": 80550,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "TOTAL",
                    "polygon": [
                        6.4092,
                        3.1973,
                        6.5671,
                        3.1973,
                        6.5671,
                        3.2595,
                        6.4139,
                        3.2595
                    ],
                    "spans": [
                        {
                            "offset": 80554,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "140",
                    "polygon": [
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                        3.2499,
                        4.6621,
                        3.2547,
                        4.6621,
                        3.3122,
                        4.5663,
                        3.3122
                    ],
                    "spans": [
                        {
                            "offset": 80560,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "CATCH (MT)",
                    "polygon": [
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                        3.6903,
                        4.3462,
                        3.3361,
                        4.418,
                        3.3361,
                        4.4084,
                        3.6903
                    ],
                    "spans": [
                        {
                            "offset": 80564,
                            "length": 10
                        }
                    ]
                },
                {
                    "content": "(Thousands)",
                    "polygon": [
                        4.3988,
                        3.6951,
                        4.394,
                        3.3361,
                        4.4563,
                        3.3361,
                        4.461,
                        3.6951
                    ],
                    "spans": [
                        {
                            "offset": 80575,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "120",
                    "polygon": [
                        4.5711,
                        3.4127,
                        4.6525,
                        3.4127,
                        4.6573,
                        3.4605,
                        4.5759,
                        3.4653
                    ],
                    "spans": [
                        {
                            "offset": 80587,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "100",
                    "polygon": [
                        4.5663,
                        3.5658,
                        4.6573,
                        3.5658,
                        4.6573,
                        3.6137,
                        4.5711,
                        3.6185
                    ],
                    "spans": [
                        {
                            "offset": 80591,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "SKIPJACK",
                    "polygon": [
                        6.3565,
                        3.6328,
                        6.6102,
                        3.6328,
                        6.6102,
                        3.6951,
                        6.3565,
                        3.6903
                    ],
                    "spans": [
                        {
                            "offset": 80595,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "80",
                    "polygon": [
                        4.5951,
                        3.719,
                        4.6525,
                        3.719,
                        4.6573,
                        3.7669,
                        4.5951,
                        3.7669
                    ],
                    "spans": [
                        {
                            "offset": 80604,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "60",
                    "polygon": [
                        4.5951,
                        3.8722,
                        4.6621,
                        3.877,
                        4.6669,
                        3.9296,
                        4.5951,
                        3.9248
                    ],
                    "spans": [
                        {
                            "offset": 80607,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "YELLOWFIN",
                    "polygon": [
                        6.3469,
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                        6.6293,
                        3.9631,
                        6.6293,
                        4.0205,
                        6.3469,
                        4.0158
                    ],
                    "spans": [
                        {
                            "offset": 80610,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "40",
                    "polygon": [
                        4.5951,
                        4.0253,
                        4.6621,
                        4.0301,
                        4.6669,
                        4.0828,
                        4.5951,
                        4.0828
                    ],
                    "spans": [
                        {
                            "offset": 80620,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
                        4.5951,
                        4.1785,
                        4.6669,
                        4.1833,
                        4.6669,
                        4.2359,
                        4.5903,
                        4.2359
                    ],
                    "spans": [
                        {
                            "offset": 80623,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
                        4.6286,
                        4.3412,
                        4.6764,
                        4.346,
                        4.6764,
                        4.3939,
                        4.6238,
                        4.3939
                    ],
                    "spans": [
                        {
                            "offset": 80626,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "1981",
                    "polygon": [
                        4.6669,
                        4.4178,
                        4.7961,
                        4.4274,
                        4.7961,
                        4.4752,
                        4.6669,
                        4.48
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                    "spans": [
                        {
                            "offset": 80628,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1982",
                    "polygon": [
                        5.0211,
                        4.4226,
                        5.1551,
                        4.4274,
                        5.1599,
                        4.48,
                        5.0211,
                        4.4848
                    ],
                    "spans": [
                        {
                            "offset": 80633,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1983",
                    "polygon": [
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                        4.4274,
                        5.5045,
                        4.4274,
                        5.5045,
                        4.4752,
                        5.3705,
                        4.48
                    ],
                    "spans": [
                        {
                            "offset": 80638,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1984",
                    "polygon": [
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                        5.8587,
                        4.4322,
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                        4.4848
                    ],
                    "spans": [
                        {
                            "offset": 80643,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
                        6.0693,
                        4.4274,
                        6.1985,
                        4.4274,
                        6.1985,
                        4.48,
                        6.0693,
                        4.48
                    ],
                    "spans": [
                        {
                            "offset": 80648,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
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                        6.5575,
                        4.4322,
                        6.5575,
                        4.4848,
                        6.4235,
                        4.4848
                    ],
                    "spans": [
                        {
                            "offset": 80653,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
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                        4.4322,
                        6.9117,
                        4.4322,
                        6.9117,
                        4.4848,
                        6.7777,
                        4.4848
                    ],
                    "spans": [
                        {
                            "offset": 80658,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1988",
                    "polygon": [
                        7.1319,
                        4.437,
                        7.2564,
                        4.437,
                        7.2516,
                        4.4896,
                        7.1319,
                        4.4944
                    ],
                    "spans": [
                        {
                            "offset": 80663,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "YEAR",
                    "polygon": [
                        5.7869,
                        4.5423,
                        5.9305,
                        4.547,
                        5.9305,
                        4.6045,
                        5.7869,
                        4.6093
                    ],
                    "spans": [
                        {
                            "offset": 80668,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "Figure 8: Purse seine catches of yellowfin and",
                    "polygon": [
                        4.5328,
                        4.6715,
                        7.108,
                        4.6811,
                        7.108,
                        4.8103,
                        4.5328,
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                    ],
                    "spans": [
                        {
                            "offset": 80673,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "skipjack tunas in the western Indian Ocean.",
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                    ],
                    "spans": [
                        {
                            "offset": 80720,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "23",
                    "polygon": [
                        4.5903,
                        5.0783,
                        4.6621,
                        5.0831,
                        4.6669,
                        5.1453,
                        4.5855,
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                    ],
                    "spans": [
                        {
                            "offset": 80764,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "22",
                    "polygon": [
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                        5.1645,
                        4.6669,
                        5.2219,
                        4.5759,
                        5.2219
                    ],
                    "spans": [
                        {
                            "offset": 80767,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "21",
                    "polygon": [
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                        5.2794,
                        4.6477,
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                        4.5759,
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                    ],
                    "spans": [
                        {
                            "offset": 80770,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "20",
                    "polygon": [
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                        5.3559,
                        4.6573,
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                        4.5855,
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                    "spans": [
                        {
                            "offset": 80773,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "19",
                    "polygon": [
                        4.5951,
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                        5.4565,
                        4.6573,
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                    ],
                    "spans": [
                        {
                            "offset": 80776,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "METRIC TONS PER DAY FISHED",
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                        4.394,
                        5.4852,
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                    "spans": [
                        {
                            "offset": 80779,
                            "length": 26
                        }
                    ]
                },
                {
                    "content": "18",
                    "polygon": [
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                        5.6144
                    ],
                    "spans": [
                        {
                            "offset": 80806,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "TOTAL",
                    "polygon": [
                        6.615,
                        5.5282,
                        6.7777,
                        5.5378,
                        6.7729,
                        5.5905,
                        6.6198,
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                    ],
                    "spans": [
                        {
                            "offset": 80809,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "17",
                    "polygon": [
                        4.5951,
                        5.6431,
                        4.6573,
                        5.6479,
                        4.6573,
                        5.7053,
                        4.5951,
                        5.7006
                    ],
                    "spans": [
                        {
                            "offset": 80815,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "16",
                    "polygon": [
                        4.5998,
                        5.7388,
                        4.6573,
                        5.7436,
                        4.6573,
                        5.7963,
                        4.5951,
                        5.7963
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                    "spans": [
                        {
                            "offset": 80818,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
                        4.5951,
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                        5.8346,
                        4.6573,
                        5.892,
                        4.5951,
                        5.892
                    ],
                    "spans": [
                        {
                            "offset": 80821,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "14",
                    "polygon": [
                        4.5951,
                        5.9303,
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                        5.9303,
                        4.6621,
                        5.9877,
                        4.5951,
                        5.9877
                    ],
                    "spans": [
                        {
                            "offset": 80824,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "15",
                    "polygon": [
                        4.5951,
                        6.026,
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                        6.0308,
                        4.6573,
                        6.0835,
                        4.5951,
                        6.0835
                    ],
                    "spans": [
                        {
                            "offset": 80827,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "12",
                    "polygon": [
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                        6.117,
                        4.6621,
                        6.1218,
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                        6.1792,
                        4.5951,
                        6.1792
                    ],
                    "spans": [
                        {
                            "offset": 80830,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SKIPJACK",
                    "polygon": [
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                        6.1792,
                        6.8256,
                        6.2366,
                        6.5719,
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                    ],
                    "spans": [
                        {
                            "offset": 80833,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "11",
                    "polygon": [
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                        6.2749,
                        4.5903,
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                    "spans": [
                        {
                            "offset": 80842,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "10",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 80845,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "9",
                    "polygon": [
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                        6.4137,
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                    "spans": [
                        {
                            "offset": 80848,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "8",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 80850,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "YELLOWFIN",
                    "polygon": [
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                        6.5575,
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                    ],
                    "spans": [
                        {
                            "offset": 80852,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "7",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 80862,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "6",
                    "polygon": [
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                        6.7009,
                        4.6621,
                        6.744,
                        4.6286,
                        6.744
                    ],
                    "spans": [
                        {
                            "offset": 80864,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "5",
                    "polygon": [
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                        6.7966,
                        4.6669,
                        6.8349,
                        4.6286,
                        6.8397
                    ],
                    "spans": [
                        {
                            "offset": 80866,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "1983",
                    "polygon": [
                        4.6573,
                        6.8732,
                        4.7961,
                        6.878,
                        4.7865,
                        6.9307,
                        4.6621,
                        6.9307
                    ],
                    "spans": [
                        {
                            "offset": 80868,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1984",
                    "polygon": [
                        5.1647,
                        6.8828,
                        5.2987,
                        6.8828,
                        5.2939,
                        6.9307,
                        5.1647,
                        6.9307
                    ],
                    "spans": [
                        {
                            "offset": 80873,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
                        5.6529,
                        6.878,
                        5.7869,
                        6.8828,
                        5.7869,
                        6.9354,
                        5.6481,
                        6.9307
                    ],
                    "spans": [
                        {
                            "offset": 80878,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
                        6.1363,
                        6.8828,
                        6.2799,
                        6.8876,
                        6.2799,
                        6.9402,
                        6.1363,
                        6.9402
                    ],
                    "spans": [
                        {
                            "offset": 80883,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
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                        6.8828,
                        6.7729,
                        6.8876,
                        6.7729,
                        6.9402,
                        6.6341,
                        6.9402
                    ],
                    "spans": [
                        {
                            "offset": 80888,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1989",
                    "polygon": [
                        7.1367,
                        6.8876,
                        7.2564,
                        6.8876,
                        7.2516,
                        6.9402,
                        7.1367,
                        6.9402
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                    "spans": [
                        {
                            "offset": 80893,
                            "length": 4
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                    ]
                },
                {
                    "content": "YEAR",
                    "polygon": [
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                        5.9305,
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                        5.9353,
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                    "spans": [
                        {
                            "offset": 80898,
                            "length": 4
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                    ]
                },
                {
                    "content": "Figure 9: Purse seine catch rates in metric tons",
                    "polygon": [
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                        7.0984,
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                    "spans": [
                        {
                            "offset": 80903,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "per day fished for the western Indian Ocean.",
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                    "spans": [
                        {
                            "offset": 80952,
                            "length": 44
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                        "length": 5
                    }
                },
                {
                    "content": "of",
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                    "confidence": 0.998,
                    "span": {
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                        "length": 2
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                },
                {
                    "content": "successful",
                    "polygon": [
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                    "confidence": 0.995,
                    "span": {
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                    }
                },
                {
                    "content": "parturition",
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                    "confidence": 0.995,
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                },
                {
                    "content": "with",
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                    "confidence": 0.992,
                    "span": {
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                    }
                },
                {
                    "content": "oceanographic",
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                    "confidence": 0.993,
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                    }
                },
                {
                    "content": "conditions",
                    "polygon": [
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                    "confidence": 0.993,
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                    }
                },
                {
                    "content": "in",
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                    "confidence": 0.992,
                    "span": {
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                        "length": 2
                    }
                },
                {
                    "content": "an",
                    "polygon": [
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                    "confidence": 0.999,
                    "span": {
                        "offset": 85517,
                        "length": 2
                    }
                },
                {
                    "content": "attempt",
                    "polygon": [
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                    "confidence": 0.995,
                    "span": {
                        "offset": 85520,
                        "length": 7
                    }
                },
                {
                    "content": "to",
                    "polygon": [
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                    "confidence": 0.995,
                    "span": {
                        "offset": 85528,
                        "length": 2
                    }
                },
                {
                    "content": "22",
                    "polygon": [
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                    "confidence": 0.996,
                    "span": {
                        "offset": 85531,
                        "length": 2
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                },
                {
                    "content": "0",
                    "polygon": [
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                    "confidence": 0.288,
                    "span": {
                        "offset": 85534,
                        "length": 1
                    }
                }
            ],
            "lines": [
                {
                    "content": "Rasmussen and Mike Trianni and placed into the",
                    "polygon": [
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                        4.0933,
                        1.1411,
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                    "spans": [
                        {
                            "offset": 81569,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "tuna/dolphin database. This database contains in-",
                    "polygon": [
                        1.0794,
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                        4.0837,
                        1.1649,
                        4.0837,
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                    "spans": [
                        {
                            "offset": 81616,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "formation used to investigate the distribution,",
                    "polygon": [
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                        1.332,
                        4.0837,
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                    "spans": [
                        {
                            "offset": 81666,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "abundance, mortality and life history of the dolphin",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 81714,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "stocks involved in the eastern Pacific yellowfin tuna",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 81767,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "fishery.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 81821,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "In 1988, NMFS observers were on board for 31",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 81830,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "of the 60 U.S. fishing trips and observed a total of",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 81875,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "847 sets on dolphins. Observers counted a total of",
                    "polygon": [
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                        4.1076,
                        2.4826,
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                    "spans": [
                        {
                            "offset": 81928,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "3,373 dolphins killed in these sets for a dolphin kill",
                    "polygon": [
                        1.0986,
                        2.6545,
                        4.1028,
                        2.645,
                        4.1028,
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                    "spans": [
                        {
                            "offset": 81979,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "per set rate of 4.00 animals and a kill per ton of tuna",
                    "polygon": [
                        1.0938,
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                    "spans": [
                        {
                            "offset": 82034,
                            "length": 55
                        }
                    ]
                },
                {
                    "content": "rate of 0.23. These rates are slightly higher than",
                    "polygon": [
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                        2.9792,
                        4.0981,
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                    "spans": [
                        {
                            "offset": 82090,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "those observed in 1987 of 3.00 animals per set and",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82141,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "0.18 animals per ton. (A. Jackson, FTS 893-7048)",
                    "polygon": [
                        1.1081,
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                        4.0981,
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                    "spans": [
                        {
                            "offset": 82192,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "TIBURON LABORATORY",
                    "polygon": [
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                        3.8449,
                        3.7383,
                        3.8497,
                        3.9102,
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                    "spans": [
                        {
                            "offset": 82241,
                            "length": 18
                        }
                    ]
                },
                {
                    "content": "Tiburon, California",
                    "polygon": [
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                        4.2062,
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                    "spans": [
                        {
                            "offset": 82260,
                            "length": 19
                        }
                    ]
                },
                {
                    "content": "GROUNDFISH ANALYSIS",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82280,
                            "length": 19
                        }
                    ]
                },
                {
                    "content": "INVESTIGATIONS",
                    "polygon": [
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                        4.7504,
                        2.5314,
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                        1.1129,
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                    "spans": [
                        {
                            "offset": 82300,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Covariation of Daily Growth and Birthdate",
                    "polygon": [
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                        4.0503,
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                    "spans": [
                        {
                            "offset": 82315,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "Distributions of Four Juvenile Rockfish",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82357,
                            "length": 39
                        }
                    ]
                },
                {
                    "content": "(Sebastes) Species",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82397,
                            "length": 18
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                    ]
                },
                {
                    "content": "Surveys of pelagic juvenile rockfish (Sebastes",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82416,
                            "length": 46
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                    ]
                },
                {
                    "content": "sp.) inhabiting the coastal waters off central",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82463,
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                    ]
                },
                {
                    "content": "California have been conducted since 1983 by the",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82510,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "Groundfish Analysis Investigation. Midwater",
                    "polygon": [
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                        4.1267,
                        6.1016,
                        4.1267,
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                    "spans": [
                        {
                            "offset": 82559,
                            "length": 43
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                    ]
                },
                {
                    "content": "trawls have been deployed at night along transects",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82603,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "between Cypress Pt. and Pt. Reyes aboard the",
                    "polygon": [
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                    "spans": [
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                            "offset": 82654,
                            "length": 44
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                    ]
                },
                {
                    "content": "NOAA Ship David Starr Jordan in late spring each",
                    "polygon": [
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                    "spans": [
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                            "offset": 82699,
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                    ]
                },
                {
                    "content": "year. One aspect of this research has been to",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 82748,
                            "length": 45
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                    ]
                },
                {
                    "content": "determine the daily age and growth of juvenile",
                    "polygon": [
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                    "spans": [
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                            "offset": 82794,
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                    ]
                },
                {
                    "content": "rockfish by counting the increments on their",
                    "polygon": [
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                    "spans": [
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                            "offset": 82841,
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                    ]
                },
                {
                    "content": "otoliths. It is thought that growth during early life",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "history plays an important role in determining sur-",
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                    "spans": [
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                            "offset": 82940,
                            "length": 51
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                    ]
                },
                {
                    "content": "vival and year class strength. The following sum-",
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                    ]
                },
                {
                    "content": "marizes some results concerning the daily growth",
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                    "spans": [
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                            "offset": 83042,
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                    ]
                },
                {
                    "content": "and birthdate distributions of those species com-",
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                    "spans": [
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                            "offset": 83091,
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                    ]
                },
                {
                    "content": "pleted thus far, i.e. shortbelly rockfish (Sebastes",
                    "polygon": [
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                    "spans": [
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                            "offset": 83141,
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                    ]
                },
                {
                    "content": "jordani), bocaccio (S. paucispinis), yellowtail rock-",
                    "polygon": [
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                    "spans": [
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                            "offset": 83193,
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                    ]
                },
                {
                    "content": "fish (S. flavidus), and widow rockfish (S. en-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83247,
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                    ]
                },
                {
                    "content": "tomelas).",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83294,
                            "length": 9
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                    ]
                },
                {
                    "content": "For comparative purposes, linear regressions",
                    "polygon": [
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                        8.947,
                        4.1458,
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                    "spans": [
                        {
                            "offset": 83304,
                            "length": 44
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                    ]
                },
                {
                    "content": "were used to describe growth, although in some",
                    "polygon": [
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                        9.1189,
                        4.1554,
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                    "spans": [
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                            "offset": 83349,
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                    ]
                },
                {
                    "content": "cases non-linear models such as the Gompertz",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83396,
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                    ]
                },
                {
                    "content": "equation fit the data slightly better. Growth rates",
                    "polygon": [
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                    "spans": [
                        {
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                    ]
                },
                {
                    "content": "have been observed to covary both among species",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "and years. For example, bocaccio grow more",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83541,
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                    ]
                },
                {
                    "content": "rapidly than shortbelly rockfish in a given year,",
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                    "spans": [
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                    ]
                },
                {
                    "content": "whereas 1987 was generally a better year for",
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                    "spans": [
                        {
                            "offset": 83634,
                            "length": 44
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                    ]
                },
                {
                    "content": "growth than was 1986. To develop a stand-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83679,
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                    ]
                },
                {
                    "content": "ardized measure of annual growth conditions,",
                    "polygon": [
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                    "spans": [
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                            "offset": 83721,
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                    ]
                },
                {
                    "content": "length was estimated at a standard age for each",
                    "polygon": [
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                    "spans": [
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                            "offset": 83766,
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                    ]
                },
                {
                    "content": "of the four species in each year (Figure 1). The",
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                    "spans": [
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                            "offset": 83814,
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                    ]
                },
                {
                    "content": "standard age selected for each species depended",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83863,
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                    ]
                },
                {
                    "content": "on the range of ages encountered among years.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 83911,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Note the covariation in length- at-age among the",
                    "polygon": [
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                    "spans": [
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                            "offset": 83957,
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                    ]
                },
                {
                    "content": "four species. It would appear that environmen-",
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                    ]
                },
                {
                    "content": "tal conditions affecting growth in any given year",
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                    ]
                },
                {
                    "content": "are experienced similarly by all the species",
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                    "spans": [
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                            "offset": 84103,
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                    ]
                },
                {
                    "content": "studied here.",
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                    "spans": [
                        {
                            "offset": 84148,
                            "length": 13
                        }
                    ]
                },
                {
                    "content": "60.0",
                    "polygon": [
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                        4.805,
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                    "spans": [
                        {
                            "offset": 84162,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "Standardized Length at Age (mm)",
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                        4.5088,
                        3.3086,
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                    "spans": [
                        {
                            "offset": 84167,
                            "length": 31
                        }
                    ]
                },
                {
                    "content": "A",
                    "polygon": [
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                        3.6332,
                        5.531,
                        3.7096,
                        5.4736,
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                    "spans": [
                        {
                            "offset": 84199,
                            "length": 1
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                    ]
                },
                {
                    "content": "50.0-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 84201,
                            "length": 5
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                    ]
                },
                {
                    "content": "8",
                    "polygon": [
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                        5.8701,
                        3.9484,
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                        4.0152,
                        5.8223,
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                    "spans": [
                        {
                            "offset": 84207,
                            "length": 1
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                    ]
                },
                {
                    "content": "000",
                    "polygon": [
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                        6.8874,
                        4.0438,
                        6.8397,
                        4.0391,
                        6.854,
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                    "spans": [
                        {
                            "offset": 84209,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "40.0 -",
                    "polygon": [
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                        4.8241,
                        4.0964,
                        4.59,
                        4.0964
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                    "spans": [
                        {
                            "offset": 84213,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                        4.1011,
                        5.2109,
                        4.1584,
                        5.1393,
                        4.1632
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                    "spans": [
                        {
                            "offset": 84220,
                            "length": 1
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                    ]
                },
                {
                    "content": "O",
                    "polygon": [
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                        6.2188,
                        4.1298,
                        6.2188,
                        4.1775,
                        6.1567,
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                    "spans": [
                        {
                            "offset": 84222,
                            "length": 1
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                    ]
                },
                {
                    "content": "30.0-",
                    "polygon": [
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                        4.8241,
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                    "spans": [
                        {
                            "offset": 84224,
                            "length": 5
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                    ]
                },
                {
                    "content": "O-O Shortbelly (75 d)",
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                    "spans": [
                        {
                            "offset": 84230,
                            "length": 21
                        }
                    ]
                },
                {
                    "content": "Yellowtail (107 d)",
                    "polygon": [
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                    "spans": [
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                            "length": 18
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                    ]
                },
                {
                    "content": "4-A Bocaccio (100 d)",
                    "polygon": [
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                    "spans": [
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                            "length": 20
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                    ]
                },
                {
                    "content": "V-V Widow (100 d)",
                    "polygon": [
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                    "spans": [
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                            "length": 17
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                    ]
                },
                {
                    "content": "20.0",
                    "polygon": [
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                    "spans": [
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                            "offset": 84310,
                            "length": 4
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                    ]
                },
                {
                    "content": "82",
                    "polygon": [
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                    "spans": [
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                            "length": 2
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                    ]
                },
                {
                    "content": "83",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "84",
                    "polygon": [
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                    "spans": [
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                            "length": 2
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                    ]
                },
                {
                    "content": "85",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "86",
                    "polygon": [
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                    ]
                },
                {
                    "content": "87",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "88",
                    "polygon": [
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                },
                {
                    "content": "89",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "Year",
                    "polygon": [
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                    "spans": [
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                            "offset": 84339,
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                    ]
                },
                {
                    "content": "Figure 1. Standardized length at age data. Num-",
                    "polygon": [
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                        7.1501,
                        5.1801,
                        7.1501,
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                    "spans": [
                        {
                            "offset": 84344,
                            "length": 47
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                    ]
                },
                {
                    "content": "bers in parentheses indicate age used to deter-",
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                    "spans": [
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                    ]
                },
                {
                    "content": "mine lengths.",
                    "polygon": [
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                    "spans": [
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                            "offset": 84440,
                            "length": 13
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                    ]
                },
                {
                    "content": "Birthdate distributions of fish surviving from",
                    "polygon": [
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                    "spans": [
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                        }
                    ]
                },
                {
                    "content": "mid-winter parturition to the time of late spring",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "sampling were estimated by: 1) regressing age",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "on length for each species-year combination, 2)",
                    "polygon": [
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                    "spans": [
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                            "offset": 84597,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "estimating individual ages from lengths of all the",
                    "polygon": [
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                    "spans": [
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                            "offset": 84645,
                            "length": 50
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                    ]
                },
                {
                    "content": "fish sampled (not just those aged), 3) calculating",
                    "polygon": [
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                    "spans": [
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                            "length": 50
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                    ]
                },
                {
                    "content": "the birthdate of each fish by subtracting the",
                    "polygon": [
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                        6.7795,
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                    "spans": [
                        {
                            "offset": 84747,
                            "length": 45
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                    ]
                },
                {
                    "content": "estimated age from the Julian date of capture,",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 84793,
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                    ]
                },
                {
                    "content": "and 4) aggregating birthdates into a composite",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 84840,
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                    ]
                },
                {
                    "content": "frequency distribution. Here only mean",
                    "polygon": [
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                        7.2808,
                        7.2982,
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                            "length": 38
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                    ]
                },
                {
                    "content": "birthdates bracketed by the maximum and min-",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "imum birthdates are presented (Figure 2). Al-",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "though not shown, birthdate distributions were",
                    "polygon": [
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                    "spans": [
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                            "length": 46
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                    ]
                },
                {
                    "content": "generally unimodal when samples were suffi-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 85064,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "ciently large, except in 1987 when each species",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "exhibited extended parturition. Like the results",
                    "polygon": [
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                            "offset": 85156,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "concerning length-at-age, the timing of parturi-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 85205,
                            "length": 48
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                    ]
                },
                {
                    "content": "tion of survivors covaried among species and",
                    "polygon": [
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                    "spans": [
                        {
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                    ]
                },
                {
                    "content": "years.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 85299,
                            "length": 6
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                    ]
                },
                {
                    "content": "This research is ongoing as additional species",
                    "polygon": [
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                    "spans": [
                        {
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                        }
                    ]
                },
                {
                    "content": "are processed and cruises conducted. We are",
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                    "spans": [
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                            "length": 43
                        }
                    ]
                },
                {
                    "content": "currently studying the relationship between",
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                        7.3125,
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                        6.8531
                    ],
                    "spans": [
                        {
                            "offset": 85780,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "200",
                    "polygon": [
                        1.2651,
                        7.0209,
                        1.4616,
                        7.0256,
                        1.4568,
                        7.1023,
                        1.2651,
                        7.1119
                    ],
                    "spans": [
                        {
                            "offset": 85784,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Widow Rockfish",
                    "polygon": [
                        1.6341,
                        7.1742,
                        2.3145,
                        7.1742,
                        2.3145,
                        7.2605,
                        1.6341,
                        7.2605
                    ],
                    "spans": [
                        {
                            "offset": 85788,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Mean Julian Birthdate",
                    "polygon": [
                        1.0734,
                        8.3148,
                        1.0782,
                        7.3324,
                        1.1836,
                        7.3324,
                        1.1836,
                        8.3148
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                    "spans": [
                        {
                            "offset": 85803,
                            "length": 21
                        }
                    ]
                },
                {
                    "content": "150-",
                    "polygon": [
                        1.2938,
                        7.3276,
                        1.4855,
                        7.3324,
                        1.4855,
                        7.409,
                        1.2891,
                        7.409
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                    "spans": [
                        {
                            "offset": 85825,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "100",
                    "polygon": [
                        1.2891,
                        7.6295,
                        1.4855,
                        7.6343,
                        1.4855,
                        7.7157,
                        1.2891,
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                    "spans": [
                        {
                            "offset": 85830,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "50-",
                    "polygon": [
                        1.3322,
                        7.9362,
                        1.4855,
                        7.9314,
                        1.4855,
                        8.0129,
                        1.3274,
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                    "spans": [
                        {
                            "offset": 85834,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "0-",
                    "polygon": [
                        1.3849,
                        8.2429,
                        1.4951,
                        8.2333,
                        1.4951,
                        8.3052,
                        1.3849,
                        8.3196
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                    "spans": [
                        {
                            "offset": 85838,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "-504",
                    "polygon": [
                        1.2699,
                        8.54,
                        1.5095,
                        8.5352,
                        1.5095,
                        8.6071,
                        1.2699,
                        8.6167
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                    "spans": [
                        {
                            "offset": 85841,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1982",
                    "polygon": [
                        1.3801,
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                        1.6245,
                        8.6311,
                        1.6245,
                        8.7174,
                        1.3801,
                        8.7078
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                    "spans": [
                        {
                            "offset": 85846,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1983",
                    "polygon": [
                        1.7203,
                        8.6215,
                        1.9839,
                        8.6263,
                        1.9839,
                        8.7126,
                        1.7203,
                        8.7126
                    ],
                    "spans": [
                        {
                            "offset": 85851,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1984",
                    "polygon": [
                        2.1133,
                        8.6263,
                        2.3481,
                        8.6263,
                        2.3433,
                        8.7126,
                        2.1133,
                        8.7126
                    ],
                    "spans": [
                        {
                            "offset": 85856,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1985",
                    "polygon": [
                        2.4727,
                        8.6263,
                        2.6979,
                        8.6311,
                        2.6979,
                        8.7126,
                        2.4727,
                        8.7078
                    ],
                    "spans": [
                        {
                            "offset": 85861,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1986",
                    "polygon": [
                        2.8417,
                        8.6359,
                        3.0334,
                        8.6407,
                        3.0286,
                        8.7126,
                        2.8369,
                        8.7126
                    ],
                    "spans": [
                        {
                            "offset": 85866,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1987",
                    "polygon": [
                        3.1771,
                        8.6407,
                        3.3928,
                        8.6407,
                        3.388,
                        8.7174,
                        3.1819,
                        8.7174
                    ],
                    "spans": [
                        {
                            "offset": 85871,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1988",
                    "polygon": [
                        3.5269,
                        8.6407,
                        3.7426,
                        8.6407,
                        3.7426,
                        8.7174,
                        3.5269,
                        8.7174
                    ],
                    "spans": [
                        {
                            "offset": 85876,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "1989",
                    "polygon": [
                        3.8911,
                        8.6455,
                        4.0972,
                        8.6455,
                        4.0972,
                        8.7174,
                        3.8863,
                        8.7221
                    ],
                    "spans": [
                        {
                            "offset": 85881,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "Year",
                    "polygon": [
                        2.6596,
                        8.818,
                        2.8608,
                        8.8276,
                        2.856,
                        8.8947,
                        2.6548,
                        8.8947
                    ],
                    "spans": [
                        {
                            "offset": 85886,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "Figure 2. Mean birthdate distributions bracketed by",
                    "polygon": [
                        1.2124,
                        9.35,
                        3.9103,
                        9.3452,
                        3.9103,
                        9.4793,
                        1.2124,
                        9.4793
                    ],
                    "spans": [
                        {
                            "offset": 85891,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "ranges.",
                    "polygon": [
                        1.2172,
                        9.5225,
                        1.6005,
                        9.5225,
                        1.6005,
                        9.6231,
                        1.2172,
                        9.6231
                    ],
                    "spans": [
                        {
                            "offset": 85943,
                            "length": 7
                        }
                    ]
                },
                {
                    "content": "(D. Woodbury 556-0565)",
                    "polygon": [
                        1.1118,
                        9.7573,
                        2.6308,
                        9.7573,
                        2.6308,
                        9.9011,
                        1.1118,
                        9.9059
                    ],
                    "spans": [
                        {
                            "offset": 85951,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "GROUNDFISH COMMUNITIES",
                    "polygon": [
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                        6.7855,
                        1.0112,
                        6.7855,
                        1.1693,
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                    ],
                    "spans": [
                        {
                            "offset": 85974,
                            "length": 22
                        }
                    ]
                },
                {
                    "content": "INVESTIGATIONS",
                    "polygon": [
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                        1.2077,
                        5.8031,
                        1.2077,
                        5.8031,
                        1.361,
                        4.3799,
                        1.361
                    ],
                    "spans": [
                        {
                            "offset": 85997,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "Juvenile Rockfish Found to Respond",
                    "polygon": [
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                        6.9149,
                        1.5288,
                        6.9149,
                        1.6773,
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                    "spans": [
                        {
                            "offset": 86012,
                            "length": 34
                        }
                    ]
                },
                {
                    "content": "Alike to Factors Affecting Growth",
                    "polygon": [
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                        6.7088,
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                    "spans": [
                        {
                            "offset": 86047,
                            "length": 33
                        }
                    ]
                },
                {
                    "content": "Survival and mortality rates have been calcu-",
                    "polygon": [
                        4.538,
                        2.2476,
                        7.2312,
                        2.2524,
                        7.2312,
                        2.401,
                        4.538,
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                    "spans": [
                        {
                            "offset": 86081,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "lated for first-year juvenile blue rockfish, Sebas-",
                    "polygon": [
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                        7.2264,
                        2.4154,
                        7.2264,
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                    "spans": [
                        {
                            "offset": 86127,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "tes mystinus, by Fishery Biologists Peter Adams",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86179,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "and Dan Howard of the Groundfish Com-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86227,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "munities Investigation. The work is based on",
                    "polygon": [
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                        2.9138,
                        7.2408,
                        3.0623,
                        4.3751,
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                    "spans": [
                        {
                            "offset": 86265,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "data from nearshore underwater census counts",
                    "polygon": [
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                        3.0863,
                        7.2408,
                        3.2301,
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                    ],
                    "spans": [
                        {
                            "offset": 86310,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "on the Mendocino Coast, which are part of the",
                    "polygon": [
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                        3.2492,
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                    ],
                    "spans": [
                        {
                            "offset": 86355,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "Tiburon Laboratory's rockfish recruitment",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86401,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "studies.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86443,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "The rates are based on counts made at three",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86452,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "sites from August (when the numbers of recruits",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86496,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "in the habitat stabilized) to the following April,",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86544,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "each year from 1986 to 1989. When the num-",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86595,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "bers are plotted, regressions of the logarithm of",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 86638,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "the numbers of young-of-the-year (YOY) blue",
                    "polygon": [
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                        4.7397,
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                    "spans": [
                        {
                            "offset": 86688,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "rockfish counted gives estimated daily rates of",
                    "polygon": [
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                        7.2503,
                        5.056,
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                    ],
                    "spans": [
                        {
                            "offset": 86732,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "instantaneous mortality similar to those derived",
                    "polygon": [
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                        5.0703,
                        7.236,
                        5.2189,
                        4.3799,
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                    ],
                    "spans": [
                        {
                            "offset": 86780,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "from catch-curve analyses. From these can be",
                    "polygon": [
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                        5.2381,
                        7.2408,
                        5.3866,
                        4.3799,
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                    ],
                    "spans": [
                        {
                            "offset": 86829,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "calculated monthly (30 days) instantaneous",
                    "polygon": [
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                        5.4058,
                        7.2455,
                        5.5592,
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                    ],
                    "spans": [
                        {
                            "offset": 86874,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "mortality rates, as well as daily and monthly",
                    "polygon": [
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                        5.5735,
                        7.2408,
                        5.7269,
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                    ],
                    "spans": [
                        {
                            "offset": 86917,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "survival rates ( Table 1, Figure 3 ).",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 86963,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "Table 1. Daily survival, monthly (30 days)",
                    "polygon": [
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                        6.0959,
                        7.0634,
                        6.0959,
                        7.0634,
                        6.2541,
                        4.5476,
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                    ],
                    "spans": [
                        {
                            "offset": 87001,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "survival and monthly instantaneous",
                    "polygon": [
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                        7.0778,
                        6.2637,
                        7.0778,
                        6.417,
                        4.5524,
                        6.4122
                    ],
                    "spans": [
                        {
                            "offset": 87044,
                            "length": 34
                        }
                    ]
                },
                {
                    "content": "mortality rates for juvenile blue rockfish",
                    "polygon": [
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                        7.073,
                        6.4314,
                        7.073,
                        6.5847,
                        4.5524,
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                    ],
                    "spans": [
                        {
                            "offset": 87079,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "(Sebastes mystinus) for the period be-",
                    "polygon": [
                        4.562,
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                        7.073,
                        6.5943,
                        7.073,
                        6.7525,
                        4.562,
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                    "spans": [
                        {
                            "offset": 87122,
                            "length": 38
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                    ]
                },
                {
                    "content": "tween the months of August to April for",
                    "polygon": [
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                        7.0826,
                        6.7669,
                        7.0826,
                        6.9202,
                        4.5524,
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                    ],
                    "spans": [
                        {
                            "offset": 87161,
                            "length": 39
                        }
                    ]
                },
                {
                    "content": "three locations by year.",
                    "polygon": [
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                        6.9442,
                        6.0284,
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                    ],
                    "spans": [
                        {
                            "offset": 87201,
                            "length": 24
                        }
                    ]
                },
                {
                    "content": "Location",
                    "polygon": [
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                        4.792,
                        7.3947,
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                    "spans": [
                        {
                            "offset": 87226,
                            "length": 8
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                    ]
                },
                {
                    "content": "Year",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 87235,
                            "length": 4
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                    ]
                },
                {
                    "content": "Daily",
                    "polygon": [
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                        5.9086,
                        7.3036,
                        5.9086,
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                        5.6258,
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                    "spans": [
                        {
                            "offset": 87240,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "survival",
                    "polygon": [
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                        6.0092,
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                    "spans": [
                        {
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                            "length": 8
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                    ]
                },
                {
                    "content": "Monthly",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 87255,
                            "length": 7
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                    ]
                },
                {
                    "content": "survival",
                    "polygon": [
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                        6.5938,
                        7.3899,
                        6.5938,
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                        6.1578,
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                    "spans": [
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                            "length": 8
                        }
                    ]
                },
                {
                    "content": "Monthly",
                    "polygon": [
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                    "spans": [
                        {
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                            "length": 7
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                    ]
                },
                {
                    "content": "mortality",
                    "polygon": [
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                    "spans": [
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                            "offset": 87280,
                            "length": 9
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                    ]
                },
                {
                    "content": "Seal Cove",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 87290,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "85/86",
                    "polygon": [
                        5.1562,
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                    "content": "300",
                    "polygon": [
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                        4.3207,
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                    "spans": [
                        {
                            "offset": 88021,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "800",
                    "polygon": [
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                    "spans": [
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                            "offset": 88025,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "250",
                    "polygon": [
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                    "spans": [
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                            "offset": 88029,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "600",
                    "polygon": [
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                        1.5522,
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                    "spans": [
                        {
                            "offset": 88033,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "200",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 88037,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "400",
                    "polygon": [
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                        4.9701,
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                    ],
                    "spans": [
                        {
                            "offset": 88041,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "150",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 88045,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "100",
                    "polygon": [
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                        3.3337,
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                        3.2095,
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                    ],
                    "spans": [
                        {
                            "offset": 88049,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "88/89",
                    "polygon": [
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                        5.099,
                        4.3176,
                        5.1037,
                        4.3128,
                        5.1801,
                        4.1026,
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                    "spans": [
                        {
                            "offset": 88053,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "200",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 88059,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "87/88",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 88063,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "50",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 88069,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": ".88/89",
                    "polygon": [
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                        2.2734,
                        5.3138,
                        2.2686,
                        5.395,
                        2.0203,
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                    "spans": [
                        {
                            "offset": 88072,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
                        1.5188,
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                        1.5665,
                        5.4475,
                        1.5713,
                        5.5048,
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                    "spans": [
                        {
                            "offset": 88079,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
                        3.2764,
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                        5.457,
                        3.3337,
                        5.5239,
                        3.2764,
                        5.5239
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                    "spans": [
                        {
                            "offset": 88081,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "Jun",
                    "polygon": [
                        1.6,
                        5.543,
                        1.7624,
                        5.543,
                        1.7576,
                        5.6194,
                        1.6,
                        5.6194
                    ],
                    "spans": [
                        {
                            "offset": 88083,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Aug",
                    "polygon": [
                        1.8149,
                        5.543,
                        2.0298,
                        5.5477,
                        2.0298,
                        5.6194,
                        1.8149,
                        5.6241
                    ],
                    "spans": [
                        {
                            "offset": 88087,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Oct",
                    "polygon": [
                        2.0489,
                        5.543,
                        2.2304,
                        5.5477,
                        2.2304,
                        5.6194,
                        2.0442,
                        5.6194
                    ],
                    "spans": [
                        {
                            "offset": 88091,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Dec Feb",
                    "polygon": [
                        2.3259,
                        5.543,
                        2.7032,
                        5.543,
                        2.7032,
                        5.6241,
                        2.3259,
                        5.6241
                    ],
                    "spans": [
                        {
                            "offset": 88095,
                            "length": 7
                        }
                    ]
                },
                {
                    "content": "Apr",
                    "polygon": [
                        2.7988,
                        5.5525,
                        2.9086,
                        5.5525,
                        2.9086,
                        5.6241,
                        2.794,
                        5.6241
                    ],
                    "spans": [
                        {
                            "offset": 88103,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Jun Aug Oct Dec",
                    "polygon": [
                        3.3671,
                        5.5477,
                        4.2698,
                        5.5477,
                        4.2698,
                        5.6337,
                        3.3671,
                        5.6337
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                    "spans": [
                        {
                            "offset": 88107,
                            "length": 15
                        }
                    ]
                },
                {
                    "content": "Feb",
                    "polygon": [
                        4.3414,
                        5.5525,
                        4.4847,
                        5.5573,
                        4.4752,
                        5.6289,
                        4.3319,
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                    ],
                    "spans": [
                        {
                            "offset": 88123,
                            "length": 3
                        }
                    ]
                },
                {
                    "content": "Figure 3. Mortality estimates for juvenile blue rockfish (Sebastes",
                    "polygon": [
                        1.2848,
                        5.7912,
                        4.6137,
                        5.8008,
                        4.6137,
                        5.9345,
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                    "spans": [
                        {
                            "offset": 88127,
                            "length": 66
                        }
                    ]
                },
                {
                    "content": "mystinus) from four locations by year.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 88194,
                            "length": 38
                        }
                    ]
                },
                {
                    "content": "Rates of annual (12-month) instantaneous mor-",
                    "polygon": [
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                        4.1456,
                        6.2639,
                        4.1456,
                        6.4119,
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                    "spans": [
                        {
                            "offset": 88233,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "tality projected from these data range from 1.51 to",
                    "polygon": [
                        1.1367,
                        6.4262,
                        4.1408,
                        6.431,
                        4.1408,
                        6.579,
                        1.1367,
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                    "spans": [
                        {
                            "offset": 88279,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "0.67, which can be compared to the generally",
                    "polygon": [
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                        4.1361,
                        6.6029,
                        4.1361,
                        6.7556,
                        1.1319,
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                    "spans": [
                        {
                            "offset": 88331,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "accepted adult natural mortality rate of around",
                    "polygon": [
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                        4.1361,
                        6.7604,
                        4.1408,
                        6.9132,
                        1.1319,
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                    "spans": [
                        {
                            "offset": 88376,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "0.25.",
                    "polygon": [
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                        6.9275,
                        1.4519,
                        7.0517,
                        1.1415,
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                    "spans": [
                        {
                            "offset": 88424,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "Possible sources of error include net migration",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 88430,
                            "length": 47
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                    ]
                },
                {
                    "content": "into the area, which would reduce the mortality",
                    "polygon": [
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                        4.1361,
                        7.424,
                        4.1361,
                        7.5864,
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                    "spans": [
                        {
                            "offset": 88478,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "estimates, and net migration out of the area, which",
                    "polygon": [
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                        7.6007,
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                    "spans": [
                        {
                            "offset": 88526,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "would increase the mortality estimates. Finer-scale",
                    "polygon": [
                        1.1415,
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                        7.7678,
                        4.1552,
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                    "spans": [
                        {
                            "offset": 88578,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "sampling planned for the coming year should",
                    "polygon": [
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                        7.9349,
                        4.1408,
                        8.0829,
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                    "spans": [
                        {
                            "offset": 88630,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "refine these estimates. (P. Adams, FTS 556-0568)",
                    "polygon": [
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                        8.0972,
                        4.1026,
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                    ],
                    "spans": [
                        {
                            "offset": 88674,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "Groundfish Physiological Ecology",
                    "polygon": [
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                        3.4626,
                        8.5794,
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                    "spans": [
                        {
                            "offset": 88723,
                            "length": 32
                        }
                    ]
                },
                {
                    "content": "Investigation to Assess Condition of",
                    "polygon": [
                        1.1367,
                        8.5747,
                        3.6441,
                        8.5747,
                        3.6441,
                        8.7083,
                        1.1367,
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                    ],
                    "spans": [
                        {
                            "offset": 88756,
                            "length": 36
                        }
                    ]
                },
                {
                    "content": "Juvenile Yellowtail Rockfish",
                    "polygon": [
                        1.1367,
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                        3.0806,
                        8.7083,
                        3.0806,
                        8.842,
                        1.1367,
                        8.842
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                    "spans": [
                        {
                            "offset": 88793,
                            "length": 28
                        }
                    ]
                },
                {
                    "content": "Since March 1985, the Physiological Ecology",
                    "polygon": [
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                        8.9614,
                        4.1361,
                        8.9709,
                        4.1361,
                        9.1237,
                        1.2991,
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                    ],
                    "spans": [
                        {
                            "offset": 88822,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "Investigation has been studying the reproductive",
                    "polygon": [
                        1.1319,
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                        4.1552,
                        9.138,
                        4.1552,
                        9.286,
                        1.1319,
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                    ],
                    "spans": [
                        {
                            "offset": 88866,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "biology of yellowtail rockfish, Sebastes flavidus,",
                    "polygon": [
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                        4.1504,
                        9.3003,
                        4.1504,
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                    "spans": [
                        {
                            "offset": 88915,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "from Cordell Bank off Bodega Bay, California. An",
                    "polygon": [
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                        4.1504,
                        9.4674,
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                    ]
                },
                {
                    "content": "objective of the study is to identify variables within",
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                        9.6345,
                        4.1552,
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                    "spans": [
                        {
                            "offset": 89015,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "the female that relate to reproductive success. Ap-",
                    "polygon": [
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                        4.1456,
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                    "spans": [
                        {
                            "offset": 89070,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "proximately 300 adult females have",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "been analyzed for body condition,",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 89157,
                            "length": 33
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                    ]
                },
                {
                    "content": "parasite burden, nutritional state,",
                    "polygon": [
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                    "spans": [
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                            "length": 35
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                    ]
                },
                {
                    "content": "ovarian maturation, oocyte develop-",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "ment, fecundity, etc. Statistical",
                    "polygon": [
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                        7.2978,
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                        5.0244,
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                    "spans": [
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                            "offset": 89263,
                            "length": 33
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                    ]
                },
                {
                    "content": "relationships between and among",
                    "polygon": [
                        5.0292,
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                        1.8286,
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                        1.9766,
                        5.0292,
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                    "spans": [
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                            "offset": 89297,
                            "length": 31
                        }
                    ]
                },
                {
                    "content": "maternal and ovarian variables have",
                    "polygon": [
                        5.0196,
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                        1.9861,
                        7.2978,
                        2.1293,
                        5.0196,
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                    "spans": [
                        {
                            "offset": 89329,
                            "length": 35
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                    ]
                },
                {
                    "content": "been identified; however, the link be-",
                    "polygon": [
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                        7.2883,
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                    "spans": [
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                    ]
                },
                {
                    "content": "tween these variables and the viability",
                    "polygon": [
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                    ]
                },
                {
                    "content": "Ap",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 89444,
                            "length": 2
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                    ]
                },
                {
                    "content": "of progeny has not been established.",
                    "polygon": [
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                        2.4826,
                        7.2787,
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                    "spans": [
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                            "offset": 89447,
                            "length": 36
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                    ]
                },
                {
                    "content": "Ideally, evaluation of the physiological",
                    "polygon": [
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                        2.6497,
                        7.293,
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                    "spans": [
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                            "offset": 89484,
                            "length": 40
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                    ]
                },
                {
                    "content": "condition of recently released larvae",
                    "polygon": [
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                    "spans": [
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                            "offset": 89525,
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                    ]
                },
                {
                    "content": "would provide the optimum data to",
                    "polygon": [
                        5.034,
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                        2.9887,
                        7.293,
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                    "spans": [
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                    ]
                },
                {
                    "content": "establish relationships with maternal",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "factors, but locating and identifying",
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                    "spans": [
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                    ]
                },
                {
                    "content": "offspring during this early life stage",
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                    "content": "reproductive success.",
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                    "content": "As part of the Rockfish Recruitment Assess-",
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                    "content": "their physiological condition. This will be the",
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                    "content": "COBOL,",
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                    "content": "condition and between maternal values from the",
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                    "content": "variables which best describe physiological condi-",
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                    "content": "tion and relate to maternal variables will be retained",
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                },
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                    "content": "for future yearly assessments. Initially, we will as-",
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                    "content": "sess morphometrics, gross abnormalities, parasite",
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                },
                {
                    "content": "burdens, mesenteric fat, total lipid concentration",
                    "polygon": [
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                    "content": "and energetic lipid to structural lipid ratios, total",
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                },
                {
                    "content": "protein, RNA/DNA, calorimetry, stomach contents,",
                    "polygon": [
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                {
                    "content": "liver histochemistry, and organ histology. Addition-",
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                    "content": "ally, depth profiles of temperature and salinity, and",
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                },
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                    "content": "plankton composition and abundance will be",
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                },
                {
                    "content": "recorded. (B. MacFarlane, FTS 556-0569)",
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                },
                {
                    "content": "Condition of Bocaccio, Sebastes paucispinus,",
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                    "content": "Assessed",
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                    "content": "Starting in 1985 bocaccio rockfish have been",
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                    "content": "collected concurrently with the yellowtail rockfish",
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                    ]
                },
                {
                    "content": "as described in previous reports. The objective was",
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                            "offset": 92063,
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                },
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                    "content": "to obtain a preliminary sample which might indicate",
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                },
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                    "content": "the degree to which adult condition relates to effec-",
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                },
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                    "content": "tive fecundity. Because our initial emphasis was",
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                },
                {
                    "content": "placed on yellowtail rockfish, a smaller sample was",
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                    "content": "taken. Three years of collection resulted in a total",
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                            "offset": 92322,
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                },
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                    "content": "sample of 140 bocaccio. After initial analyses, data",
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                },
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                    "content": "showed that unlike yellowtail rockfish, bocaccio did",
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                            "offset": 92428,
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                    ]
                },
                {
                    "content": "not significantly decline in body condition with age",
                    "polygon": [
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                    ]
                },
                {
                    "content": "(mean age=10.8 yrs; range=2-36 yrs; most fish",
                    "polygon": [
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                    "spans": [
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                            "offset": 92534,
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                    ]
                },
                {
                    "content": "were 8-11 yrs) and there were no significant cor-",
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                },
                {
                    "content": "relations of parasites and disease with body condi-",
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                    "spans": [
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                    ]
                },
                {
                    "content": "tion factors measured, although as in most fish,",
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                    "spans": [
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                            "offset": 92682,
                            "length": 48
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                    ]
                },
                {
                    "content": "higher nematode burdens occurred in older fish. In",
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                    "spans": [
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                    ]
                },
                {
                    "content": "general, bocaccio appeared healthier than did yel-",
                    "polygon": [
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                            "offset": 92782,
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                    ]
                },
                {
                    "content": "lowtail rockfish over the time sampled (1985-",
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                            "offset": 92833,
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                    ]
                },
                {
                    "content": "1989).",
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                    "spans": [
                        {
                            "offset": 92879,
                            "length": 6
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                    ]
                },
                {
                    "content": "Mean fecundity of females sampled (n=18) was",
                    "polygon": [
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                    "spans": [
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                    ]
                },
                {
                    "content": "1,124,227 eggs per female (range=88,133 to",
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                        7.0886,
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                    "spans": [
                        {
                            "offset": 92931,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "2,690,900 eggs/female). Analyses of fecundity and",
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                    "spans": [
                        {
                            "offset": 92974,
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                        }
                    ]
                },
                {
                    "content": "assessments of viability in additional samples of",
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                    "spans": [
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                            "offset": 93024,
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                    ]
                },
                {
                    "content": "females will be reported later. (J. Whipple, FTS",
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                            "offset": 93074,
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                    ]
                },
                {
                    "content": "556-0569)",
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                    ]
                },
                {
                    "content": "INFORMATION",
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                },
                {
                    "content": "TECHNOLOGY SERVICES",
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                    ]
                },
                {
                    "content": "Update of Information Technology 1995",
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                },
                {
                    "content": "(IT-95) Project",
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                    ]
                },
                {
                    "content": "The IT-95 Project was initiated to procure a",
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                            "offset": 93219,
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                    ]
                },
                {
                    "content": "distributed processing computer system to support",
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                            "offset": 93264,
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                    ]
                },
                {
                    "content": "the complex scientific and data management needs",
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                            "offset": 93314,
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                    ]
                },
                {
                    "content": "of NOAA Fisheries into the 1990's. The procure-",
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                    ]
                },
                {
                    "content": "ment would provide the hardware and software",
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                    ]
                },
                {
                    "content": "for stand-alone and network processing",
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                            "offset": 93456,
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                    ]
                },
                {
                    "content": "capabilities at 7 initial sites and 2 additional sites.",
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                    "content": "The 7 initial sites are Seattle, WA; Auke Bay, AL;",
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                    ]
                },
                {
                    "content": "La Jolla, CA; Honolulu, HI; Miami, FL; Woods",
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                },
                {
                    "content": "Hole, MA; and Silver Spring, MD (Washington,",
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                },
                {
                    "content": "D.C.). The 2 additional sites are tentatively tar-",
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                    "content": "geted for the Pacific Fisheries Environmental",
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                },
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                    "content": "Group, Monterey, CA and the Seattle Montlake",
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                },
                {
                    "content": "Laboratory. Though targeted for these two sites,",
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                    "content": "actual placement of these systems would be at",
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                },
                {
                    "content": "the discretion of the Science Directors at the",
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                    ]
                },
                {
                    "content": "Northwest and Southwest Centers.",
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                    ]
                },
                {
                    "content": "Upon the commitment of 3 million dollars by",
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                },
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                    "content": "NMFS towards the procurement of the IT-95",
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                    ]
                },
                {
                    "content": "system, the NOAA contracting office announced",
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                    ]
                },
                {
                    "content": "in the April 28, 1989 issue of the Commerce",
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                },
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                    "content": "Business Daily that NOAA will release the Re-",
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                },
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                    "content": "quest for Proposals (RFP) to the vendors on or",
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                    "content": "about May 30, 1989. The RFP identifies the",
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                },
                {
                    "content": "mandatory requirements, options, and desired",
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                },
                {
                    "content": "features for hardware, peripherals, and software",
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                    ]
                },
                {
                    "content": "for the IT-95 procurement. To ensure a full,",
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                },
                {
                    "content": "open, and equal competition, the Government",
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                {
                    "content": "incorporated in this RFP the responses to the",
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                    "content": "vendors who commented or questioned the",
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                    "content": "mandatory requirements in the August 1988 Re-",
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                    "content": "quest for Comments, a preview of the RFP.",
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                    "content": "The RFP states that the vendor must propose",
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                    "content": "a system with sufficient memory, processing",
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                    "content": "capability, and I/O capability to satisfy the re-",
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                    ]
                },
                {
                    "content": "quirements of the live test demonstration (LTD).",
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                    "content": "The proposed system must be capable of",
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                },
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                    "content": "processing the mix of concurrent interactive ter-",
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                },
                {
                    "content": "minal time-sharing and batch jobs within a",
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                },
                {
                    "content": "specified time, as directed in the benchmark",
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                },
                {
                    "content": "package. Systems not passing the benchmark",
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                },
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                    "content": "test would be considered nonresponsive.",
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                    ]
                },
                {
                    "content": "The benchmark package is in the final phase",
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                    ]
                },
                {
                    "content": "of development by the Benchmark Team,",
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                    ]
                },
                {
                    "content": "chaired by Bob Riemann (NW). The benchmark",
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                },
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                    "content": "team members from the regional sites are Frank",
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                    ]
                },
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                    "content": "Kikuchi (NW), Roger Hewitt (SW), Charlie",
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                },
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                    "content": "Krouse (SE), Jim Sargeant (NE), and Dick",
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                },
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                    "content": "Schween (HQ/RE1). The benchmark package",
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                },
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                    "content": "consists of master tapes of the representative",
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                },
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                    "content": "programs and data sets from each of the five",
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                },
                {
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                    "content": "Hiruki.",
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                {
                    "content": "derelict",
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                    "content": "26",
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            ],
            "lines": [
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                    "content": "and VAX operating systems. The vendors must",
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                    "content": "proposed system.",
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                    "content": "With the RFP targeted for release on May 30, the",
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                    "content": "dors by June 10. The charge to the vendors is $300",
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                },
                {
                    "content": "controlled by Meredith Beeg, the NOAA Contract-",
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                {
                    "content": "ing Officer. If the benchmark package cannot be",
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                    "content": "be delayed and held for release 10 days prior to a",
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                {
                    "content": "firm completion date of the benchmark package.",
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                {
                    "content": "Based on a May 30 RFP release date, benchmark",
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                        4.1838,
                        3.1558,
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                {
                    "content": "at the vendors' sites could begin the latter part of",
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                            "offset": 96297,
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                },
                {
                    "content": "August. (D. Roll, FTS 893-7057)",
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                        {
                            "offset": 96350,
                            "length": 31
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                },
                {
                    "content": "STATUS OF",
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                        3.2382,
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                        {
                            "offset": 96382,
                            "length": 9
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                    ]
                },
                {
                    "content": "PUBLICATIONS",
                    "polygon": [
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                            "offset": 96392,
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                },
                {
                    "content": "Published",
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                            "offset": 96405,
                            "length": 9
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                    ]
                },
                {
                    "content": "Alcorn, Doris J. and Elizabeth K. Buelna. 1989. The",
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                        1.1654,
                        4.6263,
                        4.1886,
                        4.6263,
                        4.1886,
                        4.7839,
                        1.1654,
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                        {
                            "offset": 96415,
                            "length": 51
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                    ]
                },
                {
                    "content": "Hawaiian monk seal on Laysan Island, 1983. U.S.",
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                            "offset": 96467,
                            "length": 47
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                    ]
                },
                {
                    "content": "Dep. Commer., NOAA Tech. Memo., NOAA-TM-",
                    "polygon": [
                        1.4185,
                        4.9366,
                        4.1743,
                        4.9366,
                        4.1743,
                        5.0655,
                        1.4185,
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                    "spans": [
                        {
                            "offset": 96515,
                            "length": 40
                        }
                    ]
                },
                {
                    "content": "NMFS-SWFC-124, 45 p.",
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                        1.4233,
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                        2.7415,
                        5.0846,
                        2.7415,
                        5.2183,
                        1.4233,
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                        {
                            "offset": 96556,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "Cole, David A. and Douglas R. McLain. 1989. Interan-",
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                        4.179,
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                        1.1797,
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                        {
                            "offset": 96577,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "nual variability of temperature in the upper layer of",
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                        1.4185,
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                        4.1934,
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                    "spans": [
                        {
                            "offset": 96630,
                            "length": 53
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                    ]
                },
                {
                    "content": "the north Pacific eastern boundary region, 1971-",
                    "polygon": [
                        1.4233,
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                        {
                            "offset": 96684,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "1987. U.S. Dep. Commer., NOAA Tech. Memo.,",
                    "polygon": [
                        1.4328,
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                        {
                            "offset": 96733,
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                    ]
                },
                {
                    "content": "NOAA-TM-NMFS-SWFC-125, 14 p.",
                    "polygon": [
                        1.4233,
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                        {
                            "offset": 96776,
                            "length": 28
                        }
                    ]
                },
                {
                    "content": "Graham, Jeffrey B., William R. Lowell, N. Chin Lai and",
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                        {
                            "offset": 96805,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "R. Michael Laurs. 1989. O2 tension, swimming-",
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                        1.4233,
                        6.3928,
                        4.179,
                        6.4023,
                        4.179,
                        6.536,
                        1.4233,
                        6.5169
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                    "spans": [
                        {
                            "offset": 96860,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "velocity, and thermal effects on the metabolic rate of",
                    "polygon": [
                        1.4328,
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                        6.5456,
                        4.1934,
                        6.6745,
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                    "spans": [
                        {
                            "offset": 96906,
                            "length": 54
                        }
                    ]
                },
                {
                    "content": "the Pacific albacore Thunnus alalunga. Exp. Biol.",
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                        1.4233,
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                        4.1743,
                        6.8273,
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                    "spans": [
                        {
                            "offset": 96961,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "48:89-94.",
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                        6.8368,
                        1.9534,
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                        {
                            "offset": 97011,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": "The oxygen consumption rates (VO2) of 9 albacore",
                    "polygon": [
                        1.428,
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                        7.1233,
                        4.1838,
                        7.2617,
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                            "offset": 97021,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "tuna, Thunnus alalunga (8.5-12 kg) were measured",
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                            "offset": 97070,
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                    ]
                },
                {
                    "content": "at sea in a swimming respirometer to determine the",
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                            "offset": 97119,
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                {
                    "content": "effects of relative swimming velocity, ambient O2",
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                    ]
                },
                {
                    "content": "tension, and water temperature. Significant positive",
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                            "offset": 97220,
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                    ]
                },
                {
                    "content": "relationships were obtained between tail-beat fre-",
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                        {
                            "offset": 97273,
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                    ]
                },
                {
                    "content": "quency and relative speed and between relative",
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                },
                {
                    "content": "speed and VO2. The albacore metabolic rate was",
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                },
                {
                    "content": "not appreciably affected by exposure to water",
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                    ]
                },
                {
                    "content": "temperatures ranging from 13.5° to 16.9℃. Brief",
                    "polygon": [
                        1.428,
                        8.4457,
                        4.1934,
                        8.441,
                        4.1934,
                        8.5747,
                        1.428,
                        8.5842
                    ],
                    "spans": [
                        {
                            "offset": 97464,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "exposure to hyperoxia (200-400 mm Hg), which was",
                    "polygon": [
                        1.428,
                        8.589,
                        4.1838,
                        8.589,
                        4.1838,
                        8.7274,
                        1.428,
                        8.7322
                    ],
                    "spans": [
                        {
                            "offset": 97512,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "done to reduce the initial stress upon fish in the",
                    "polygon": [
                        1.428,
                        8.7322,
                        4.1934,
                        8.737,
                        4.1934,
                        8.8754,
                        1.428,
                        8.8659
                    ],
                    "spans": [
                        {
                            "offset": 97561,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "respirometer, did not affect VO2. Hypoxia (50-99",
                    "polygon": [
                        1.4233,
                        8.8802,
                        4.1838,
                        8.8802,
                        4.1838,
                        9.0234,
                        1.4233,
                        9.0234
                    ],
                    "spans": [
                        {
                            "offset": 97612,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "mm Hg), however, did tend to reduce VO2 and affect",
                    "polygon": [
                        1.428,
                        9.0282,
                        4.1982,
                        9.0282,
                        4.1982,
                        9.1667,
                        1.428,
                        9.1667
                    ],
                    "spans": [
                        {
                            "offset": 97661,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "swimming velocity.",
                    "polygon": [
                        1.4233,
                        9.1858,
                        2.4501,
                        9.1858,
                        2.4501,
                        9.3147,
                        1.4233,
                        9.3099
                    ],
                    "spans": [
                        {
                            "offset": 97712,
                            "length": 18
                        }
                    ]
                },
                {
                    "content": "Humphreys, Robert L., Jr., Gary A. Winans, and Darryl",
                    "polygon": [
                        1.1749,
                        9.4674,
                        4.1982,
                        9.4674,
                        4.1982,
                        9.6107,
                        1.1749,
                        9.6059
                    ],
                    "spans": [
                        {
                            "offset": 97731,
                            "length": 53
                        }
                    ]
                },
                {
                    "content": "T. Tagami. 1989. Synonymy and life history of the",
                    "polygon": [
                        1.4328,
                        9.6155,
                        4.1934,
                        9.6202,
                        4.1934,
                        9.7587,
                        1.4328,
                        9.7491
                    ],
                    "spans": [
                        {
                            "offset": 97785,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "North Pacific pelagic armorhead, Pseudopentaceros",
                    "polygon": [
                        1.4328,
                        9.7635,
                        4.1886,
                        9.773,
                        4.1886,
                        9.9067,
                        1.4328,
                        9.8971
                    ],
                    "spans": [
                        {
                            "offset": 97835,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "wheeleri Hardy (Pisces: Pentacerotidae). Copeia",
                    "polygon": [
                        4.7378,
                        0.9071,
                        7.336,
                        0.9119,
                        7.336,
                        1.0503,
                        4.7378,
                        1.036
                    ],
                    "spans": [
                        {
                            "offset": 97885,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "1989:142-153.",
                    "polygon": [
                        4.7426,
                        1.0503,
                        5.5211,
                        1.0503,
                        5.5211,
                        1.1649,
                        4.7426,
                        1.1697
                    ],
                    "spans": [
                        {
                            "offset": 97933,
                            "length": 13
                        }
                    ]
                },
                {
                    "content": "Specimens of the nominal species Pseudopen-",
                    "polygon": [
                        4.7378,
                        1.3368,
                        7.3456,
                        1.3416,
                        7.3408,
                        1.4848,
                        4.7378,
                        1.48
                    ],
                    "spans": [
                        {
                            "offset": 97947,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "taceros wheeleri Hardy and P. pectoralis Hardy",
                    "polygon": [
                        4.7283,
                        1.4848,
                        7.3408,
                        1.4896,
                        7.3408,
                        1.6328,
                        4.7283,
                        1.6185
                    ],
                    "spans": [
                        {
                            "offset": 97991,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "were examined morphologically and",
                    "polygon": [
                        4.7378,
                        1.6328,
                        7.3456,
                        1.6376,
                        7.3456,
                        1.776,
                        4.7378,
                        1.7665
                    ],
                    "spans": [
                        {
                            "offset": 98038,
                            "length": 33
                        }
                    ]
                },
                {
                    "content": "electrophoretically to test the validity of the two",
                    "polygon": [
                        4.7331,
                        1.776,
                        7.336,
                        1.7808,
                        7.336,
                        1.9145,
                        4.7331,
                        1.9097
                    ],
                    "spans": [
                        {
                            "offset": 98072,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "species. Samples were collected primarily from",
                    "polygon": [
                        4.7378,
                        1.924,
                        7.336,
                        1.924,
                        7.336,
                        2.0625,
                        4.7378,
                        2.0625
                    ],
                    "spans": [
                        {
                            "offset": 98124,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "the Hancock Seamounts of the southern",
                    "polygon": [
                        4.7331,
                        2.0673,
                        7.3456,
                        2.072,
                        7.3456,
                        2.2057,
                        4.7331,
                        2.201
                    ],
                    "spans": [
                        {
                            "offset": 98171,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "Emperor-northern Hawaiian Ridge as well as",
                    "polygon": [
                        4.7426,
                        2.2153,
                        7.3408,
                        2.2201,
                        7.3408,
                        2.3537,
                        4.7426,
                        2.349
                    ],
                    "spans": [
                        {
                            "offset": 98209,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "from the North Pacific open ocean and",
                    "polygon": [
                        4.7378,
                        2.349,
                        7.3456,
                        2.3681,
                        7.3408,
                        2.5017,
                        4.7378,
                        2.4826
                    ],
                    "spans": [
                        {
                            "offset": 98252,
                            "length": 37
                        }
                    ]
                },
                {
                    "content": "northwestern Hawaiian Islands. Morphometric",
                    "polygon": [
                        4.7378,
                        2.5065,
                        7.3503,
                        2.5065,
                        7.3503,
                        2.645,
                        4.7378,
                        2.6354
                    ],
                    "spans": [
                        {
                            "offset": 98290,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "results indicate continuity between P. wheeleri",
                    "polygon": [
                        4.7426,
                        2.6497,
                        7.3456,
                        2.6497,
                        7.3456,
                        2.7882,
                        4.7426,
                        2.7882
                    ],
                    "spans": [
                        {
                            "offset": 98334,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "and P. pectoralis. No evidence of species separa-",
                    "polygon": [
                        4.7378,
                        2.7977,
                        7.3408,
                        2.8073,
                        7.3408,
                        2.9457,
                        4.7378,
                        2.9266
                    ],
                    "spans": [
                        {
                            "offset": 98382,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "tion was revealed in analyses of merisitc and",
                    "polygon": [
                        4.7426,
                        2.941,
                        7.3408,
                        2.9457,
                        7.3408,
                        3.0794,
                        4.7426,
                        3.0747
                    ],
                    "spans": [
                        {
                            "offset": 98432,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "electrophoretic data. We conclude that the North",
                    "polygon": [
                        4.7331,
                        3.0842,
                        7.336,
                        3.0842,
                        7.336,
                        3.2227,
                        4.7331,
                        3.2179
                    ],
                    "spans": [
                        {
                            "offset": 98478,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "Pacific pelagic armorhead consists of a single,",
                    "polygon": [
                        4.7426,
                        3.2322,
                        7.3456,
                        3.2322,
                        7.3456,
                        3.3707,
                        4.7426,
                        3.3659
                    ],
                    "spans": [
                        {
                            "offset": 98527,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "metamorphic species, which we, as first revisers,",
                    "polygon": [
                        4.7426,
                        3.3802,
                        7.3408,
                        3.3802,
                        7.3408,
                        3.5139,
                        4.7426,
                        3.5139
                    ],
                    "spans": [
                        {
                            "offset": 98575,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "elect to call P. wheeleri. A hypothesis is proposed",
                    "polygon": [
                        4.7378,
                        3.5187,
                        7.3551,
                        3.5234,
                        7.3551,
                        3.6619,
                        4.7378,
                        3.6476
                    ],
                    "spans": [
                        {
                            "offset": 98625,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "that attributes morphological variation to different",
                    "polygon": [
                        4.7426,
                        3.6667,
                        7.3503,
                        3.6714,
                        7.3503,
                        3.8051,
                        4.7426,
                        3.7956
                    ],
                    "spans": [
                        {
                            "offset": 98677,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "life-history stages.",
                    "polygon": [
                        4.7426,
                        3.8099,
                        5.6883,
                        3.8147,
                        5.6835,
                        3.9436,
                        4.7426,
                        3.9388
                    ],
                    "spans": [
                        {
                            "offset": 98730,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "Owen, R. W. 1989. Microscale and finescale varia-",
                    "polygon": [
                        4.4943,
                        4.0964,
                        7.3456,
                        4.1059,
                        7.3456,
                        4.2348,
                        4.4895,
                        4.2205
                    ],
                    "spans": [
                        {
                            "offset": 98751,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "tions of small plankton in coastal and pelagic",
                    "polygon": [
                        4.7426,
                        4.2539,
                        7.3456,
                        4.2587,
                        7.3456,
                        4.3924,
                        4.7426,
                        4.378
                    ],
                    "spans": [
                        {
                            "offset": 98801,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "environments. J. Mar. Res. 47:197-240.",
                    "polygon": [
                        4.7474,
                        4.4019,
                        6.8918,
                        4.3971,
                        6.8918,
                        4.5165,
                        4.7474,
                        4.526
                    ],
                    "spans": [
                        {
                            "offset": 98848,
                            "length": 38
                        }
                    ]
                },
                {
                    "content": "Somerton, David A., Bert S. Kikkawa, and Christopher",
                    "polygon": [
                        4.4895,
                        4.6836,
                        7.3456,
                        4.6931,
                        7.3456,
                        4.8268,
                        4.4895,
                        4.8125
                    ],
                    "spans": [
                        {
                            "offset": 98887,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "D. Wilson. 1988. Hook timers to measure the",
                    "polygon": [
                        4.7378,
                        4.8316,
                        7.3551,
                        4.8411,
                        7.3503,
                        4.9653,
                        4.7378,
                        4.951
                    ],
                    "spans": [
                        {
                            "offset": 98940,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "capture time of individual fish. Mar. Fish. Rev.",
                    "polygon": [
                        4.7426,
                        4.9844,
                        7.3408,
                        4.9844,
                        7.3408,
                        5.1037,
                        4.7426,
                        5.1085
                    ],
                    "spans": [
                        {
                            "offset": 98984,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "50(2):1-5.",
                    "polygon": [
                        4.7426,
                        5.1228,
                        5.2775,
                        5.1228,
                        5.2775,
                        5.247,
                        4.7426,
                        5.247
                    ],
                    "spans": [
                        {
                            "offset": 99033,
                            "length": 10
                        }
                    ]
                },
                {
                    "content": "To measure capture time of individual fish on a",
                    "polygon": [
                        4.7426,
                        5.4093,
                        7.3503,
                        5.4188,
                        7.3503,
                        5.5477,
                        4.7426,
                        5.543
                    ],
                    "spans": [
                        {
                            "offset": 99044,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "longline, two types of hook timers installed in the",
                    "polygon": [
                        4.7474,
                        5.5668,
                        7.3503,
                        5.5668,
                        7.3503,
                        5.6957,
                        4.7474,
                        5.6957
                    ],
                    "spans": [
                        {
                            "offset": 99092,
                            "length": 51
                        }
                    ]
                },
                {
                    "content": "leaders and activated by a striking fish were",
                    "polygon": [
                        4.7474,
                        5.7101,
                        7.3503,
                        5.7148,
                        7.3503,
                        5.8485,
                        4.7474,
                        5.8342
                    ],
                    "spans": [
                        {
                            "offset": 99144,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "designed and tested: 1) A corrosion timer that",
                    "polygon": [
                        4.7474,
                        5.8485,
                        7.3503,
                        5.8533,
                        7.3503,
                        5.9822,
                        4.7474,
                        5.9774
                    ],
                    "spans": [
                        {
                            "offset": 99190,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "measures time indirectly from the mass loss of the",
                    "polygon": [
                        4.7426,
                        5.9965,
                        7.3551,
                        5.9965,
                        7.3551,
                        6.1302,
                        4.7426,
                        6.135
                    ],
                    "spans": [
                        {
                            "offset": 99237,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "anode in a galvanic corrosional reaction and 2) a",
                    "polygon": [
                        4.7426,
                        6.1445,
                        7.3503,
                        6.1493,
                        7.3503,
                        6.283,
                        4.7426,
                        6.2782
                    ],
                    "spans": [
                        {
                            "offset": 99288,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "digital timer that measures time directly by a digi-",
                    "polygon": [
                        4.7426,
                        6.2878,
                        7.3503,
                        6.2925,
                        7.3503,
                        6.4358,
                        4.7426,
                        6.4262
                    ],
                    "spans": [
                        {
                            "offset": 99338,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "tal watch module. The digital timer proved to be",
                    "polygon": [
                        4.7474,
                        6.431,
                        7.3647,
                        6.4405,
                        7.3647,
                        6.579,
                        4.7426,
                        6.5694
                    ],
                    "spans": [
                        {
                            "offset": 99391,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "superior because it is reusable, quicker to deploy",
                    "polygon": [
                        4.7426,
                        6.5838,
                        7.3551,
                        6.5885,
                        7.3551,
                        6.7318,
                        4.7426,
                        6.727
                    ],
                    "spans": [
                        {
                            "offset": 99440,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "and retrieve, and measures time directly with little",
                    "polygon": [
                        4.7474,
                        6.7318,
                        7.3503,
                        6.7365,
                        7.3503,
                        6.8702,
                        4.7426,
                        6.8607
                    ],
                    "spans": [
                        {
                            "offset": 99491,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "error.",
                    "polygon": [
                        4.7426,
                        6.9036,
                        5.034,
                        6.8989,
                        5.034,
                        6.9896,
                        4.7426,
                        6.9944
                    ],
                    "spans": [
                        {
                            "offset": 99544,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "Approved, Science and Research",
                    "polygon": [
                        4.5038,
                        7.1806,
                        6.782,
                        7.1853,
                        6.782,
                        7.3286,
                        4.5038,
                        7.3286
                    ],
                    "spans": [
                        {
                            "offset": 99551,
                            "length": 30
                        }
                    ]
                },
                {
                    "content": "Director, SWR",
                    "polygon": [
                        4.499,
                        7.3238,
                        5.5116,
                        7.3238,
                        5.5116,
                        7.4622,
                        4.499,
                        7.4622
                    ],
                    "spans": [
                        {
                            "offset": 99582,
                            "length": 13
                        }
                    ]
                },
                {
                    "content": "Bakun, Andrew. Mechanisms for density-dependent",
                    "polygon": [
                        4.5038,
                        7.5864,
                        7.3551,
                        7.5959,
                        7.3551,
                        7.7392,
                        4.5038,
                        7.7201
                    ],
                    "spans": [
                        {
                            "offset": 99596,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "growth: alternatives to impact on the regional-",
                    "polygon": [
                        4.7474,
                        7.7439,
                        7.3551,
                        7.7487,
                        7.3551,
                        7.8824,
                        4.7474,
                        7.8728
                    ],
                    "spans": [
                        {
                            "offset": 99644,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "scale food supply. For publication in The",
                    "polygon": [
                        4.7474,
                        7.8872,
                        7.3599,
                        7.8919,
                        7.3551,
                        8.0256,
                        4.7474,
                        8.0256
                    ],
                    "spans": [
                        {
                            "offset": 99692,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "Peruvian Upwelling System: Dynamics and Inter-",
                    "polygon": [
                        4.7522,
                        8.0352,
                        7.3503,
                        8.0447,
                        7.3503,
                        8.1736,
                        4.7522,
                        8.1688
                    ],
                    "spans": [
                        {
                            "offset": 99734,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "actions. ICLARM Studies and Reviews 18. In-",
                    "polygon": [
                        4.7569,
                        8.1784,
                        7.3551,
                        8.1784,
                        7.3551,
                        8.3121,
                        4.7569,
                        8.3073
                    ],
                    "spans": [
                        {
                            "offset": 99781,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "stituto del Mar del Peru (IMARPE), Callao, Peru.",
                    "polygon": [
                        4.7522,
                        8.3216,
                        7.3026,
                        8.3264,
                        7.3026,
                        8.4648,
                        4.7522,
                        8.4553
                    ],
                    "spans": [
                        {
                            "offset": 99825,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "Forsyth, Robert G., and George H. Balazs. [Green",
                    "polygon": [
                        4.499,
                        8.6128,
                        7.3551,
                        8.6176,
                        7.3551,
                        8.7561,
                        4.499,
                        8.7513
                    ],
                    "spans": [
                        {
                            "offset": 99874,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "turtle, Chelonia mydas] Species profile: Life his-",
                    "polygon": [
                        4.7522,
                        8.7656,
                        7.3647,
                        8.7656,
                        7.3647,
                        8.9041,
                        4.7522,
                        8.9041
                    ],
                    "spans": [
                        {
                            "offset": 99923,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "tory and environmental requirements of the green",
                    "polygon": [
                        4.7522,
                        8.9136,
                        7.3599,
                        8.9184,
                        7.3599,
                        9.0569,
                        4.7522,
                        9.0473
                    ],
                    "spans": [
                        {
                            "offset": 99974,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "turtle, Chelonia mydas, in the Pacific Ocean",
                    "polygon": [
                        4.7569,
                        9.0616,
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                        9.1953,
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            "content": "The Report of Activities of the Southwest Fisheries Center is compiled by the Technical Writing/Editing Group at La Jolla from material submitted by the Center's staff. To change the delivery address of the Report of Activities, or to cancel your subscription, please notify Lorraine C. Prescott , at P.O. Box 271, La Jolla, CA 92038. Telephone: (619) 546-7063."
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            "content": "The U.S. Antarctic Marine Living Resource (AMLR) Program is a national program providing information needed for U.S. policy relating to the conservation and management of marine living resources in the ocean areas surrounding An- tarctica. The program is in support of U.S. par- ticipation in the Commission and Scientific Committee of the Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), which established a system for managing the living resources of the Antarctic ecosystem through inter- national cooperation. During 1988 the AMLR Pro- gram was transferred to the Southwest Fisheries Center (SWFC) where it is administered by the Antarctic Ecosystem Research Group (AERG)."
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            "content": "The Center is presently conducting an exten- sive review of CCAMLR goals to better deter- mine research direction of the AERG. To complete this review, three separate panels have been established. An in-house task force com- prised of Doug DeMaster, Roger Hewitt, Rennie Holt, Jeff Polovina, and Paul Smith reviewed AMLR and CCAMLR research conducted during the last few years and produced a background paper for members of a workshop panel. During the week of April 18 the workshop panel, com- prised of world-class experts, met at the Center to provide advice in designing the AERG re- search program. The workshop panel included the CCAMLR Scientific Committee Chairman, the conveners of the CCAMLR working groups on fish and krill, several experts from academia, and NOAA Fisheries experts. The workshop meeting was facilitated by Aleco Christakis of the American Institute for Interactive Management. Members of the third panel attended the workshop as observers and will serve as advisors to the Center concerning U.S. policy, interac- tions with other agencies, and liaison with"
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            "content": "UNITED STATES DEPARTMENT OF COMMERCE"
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            "content": "Attendees at the Antarctic Planning Workshop (left to right): Don Siniff, University of Minnesota; John Kapelouzos, American Institute for Interactive Management (AIIM); Pierre Kleiber, SWF .; John Bengtson, National Marine Mammal Laboratory; Margi Fiore, AIIM; Rennie Holt, SWFC; Traci LaBerge, AIIM; Alexander Christakis, AIIM; Jeff Polovina, SWFC; Polly Penhale, National Science Foundation; Michael Tillman, NOAA Fisheries, Washington, D.C .; Raymond Hilborn, University of Washington; Inigo Everson, British Antarctic Survey; Paul Smith, SWFC; Izadore Barrett, SWFC; Roger Hewitt, SWFC; Tim Smith, NEFC, Woods Hole Laboratory; John Gulland, University of London; Denzil Miller, Sea Fisheries Research Institute, South Africa; David Mackett, SWFC; and Karl- Hermann Koch, Institut Fur See Fischerei, West Germany. Not pictured, Robert Hofman, Marine Mammal Commission; Bruce Manheim, Environmental Defense Fund; and Tucker Scully, U.S. Department of State."
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            "content": "Fisheries Headquarters. The advisory panel mem- bers were Robert Hofman (Marine Mammal Com- mission), Bruce Manheim (Environmental Defense Fund), Polly Penhale (National Science Founda- tion), Tucker Skully (State Department), and Mike Tillman (NOAA Fisheries Headquarters)."
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            "content": "The workshop panel identified 76 research tasks which should be considered in developing our re- search plan. They grouped these into 12 categories which were paradigms, assessment, ecosystem in- teractions, stock structure, feeding, spatial pattern, surveys, fishery, history, experimental manage- ment, field methodology, and worry (concerns). The task force then reviewed these tasks and iden- tified 27 additional tasks which were placed into the above 12 categories plus a communications category."
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            "content": "The task force will use these 103 tasks to develop several options for the AMLR research strategy. These options will be reviewed by the advisory panel, which will make recommendations to the Center. A final research plan will be developed, which will be used to design the AMLR 1989-90 field season. (R. Holt, FTS 893-7098)"
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            "content": "COASTAL FISHERIES RESOURCES DIVISION"
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            "content": "La Jolla, California"
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            "content": "COASTAL EASTERN PACIFIC FISHERIES ENVIRONMENTAL INVESTIGATIONS"
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            "content": "California Current Eddy Dipole System Analyzed"
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            "content": "Physical Oceanographer Ronald Lynn and coauthor Dr. James Simpson of Scripps Institution of Oceanography have completed final editing on two manuscripts dealing with the oceanography of the California Current System off southern Califor- nia. The papers are to be published in the Journal of Geophysical Research. The manuscript, with Lynn as senior author, \"The influence of bathymetry upon the flow of the undercurrent off southern California,\" was described in the Septem- ber-October 1988 Report of Activities. The other manuscript, with Simpson as senior author, \"A mesoscale eddy dipole on the offshore California Current,\" reports on satellite and shipboard obser- vations taken aboard the David Starr Jordan in July 1985."
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            "content": "This most recent report describes the dis- covery in 1985 of two opposing eddies or gyres about 250 miles (400 km) southwest of Point Conception. These eddies extended deep into the water column, entraining the California Un- dercurrent waters at depth and the California Current waters near the surface. There is evidence that the pair of eddies, called an eddy dipole, influenced offshore biological produc- tivity and general circulation patterns off of the Southern California Bight during the time of observation in July 1985."
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            "content": "There is a transition zone in the California Current System between inshore coastal and offshore oceanic flow. This transition zone is associated with the main core of the California Current and is populated with offshore mesos- cale eddies. The observation of a mesoscale eddy dipole, 400 km southwest of Point Concep- tion, in satellite imagery was confirmed by the shipboard data (Figures 1 and 2). Water mass analysis showed that the anticyclonic member"
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            "content": "119"
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            "content": "118°"
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            "content": "116"
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        {
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            "content": "Figure 3. The distribution of oxygen deficit in a density range found near 200 m corresponds close- ly to the 250 m circulation pattern and shows water characteristics typical of the coastal undercurrent in the dipole."
        },
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            ],
            "content": "In the companion manuscript by Lynn and Simpson, analysis of the long term CalCOFI data implies that the instability of the undercurrent and subsequent eddy formation are typical of this loca- tion at this time of year. (R. Lynn, FTS 893-7084)"
        },
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            "content": "SURVEY SYSTEMS DEVELOPMENT AND EVALUATION"
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            "content": "Egg and Larva Production of Northern Anchovy in 1989"
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            "content": "The egg and larva samples collected during the 8901 cruise (January 19-February 4) have been sorted, staged, aged, and analyzed to provide es- timates of daily egg production. The estimate of the 1989 daily egg production is one of the major inputs to the spawning biomass of northern anchovy."
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            "content": "The survey area includes CalCOFI lines 77.0 (Pt Buchon, CA) to 93.0 (Del Mar, CA). Forty-three"
        },
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            ],
            "content": "CalVET tows were taken out to station 70.0, and 57 Bongo tows were taken up to station 120.0 (Figure 4). Egg samples from CalVET tows and larvae from Bongo tows were used to estimate egg and larva production and mortality (Lo 1986, Fish. Bull., U.S. 84(2))."
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            "content": "35."
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            "content": "CALCOFI SURVEY PATTERN"
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            "content": "CONCEPTION"
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            "content": "Figure 4. CalCOFI survey pattern."
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            "content": "The preliminary estimates of daily egg production and daily egg instantaneous mor- tality rate are 2.01/0.05 m2 (SE=0.61) and 0.58 (SE=0.062). The larva production at hatching is 0.142/0.05 m2 (0.014). Both egg and larva production were lower than previous years (Table 1). The average temperature of tows where eggs were present was 13.17℃ compared to 13.30°C in 1988. With such a low tempera- ture, we expect that only 5% of one-year-olds will be mature, and the estimated spawning biomass will be below the 1 million metric ton estimate of 1988."
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            "content": ".80"
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            "content": "35"
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            "content": "288"
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            "content": "SAN DIEGO"
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            "content": "-80"
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            "content": "-90"
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                    "length": 5
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            ],
            "content": "$5 90"
        },
        {
            "spans": [
                {
                    "offset": 12134,
                    "length": 3
                }
            ],
            "boundingRegions": [
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            ],
            "content": "395"
        },
        {
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            ],
            "content": "30"
        },
        {
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                }
            ],
            "content": "(N. Lo, FTS 893-7123)"
        },
        {
            "spans": [
                {
                    "offset": 12163,
                    "length": 1
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "3"
        },
        {
            "spans": [
                {
                    "offset": 12165,
                    "length": 41
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "SURVEY SYSTEMS DEVELOPMENT AND EVALUATION"
        },
        {
            "spans": [
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                    "offset": 12207,
                    "length": 42
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            ],
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                }
            ],
            "content": "Quantitative Deep Oblique Tows Implemented"
        },
        {
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                {
                    "offset": 12250,
                    "length": 793
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            ],
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                }
            ],
            "content": "Fishery Biologist Paul Smith reports that the quantitative deep oblique tow has been imple- mented by Bill Flerx, Fishery Biologist, for the third year. The tow is intended to encompass the entire vertical range of sablefish and Dover sole eggs for the purpose of estimating egg production rates. Mature Dover sole and sablefish inhabit the ocean floor at depths of 200 to 1000 fathoms (400-1800 meters) and all sablefish and some Dover sole in- habit the surface layer as part of their early life history. This requires the use of an oblique tow which encompasses the entire water column. The standard CalCOFI tow encompassed only the upper 70 meters for the first years of sampling. It was deepened to 140 meters from 1951 to 1966 and further deepened to 210 meters from 1969 to the present."
        },
        {
            "spans": [
                {
                    "offset": 13044,
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                }
            ],
            "content": "The quantification of oblique tows is ac- complished by one value, the standard haul factor (SHF) and the verification of one assumption. The assumption is that approximately equal volumes are filtered from each depth of interest. This assump- tion allows one to refer eggs per unit volume of water to eggs per unit area of sea surface."
        },
        {
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            ],
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                }
            ],
            "content": "The SHF allows each observation to be stand- ardized to a unit referred to as eggs per 10 space meter of sea surface area. The equation for the standardized haul factor is (Kramer and Ahlstrom 1968, CalCOFI Atlas 9):"
        },
        {
            "spans": [
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                    "offset": 13598,
                    "length": 5
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            ],
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                }
            ],
            "content": "SHF ="
        },
        {
            "spans": [
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                    "offset": 13604,
                    "length": 10
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            ],
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                }
            ],
            "content": "10*D R*A*P"
        },
        {
            "spans": [
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                    "offset": 13615,
                    "length": 372
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            ],
            "boundingRegions": [
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                    "pageNumber": 6,
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                }
            ],
            "content": "where \"D\" is the depth in meters, \"R\" is the number of revolutions of a flow meter in the mouth of the net, \"A\" is the area of the mouth of the net, and \"P\" is the length of the column of water in meters needed to effect one revolution of the flow meter. The units for the reciprocal of the SHF are the mean number of cubic meters of water filtered per 10 meters of depth."
        },
        {
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                }
            ],
            "content": "For shallow tows (<200 m) the depth of tow and trajectory of the net are estimated from the mean of the tangents of the wire angle. For deep tows, the wire angles do not provide accurate estimates of depth, so for this purpose we have included a conductivity temperature and depth device (CTD). From this instrument we display measures of depth"
        },
        {
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            ],
            "content": "and record depth and temperatures each 20 seconds (Figure 5). The display allows us to control the ship and winch speeds to follow an approximately straight trajectory (Figure 5). The distributions of the standard haul factor are shown in Figure 6. The lower haul factor for the deep bongo reflects the greater volume of water filtered per unit depth, not the greater depth."
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            "content": "0"
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            "content": "200"
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            "content": "10"
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            "content": "400"
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            "content": "DEPTH (m)"
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            "content": "0"
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            "content": "600"
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            "content": "800"
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            "content": "-10"
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            "content": "RATE OF ASCENT (m/min)"
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            "content": "-20"
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            "content": "30"
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            "content": "120"
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            "content": "TIME (minutes)"
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            "content": "Figure 5. The trajectory of a deep bongo tow to 1200 meters depth (scale at left). The rates of ascent and descent (scale at right) are plotted each 20 seconds. On descent, the desired rate is 15 meters per minute. On ascent the desired rate is 7 meters per minute."
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            "content": "Deep Bongo"
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            "content": "PROPORTION"
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            "content": "2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 STANDARD HAUL FACTOR"
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            "content": "Figure 6. Relationship between the standard haul factor for the deep bongo (left) and the standard bongo (right)."
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            "content": "The main reason the deep bongo has a smaller standard haul factor is that the net is towed faster. The faster tow makes precise con-"
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        {
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            "content": "4"
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            "content": "trol of the ship speed possible. The equation that relates the tangent of the wire angle to the ship speed is:"
        },
        {
            "spans": [
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            "content": "V = V. + exp (r*tan a)"
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            ],
            "content": "where V is estimated ship speed in meters per second, Vo is the estimated intercept from a nonlinear least squares fit to the expected equation by the Marquardt algorithm, \"r\" is the exponential slope parameter and \"tan a\" is the tangent of the wire angle in degrees. The parameters and standard errors for the equation are Vo=0.692 (0.039) and r=0.271 (0.037). The scatter plot is shown in Figure 7. The curve explains about 54% of the variance of the data."
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            "content": "1.3"
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            "content": "1.2"
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            "content": "METERS PER SECOND"
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            "content": "WIRE ANGLE (degrees(tangent scale))"
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            "content": "Figure 7. A scatter plot and fitted exponential curve for the empirical relationship between the speed of tow and the tangent of the wire angle at the surface."
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            "content": "In practice, it is not possible to tow the net in an even trajectory. It takes several minutes before the net responds to the change in ship's speed with the long towing wire. Also, there are undersea currents at different times and places which alter the con- figuration of the towing wire. Thus, our prime requirement is that each 10 meter level has equivalent variation in volume filtered over the survey area even though there will be cases of undersampling and oversampling on individual tows. The success of this procedure depends on the actual distribution of the organisms in question. In the extreme case, if the eggs are randomly dis- tributed, the assumption of even trajectories is un- necessary. If the non-randomness is exhibited as broad depth zones (50 meters +) containing the various stages of eggs, presumably the number of"
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            "content": "alternating episodes of over- and under- sam- pling would be sufficient to result in little or negligible bias. If the layer proves to be so compact that significant bias or imprecision arises from trajectory error, which we cannot control, the procedure will have to be refined. (P. Smith, FTS 893-7169)"
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            "content": "COMMERCIAL AND RECREATIONAL FISHERIES RESEARCH FOR MANAGEMENT"
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            "content": "Recent Trends in Worldwide Tuna Production and Trade Analyzed"
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            "content": "Sam Herrick, Industry Economist at the La Jolla Laboratory, and Tony Applebaum, Student Intern from San Diego State University, have completed an analysis of recent trends in global catches of tuna and canned tuna production. They find that worldwide catches of tuna have increased steadily from 2.462 million metric tons (mt) in 1979, to 3.418 million mt in 1986, an increase of 39% in 8 years. From 1979 to 1985, global production of canned tuna rose from 607,000 mt to 703,000 mt, an increase of 16%. While these increases in catches and canned tuna production are impressive in themselves, perhaps more striking is the considerable development in the harvesting and canning capabilities of less developed countries relative to that of the historically dominant tuna har- vesters and canners, namely Japan, the United States, Spain and France. The rapid develop- ment of tuna industries in southeast Asia (Thailand, Indonesia, Philippines, Korea, Taiwan, Malaysia, India, China), Latin America (Mexico, Venezuela, Panama, Brazil), the island nations of the western Pacific, and Africa (Ghana, Ivory Coast) has been largely due to their proximity to abundant tuna resources, rela- tively low-cost labor sources, strong government backing, and investments from abroad. How- ever, while these are necessary conditions, the impetus for developing tuna industries in these areas relates to a growing worldwide demand for tuna and processed tuna products."
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            "content": "The linear trend model in Figure 8 shows global tuna catches increasing at an annual average rate of 5% between 1979 and 1986, with most of this increase due to growth in the fishing operations of developing nations. Growth in the catches of developing nations"
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            "content": "5"
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            "content": "increased at an annual rate of 6% over the period, from 1.2 million mt in 1979 to 1.9 million mt in 1986. This compares to average annual growth rate of 3%, with much more variability, for developed nations, with their catches ranging from 1.3 million mt in 1979 to 1.5 million mt in 1986. By 1986, developing nations accounted for more than half of the world's annual tuna catch. The trend model predicts that by 1995 the global tuna catch will reach 4.5 million mt (plus/minus 300,000 mt). The global catch trend, projection and 95% confidence bands are shown in Figure 8. Separate linear forecasts for the developing nations' catch and the developed nations' catch are 2.7 million mt (plus/minus 200,000 mt) and 1.8 million mt (plus/minus 400,000 mt) respectively by 1995."
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            "content": "4.6 -"
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            "content": "Upper 95% CB"
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            "content": "MILLIONS OF METRIC TONS"
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            "content": "Predicted"
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            "content": "YEAR"
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            "content": "Figure 8. Actual and predicted global tuna catches, 1979-1995."
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            "content": "Globally, canned tuna production grew at an average rate of 3% annually from 1979 through 1985 as shown in Figure 9. The rapid development of canned tuna processing capability in developing nations over the period accounts for most of this growth. From 1979 to 1985 canned production by developing nations increased 84%, at an average annual rate of 11% compared to a 5% increase for developed nations, at an average annual rate of 1%. By 1985, developing nations accounted for 22% of the world's annual canned tuna production vis a vis 14% in 1979. The linear trend model for canned tuna predicts global production will reach 900,000 mt (plus/minus 200,000 mt) by 1995. The developing nations' production is estimated to be 270,000 million mt (plus/minus 60,000 mt), and production by developed nations is predicted to be 630,000 mt (plus/minus 150,000 mt) by 1995, based on linear trends estimated for each."
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            "content": "MILLIONS OF METRIC TONS (Canned product)"
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            "content": "Upper 95% CB"
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            "content": "Predicted"
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            "content": "Lower 95% CB"
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            "content": "Figure 9. Actual and predicted global canned tuna production, 1979-1995."
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            "content": "If prevailing trends continue, and assuming that tuna resources can support expanded har- vests, global output of raw and processed tuna may increase by as much as 30% by 1995. If recent patterns of growth continue into the fu- ture, this expansion is likely to be led by develop- ing nations with burgeoning tuna industries, in which case, the tuna industries of the developed nations will continue to face more intense com- petition, both on the fishing grounds and in the marketplace. (S. Herrick, Jr., FTS 893-7111)."
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            "content": "Progress of Southern California Sportfish Economic Survey"
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            "content": "Industry Economist Cynthia Thomson has been working with a private contractor, HBRS of Madison, Wisconsin, to complete development of survey instruments for the southern California sportfish economic survey. The survey is spon- sored jointly by the National Marine Fisheries Service and the California Department of Fish and Game, and is designed to: 1) estimate the number of marine recreational anglers residing in southern California; 2) estimate the number of fishing trips for finfish and shellfish during the year and the distribution of these trips by key variables such as area and target species; 3) predict the effect of catch rates and angler char- acteristics (such as income, boat ownership, education and ethnicity) on the demand for fish- ing; and 4) estimate the economic value of the recreational fishery and how this value is af- fected by changes in catch rates."
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            "content": "The sampling design involves: 1) a random telephone canvass of the general population in southern California coastal counties to determine the prevalence of finfishing and shellfishing activity; and 2) a follow-up mail questionnaire directed at those telephone respondents who made at least one saltwater fishing trip in the previous 12 months. The survey covers both shore- and boat-based trips in southern California, including boat trips depart- ing from U.S. waters but fishing in Mexican waters. Anglers who do not reside in southern California coastal counties (and are therefore not included in the telephone canvass) will also be represented in the survey. Names and telephone numbers of such individuals will be obtained from the intercept por- tion of the Marine Recreational Fishery Statistics Survey. (C. Thomson, FTS 893- 7116)"
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            "content": "Economic Models of Pacific Coast Commercial Fisheries"
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            "content": "Dale Squires, Industry Economist, SWFC, and Wesley Silverthorne, Regional Economist, SWR, continued developing a mixed integer program- ming model of the west coast sablefish fleet. The model will be used to address the allocation of sablefish quota between the fixed gear (fish pot and long line) and groundfish trawl fleets. Squires has also been working with Samuel Herrick, Industry Economist, in the initial development stages of a coast-wide quadratic programming model. This model will incorporate the major gear types and fisheries and will be used to analyze policy ques- tions as they arise. (D. Squires, FTS 893-7113)"
        },
        {
            "spans": [
                {
                    "offset": 24361,
                    "length": 66
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "New Chairman for PFMC's Scientific and Statistical Committee (SSC)"
        },
        {
            "spans": [
                {
                    "offset": 24428,
                    "length": 541
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "At the Pacific Fishery Management Council meeting, March 1989, Dr. Daniel Huppert, Industry Economist at the La Jolla Laboratory, was installed as Chairman of the Scientific and Statistical Com- mittee. Dr. Huppert has been a member of the committee since 1980, and takes over the chair- manship from Dr. Donald Bevan of the University of Washington. Duties of the Chairman include developing meeting agendas, running the five or so meetings per year, and reporting SSC comments and recommendations to the Council. (D. Huppert, FTS 893-7114)"
        },
        {
            "spans": [
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            ],
            "content": "FISHERY-MARINE MAMMAL INTERACTIONS DIVISION"
        },
        {
            "spans": [
                {
                    "offset": 25014,
                    "length": 20
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            ],
            "boundingRegions": [
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            ],
            "content": "La Jolla, California"
        },
        {
            "spans": [
                {
                    "offset": 25035,
                    "length": 26
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            ],
            "boundingRegions": [
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            ],
            "content": "BIOLOGY ASSESSMENT PROGRAM"
        },
        {
            "spans": [
                {
                    "offset": 25062,
                    "length": 68
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            ],
            "boundingRegions": [
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            ],
            "content": "Report Completed on Mineralization Patterns in Teeth of Pilot Whales"
        },
        {
            "spans": [
                {
                    "offset": 25131,
                    "length": 648
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            ],
            "boundingRegions": [
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                    "pageNumber": 9,
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                }
            ],
            "content": "Investigation of age determination in pilot whales has been undertaken by Christina Lock- yer, visiting research scientist from the Sea Mam- mal Research Unit, Cambridge, England, during her sabbatical year here at the Southwest Fisheries Center. The study is needed in order to verify age for catches of long-finned pilot whales (Globicephala melas) taken in the subsis- tence-type fishery around the Faroe Islands in the northeast Atlantic. This year pilot whales will be discussed at the meeting of the Scientific Committee of the International Whaling Com- mission, in San Diego, beginning May 20. Lock- yer plans to present her findings there."
        },
        {
            "spans": [
                {
                    "offset": 25780,
                    "length": 1251
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            ],
            "boundingRegions": [
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                    "pageNumber": 9,
                    "polygon": [
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                }
            ],
            "content": "The true incremental deposition rate of laminae in hard tissues has been investigated and established directly for some marine mam- mal species, but not pilot whales, by studying teeth from animals of known age or history, and the use of tetracycline administrations to \"time- mark\" hard tissues (i.e. dentine and cementum in teeth and bone). Teeth of mammals have frequently been used to determine age, and the method of counting laminations in the dentine and/or cementum of the teeth is routinely employed for most species of toothed cetaceans. The main problem is how to interpret laminae in relation to real time: what constitutes a daily, lunar and annual growth layer? The laminations in the dentine and/or cementum have generally been defined in terms of differing mineralization density and/or quality: high and low, a con- tiguous pair of which constitute a growth layer group (GLG), as defined in the review report edited by Fishery Biologist William Perrin and Wildlife Biologist Al Myrick, Jr. (Age determina- tion of toothed whales and sirenians. Rep. Int. Whal. Commn (Spec. Iss.) 3:1-229, 1980). Detailed examination of teeth of many mammal species reveal that events may occur which ap- pear to create systemically rather than locally"
        },
        {
            "spans": [
                {
                    "offset": 27032,
                    "length": 1
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 9,
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                }
            ],
            "content": "7"
        },
        {
            "spans": [
                {
                    "offset": 27034,
                    "length": 552
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 10,
                    "polygon": [
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                }
            ],
            "content": "caused disturbances in the normal regular deposi- tion rate of laminae in the teeth. (Myrick, Jr., A. C. 1988, Is tissue resorption and replacement in per- manent teeth of mammals caused by stress-induced hypocalcaemia? In: Z. Davidovitch (ed.), The biological mechanisms of tooth eruption and root resorption, pp. 379-89. EBSCO Media, Birmin- gham, AL 35233.) Myrick has described such dis- turbances (mineralization anomalies) in cetacean teeth, and has proposed models which may explain the effect of \"stressors\" in causing these anomalies in teeth."
        },
        {
            "spans": [
                {
                    "offset": 27587,
                    "length": 674
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 10,
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            ],
            "content": "The purpose of Lockyer's study is twofold. First, the aim has been to determine the true incremental rate of deposition of dentinal and cemental laminae in the teeth of pilot whales in order to interpret GLG's correctly for age, upon which many biologi- cal parameters are dependent for accuracy. Second, the aim has been to progress beyond this stage, and compare teeth extracted from a) the same individual to investigate conformity of GLG pat- terns, and b) different individuals derived from various sources and localities to study easily iden- tifiable mineralization anomalies which might have biological significance, and assist identification of potential stressors."
        },
        {
            "spans": [
                {
                    "offset": 28262,
                    "length": 756
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            ],
            "boundingRegions": [
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                    "pageNumber": 10,
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            ],
            "content": "One tooth was available for each of seven known-history captive northeast Pacific short- finned pilot whales, a closely related species Globicephala macrorhynchus. This material was made available by Sea World, San Diego. Six of the seven animals had received tetracycline medica- tion sometime during their lives. Teeth were col- lected from these animals at death. Investigation indicated that in animals of age years, numbers of cemental and dentinal growth layer groups (GLG's) in the teeth were equal. From comparison of known history, tetracycline marks and other biological in- formation, the implied incremental rate of deposi- tion is one GLG per year. The dentinal and cemental GLG's may therefore be used directly for age determination in years."
        },
        {
            "spans": [
                {
                    "offset": 29019,
                    "length": 549
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            ],
            "boundingRegions": [
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                    "pageNumber": 10,
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                }
            ],
            "content": "In addition, teeth were available for each of 235 northeast Atlantic long-finned pilot whales, and duplicate teeth were examined for 10 of these. This sample comprised 91 whales captured on Septem- ber 11, 1986, in the Faroese drive fishery at Sandur on the island of Sandoy, at approximately 61°30'N, 0°11'E, 36 whales stranded on August 21, 1982, at Rif in Iceland, at approximately 64°56'N, 23°50'W, and 108 whales stranded on October 26, 1986, at Thorlakshofn in Iceland, at approximately 63º51'N, 21°22'W. Comparison of duplicate teeth from the"
        },
        {
            "spans": [
                {
                    "offset": 29569,
                    "length": 358
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            ],
            "boundingRegions": [
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                    "pageNumber": 10,
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            ],
            "content": "mandible of single individuals, revealed that GLG counts were similar and deposition patterns and mineralization anomalies were consistent in teeth from the same individual. This implies that all teeth are potentially good for determining age and that deposition patterns are characteristic for the individual as well as being evidence of sys- temic control."
        },
        {
            "spans": [
                {
                    "offset": 29928,
                    "length": 1472
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            ],
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                }
            ],
            "content": "Investigation of mineralization anomalies in the teeth from captive whales (for which stressors could be identified) as well as in teeth from free-living northeast Atlantic long-finned pilot whales indicated the following characteristics, previously described by Myrick (1988), for which they were scored in terms of occurrence by sex, current age, reproductive maturity, age at which the anomaly appeared, and in which calendar year. These are 1) mineralization in- terference: irregularities in the lamina formation emanating from differential inhibition/activation of odontoblasts at the mineralization front (nor- mally, the pulp cavity edge), causing realignment of the dentinal tubules and resulting in wavey lines, swirls and asymmetry, which disrupt usual patterns yet do not prevent continuous lamina formation; 2) dentinal resorption: actual erosion and frequent repair of existing regular laminated dentinal tissue, resulting in an amorphous and/or globular appearance, frequently with holes, cut- ting across and into regular tissue; 3) cemental disturbance: any anomalous appearance of the usual regular laminated cemental tissue, includ- ing mineralization interference and resorption; 4) pulp stones: discrete nodules containing con- centric rings in the dentine; 5) marker lines: both in dentine and often cementum: discrete laminae which are regular yet noticeably different in ap- pearance from the boundary layers in morphol- ogy and affinity for stain."
        },
        {
            "spans": [
                {
                    "offset": 31401,
                    "length": 703
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            ],
            "boundingRegions": [
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                    "pageNumber": 10,
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            ],
            "content": "Results of the scoring show that mineraliza- tion interference increases with age reaching 60- 100% incidence in animals over 14 years in both Icelandic and Faroese animals. The incidence is related to age rather than state of maturity. Cemental disturbance has a low incidence in Icelandic whales, and reaches ca 50% incidence in Faroese whales. This is also age-and maturity- related. Dentinal resorption has not been recorded in any immature animals of either sex. Incidence reaches a peak in old males, yet does not appear to greatly affect females until age 25 years. The dentinal resorption occurs very fre- quently in the Faroese animals, reaching almost 100% incidence in males. The incidence in"
        },
        {
            "spans": [
                {
                    "offset": 32105,
                    "length": 1
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            ],
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            "content": "8"
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            "spans": [
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            "boundingRegions": [
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                    "pageNumber": 11,
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            ],
            "content": "Icelandic animals is <10% until age 25+ years when incidence rises from 20% to 40% in very old animals (30+ years). The difference in these levels of incidence by location and sex could indicate varying degrees of susceptibility, perhaps genetical- ly controlled, or could simply be a measure of local stress factors produced by the environment or generated by behavioral traits within the school. Could such circumstances, revealed in the teeth, result in differential mortality and sex ratios? Pulp stones, when present, tend to be associated with age at which puberty usually occurs, and the in- cidence does not greatly increase thereafter. Marker lines occur throughout life at all ages, after age one year, regardless of state of maturity, and therefore, as anticipated, incidence increases with age; calen- dar year is also a significant factor for Icelandic samples. In particular, the year 1960 is very prominent for Iceland (both in Thorlakshofn and Rif), when >40% teeth from whales which would have been alive at that time exhibited a marker line. This year does not feature in the Faroese sample. What may have caused this is not known, but a future investigation of the environment at that time may be worthwhile. Of particular interest is the question that if factor(s) affecting two independent groups of Icelandic whales did not influence the Faroese group, could these whales have originated in separate regions and probably not mixed?"
        },
        {
            "spans": [
                {
                    "offset": 33561,
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            ],
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                }
            ],
            "content": "Observations from the known-history captives indicate that likely stressors causing (directly or indirectly) mineralization anomalies may include sexual maturation, pregnancy and/or parturition, periods of starvation, as well as changes in health and life style. Environmental as well as inherent physiological rhythms are likely to be key factors worth investigating in the future."
        },
        {
            "spans": [
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                    "offset": 33944,
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            ],
            "content": "This study was facilitated by the co-operation of the Sea World Research Institute and Hubbs Marine Research Center, San Diego, for provision of material and access to data on captive pilot whales. The provision of material and data on pilot whales by the Marine Research Institute, Reykjavik, Iceland, and also the Natural History Museum, Tor- shavn, Faroe Islands, are gratefully acknowledged. In particular, J. S. Leatherwood, J. Sigurjonsson and D. Bloch are thanked for their help. This study was funded by the U.S. Department of Commerce, Grant Award No: NA-88-ABH- 00040, while a resi- dent at the Southwest Fisheries Center, La Jolla, California, where facilities were made available. Help from Priscilla Akin, Aleta Hohn and Al Myrick is greatly appreciated. (C. Lockyer, FTS 893-7090)"
        },
        {
            "spans": [
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            ],
            "content": "FISHERY DEPENDENT ASSESSMENT PROGRAM"
        },
        {
            "spans": [
                {
                    "offset": 34776,
                    "length": 132
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Effects of Dolphin Group, Percent Coverage, and Fleet Size on Estimates of Dolphin Mortality Derived From Tuna Vessel Observer Data."
        },
        {
            "spans": [
                {
                    "offset": 34909,
                    "length": 986
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Records of dolphins killed incidental to purse- seining for tuna by U.S. registered vessels fishing in the eastern tropical Pacific Ocean during 1987, were analyzed to assess the effects of three factors on estimates of dolphin mortality in- curred by an entire fleet, when only a portion of the fleet is actually observed. Data from 1987 were used because this is the first year that nearly 100% of trips carried observers. The three fac- tors were 1) dolphin group, 2) percent coverage (percent of fishing trips observed by scientific technicians), and 3) fleet size. Estimates were derived using the ratio estimator (kill/day) for eight dolphin groups (total dolphins, northern offshore spotted dolphins, eastern spinner dol- phins, whitebelly spinner dolphins, unidentified spinner dolphins, common dolphins, striped dol- phins, and other dolphins), for simulated fleet sizes of 33, 20, 10 and 5 boats, and simulated sampling levels of 25%, 33%, 50%, 75%, and 96% observer coverage."
        },
        {
            "spans": [
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                }
            ],
            "content": "Four statistical aspects of these mortality es- timates were investigated to assess the effects of the three factors named above, on the estimates: 1) relative bias of the estimate, 2) coefficient of variation of the estimate, 3) frequency distribu- tions of replicate estimates, and 4) 95% con- fidence intervals of replicate estimates."
        },
        {
            "spans": [
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            ],
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                }
            ],
            "content": "Mortality estimates and their statistical (sam- pling) characteristics were affected in decreasing order of influence by dolphin group type, per- cent coverage, and fleet size (Figures 1 and 2). The strongest control on estimates was the char- acteristics of the data contributing to the es- timates; for groups with relatively frequent and relatively similar kill/trip (e.g., total dolphins), a given level of accuracy and precision could be achieved with relatively low percent coverage even with relatively small fleets. Intermediate levels were adequate for groups with inter- mediate data characteristics (e.g., whitebelly spinner dolphins, with relatively infrequent but relatively homogeneous kills), but for dolphin groups with relatively rare and heterogeneous"
        },
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                    "offset": 37004,
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            "content": "9"
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        {
            "spans": [
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                    "length": 161
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            "boundingRegions": [
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                }
            ],
            "content": "kill/trip (e.g., common dolphins), much higher levels of coverage are required to achieve the same level of accuracy and the level increases with smaller fleets."
        },
        {
            "spans": [
                {
                    "offset": 37168,
                    "length": 2
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            "content": "28"
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        {
            "spans": [
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                    "length": 14
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            "boundingRegions": [
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                    "pageNumber": 12,
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                }
            ],
            "content": "DOLPHIN GROUPS"
        },
        {
            "spans": [
                {
                    "offset": 37186,
                    "length": 4
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            ],
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            "content": "26 -"
        },
        {
            "spans": [
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                    "length": 2
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            "content": "24"
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                    "length": 5
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            ],
            "content": "TOTAL"
        },
        {
            "spans": [
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                    "length": 4
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            "boundingRegions": [
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            "content": "22 -"
        },
        {
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            "content": "25% COVERAGE"
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            "content": "50% COVERAGE"
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            "content": "75% COVERAGE"
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            "content": "FLEET SIZE (5,10,20)"
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        {
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            ],
            "content": "Figure 2. Coefficients of variation for estimates of annual mortality. The first three sets of columns show results for 25% coverage, the next three sets show results for 50% coverage, and the last three sets show results for 75% coverage."
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            ],
            "content": "As specific examples, coefficient of variations (CVs) 20% or less could be achieved for estimates of total annual mortality given 25% coverage of a fleet of 20 boats, or 50% coverage of a fleet as small as 5 boats. CVs of 20% or less for whitebelly spinner dolphins required coverages of at least 75% for a fleet of 5 boats, and at least 50% for fleets of 20 boats. CVs of 20% or less could not be achieved"
        },
        {
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            "content": "for estimates of common dolphin annual mor- tality with coverages less than 100%, at any fleet size."
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            ],
            "content": "Because neither fleet size nor dolphin group type can be controlled by a sampling program, the only alternative available to achieve given levels of accuracy and precision in estimates of dolphin mortality is to manipulate the level of observer coverage. To protect equally all groups, it would be necessary to use the level required for those dolphin groups characterized by the \"messiest\" data. (E. Edwards, FTS 893- 7099)"
        },
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            "content": "Environmental Variability in the Eastern Tropical Pacific, 1986-1988"
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            ],
            "content": "Oceanographer Paul Fiedler reports that large interannual changes in the eastern tropical Pacific (ETP) are evident in environmental data collected on MOPS dolphin stock assessment cruises since 1986 (August-November, NOAA Ships McArthur and David Starr Jordan). A smoothed time series of the Southern Oscillation Index (Figure 3) shows that a moderate El Niño occurred in 1987. In 1988, this El Niño was followed by a cold-water event (\"La Niña\"). As an illustration of the extreme environmental variability observed during the first 3 years of MOPS, the range of SOI during 1986-1988 ex- ceeds the range before, during, and after the great 1982-1983 El Niño."
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            "content": "70"
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            "content": "YEAR"
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            "content": "Figure 3. Smoothed time series of the Southern Oscillation Index (SOI). Data from Climate Diagnostics Bulletin (NOAA/NWC/Climate Analysis Center)."
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            "content": "Anomalously warm surface temperatures were observed in the central Pacific, at the western edge of our study area, by summer 1986 (Climate Diagnostics Bulletin, NOAA/NWS/Climate Analysis Center). Our XBT data were supplemented by some data from other NOAA ships and ships of opportunity. They were analyzed by Dave Behringer at NOAA/ERL/Atlantic Oceanographic and Meteorological Laboratory to produce fields of"
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            "content": "10"
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            "content": "EZ EASTERN SPINNER"
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            "content": "surface temperature and depth of the 20℃ isotherm (thermocline depth)."
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            "content": "During August-November 1986, we observed surface temperature anomalies of 0 to +2℃ in the ETP, with the warmest anomalies in the equatorial cold tongue west of 105°W. The equatorial ther- mocline ridge was anomalously deep and displaced to the south. In 1987, surface temperature anomalies were at least +1℃ throughout most of our study area and +2 to +3℃ in the equatorial cold tongue. The depth and position of the equatorial ridge were closer to normal, but the thermocline ridge at 10°N, between the North Equatorial Countercurrent and the North Equatorial Current, was weaker than in 1986. These anomalies indicate changes in currents and water mass distribution associated with El Niño. In 1988, the equatorial cold tongue was as much as 3℃ colder than normal, but surface temperatures north of the equator were generally within 1℃ of normal. The equatorial ridge had shoaled, indicat- ing a strengthened South Equatorial Current."
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            "content": "Latitude"
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            "content": "1986"
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                        9.6231,
                        3.9151,
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                }
            ],
            "content": "Figure 4. Surface chlorophyll values (mg m~3) ob- served during MOPS cruises in August-November"
        },
        {
            "spans": [
                {
                    "offset": 41701,
                    "length": 932
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 13,
                    "polygon": [
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                }
            ],
            "content": "Surface chlorophyll data show a major biological response to the 1986-1988 environ- mental variability (Figure 4). Although no climatology exists for chlorophyll, the 1986 values appear \"normal\" compared to 1967 EASTROPAC results. Equatorial upwelling sus- tained high surface chlorophyll concentrations between 5°N and 5°S, increasing towards the coast of Ecuador and Peru. Chlorophyll values were low north of the 10°N thermocline ridge and to the west towards the oligotrophic sub- tropical gyre. In 1987, surface chlorophyll con- centrations were significantly lower than in 1986, especially along the equator where the temperature data indicated reduced upwelling of cold, nutrient-rich water. In 1988, surface chlorophyll concentrations were more than twice as high as in 1987 and also significantly higher than in 1986. Equatorial upwelling in 1988 was driven by anomalously strong trade winds (Climate Diagnostics Bulletin)."
        },
        {
            "spans": [
                {
                    "offset": 42634,
                    "length": 839
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 13,
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                }
            ],
            "content": "We will integrate these chlorophyll data with our temperature, nutrient and subsurface chlorophyll data in a presentation at the first annual conference of The Oceanography Society in August and in a paper to be submitted to Science. Many people have helped collect these data since this project was initiated by Fishery Biologist Steve Reilly, who is also direct- ing bird censuses and biological collections on the MOPS cruises. We acknowledge Vicky Thayer (formerly SWFC), Julie Ellingson (PMC), Gregg Thomas (AOML), Oceanographer Lisa Lierheimer and Computer Specialist Robert Hol- land. The results of these efforts will be an unprecedented time series of environmental data in the eastern tropical Pacific and will be invalu- able in the interpretation of variability in dolphin abundance and distribution. (P. Fiedler, FTS 893-7016)"
        },
        {
            "spans": [
                {
                    "offset": 43474,
                    "length": 19
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            ],
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                }
            ],
            "content": "HONOLULU LABORATORY"
        },
        {
            "spans": [
                {
                    "offset": 43494,
                    "length": 16
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Honolulu, Hawaii"
        },
        {
            "spans": [
                {
                    "offset": 43511,
                    "length": 64
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Scientists Participate in International Marine Debris Conference"
        },
        {
            "spans": [
                {
                    "offset": 43576,
                    "length": 224
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 13,
                    "polygon": [
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                }
            ],
            "content": "A number of fishery scientists from the Honolulu Laboratory participated in the Second International Conference on Marine Debris, which was held in Honolulu, Hawaii, April 2-7, 1989. Conference participants from all over the"
        },
        {
            "spans": [
                {
                    "offset": 43801,
                    "length": 2
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "11"
        },
        {
            "spans": [
                {
                    "offset": 43804,
                    "length": 429
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 14,
                    "polygon": [
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                }
            ],
            "content": "world presented more than 100 papers on a wide range of topics: sources of marine debris; entangle- ment and ghost fishing; ingestion of marine debris; economic impacts; and solutions through technol- ogy, law, public policy, and education. The con- ference was chaired by Richard S. Shomura, formerly director of the Honolulu Laboratory and a key figure in organizing the first International Conference on Marine Debris in 1984."
        },
        {
            "spans": [
                {
                    "offset": 44234,
                    "length": 1044
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 14,
                    "polygon": [
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                }
            ],
            "content": "Fishery Biologist Tim Gerrodette of the Honolulu Laboratory presented the paper \"An ex- perimental study of derelict gill-net fragments in the central Pacific Ocean,\" which was coauthored by Fishery Technicians Barry K. Choy and Lisa M. Hiruki. The paper gives the results from a 1986-87 study on the behavior and fate of four fragments of a high-seas squid gill net (50-1,000 m long), which were observed closely for 3 days and subsequently tracked by satellite for up to 10 months. The net fragments changed length, shape, heading, and location under the influence of wind and current. The time a net remained open in a fishing con- figuration varied from hours to weeks, depending on its initial length. The nets drifted at an average speed of 15 km/day, but with frequent changes in direction, they remained in the general vicinity of the Hawaiian Archipelago. The complex move- ment of the net fragments means that predicting the drift of marine debris is an oceanographic problem requiring detailed knowledge of surface currents and wind."
        },
        {
            "spans": [
                {
                    "offset": 45279,
                    "length": 915
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 14,
                    "polygon": [
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                }
            ],
            "content": "George H. Balazs, Leader of the Marine Turtle Research Task, presented the paper \"Ecological aspects of marine turtles impacted by ocean debris, a 1989 perspective.\" Available evidence indicates that ingestion of man-made debris floating on the high seas has the greatest potential for adversely impacting sea turtle populations. A major problem in gathering detailed information on this phenomenon is the inability of researchers to locate pelagic habitats used by juvenile turtles of all species. Pelagic habitats used as foraging sites by sea turtles are believed to be frontal systems (con- vergences, rips, drift lines) where buoyant food and debris are drawn together by advection. Interna- tional concern for the impact of buoyant wastes in the ocean is heightened by the fact that many sea turtle populations are endangered and have ex- perienced serious declines from overfishing and other adverse factors."
        },
        {
            "spans": [
                {
                    "offset": 46195,
                    "length": 185
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 14,
                    "polygon": [
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                }
            ],
            "content": "Fishery Biologist John R. Henderson's paper \"Recent entanglements of Hawaiian monk seals in marine debris,\" documented 34 observed incidents of entanglement on Monachus schauinslandi in"
        },
        {
            "spans": [
                {
                    "offset": 46381,
                    "length": 440
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 14,
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                }
            ],
            "content": "1985-88, including 4 known deaths, injuries to 2 seals, and 2 seals that had recent neck scars from injuries. The overall entanglement rate in- creased tenfold, from a low of 0.26 incidents/100 camp days in 1985 to a high of 2.66 inci- dents/100 camp days in 1988. This rise is probably attributable to higher amounts of marine debris on and around the islands where seals haul out. Sixty-nine entanglements have been documented since 1974."
        },
        {
            "spans": [
                {
                    "offset": 46822,
                    "length": 702
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 14,
                    "polygon": [
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                }
            ],
            "content": "For the conference, Fishery Biologist Raymond P. Clarke of the Honolulu Laboratory and Jo-Anne N. Kushima of the State of Hawaii's Division of Aquatic Resources, prepared the poster \"Marine debris and epipelagic fishes.\" Their poster documented two instances of marine debris apparently impacting two epipelagic fishes: 1) a mahimahi, Coryphaena hippurus (total length, 77.5 cm; weight, 2.06 kg including net fragment), with a monofilament nylon net fragment attached to its gills and oper- cular area, and 2) a swordfish, Xiphias gladius (total length, 140 cm; weight, 10 kg), with a rubber band cutting (ca. 3 cm deep) into the musculature forward of its caudal peduncle. (G. Boehlert (808) 943-1221)"
        },
        {
            "spans": [
                {
                    "offset": 47525,
                    "length": 58
                }
            ],
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                }
            ],
            "content": "Biological Specimens Readied for Transfer to Major Museums"
        },
        {
            "spans": [
                {
                    "offset": 47584,
                    "length": 390
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "The specimen and sample storage area of the Honolulu Laboratory underwent a major clean- ing and reorganization, April 17-28, to create additional space for current and future biological samples. A committee, headed by Fishery Biologist John Henderson and composed of Fishery Biologists Paul M. Shiota, Ray F. Sumida and James H. Uchiyama, produced a plan in January for the reorganization."
        },
        {
            "spans": [
                {
                    "offset": 47975,
                    "length": 522
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Many of the staff reorganized storage areas and discarded samples of little value to the scien- tific community, including deteriorated, un- labeled, or easily replaced specimens. Specimens of fish and invertebrates, no longer of use to Honolulu Laboratory scientists but from Pacific areas not often sampled, were desig- nated for transfer to major museums. A list of these samples was then sent to various institu- tions, with a request to indicate whether they wished to include any of the samples in their collections."
        },
        {
            "spans": [
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                    "offset": 48498,
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                }
            ],
            "content": "Collections from the current reorganization were allocated to several institutions, with the guidance of Dr. Bruce B. Collette, Director of the"
        },
        {
            "spans": [
                {
                    "offset": 48642,
                    "length": 2
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            ],
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            ],
            "content": "12"
        },
        {
            "spans": [
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            ],
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            ],
            "content": "NMFS Systematics Laboratory. Specimens had been obtained in previous years by the U.S. Nation- al Museum of Natural History, Washington, D.C., and the Bernice P. Bishop Museum, Honolulu, both identified by the NMFS Systematics Laboratory as the most important repositories for the Honolulu Laboratory's collections. A number of other museums expressed interest but could not actively aid in the transfer of specimens. Robert J. Laven- berg of the Los Angeles County Museum of Natural History (LACM) visited the Honolulu Laboratory on April 4-5 to identify specimens of interest to LACM and arrange for two curatorial assistants to pack them during May 3-10 for shipment to LACM."
        },
        {
            "spans": [
                {
                    "offset": 49324,
                    "length": 551
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "The LACM will catalogue and curate the samples and, for the specimens not needed in Los Angeles, arrange for their transfer to the American Museum of Natural History, California Academy of Sciences, and Museum of Comparative Zoology at Harvard (MCZ). The Honolulu Laboratory's specimens at the LACM will be available for inspection or loan to any qualified scientists needing them for research. Also, Scripps Institution of Oceanography has re- quested that zooplankton samples collected in the 1950's through the 1970's be held for future trans- fer."
        },
        {
            "spans": [
                {
                    "offset": 49876,
                    "length": 447
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 15,
                    "polygon": [
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                }
            ],
            "content": "Unused collections of larval and juvenile fishes are also being donated to LACM, for division be- tween that museum and MCZ. Both institutions have received National Science Foundation grants in recent years to build major larval fish research collections. These grants are a result of the interest in ontogenetic characters useful in fish systematics generated by the Ahlstrom memorial symposium held at the NMFS SWFC La Jolla Laboratory in 1983."
        },
        {
            "spans": [
                {
                    "offset": 50324,
                    "length": 253
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                }
            ],
            "content": "The transfer of the Honolulu Laboratory's col- lections to LACM will make them available to the entire scientific community. The aid provided for the transfer by LACM in funding, supplies, and personnel will make this possible. (B. Mundy (808) 943-1212)"
        },
        {
            "spans": [
                {
                    "offset": 50578,
                    "length": 39
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            ],
            "content": "FISHERIES OCEANOGRAPHY RESEARCH PROGRAM"
        },
        {
            "spans": [
                {
                    "offset": 50618,
                    "length": 42
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            ],
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            ],
            "content": "Boehlert Presents Seamount Paper in Azores"
        },
        {
            "spans": [
                {
                    "offset": 50661,
                    "length": 135
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Laboratory Director George W. Boehlert presented the paper \"Biological processes on seamounts and their role in fisheries productivity\""
        },
        {
            "spans": [
                {
                    "offset": 50797,
                    "length": 300
                }
            ],
            "boundingRegions": [
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            ],
            "content": "at the 9th Week of Fisheries of the Azores, a conference held in Horta, Faial, Azores, March 6-10, 1989. His paper drew considerable inter- est because of the large number of seamounts in the Azorean region and the similarities between Hawaii's and the Azores' fisheries (e.g., tuna, insular fishes)."
        },
        {
            "spans": [
                {
                    "offset": 51098,
                    "length": 517
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            ],
            "boundingRegions": [
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                    "pageNumber": 15,
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                }
            ],
            "content": "This meeting brings together various fisheries expertise from around the world to address problems concerning the Azorean fisheries. About 200 foreign and local participants presented scientific papers as well as economic, marketing, and other industry-related papers, such as one on vessel financing. Discussions at the meeting focused on the Azorean fisheries' problems and needs (e.g., research, data, economics, markets). Azorean fishermen who attended the meeting seemed quite interested in the issues discussed."
        },
        {
            "spans": [
                {
                    "offset": 51616,
                    "length": 845
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "The Azorean fisheries, particularly for tuna, are expanding, although most European Economic Community (EEC) countries are in the process of reducing fishing power and tonnage under guidance of the European Commission, whose representatives attended the meeting. In the next decade, the exclusive economic zones (EEZ's) of all EEC countries will be \"opened up\" to the community. It is perceived that the fisheries of the Azores and Madeira are not fully utilized; therefore, expansion of the fleets is being allowed in these two areas before the EEZ is opened. Between now and 1991, the Azores can increase tonnage by 20% and fishing power by 37%. Also planned is the expansion of the tuna catch -- mainly skipjack tuna, Katsuwonus pelamis, and bigeye tuna, Thunnus obesus -- from 18,000 metric tons (t) to 30,000 t. (G. Boehlert (808) 943-1221)"
        },
        {
            "spans": [
                {
                    "offset": 52462,
                    "length": 31
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            ],
            "content": "PELAGIC RESOURCES INVESTIGATION"
        },
        {
            "spans": [
                {
                    "offset": 52494,
                    "length": 36
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            ],
            "boundingRegions": [
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            ],
            "content": "Research on \"Burnt Tuna\" Progressing"
        },
        {
            "spans": [
                {
                    "offset": 52531,
                    "length": 421
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                }
            ],
            "content": "Research on \"burnt tuna\" is being conducted by Cheryl Watson, a graduate student in the Department of Physiology, John A. Burns School of Medicine, University of Hawaii, utiliz- ing the Honolulu Laboratory's Kewalo Research Facility. \"Burnt tuna\" is a product quality prob- lem affecting large yellowfin tuna, Thunnus al- bacares, and bigeye tuna, T. obesus, intended to be sold for \"sashimi\" (i.e., for raw consumption)."
        },
        {
            "spans": [
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                    "offset": 52953,
                    "length": 2
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            "content": "13"
        },
        {
            "spans": [
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                }
            ],
            "content": "Although perfectly edible when cooked, burnt tuna is considered unsuitable for the sashimi market and therefore commands only a small fraction of the price of top quality fish."
        },
        {
            "spans": [
                {
                    "offset": 53133,
                    "length": 549
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            ],
            "content": "An exact measure of the cost of burnt tuna to the Hawaiian tuna fishing industry is not available, but the total, annual, direct ex-vessel losses are es- timated at $3.0 million. (This figure does not take into account retail losses or potential export markets that remain undeveloped.) The ex-vessel value of yellowfin and bigeye tuna landings in Hawaii was $12 to $20 million in 1987, so the importance of the burnt tuna problem can be easily appreciated. Reliable, cost-effective techniques to prevent or minimize this problem are clearly needed."
        },
        {
            "spans": [
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                    "offset": 53683,
                    "length": 539
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                        4.1456,
                        5.6743,
                        1.1141,
                        5.6743
                    ]
                }
            ],
            "content": "Watson's research is centered on the new hypothesis that burnt tuna is not directly caused by acidity and high muscle temperature that occur during capture, but rather is a result of digestion of specific muscle proteins by calcium-activated proteases (i.e., enzymes that cause protein destruc- tion), which become activated postmortem. This theory was originally delineated by Peter W. Hochachka and Richard W. Brill (\"Autocatalytic pathways to cell death: a new analysis of the tuna burn problem,\" Fish. Physiol. Biochem. 4:81-87, 1987)."
        },
        {
            "spans": [
                {
                    "offset": 54223,
                    "length": 614
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                        1.1332,
                        7.9449
                    ]
                }
            ],
            "content": "Watson has expanded this basic hypothesis to include the theory that adrenaline and noradrenaline, which are hormones that fish produce in response to stress, accelerate the activity of calcium-activated proteases (\"A comprehensive theory on the etiology of burnt tuna,\" Fish. Bull. 86:367-372, 1988). The expanded theory ex- plains why the \"burnt tuna syndrome\" occurs more often in fish caught by handline and rod and reel, and in female fish caught during the summer. It also explains why other measures to reduce the in- cidence of burnt tuna, such as chilling and brain destruction are relatively ineffective."
        },
        {
            "spans": [
                {
                    "offset": 54838,
                    "length": 584
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        10.0626,
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                        10.0677
                    ]
                }
            ],
            "content": "Using an electron microscope, Watson has found that samples taken from burnt tuna showed charac- teristic deterioration in muscle structures known to be specifically attacked by calcium-activated proteases (the Z-disk was selectively removed from the sarcomeres of burnt tuna), confirming the original hypothesis. More recently, biochemical analysis of burnt tuna, conducted by using SDS- PAGE electrophoresis, indicates that a specific protein appears to be attacked by the calcium-ac- tivated proteases. The specific identity of this \"marker protein\" is yet unknown, but immunologi-"
        },
        {
            "spans": [
                {
                    "offset": 55423,
                    "length": 377
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        1.0134,
                        7.2919,
                        2.2802,
                        4.4277,
                        2.2802
                    ]
                }
            ],
            "content": "cal testing (Western blot technique) is being used to determine its identity. More important, since this protein is a reliable indicator of burnt tuna, it may eventually be possible to develop a test that obviates the current practice of quartering tuna suspected of being burnt. This need to cut open the fish to check for burnt tuna devalues the fish even if it is not burnt."
        },
        {
            "spans": [
                {
                    "offset": 55801,
                    "length": 687
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                    ]
                }
            ],
            "content": "Heretofore the burnt tuna syndrome has been recognizable only in wholesale fish markets. Work is now under way to reproduce the syndromes in the laboratory, by using small, isolated muscle samples. Work done in this man- ner to date indicates the proposed theory is correct and that the muscle deterioration in burnt tuna is due to a calcium-based proteolysis. Surprisingly, the biochemical causes of burnt tuna also appear to be the same as those causing damage to the human heart muscle during heart attack and those causing some forms of muscular dystrophy. Work on burnt tuna may therefore have implications to medical science as well as to fishery science. (R. Brill (808) 943-1234)"
        },
        {
            "spans": [
                {
                    "offset": 56489,
                    "length": 45
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        6.4551,
                        5.1054,
                        6.4564,
                        5.636,
                        4.4612,
                        5.6408
                    ]
                }
            ],
            "content": "MARINE MAMMALS AND ENDANGERED SPECIES PROGRAM"
        },
        {
            "spans": [
                {
                    "offset": 56535,
                    "length": 40
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        6.6368,
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                    ]
                }
            ],
            "content": "Hawaiian Monk Seal Births Are Increasing"
        },
        {
            "spans": [
                {
                    "offset": 56576,
                    "length": 274
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
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                        7.1848
                    ]
                }
            ],
            "content": "Since 1983, personnel of the National Marine Fisheries Service have tagged the weaned pups of Hawaiian monk seals, Monachus schauinslan- di, at all breeding locations in the Northwestern Hawaiian Islands, to monitor pup production and survival (Figure 1). The pup production"
        },
        {
            "spans": [
                {
                    "offset": 56851,
                    "length": 3
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
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                        7.4525,
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                    ]
                }
            ],
            "content": "125"
        },
        {
            "spans": [
                {
                    "offset": 56855,
                    "length": 18
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "Fr. Frigate Shoals"
        },
        {
            "spans": [
                {
                    "offset": 56874,
                    "length": 3
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                    ]
                }
            ],
            "content": "100"
        },
        {
            "spans": [
                {
                    "offset": 56878,
                    "length": 14
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "NUMBER OF PUPS"
        },
        {
            "spans": [
                {
                    "offset": 56893,
                    "length": 2
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
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                }
            ],
            "content": "75"
        },
        {
            "spans": [
                {
                    "offset": 56896,
                    "length": 2
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "50"
        },
        {
            "spans": [
                {
                    "offset": 56899,
                    "length": 6
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        8.8245,
                        7.201,
                        8.9201,
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                    ]
                }
            ],
            "content": "Laysan"
        },
        {
            "spans": [
                {
                    "offset": 56906,
                    "length": 16
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "Pearl and Hermes"
        },
        {
            "spans": [
                {
                    "offset": 56923,
                    "length": 2
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "25"
        },
        {
            "spans": [
                {
                    "offset": 56926,
                    "length": 9
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                    ]
                }
            ],
            "content": "Lisianski"
        },
        {
            "spans": [
                {
                    "offset": 56936,
                    "length": 4
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                    ]
                }
            ],
            "content": "Kure"
        },
        {
            "spans": [
                {
                    "offset": 56941,
                    "length": 1
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "0"
        },
        {
            "spans": [
                {
                    "offset": 56943,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "1983"
        },
        {
            "spans": [
                {
                    "offset": 56948,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "1984"
        },
        {
            "spans": [
                {
                    "offset": 56953,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                }
            ],
            "content": "1985"
        },
        {
            "spans": [
                {
                    "offset": 56958,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                    ]
                }
            ],
            "content": "1986"
        },
        {
            "spans": [
                {
                    "offset": 56963,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 16,
                    "polygon": [
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                        9.814,
                        6.9524,
                        9.8953,
                        6.7229,
                        9.8953
                    ]
                }
            ],
            "content": "1987"
        },
        {
            "spans": [
                {
                    "offset": 56968,
                    "length": 4
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        9.8092,
                        7.3636,
                        9.8905,
                        7.1293,
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                    ]
                }
            ],
            "content": "1988"
        },
        {
            "spans": [
                {
                    "offset": 56973,
                    "length": 4
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
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                        5.9913,
                        10.0291
                    ]
                }
            ],
            "content": "YEAR"
        },
        {
            "spans": [
                {
                    "offset": 56978,
                    "length": 2
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 16,
                    "polygon": [
                        4.0978,
                        10.5024,
                        4.2508,
                        10.5024,
                        4.2508,
                        10.6123,
                        4.0978,
                        10.6123
                    ]
                }
            ],
            "content": "14"
        },
        {
            "spans": [
                {
                    "offset": 56981,
                    "length": 641
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        1.0861,
                        1.0298,
                        4.1178,
                        1.0352,
                        4.1141,
                        3.1108,
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                    ]
                }
            ],
            "content": "count includes all tagged pups, known deaths, and pups still nursing at the end of the field season. More than half of all births occur at French Frigate Shoals. Total births have increased over the past 2 years. Total known production was 161-184 pups in 1983-86, 204 pups in 1987, and 223 pups in 1988. The recent overall increase reflects increases in the numbers of pups born at French Frigate Shoals, Laysan Island, and Kure Atoll. The num- bers of pups born at Lisianski Island and Pearl and Hermes Reef show no clear pattern and are less complete because of the low field effort at these two locations. (T. Johanos-Kam (808) 943-1221)"
        },
        {
            "spans": [
                {
                    "offset": 57623,
                    "length": 87
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
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                        3.2828,
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                    ]
                }
            ],
            "content": "Green Turtle Habitats in Kaneohe Bay Documented for Long-Term Monitoring and Assessment"
        },
        {
            "spans": [
                {
                    "offset": 57711,
                    "length": 546
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
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                    ]
                }
            ],
            "content": "Two discrete habitat sites in Kaneohe Bay, Oahu, were recently identified as being intensively used by the green turtle, Chelonia mydas, according to George H. Balazs, Leader of the Marine Turtle Research Task. One site (ca. 0.25 km2 3-7 m deep) is used as a benthic resting area for adult and immature turtles, and its bottom substrate is mainly outcroppings of Porites coral. The other site is a shallow ( m deep), narrow, sandy bottom zone (100 m wide by 1 km long) where turtles forage on a luxuriant meadow of sea grass, Halophila hawaiiana."
        },
        {
            "spans": [
                {
                    "offset": 58258,
                    "length": 437
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        1.0658,
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                    ]
                }
            ],
            "content": "During three daytime study visits to these sites, 15 turtles were hand-captured by researchers using scuba or snorkel gear. All turtles were measured and tagged, and the status of their health was assessed prior to release. No previously tagged turtles were encountered, although existing records show that adults originally tagged at the breeding site of French Frigate Shoals 750 km to the northwest have been resighted in Kaneohe Bay."
        },
        {
            "spans": [
                {
                    "offset": 58696,
                    "length": 748
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        1.0644,
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                        7.6002,
                        4.0951,
                        10.0353,
                        1.0567,
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                    ]
                }
            ],
            "content": "Two problems were identified during the course of this preliminary investigation. Fibropapillomas were found on 8 (57%) of the 15 turtles captured, constituting the highest rate seen thus far anywhere in Hawaii. The sizes of these epithelial growths ranged from 0.5 to 8 cm in diameter or length. Two of the turtles had multiple, extensive growths, which likely were interfering with normal behavior. Studies at other sites in Hawaii have shown that fibropapillomas on green turtles can grow rapidly and reach gross proportions in only 2-3 years. The second problem identified was the displacement of turtles from segments of the Halophila foraging pasture. This is due to tour operators and other vessels anchoring within the zone on a daily basis"
        },
        {
            "spans": [
                {
                    "offset": 59445,
                    "length": 56
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        4.4182,
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                        7.2935,
                        1.0399,
                        7.2935,
                        1.3562,
                        4.4182,
                        1.3562
                    ]
                }
            ],
            "content": "for recreational activities with large groups of people."
        },
        {
            "spans": [
                {
                    "offset": 59502,
                    "length": 384
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
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                        4.4006,
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                    ]
                }
            ],
            "content": "More information will be generated on both of these problems with the implementation of a long-term research and monitoring program. In the immediate future, cooperative work will take place with a veterinary pathologist from the University of Florida; the pathologist will visit Hawaii to biopsy fibropapillomas in search of the elusive etiological agent. (G. Balazs (808) 943- 1221)"
        },
        {
            "spans": [
                {
                    "offset": 59887,
                    "length": 35
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        4.423,
                        3.139,
                        6.4265,
                        3.1438,
                        6.4256,
                        3.494,
                        4.4222,
                        3.4892
                    ]
                }
            ],
            "content": "FISHERY MANAGEMENT RESEARCH PROGRAM"
        },
        {
            "spans": [
                {
                    "offset": 59923,
                    "length": 70
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        4.4183,
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                        7.0017,
                        3.6619,
                        7.0012,
                        3.9537,
                        4.4177,
                        3.9489
                    ]
                }
            ],
            "content": "Preliminary Estimates of Hawaii's Fisheries Landings and Value in 1988"
        },
        {
            "spans": [
                {
                    "offset": 59994,
                    "length": 280
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        4.4039,
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                        4.0639,
                        7.2743,
                        5.0033,
                        4.4039,
                        5.0033
                    ]
                }
            ],
            "content": "Preliminary estimates of Hawaii's commercial fishery were prepared by Samuel G. Pooley, Industry Economist, for inclusion in the NMFS publication, Fisheries of the United States, 1988. The estimates, using the publication's rather un- usual reporting requirements, are as follows:"
        },
        {
            "spans": [
                {
                    "offset": 60275,
                    "length": 13
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        4.4374,
                        5.3531,
                        5.4065,
                        5.3627,
                        5.4054,
                        5.4777,
                        4.4363,
                        5.4681
                    ]
                }
            ],
            "content": "Species group"
        },
        {
            "spans": [
                {
                    "offset": 60289,
                    "length": 16
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        5.854,
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                        5.2343,
                        6.4749,
                        5.4681,
                        5.8559,
                        5.4729
                    ]
                }
            ],
            "content": "Pounds (1,000's)"
        },
        {
            "spans": [
                {
                    "offset": 60306,
                    "length": 13
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
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                        5.4633,
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                    ]
                }
            ],
            "content": "$US (1,000's)"
        },
        {
            "spans": [
                {
                    "offset": 60320,
                    "length": 6
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        4.4326,
                        5.7221,
                        4.8927,
                        5.7221,
                        4.8927,
                        5.818,
                        4.4326,
                        5.818
                    ]
                }
            ],
            "content": "Marlin"
        },
        {
            "spans": [
                {
                    "offset": 60327,
                    "length": 5
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 17,
                    "polygon": [
                        6.0571,
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                        6.4213,
                        5.8275,
                        6.0571,
                        5.8275
                    ]
                }
            ],
            "content": "2,757"
        },
        {
            "spans": [
                {
                    "offset": 60333,
                    "length": 5
                }
            ],
            "boundingRegions": [
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            "content": "2,853"
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            "content": "Bottom fish"
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            "content": "1,675"
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            "content": "2,647"
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            "content": "Tunas"
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            "content": "12,705"
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            "content": "23,754"
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            "content": "Shellfish"
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            "content": "1,531"
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            "content": "5,508"
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                    "length": 10
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            ],
            "content": "Other fish"
        },
        {
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                    "offset": 60416,
                    "length": 5
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            ],
            "content": "2,463"
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            "content": "4,987"
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            "content": "Total"
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        {
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                    "length": 6
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            ],
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            "content": "21,131"
        },
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            ],
            "content": "39,749"
        },
        {
            "spans": [
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                    "offset": 60448,
                    "length": 305
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            ],
            "content": "These figures, which show a 30% increase over 1987, should be used only as early indica- tions of Hawaii's fishery status in 1988. Revised figures will be included in the annual report modules prepared for the fishery management plans for the Western Pacific Regional Fishery Management Council (Council)."
        },
        {
            "spans": [
                {
                    "offset": 60754,
                    "length": 89
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Preliminary Status Report on the Bottom Fish Fishery in the Northwestern Hawaiian Islands"
        },
        {
            "spans": [
                {
                    "offset": 60844,
                    "length": 399
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "A brief status report on Hawaii's bottom fish fishery was prepared for the Council's April meeting in American Samoa. The report, which is based on preliminary data from NMFS market sampling, shows that bottom fish landings in Hawaii have remained about the same for the past 3 years. However, landings from the Northwestern Hawaiian Islands (NWHI) have fallen by 34% since 1986, while landings from"
        },
        {
            "spans": [
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                    "offset": 61244,
                    "length": 2
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            ],
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                }
            ],
            "content": "15"
        },
        {
            "spans": [
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                    "offset": 61247,
                    "length": 155
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            ],
            "boundingRegions": [
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                    "pageNumber": 18,
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                }
            ],
            "content": "the main Hawaiian islands have increased by 89%. Only 13 vessels were active in the NWHI bottom fish fishery in 1988. Activity at year's end was quite low."
        },
        {
            "spans": [
                {
                    "offset": 61403,
                    "length": 63
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Statistician Shares Data on Foreign Longline Fishery in Pacific"
        },
        {
            "spans": [
                {
                    "offset": 61467,
                    "length": 546
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Peter Williams, Assistant Fisheries Statistician of the Tuna and Billfish Assessment Programme of the South Pacific Commission (SPC), visited the Honolulu Laboratory in March 1989 to share data on the foreign longline tuna fishery in the Pacific. Williams prepared a dBASE III menu program to integrate NMFS and SPC tuna longline logbook data while preserving confidentiality of the NMFS data. The program searches for corresponding ves- sels, checks overlapping data by date of set, and writes the location at the 10° square level of ac- curacy."
        },
        {
            "spans": [
                {
                    "offset": 62014,
                    "length": 107
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Small Boat Fishery Economics for American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands"
        },
        {
            "spans": [
                {
                    "offset": 62122,
                    "length": 550
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Laurel Kasaoka, Cooperative Researcher with the Council, completed compilation of small boat economic data from surveys conducted last year in American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands. Data on basic vessel operating patterns, economic costs, and revenues are summarized in her report \"Summary of Small Boat Economic Surveys from American Samoa, Guam, and the Northern Mariana Islands\" (Administrative Report H-89-4C) and will be in- tegrated into a descriptive report with joint authors from each of the three areas."
        },
        {
            "spans": [
                {
                    "offset": 62673,
                    "length": 30
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Precious Coral Fishery Revives"
        },
        {
            "spans": [
                {
                    "offset": 62704,
                    "length": 813
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "The Fishery Management Research Program received its first log under the Precious Coral Fishery Management Plan (FMP). The log reports the harvest and number of fishing days for one trip taken under the existing quotas of the FMP. This trip represented the second taken by a domestic vessel in the western Pacific precious coral \"fishery,\" but the previous trip was taken to an area of the fishery conservation zone that, prior to the recent FMP amendment, required neither a permit nor logs. Because only one vessel has participated in the fishery, no data summaries can be released. Recently, two vessels requested experimental per- mits to fish in areas and in quantities otherwise precluded by the FMP. Both applications are pend- ing action by the Director of the Southwest Region. (S. Pooley (808) 943-1216)"
        },
        {
            "spans": [
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                    "offset": 63518,
                    "length": 37
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            ],
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            ],
            "content": "PACIFIC FISHERIES ENVIRONMENTAL GROUP"
        },
        {
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                    "offset": 63556,
                    "length": 20
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Monterey, California"
        },
        {
            "spans": [
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                    "offset": 63577,
                    "length": 30
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                }
            ],
            "content": "FISHERY/ENVIRONMENTAL LINKAGES"
        },
        {
            "spans": [
                {
                    "offset": 63608,
                    "length": 47
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            ],
            "boundingRegions": [
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            ],
            "content": "Chapters Prepared for Peruvian Upwelling Volume"
        },
        {
            "spans": [
                {
                    "offset": 63656,
                    "length": 587
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 18,
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                }
            ],
            "content": "Application of the comparative method of science is one promising approach toward developing improved insight into the interac- tions of fish population dynamics and natural environmental variability. For a number of years PFEG scientists have been developing a framework of comparative climatology of neritic habitats from which to draw generalized inferen- ces as to stock - recruitment issues, identification of trends in fishery productivity, interspecies in- teractions, effects of habitat alterations or climatic change, etc. This has involved certain international collaborations."
        },
        {
            "spans": [
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                    "offset": 64244,
                    "length": 632
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "For the past several years, one aspect of PFEG activity in this direction has been participation in a multilateral study of the population dynamics and ecosystem characteristics of the Peruvian anchoveta. The co-sponsors of the study are the Instituto del Mar del Peru (IMARPE); the Federal Republic of Germany's Deutsche Gesellschaft fr Technische Zusammenarbeit (GTZ), and the In- ternational Center for Living Aquatic Resources Management (ICLARM). PFEG scientists prepared three chapters for an initial volume, \"The Peruvian Anchoveta and Its Upwelling Ecosystem: Three Decades of Change,\" which was published by ICLARM in 1987."
        },
        {
            "spans": [
                {
                    "offset": 64877,
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            ],
            "boundingRegions": [
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            ],
            "content": "Within the past few months, PFEG scientists have prepared four new chapters to be included in a second volume, to be entitled \"The Peruvian Upwelling Ecosystem: Dynamics and Interac- tions.\" These have been transmitted to ICLARM and are now in press. The titles, authors names, and abstracts are listed below."
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            ],
            "content": "Andrew Bakun. Mechanisms for Density-De- pendent Growth of Anchoveta: Alternatives to Impact on the Regional-Scale Food Supply."
        },
        {
            "spans": [
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                    "offset": 65315,
                    "length": 2
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            ],
            "content": "16"
        },
        {
            "spans": [
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                    "offset": 65318,
                    "length": 480
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            "boundingRegions": [
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            ],
            "content": "Two alternate classes of mechanisms that could account for evidence of density-dependent growth are introduced: 1) effects of potential linkages of school size with population size, and 2) effects of size-dependent predation. These may lead to dif- ferent interpretations with respect to resilience to exploitation, carrying capacity of the habitat, etc., from those implied by the more commonly cited class of mechanisms which involve impact of the population on its food supply."
        },
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            "spans": [
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            ],
            "content": "Andrew Bakun and Roy Mendelssohn. Alongshore Wind Stress 1953-84: Correction, Reconciliation, and Update through 1986."
        },
        {
            "spans": [
                {
                    "offset": 65918,
                    "length": 369
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            ],
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            ],
            "content": "Corrected values are presented for the monthly series of alongshore stress presented in the previous volume of this series. The series is updated through 1986. The faulty \"old\" and corrected \"new\" series are compared and found to have very similar properties. It is concluded that studies that may have been based on the \"old\" series will not be significantly in error."
        },
        {
            "spans": [
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                    "offset": 66288,
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            ],
            "content": "Roy Mendelssohn. A Reanalysis of Estimates of Recruitment of the Peruvian Anchoveta in Relation- ship to the Other Population Parameters and to the Surrounding Environment."
        },
        {
            "spans": [
                {
                    "offset": 66461,
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                }
            ],
            "content": "The new recruitment estimates of the Peruvian anchoveta are analyzed with respect to other population parameters and the surrounding ocean. environment. The inshore and offshore environ- mental variables are shown to differ in their dynamics, and the inshore series vary north to south. For the inshore locations, it is not possible to resolve whether a wind related effect is due to transport or turbulence. The new recruitment es- timates differ significantly from the old estimates, partly due to mackerel consumption acting as a surrogate for SST. Models using the monthly data were not possible due to correlations in the popula- tions that could be spurious. On a yearly basis, a nonlinear additive model using parent biomass and transport at Trujillo explained 75% of the variance in the recruitment estimates."
        },
        {
            "spans": [
                {
                    "offset": 67279,
                    "length": 100
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            ],
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                }
            ],
            "content": "Richard H. Parrish. The South Pacific Oceanic Horse Mackerel (Trachurus picturatus murphyi) Fishery."
        },
        {
            "spans": [
                {
                    "offset": 67380,
                    "length": 248
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            ],
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                        4.0781,
                        9.9844,
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                }
            ],
            "content": "The horse mackerel fishery of the South Pacific currently dominates the world's catch of horse mackerels. The rapid increases in catches of horse mackerel by South American purse seine fleets and the distant water USSR trawl fleet are discussed and"
        },
        {
            "spans": [
                {
                    "offset": 67629,
                    "length": 103
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                }
            ],
            "content": "the geographical expansion of the trawl fishery is shown utilizing ship surface weather observa- tions."
        },
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            "spans": [
                {
                    "offset": 67733,
                    "length": 647
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                }
            ],
            "content": "Due to disagreement on the taxonomic iden- tity of the species which supports the fishery a review of the world's Trachurus was made. The results of this review show that neither of the eastern Pacific forms of Trachurus merits full species rank. It is concluded that both are sub- species of the oceanic horse mackerel (Trachurus picturatus); T. p. symmetricus in the north- eastern Pacific and T. p. murphyi in the southeastern Pacific. It is further suggested that it is likely that the range of T. p. murphyi extends clear across the southern hemisphere west wind drift region (i.e. from the south Atlantic to Chile). (A. Bakun (408) 646-3311)"
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            ],
            "content": "PELAGIC FISHERIES RESOURCES DIVISION"
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            ],
            "content": "La Jolla, California"
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            ],
            "content": "FISHERY MONITORING AND EVALUATION PROGRAM"
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            "content": "Statistics Reviewed on the U.S. Canned Tuna Industry for 1988"
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            "content": "Statistics describing the U.S. canned tuna in- dustry for 1988 were recently compiled by Wes Parks, SWFC; Pat Donley, SWR; and Sam Her- rick, SWFC, and presented as a feature article in the May issue of the Region/Center Tuna Newsletter. Data shows that the number of ac- tive U.S. purse seiners declined to 74 in 1988, continuing the trend begun in 1984 (Figure 1)."
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            "content": "30 -"
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            "content": "YEAR"
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            "content": "Figure 1. Number of active (at least one trip during the year) U.S. purse seiners, 1982-1988."
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            "content": "In 1988, 57% of the vessels operated in the eastern Pacific and 43% operated in the western Pacific."
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            "content": "Total receipts of raw tuna by U.S. canneries declined slightly in 1988, but were still well above the recent low of 450,000 short tons of 1985 (Fig- ure 2). Total receipts were 510,471 short tons with imports contributing slightly more than domestic deliveries. Skipjack tuna was the principal species in both domestically-caught and imported receipts. Major foreign suppliers were Taiwan, South Korea, and Ghana. The western Pacific was the major source of albacore and skipjack tuna whereas the eastern Pacific contributed the greatest quantity of yellowfin tuna."
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            "content": "RECEIPTS (1,000 short tons)"
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            "content": "400"
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            "content": "300"
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            "content": "100 -"
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            "content": "1982"
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            "content": "Figure 2. U.S. cannery receipts of raw tuna, 1982- 1988."
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            "content": "The Pacific International Billfish Angler Sur- vey, which started in 1969, annually collects information on billfish angler catch rates in the Pacific and Indian Oceans. This is the 19th year of the Survey. Results of the previous year's Survey, determined from the responses from billfish anglers, are updated in each issue of the Billfish Newsletter."
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            "content": "anglers fishing in the Gulf of Mexico, Caribbean Sea or Atlantic Ocean."
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            "content": "Anglers responding to the Survey reported catching 6,625 billfish in the Pacific Ocean and 364 billfish in the Indian Ocean, for a total of 6,989 billfish. Species breakdown for the Pacific Ocean catch was 997 blue marlin, 368 black marlin, 3,460 striped marlin, and 1,800 sailfish. For the Indian Ocean, it was 17 blue marlin, 8 black marlin, 26 striped marlin, and 313 sailfish. The catch rate for"
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            "content": "the Pacific Ocean was 0.48 fish per day or 2.1 days per fish. For the Indian Ocean, the rate was 0.51 fish per day or 1.94 days per fish. These catch rates are lower than those reported in 1986, 0.51 for the Pacific, and 0.66 for the Indian Ocean."
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            "content": "The Pacific Ocean angler catch rate for 1987 is 13% below that determined for the 1969-1972 period (0.55 fish per day)."
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            "content": "203"
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            "content": "188"
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            "content": "· ACAPULCO"
        },
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                    "length": 2
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            "content": "272"
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            "content": "64"
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            "content": "190"
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            "content": "149"
        },
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                    "length": 3
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            ],
            "content": "144"
        },
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            "spans": [
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                    "offset": 77312,
                    "length": 2
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                }
            ],
            "content": "90"
        },
        {
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                    "offset": 77315,
                    "length": 3
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            ],
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                }
            ],
            "content": "455"
        },
        {
            "spans": [
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                    "offset": 77319,
                    "length": 3
                }
            ],
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            ],
            "content": "110"
        },
        {
            "spans": [
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                    "length": 5
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            ],
            "content": "1,891"
        },
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            "spans": [
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                    "offset": 77329,
                    "length": 3
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                }
            ],
            "content": "0.4"
        },
        {
            "spans": [
                {
                    "offset": 77333,
                    "length": 2
                }
            ],
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            ],
            "content": "99"
        },
        {
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                    "offset": 77336,
                    "length": 12
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            ],
            "content": "128 MAZATLAN"
        },
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                    "offset": 77349,
                    "length": 23
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            ],
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            ],
            "content": "BAJA CALIFORNIA, MEXICO"
        },
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                    "length": 3
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            ],
            "content": "0.2"
        },
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                    "length": 5
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            ],
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                }
            ],
            "content": "2,805"
        },
        {
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                    "offset": 77383,
                    "length": 5
                }
            ],
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                }
            ],
            "content": "255-2"
        },
        {
            "spans": [
                {
                    "offset": 77389,
                    "length": 3
                }
            ],
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                }
            ],
            "content": "147"
        },
        {
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                    "length": 3
                }
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            ],
            "content": "145"
        },
        {
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                }
            ],
            "content": "39 DUBAI, UAE"
        },
        {
            "spans": [
                {
                    "offset": 77411,
                    "length": 2
                }
            ],
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                }
            ],
            "content": "54"
        },
        {
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                    "offset": 77414,
                    "length": 2
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                }
            ],
            "content": "78"
        },
        {
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                    "offset": 77417,
                    "length": 3
                }
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                }
            ],
            "content": "418"
        },
        {
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                    "offset": 77421,
                    "length": 3
                }
            ],
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                }
            ],
            "content": "220"
        },
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                    "offset": 77425,
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                }
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                }
            ],
            "content": "246"
        },
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                    "offset": 77429,
                    "length": 10
                }
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                }
            ],
            "content": "COSTA RICA"
        },
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                    "length": 2
                }
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            ],
            "content": "40"
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                    "offset": 77443,
                    "length": 2
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                }
            ],
            "content": "78"
        },
        {
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                    "offset": 77446,
                    "length": 4
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                }
            ],
            "content": "6199"
        },
        {
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                    "length": 4
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            ],
            "content": "BAJA"
        },
        {
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                {
                    "offset": 77456,
                    "length": 4
                }
            ],
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            ],
            "content": "1987"
        },
        {
            "spans": [
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                    "offset": 77461,
                    "length": 70
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            ],
            "content": "SM- Striped Marlin; BKLM- Black Marlin: BLM- Blue Marlin; SF- Sailfish"
        },
        {
            "spans": [
                {
                    "offset": 77532,
                    "length": 377
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            ],
            "content": "billfish reported caught, CPUE in terms of fish/day and days/fish, for locations having over 100 angler days reported, major species reported for area, and number of angler days and catch for areas reporting less than 100 angler days. Information on 1986 data is given in parenthesis (-) for comparison, for areas having over 100 anger days reported. (J. Squire, FTS 893- 7072)"
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                        10.556,
                        4.0881,
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                }
            ],
            "content": "20"
        },
        {
            "spans": [
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                    "offset": 77913,
                    "length": 3
                }
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                }
            ],
            "content": "0.5"
        },
        {
            "spans": [
                {
                    "offset": 77917,
                    "length": 5
                }
            ],
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                }
            ],
            "content": "(284)"
        },
        {
            "spans": [
                {
                    "offset": 77923,
                    "length": 5
                }
            ],
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                }
            ],
            "content": "(588)"
        },
        {
            "spans": [
                {
                    "offset": 77929,
                    "length": 6
                }
            ],
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                        6.875,
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                }
            ],
            "content": "(1.06)"
        },
        {
            "spans": [
                {
                    "offset": 77936,
                    "length": 5
                }
            ],
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                }
            ],
            "content": "(0.9)"
        },
        {
            "spans": [
                {
                    "offset": 77942,
                    "length": 7
                }
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                }
            ],
            "content": "(1,193)"
        },
        {
            "spans": [
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                    "offset": 77950,
                    "length": 7
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                }
            ],
            "content": "(1,268)"
        },
        {
            "spans": [
                {
                    "offset": 77958,
                    "length": 5
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                }
            ],
            "content": "(137)"
        },
        {
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                {
                    "offset": 77964,
                    "length": 7
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            "content": "· KENYA"
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                }
            ],
            "content": "MULTISPECIES DATA COLLECTION AND EVALUATION PROGRAM"
        },
        {
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                {
                    "offset": 78024,
                    "length": 35
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            ],
            "content": "Pacific Albacore Data Bases Updated"
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                    "offset": 78060,
                    "length": 503
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                        3.5691
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                }
            ],
            "content": "Anthony Majors, Fishery Biologist and Christina Perrin, Computer Programmer, have finished up- dating the Pacific albacore data bases with data from the 1988 southern and northern fisheries. Data are routinely collected for the northern fishery by port samplers in California, Washington and Oregon. Data for the southern fishery are collected by Gordon Yamasaki, Fishery Biologist, in American Samoa and by a sampler in Tahiti. Data are also submitted directly, from both fisheries, by vessel captains."
        },
        {
            "spans": [
                {
                    "offset": 78564,
                    "length": 377
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                }
            ],
            "content": "Data for the northern fishery consists of 268 logbooks, 168 vessel characteristics, and 248 length-frequency samples totaling over 21,000 fish. Preliminary summaries of these data show that the average sizes of fish sampled have decreased from 14.9 lbs in 1987 to 12.4 lbs in 1988 and catch rates in fish-per-standard-days fishing have increased from 70 in 1987 to 117 in 1988."
        },
        {
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            ],
            "content": "Other than two experimental years of fishing in 1986 and 1987, 1988 was the first year of substan- tial U.S. participation in the south Pacific albacore fishery. Data for the austral fishery consist of 15 logbooks and 58 length-frequency samples of over 4,000 fish. Preliminary summaries show that the average sizes of fish sampled have decreased from 17 lbs in 1987 to 15 lbs in 1988 and catch rates, in fish-per-standard-days fishing, decreased from 316 in 1987 to 242 in 1988."
        },
        {
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                }
            ],
            "content": "The data for both fisheries are being summarized by Majors and Perrin as a Center Administrative Report. (A. Majors, FTS 893- 7077)"
        },
        {
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            ],
            "content": "Seychelles Purse Seine Fishery Data"
        },
        {
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                    "offset": 79590,
                    "length": 310
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            "boundingRegions": [
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            ],
            "content": "Al Coan, Mathematical Statistician, reports that data for purse seiners fishing in the area around the Seychelles for the last quarter of 1988, have been received from the Seychelles Fishing Authority and added to Center data bases. The data bases are available on PC diskettes and are in LOTUS spread- sheets."
        },
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                }
            ],
            "content": "The 1988 fishing season was dominated by ves- sels from France (20 vessels) and Spain (18 ves- sels). Also participating in the fishery were vessels from the USSR (4), Mauritius (3), Panama (1), Japan (1) and India (1). Catches of yellowfin and"
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            ],
            "content": "skipjack tunas in 1988 reached a record high of 213,000 mt, increasing 32% over catches in 1987 (Figure 8). The percentage of skipjack and yellowfin tuna in the catch was 53% and 47% respectively and returned to levels recorded in the period 1981-1985. Yellowfin tuna catches showed the highest percent increase, 64%, over 1987 yellowfin catches, whereas skipjack catches only increased 13%."
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            "content": "220"
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            "content": "TOTAL"
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            "content": "CATCH (MT)"
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            "content": "SKIPJACK"
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            "content": "1988"
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            "content": "Figure 8: Purse seine catches of yellowfin and skipjack tunas in the western Indian Ocean."
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            "content": "METRIC TONS PER DAY FISHED"
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            "content": "12"
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                    "length": 8
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            "content": "SKIPJACK"
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        {
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                    "offset": 80842,
                    "length": 2
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            "content": "11"
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        {
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            "content": "10"
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        {
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                {
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                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "9"
        },
        {
            "spans": [
                {
                    "offset": 80850,
                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "8"
        },
        {
            "spans": [
                {
                    "offset": 80852,
                    "length": 9
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "YELLOWFIN"
        },
        {
            "spans": [
                {
                    "offset": 80862,
                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "7"
        },
        {
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                {
                    "offset": 80864,
                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "6"
        },
        {
            "spans": [
                {
                    "offset": 80866,
                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "5"
        },
        {
            "spans": [
                {
                    "offset": 80868,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "polygon": [
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                }
            ],
            "content": "1983"
        },
        {
            "spans": [
                {
                    "offset": 80873,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 23,
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                }
            ],
            "content": "1984"
        },
        {
            "spans": [
                {
                    "offset": 80878,
                    "length": 4
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 23,
                    "polygon": [
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                }
            ],
            "content": "1985"
        },
        {
            "spans": [
                {
                    "offset": 80883,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 23,
                    "polygon": [
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                        6.8828,
                        6.2799,
                        6.9402,
                        6.1363,
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                    ]
                }
            ],
            "content": "1986"
        },
        {
            "spans": [
                {
                    "offset": 80888,
                    "length": 4
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 23,
                    "polygon": [
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                }
            ],
            "content": "1987"
        },
        {
            "spans": [
                {
                    "offset": 80893,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 23,
                    "polygon": [
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                        7.1367,
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                }
            ],
            "content": "1989"
        },
        {
            "spans": [
                {
                    "offset": 80898,
                    "length": 4
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 23,
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                }
            ],
            "content": "YEAR"
        },
        {
            "spans": [
                {
                    "offset": 80903,
                    "length": 93
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 23,
                    "polygon": [
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                }
            ],
            "content": "Figure 9: Purse seine catch rates in metric tons per day fished for the western Indian Ocean."
        },
        {
            "spans": [
                {
                    "offset": 80997,
                    "length": 353
                }
            ],
            "boundingRegions": [
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                    ]
                }
            ],
            "content": "Catch rates increased from approximately 18 mt/day fished in 1987 to 22 mt/day fished in 1988 (Figure 9). Yellowfin tuna showed the greatest increase in catch rate from 7 mt/day fished in 1987 to over 10 mt/day fished in 1988. Catch rates in October of 35 mt/day fished were the highest ever recorded in the western Indian Ocean. (A. Coan, FTS 893-7079)"
        },
        {
            "spans": [
                {
                    "offset": 81351,
                    "length": 31
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Tuna/Dolphin Data Bases Updated"
        },
        {
            "spans": [
                {
                    "offset": 81383,
                    "length": 182
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 23,
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                    ]
                }
            ],
            "content": "Data collected in 1988 by NMFS technicians (observers) aboard U.S. tuna purse seiners fish- ing in the eastern tropical Pacific Ocean have been edited by Biological Technicians Randy"
        },
        {
            "spans": [
                {
                    "offset": 81566,
                    "length": 2
                }
            ],
            "boundingRegions": [
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                    "polygon": [
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                    ]
                }
            ],
            "content": "21"
        },
        {
            "spans": [
                {
                    "offset": 81569,
                    "length": 260
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 24,
                    "polygon": [
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                    ]
                }
            ],
            "content": "Rasmussen and Mike Trianni and placed into the tuna/dolphin database. This database contains in- formation used to investigate the distribution, abundance, mortality and life history of the dolphin stocks involved in the eastern Pacific yellowfin tuna fishery."
        },
        {
            "spans": [
                {
                    "offset": 81830,
                    "length": 410
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            ],
            "boundingRegions": [
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                    ]
                }
            ],
            "content": "In 1988, NMFS observers were on board for 31 of the 60 U.S. fishing trips and observed a total of 847 sets on dolphins. Observers counted a total of 3,373 dolphins killed in these sets for a dolphin kill per set rate of 4.00 animals and a kill per ton of tuna rate of 0.23. These rates are slightly higher than those observed in 1987 of 3.00 animals per set and 0.18 animals per ton. (A. Jackson, FTS 893-7048)"
        },
        {
            "spans": [
                {
                    "offset": 82241,
                    "length": 18
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            ],
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                }
            ],
            "content": "TIBURON LABORATORY"
        },
        {
            "spans": [
                {
                    "offset": 82260,
                    "length": 19
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Tiburon, California"
        },
        {
            "spans": [
                {
                    "offset": 82280,
                    "length": 34
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "GROUNDFISH ANALYSIS INVESTIGATIONS"
        },
        {
            "spans": [
                {
                    "offset": 82315,
                    "length": 100
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            ],
            "boundingRegions": [
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                    "pageNumber": 24,
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                }
            ],
            "content": "Covariation of Daily Growth and Birthdate Distributions of Four Juvenile Rockfish (Sebastes) Species"
        },
        {
            "spans": [
                {
                    "offset": 82416,
                    "length": 887
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Surveys of pelagic juvenile rockfish (Sebastes sp.) inhabiting the coastal waters off central California have been conducted since 1983 by the Groundfish Analysis Investigation. Midwater trawls have been deployed at night along transects between Cypress Pt. and Pt. Reyes aboard the NOAA Ship David Starr Jordan in late spring each year. One aspect of this research has been to determine the daily age and growth of juvenile rockfish by counting the increments on their otoliths. It is thought that growth during early life history plays an important role in determining sur- vival and year class strength. The following sum- marizes some results concerning the daily growth and birthdate distributions of those species com- pleted thus far, i.e. shortbelly rockfish (Sebastes jordani), bocaccio (S. paucispinis), yellowtail rock- fish (S. flavidus), and widow rockfish (S. en- tomelas)."
        },
        {
            "spans": [
                {
                    "offset": 83304,
                    "length": 279
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "For comparative purposes, linear regressions were used to describe growth, although in some cases non-linear models such as the Gompertz equation fit the data slightly better. Growth rates have been observed to covary both among species and years. For example, bocaccio grow more"
        },
        {
            "spans": [
                {
                    "offset": 83584,
                    "length": 577
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 24,
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                }
            ],
            "content": "rapidly than shortbelly rockfish in a given year, whereas 1987 was generally a better year for growth than was 1986. To develop a stand- ardized measure of annual growth conditions, length was estimated at a standard age for each of the four species in each year (Figure 1). The standard age selected for each species depended on the range of ages encountered among years. Note the covariation in length- at-age among the four species. It would appear that environmen- tal conditions affecting growth in any given year are experienced similarly by all the species studied here."
        },
        {
            "spans": [
                {
                    "offset": 84162,
                    "length": 4
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            ],
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                }
            ],
            "content": "60.0"
        },
        {
            "spans": [
                {
                    "offset": 84167,
                    "length": 31
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Standardized Length at Age (mm)"
        },
        {
            "spans": [
                {
                    "offset": 84199,
                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "A"
        },
        {
            "spans": [
                {
                    "offset": 84201,
                    "length": 5
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            ],
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                }
            ],
            "content": "50.0-"
        },
        {
            "spans": [
                {
                    "offset": 84207,
                    "length": 1
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "8"
        },
        {
            "spans": [
                {
                    "offset": 84209,
                    "length": 3
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            "boundingRegions": [
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                }
            ],
            "content": "000"
        },
        {
            "spans": [
                {
                    "offset": 84213,
                    "length": 6
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            ],
            "boundingRegions": [
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                    "polygon": [
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                }
            ],
            "content": "40.0 -"
        },
        {
            "spans": [
                {
                    "offset": 84220,
                    "length": 1
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            "boundingRegions": [
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                    "polygon": [
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                }
            ],
            "content": "0"
        },
        {
            "spans": [
                {
                    "offset": 84222,
                    "length": 1
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "O"
        },
        {
            "spans": [
                {
                    "offset": 84224,
                    "length": 5
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                }
            ],
            "content": "30.0-"
        },
        {
            "spans": [
                {
                    "offset": 84230,
                    "length": 21
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                }
            ],
            "content": "O-O Shortbelly (75 d)"
        },
        {
            "spans": [
                {
                    "offset": 84252,
                    "length": 18
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            ],
            "boundingRegions": [
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            ],
            "content": "Yellowtail (107 d)"
        },
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            "spans": [
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                    "offset": 84271,
                    "length": 20
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                }
            ],
            "content": "4-A Bocaccio (100 d)"
        },
        {
            "spans": [
                {
                    "offset": 84292,
                    "length": 17
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                }
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            "content": "V-V Widow (100 d)"
        },
        {
            "spans": [
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                    "offset": 84310,
                    "length": 4
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            "content": "20.0"
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                    "length": 2
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            "content": "Year"
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            ],
            "content": "Figure 1. Standardized length at age data. Num- bers in parentheses indicate age used to deter- mine lengths."
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            "content": "Birthdate distributions of fish surviving from mid-winter parturition to the time of late spring sampling were estimated by: 1) regressing age on length for each species-year combination, 2) estimating individual ages from lengths of all the fish sampled (not just those aged), 3) calculating the birthdate of each fish by subtracting the estimated age from the Julian date of capture, and 4) aggregating birthdates into a composite frequency distribution. Here only mean birthdates bracketed by the maximum and min- imum birthdates are presented (Figure 2). Al- though not shown, birthdate distributions were generally unimodal when samples were suffi- ciently large, except in 1987 when each species exhibited extended parturition. Like the results concerning length-at-age, the timing of parturi- tion of survivors covaried among species and years."
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            ],
            "content": "This research is ongoing as additional species are processed and cruises conducted. We are currently studying the relationship between growth and dates of successful parturition with oceanographic conditions in an attempt to"
        },
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            ],
            "content": "determine the factors contributing to year class strength."
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            ],
            "content": "Shortbelly Rockfish"
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            "content": "Maan Jullian Birthdate"
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            "content": "I"
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            "content": "Bocaccio"
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            "content": "Mean Julian Birthdate"
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            "content": "50."
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            "content": "Yellowtail Rockfish"
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            "content": "1984"
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            "content": "1985"
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            "content": "1986"
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            "content": "1987"
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            "content": "1988"
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            "content": "1989"
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            "content": "Year"
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            "content": "Figure 2. Mean birthdate distributions bracketed by ranges."
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            "content": "(D. Woodbury 556-0565)"
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            "content": "GROUNDFISH COMMUNITIES INVESTIGATIONS"
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            "content": "Juvenile Rockfish Found to Respond Alike to Factors Affecting Growth"
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            "content": "Survival and mortality rates have been calcu- lated for first-year juvenile blue rockfish, Sebas- tes mystinus, by Fishery Biologists Peter Adams and Dan Howard of the Groundfish Com- munities Investigation. The work is based on data from nearshore underwater census counts on the Mendocino Coast, which are part of the Tiburon Laboratory's rockfish recruitment studies."
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            "content": "Jun"
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            "content": "Aug"
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            "content": "Oct"
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            "content": "Dec Feb"
        },
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            "content": "Apr"
        },
        {
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            ],
            "content": "Jun Aug Oct Dec"
        },
        {
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                    "offset": 88123,
                    "length": 3
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            "content": "Feb"
        },
        {
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            ],
            "content": "Figure 3. Mortality estimates for juvenile blue rockfish (Sebastes mystinus) from four locations by year."
        },
        {
            "spans": [
                {
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            ],
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                }
            ],
            "content": "Rates of annual (12-month) instantaneous mor- tality projected from these data range from 1.51 to 0.67, which can be compared to the generally accepted adult natural mortality rate of around 0.25."
        },
        {
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            ],
            "content": "Possible sources of error include net migration into the area, which would reduce the mortality estimates, and net migration out of the area, which would increase the mortality estimates. Finer-scale sampling planned for the coming year should refine these estimates. (P. Adams, FTS 556-0568)"
        },
        {
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            ],
            "content": "Groundfish Physiological Ecology Investigation to Assess Condition of Juvenile Yellowtail Rockfish"
        },
        {
            "spans": [
                {
                    "offset": 88822,
                    "length": 299
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            ],
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                }
            ],
            "content": "Since March 1985, the Physiological Ecology Investigation has been studying the reproductive biology of yellowtail rockfish, Sebastes flavidus, from Cordell Bank off Bodega Bay, California. An objective of the study is to identify variables within the female that relate to reproductive success. Ap-"
        },
        {
            "spans": [
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                    "offset": 89122,
                    "length": 1321
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            ],
            "content": "proximately 300 adult females have been analyzed for body condition, parasite burden, nutritional state, ovarian maturation, oocyte develop- ment, fecundity, etc. Statistical relationships between and among maternal and ovarian variables have been identified; however, the link be- tween these variables and the viability Ap of progeny has not been established. Ideally, evaluation of the physiological condition of recently released larvae would provide the optimum data to establish relationships with maternal factors, but locating and identifying offspring during this early life stage has not been achieved. Consequent- ly, assessing physiological condition of Apr juveniles (approximately 4-5 months post-parturition), a stage that can be collected and identified, has become the alternative. Despite the influences of environmental variables during the first few months at sea, it is reasonable that healthier larvae at the time of release will have a greater probability Apr of survival and better physiological condition at the juvenile stage. Thus- ly, evaluating important environmen- tal variables (e.g., temperature, food abundance) during the free-swimming larvae-to-juvenile progression and as- sessing juvenile condition should provide data upon which to relate maternal variables to reproductive success."
        },
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                }
            ],
            "content": "As part of the Rockfish Recruitment Assess- ment cruise during May and June, 1989, aboard the NOAA Ship David Starr Jordan in the Gulf of the Farallones and Cordell Bank, the Groundfish Physiological Ecology Investigation will collect juvenile yellowtail rockfish and assess their physiological condition. This will be the initial effort and will become a yearly activity in conjunction with monitoring female reproduc- tive development of the Cordell Bank yellowtail rockfish population."
        },
        {
            "spans": [
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                    "offset": 90933,
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                }
            ],
            "content": "During this initial study, a range of measure- ments that potentially evaluate physiological condition will be surveyed. Subsequent data analysis should elucidate the significant relation- ships among the various measures of juvenile condition and between maternal values from the"
        },
        {
            "spans": [
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                    "offset": 91214,
                    "length": 2
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            "content": "24"
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            ],
            "content": "Number of Juvenile Rockfish"
        },
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                    "length": 15
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            ],
            "content": "0 0 8 8 ₽ 90 80"
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            ],
            "content": "condition and between maternal values from the previous adult reproductive cycle. Those juvenile variables which best describe physiological condi- tion and relate to maternal variables will be retained for future yearly assessments. Initially, we will as- sess morphometrics, gross abnormalities, parasite burdens, mesenteric fat, total lipid concentration and energetic lipid to structural lipid ratios, total protein, RNA/DNA, calorimetry, stomach contents, liver histochemistry, and organ histology. Addition- ally, depth profiles of temperature and salinity, and plankton composition and abundance will be recorded. (B. MacFarlane, FTS 556-0569)"
        },
        {
            "spans": [
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                    "length": 53
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            ],
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            ],
            "content": "Condition of Bocaccio, Sebastes paucispinus, Assessed"
        },
        {
            "spans": [
                {
                    "offset": 91966,
                    "length": 919
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            ],
            "boundingRegions": [
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            ],
            "content": "Starting in 1985 bocaccio rockfish have been collected concurrently with the yellowtail rockfish as described in previous reports. The objective was to obtain a preliminary sample which might indicate the degree to which adult condition relates to effec- tive fecundity. Because our initial emphasis was placed on yellowtail rockfish, a smaller sample was taken. Three years of collection resulted in a total sample of 140 bocaccio. After initial analyses, data showed that unlike yellowtail rockfish, bocaccio did not significantly decline in body condition with age (mean age=10.8 yrs; range=2-36 yrs; most fish were 8-11 yrs) and there were no significant cor- relations of parasites and disease with body condi- tion factors measured, although as in most fish, higher nematode burdens occurred in older fish. In general, bocaccio appeared healthier than did yel- lowtail rockfish over the time sampled (1985- 1989)."
        },
        {
            "spans": [
                {
                    "offset": 92886,
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            ],
            "content": "Mean fecundity of females sampled (n=18) was 1,124,227 eggs per female (range=88,133 to 2,690,900 eggs/female). Analyses of fecundity and assessments of viability in additional samples of females will be reported later. (J. Whipple, FTS 556-0569)"
        },
        {
            "spans": [
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                    "offset": 93133,
                    "length": 31
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            ],
            "content": "INFORMATION TECHNOLOGY SERVICES"
        },
        {
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                    "length": 53
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                }
            ],
            "content": "Update of Information Technology 1995 (IT-95) Project"
        },
        {
            "spans": [
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                    "offset": 93219,
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            ],
            "content": "The IT-95 Project was initiated to procure a distributed processing computer system to support the complex scientific and data management needs of NOAA Fisheries into the 1990's. The procure-"
        },
        {
            "spans": [
                {
                    "offset": 93411,
                    "length": 597
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            ],
            "boundingRegions": [
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                        7.2229,
                        0.9381,
                        7.2229,
                        3.0728,
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                }
            ],
            "content": "ment would provide the hardware and software for stand-alone and network processing capabilities at 7 initial sites and 2 additional sites. The 7 initial sites are Seattle, WA; Auke Bay, AL; La Jolla, CA; Honolulu, HI; Miami, FL; Woods Hole, MA; and Silver Spring, MD (Washington, D.C.). The 2 additional sites are tentatively tar- geted for the Pacific Fisheries Environmental Group, Monterey, CA and the Seattle Montlake Laboratory. Though targeted for these two sites, actual placement of these systems would be at the discretion of the Science Directors at the Northwest and Southwest Centers."
        },
        {
            "spans": [
                {
                    "offset": 94009,
                    "length": 668
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Upon the commitment of 3 million dollars by NMFS towards the procurement of the IT-95 system, the NOAA contracting office announced in the April 28, 1989 issue of the Commerce Business Daily that NOAA will release the Re- quest for Proposals (RFP) to the vendors on or about May 30, 1989. The RFP identifies the mandatory requirements, options, and desired features for hardware, peripherals, and software for the IT-95 procurement. To ensure a full, open, and equal competition, the Government incorporated in this RFP the responses to the vendors who commented or questioned the mandatory requirements in the August 1988 Re- quest for Comments, a preview of the RFP."
        },
        {
            "spans": [
                {
                    "offset": 94678,
                    "length": 446
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 27,
                    "polygon": [
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                }
            ],
            "content": "The RFP states that the vendor must propose a system with sufficient memory, processing capability, and I/O capability to satisfy the re- quirements of the live test demonstration (LTD). The proposed system must be capable of processing the mix of concurrent interactive ter- minal time-sharing and batch jobs within a specified time, as directed in the benchmark package. Systems not passing the benchmark test would be considered nonresponsive."
        },
        {
            "spans": [
                {
                    "offset": 95125,
                    "length": 572
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 27,
                    "polygon": [
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                    ]
                }
            ],
            "content": "The benchmark package is in the final phase of development by the Benchmark Team, chaired by Bob Riemann (NW). The benchmark team members from the regional sites are Frank Kikuchi (NW), Roger Hewitt (SW), Charlie Krouse (SE), Jim Sargeant (NE), and Dick Schween (HQ/RE1). The benchmark package consists of master tapes of the representative programs and data sets from each of the five sites, an instruction set, and a script for the live demonstration at the site visit. The program tapes contain a mix of COBOL, FORTRAN, and data base language programs for the Burroughs"
        },
        {
            "spans": [
                {
                    "offset": 95698,
                    "length": 2
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "25"
        },
        {
            "spans": [
                {
                    "offset": 95701,
                    "length": 104
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
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                }
            ],
            "content": "and VAX operating systems. The vendors must convert the programs for execution on their proposed system."
        },
        {
            "spans": [
                {
                    "offset": 95806,
                    "length": 575
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 28,
                    "polygon": [
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                    ]
                }
            ],
            "content": "With the RFP targeted for release on May 30, the benchmark package must be available to the ven- dors by June 10. The charge to the vendors is $300 for the package. Distribution of the package will be controlled by Meredith Beeg, the NOAA Contract- ing Officer. If the benchmark package cannot be completed by June 10, the release of the RFP will be delayed and held for release 10 days prior to a firm completion date of the benchmark package. Based on a May 30 RFP release date, benchmark at the vendors' sites could begin the latter part of August. (D. Roll, FTS 893-7057)"
        },
        {
            "spans": [
                {
                    "offset": 96382,
                    "length": 22
                }
            ],
            "boundingRegions": [
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                    "pageNumber": 28,
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                }
            ],
            "content": "STATUS OF PUBLICATIONS"
        },
        {
            "spans": [
                {
                    "offset": 96405,
                    "length": 9
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        4.5117
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                }
            ],
            "content": "Published"
        },
        {
            "spans": [
                {
                    "offset": 96415,
                    "length": 161
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
                        1.1654,
                        4.6263,
                        4.1886,
                        4.6263,
                        4.1886,
                        5.2183,
                        1.1654,
                        5.2183
                    ]
                }
            ],
            "content": "Alcorn, Doris J. and Elizabeth K. Buelna. 1989. The Hawaiian monk seal on Laysan Island, 1983. U.S. Dep. Commer., NOAA Tech. Memo., NOAA-TM- NMFS-SWFC-124, 45 p."
        },
        {
            "spans": [
                {
                    "offset": 96577,
                    "length": 227
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
                        1.1797,
                        5.3711,
                        4.1934,
                        5.3711,
                        4.1934,
                        6.092,
                        1.1797,
                        6.092
                    ]
                }
            ],
            "content": "Cole, David A. and Douglas R. McLain. 1989. Interan- nual variability of temperature in the upper layer of the north Pacific eastern boundary region, 1971- 1987. U.S. Dep. Commer., NOAA Tech. Memo., NOAA-TM-NMFS-SWFC-125, 14 p."
        },
        {
            "spans": [
                {
                    "offset": 96805,
                    "length": 215
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
                        1.1845,
                        6.2496,
                        4.1934,
                        6.2496,
                        4.1934,
                        6.9514,
                        1.1845,
                        6.9514
                    ]
                }
            ],
            "content": "Graham, Jeffrey B., William R. Lowell, N. Chin Lai and R. Michael Laurs. 1989. O2 tension, swimming- velocity, and thermal effects on the metabolic rate of the Pacific albacore Thunnus alalunga. Exp. Biol. 48:89-94."
        },
        {
            "spans": [
                {
                    "offset": 97021,
                    "length": 709
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
                        1.4117,
                        7.1281,
                        4.1949,
                        7.1232,
                        4.1986,
                        9.3116,
                        1.4155,
                        9.3165
                    ]
                }
            ],
            "content": "The oxygen consumption rates (VO2) of 9 albacore tuna, Thunnus alalunga (8.5-12 kg) were measured at sea in a swimming respirometer to determine the effects of relative swimming velocity, ambient O2 tension, and water temperature. Significant positive relationships were obtained between tail-beat fre- quency and relative speed and between relative speed and VO2. The albacore metabolic rate was not appreciably affected by exposure to water temperatures ranging from 13.5° to 16.9℃. Brief exposure to hyperoxia (200-400 mm Hg), which was done to reduce the initial stress upon fish in the respirometer, did not affect VO2. Hypoxia (50-99 mm Hg), however, did tend to reduce VO2 and affect swimming velocity."
        },
        {
            "spans": [
                {
                    "offset": 97731,
                    "length": 153
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        9.4674,
                        4.1982,
                        9.4674,
                        4.1982,
                        9.9067,
                        1.1749,
                        9.9067
                    ]
                }
            ],
            "content": "Humphreys, Robert L., Jr., Gary A. Winans, and Darryl T. Tagami. 1989. Synonymy and life history of the North Pacific pelagic armorhead, Pseudopentaceros"
        },
        {
            "spans": [
                {
                    "offset": 97885,
                    "length": 61
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        7.336,
                        0.9071,
                        7.336,
                        1.1697,
                        4.7378,
                        1.1697
                    ]
                }
            ],
            "content": "wheeleri Hardy (Pisces: Pentacerotidae). Copeia 1989:142-153."
        },
        {
            "spans": [
                {
                    "offset": 97947,
                    "length": 803
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        1.329,
                        7.3564,
                        3.9386,
                        4.7352,
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                    ]
                }
            ],
            "content": "Specimens of the nominal species Pseudopen- taceros wheeleri Hardy and P. pectoralis Hardy were examined morphologically and electrophoretically to test the validity of the two species. Samples were collected primarily from the Hancock Seamounts of the southern Emperor-northern Hawaiian Ridge as well as from the North Pacific open ocean and northwestern Hawaiian Islands. Morphometric results indicate continuity between P. wheeleri and P. pectoralis. No evidence of species separa- tion was revealed in analyses of merisitc and electrophoretic data. We conclude that the North Pacific pelagic armorhead consists of a single, metamorphic species, which we, as first revisers, elect to call P. wheeleri. A hypothesis is proposed that attributes morphological variation to different life-history stages."
        },
        {
            "spans": [
                {
                    "offset": 98751,
                    "length": 135
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        4.1059,
                        7.3451,
                        4.5347,
                        4.4885,
                        4.5252
                    ]
                }
            ],
            "content": "Owen, R. W. 1989. Microscale and finescale varia- tions of small plankton in coastal and pelagic environments. J. Mar. Res. 47:197-240."
        },
        {
            "spans": [
                {
                    "offset": 98887,
                    "length": 156
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        5.2557,
                        4.4876,
                        5.2461
                    ]
                }
            ],
            "content": "Somerton, David A., Bert S. Kikkawa, and Christopher D. Wilson. 1988. Hook timers to measure the capture time of individual fish. Mar. Fish. Rev. 50(2):1-5."
        },
        {
            "spans": [
                {
                    "offset": 99044,
                    "length": 506
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
                        4.7426,
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                        7.3647,
                        5.4093,
                        7.3647,
                        6.9944,
                        4.7426,
                        6.9944
                    ]
                }
            ],
            "content": "To measure capture time of individual fish on a longline, two types of hook timers installed in the leaders and activated by a striking fish were designed and tested: 1) A corrosion timer that measures time indirectly from the mass loss of the anode in a galvanic corrosional reaction and 2) a digital timer that measures time directly by a digi- tal watch module. The digital timer proved to be superior because it is reusable, quicker to deploy and retrieve, and measures time directly with little error."
        },
        {
            "spans": [
                {
                    "offset": 99551,
                    "length": 44
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        7.1806,
                        6.782,
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                    ]
                }
            ],
            "content": "Approved, Science and Research Director, SWR"
        },
        {
            "spans": [
                {
                    "offset": 99596,
                    "length": 277
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        7.5959,
                        7.358,
                        8.465,
                        4.5009,
                        8.4555
                    ]
                }
            ],
            "content": "Bakun, Andrew. Mechanisms for density-dependent growth: alternatives to impact on the regional- scale food supply. For publication in The Peruvian Upwelling System: Dynamics and Inter- actions. ICLARM Studies and Reviews 18. In- stituto del Mar del Peru (IMARPE), Callao, Peru."
        },
        {
            "spans": [
                {
                    "offset": 99874,
                    "length": 259
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        7.3637,
                        9.4909,
                        4.4976,
                        9.4861
                    ]
                }
            ],
            "content": "Forsyth, Robert G., and George H. Balazs. [Green turtle, Chelonia mydas] Species profile: Life his- tory and environmental requirements of the green turtle, Chelonia mydas, in the Pacific Ocean Region. U.S. Army Corps of Engineers, Vick- sburg, MS 39180-0631."
        },
        {
            "spans": [
                {
                    "offset": 100134,
                    "length": 100
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
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                        9.6489,
                        7.3551,
                        9.9401,
                        4.5081,
                        9.9353
                    ]
                }
            ],
            "content": "Gerrodette, Tim, Barry K. Choy, and Lisa M. Hiruki. An experimental study of derelict gill-net frag-"
        },
        {
            "spans": [
                {
                    "offset": 100235,
                    "length": 2
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 28,
                    "polygon": [
                        4.1074,
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                        4.265,
                        10.3889,
                        4.265,
                        10.4987,
                        4.1074,
                        10.4987
                    ]
                }
            ],
            "content": "26"
        },
        {
            "spans": [
                {
                    "offset": 100238,
                    "length": 134
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        0.9764,
                        4.0446,
                        1.4024,
                        1.2636,
                        1.4024
                    ]
                }
            ],
            "content": "ments in the central Pacific Ocean. Proceedings of the Second International Conference on Marine Debris, 2-7 April 1989, Honolulu, HI."
        },
        {
            "spans": [
                {
                    "offset": 100373,
                    "length": 228
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
                        1.01,
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                        4.0398,
                        1.5556,
                        4.0398,
                        2.2783,
                        1.01,
                        2.2783
                    ]
                }
            ],
            "content": "Huppert, Daniel D. and Roger D. Fight. Economic con- siderations in managing salmonid fish habitat. For publication in Salmonid habitat in forest and range lands: principles and effects of management. American Fisheries Society."
        },
        {
            "spans": [
                {
                    "offset": 100602,
                    "length": 200
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        4.0396,
                        2.4267,
                        4.0405,
                        3.0052,
                        1.0107,
                        3.01
                    ]
                }
            ],
            "content": "Lynn, Ronald J. and James J. Simpson. The influence of bathymetry upon the flow of the undercurrent off southern California. For consideration for publica- tion in the Journal of Geophysical Research."
        },
        {
            "spans": [
                {
                    "offset": 100803,
                    "length": 301
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
                        1.0147,
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                        4.035,
                        3.1542,
                        4.035,
                        4.1546,
                        1.0147,
                        4.1546
                    ]
                }
            ],
            "content": "Perrin, William F. Steno attenuatus Gray, 1846 (Mam- malia, Cetacea): proposed conservation by suppres- sion of Delphinus velox G. Cuvier, 1829, D. psuedodelphis Wiegmann, 1840 (or earlier) and D. brevimanus Wagner, 1846. For consideration for publication in the Bulletin of Zoological Nomencla- ture."
        },
        {
            "spans": [
                {
                    "offset": 101105,
                    "length": 185
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        4.3269,
                        4.0398,
                        4.8917,
                        1.0147,
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                    ]
                }
            ],
            "content": "Polovina, Jeffrey J. Artificial reefs: nothing more than benthic fish aggregators. For consideration for pub- lication in California Cooperative Oceanic Fisheries Investigation Reports."
        },
        {
            "spans": [
                {
                    "offset": 101291,
                    "length": 171
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
                        1.0097,
                        5.0544,
                        4.0442,
                        5.0496,
                        4.0451,
                        5.6215,
                        1.0106,
                        5.6263
                    ]
                }
            ],
            "content": "Simpson, James J. and Ronald J. Lynn. A mesoscale eddy dipole in the offshore California Current. For consideration for publication in the Journal of Geophysical Research."
        },
        {
            "spans": [
                {
                    "offset": 101463,
                    "length": 22
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
                        4.3509,
                        0.9716,
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                        0.9812,
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                        1.1248,
                        4.3501,
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                    ]
                }
            ],
            "content": "Administrative Reports"
        },
        {
            "spans": [
                {
                    "offset": 101486,
                    "length": 164
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        7.2092,
                        1.2397,
                        7.2083,
                        1.8118,
                        4.3452,
                        1.807
                    ]
                }
            ],
            "content": "Barlow, Jay. 1989. Estimating sample size required to monitor marine mammal mortality in Califor- nia gill-net fisheries. SWFC Admin. Rep., La Jolla, LJ-89-08, 8 p."
        },
        {
            "spans": [
                {
                    "offset": 101651,
                    "length": 125
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
                        4.3462,
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                        7.2037,
                        1.9672,
                        7.2037,
                        2.398,
                        4.3462,
                        2.398
                    ]
                }
            ],
            "content": "Clarke, Raymond P. 1989. Annual report of the 1988 western Pacific lobster fishery. SWFC Admin. Rep., Honolulu, H-89-5, 28 p."
        },
        {
            "spans": [
                {
                    "offset": 101777,
                    "length": 166
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
                        4.3462,
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                        7.214,
                        2.5559,
                        7.213,
                        3.1271,
                        4.3452,
                        3.1223
                    ]
                }
            ],
            "content": "Holland, Robert. 1989. A personal computer based system for analog-to-digital and serial com- munication data acquisition. SWFC Admin. Rep., La Jolla, LJ-89-09, 24 p."
        },
        {
            "spans": [
                {
                    "offset": 101944,
                    "length": 139
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        3.7097,
                        4.3407,
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                    ]
                }
            ],
            "content": "Holts, David B. and Dennis Bedford. 1989. Report of the Assessment Methods Workshop for Sharks. SWFC Admin. Rep., La Jolla, LJ-89-11, 21 p."
        },
        {
            "spans": [
                {
                    "offset": 102084,
                    "length": 167
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        7.2181,
                        3.8578,
                        7.2181,
                        4.4322,
                        4.3462,
                        4.4322
                    ]
                }
            ],
            "content": "Kasaoka, Laurel D. 1989. Summary of small boat economic surveys from American Samoa, Guam, and the Northern Mariana Islands. SWFC Admin. Rep., Honolulu, H-89-4C, 47 p."
        },
        {
            "spans": [
                {
                    "offset": 102252,
                    "length": 123
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        7.2128,
                        5.0135,
                        4.3454,
                        5.0087
                    ]
                }
            ],
            "content": "Lo, Nancy C. H. 1989. Estimation of the port sam- pling of the wetfish fishery. SWFC Admin. Rep., La Jolla, LJ-89-10, 28 p."
        },
        {
            "spans": [
                {
                    "offset": 102376,
                    "length": 148
                }
            ],
            "boundingRegions": [
                {
                    "pageNumber": 29,
                    "polygon": [
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                        7.2133,
                        5.7436,
                        4.3462,
                        5.7436
                    ]
                }
            ],
            "content": "Perrin, Christina C. and Anthony P. Majors. 1989. U.S. Pacific albacore fishery data base descrip- tion. SWFC Admin. Rep., La Jolla, LJ-89-07, 34 p."
        },
        {
            "spans": [
                {
                    "offset": 102525,
                    "length": 2
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