﻿{"Bibliographic":{"Title":"Southwest Fisheries Center Monthly Report: May 1974","Authors":"","Publication date":"1974","Publisher":"Southwest Fisheries Center (U.S.)"},"Administrative":{"Date created":"06-26-2025","Language":"English","Rights":"CC 0","Size":"0008213207"},
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    "content": "DO\nT OF\nPAR\nERCE\n*\nUNITED\nAMERICA\nTED STATES OF AME\nHONOLULU\nS\nLA JOLLA\nTIBURON\nSOUTHWEST FISHERIES CENTER\nMONTHLY REPORT-MAY 1974\nResearch Highlights Page\n· Publications\n1\n. Albacore Fishery Expected to be Centered North, But Outlook off California Improved. 3\n. Cooperative Arrangements for Silver Salmon Pen Rearing Proceeding. . 5\n. Technical Meeting on Program for Analysis of Porpoise Population Dynamics Held at Southwest Fisheries Center. 9\n· Uptake and Accumulation of Crude Oil Components by Juvenile Herring Studied 11\n. NOAA's National Weather Service Augments Participation in FAX Program at La Jolla 12\n. Preliminary Population Dynamics Analyses Completed on White Seabass 14\n. Pacific Mackerel Successfully Reared from Egg through Metamorphosis on Laboratory-Cultured Food at La Jolla. 19\n. Shifts in Recreational Fish Distribution Induced by Climatic Changes. 21\n. Second Trial Anchovy Shipment Successfully Delivers 500 Pounds of Baitfish to Hawaii 22\n. Northern Anchovy as Live Bait Produce Good Tuna Catches in Hawaii. 23\nNOAA/NMFS\n. SOUTHWEST FISHERIES CENTER, LA JOLLA, CALIFORNIA HONOLULU LABORATORY LA JOLLA LABORATORY TIBURON LABORATORY\nMONTHLY REPORT-MAY 1974\nSTATUS OF PUBLICATIONS-SWFC\nPublished\nAlvariño, Angeles. 1974. Distribution of siphonophores in the regions adjacent to the Suez and Panama Canals. Fishery Bulletin (U. S.) 72 (2): 527-546.\nIn this paper, distribution is described of siphonophores in the regions adjacent to the Suez and Panama Canals based on material collected by Israeli cruises in the eastern Mediterranean and the Red Sea (Gulf of Elat) , and by Scripps Institution of Oceanography Expeditions in the Caribbean and the Pacific regions adjacent to the Panama Canal. Published information on the distribution of siphonophores in those areas and in adjacent regions is included as are distributional tables and maps.\nMacGregor, John S. 1974. Changes in the amount and proportions of DDT and its metabolites, DDE and DDD, in the marine environ- ment off southern California, 1949-72. Fishery Bulletin (U. S.) 72 (2) : 275-293.\nThis paper is about the contamination of the ocean and its biota off southern California by the pesticide, DDT. The accumulation of DDT and the changes in proportions of DDT and its metabolites in the ocean are described for the years 1949 to 1972, especially as they are reflected in the myctophid fish, Stenobrachius leucopsarus. This time period was characterized by continuous dumping of DDT wastes into the ocean by a large manufacturer of DDT and the cessation of this dumping in 1970. Aspects and implications of the pesticide pollution problem in the marine environment are discussed.\nThis report does not constitute publication and is for information only\nMoser, H. Geoffrey and Elbert H. Ahlstrom. 1974. Role of larval stages in systematic investigations of marine teleosts: The Myctophidae, a case study. Fishery Bulletin (U.S.) 72(2): 391-413.\nThe lanternfish family Myctophidae is the most widespread family of midwater fishes in the world ocean. As presently recognized it contains about 30 genera and 300 nominal species. Their larvae are highly prominent in the plankton and make up about 50% of all larvae taken in open-ocean plankton tows.\nStudies of myctophid larvae, on a worldwide basis by Drs. Moser and Ahlstrom have demonstrated that characters of the larval stages of lanternfishes are of great utility in systematic analysis. The genera and species can be recog- nized on the basis of eye and body shape, the shape and length of the gut, pigment pattern, and the sequence of photophore development. In this paper the larvae of 55 species representing 24 genera are illustrated and used to demonstrate the usefulness of larvae in understanding the relationships of species within genera.\nRothschild, B.J. 1973. Questions of strategy in fishery management and development. Journal of the Fisheries Research Board of Canada, 30(12) , Part 2: 2017-2030.\nIn this paper, Dr. Rothschild defines the subject of fishery management and development, and explores the thesis that to make significant advances in fishery management and de- velopment there is a need to be concerned with constructing and investing in institutions that are capable of asking the right questions in the area of resource management and de- velopment; developing the most efficient means for making proper decisions relevant to these questions; and developing the capability to carry out activities which will facilitate these decisions. The most striking concept offered in this paper is that fishery management and development seem to be more preoccupied with tactics than with strategy.\nApproved by Center Director\n\"Yield per recruit for multi-gear fisheries (MGEAR) , Burroughs 6700, FORTRAN IV\" by William H. Lenarz. For publication in the Transactions of the American Fisheries Society -- Note.\n\"Schooling in the ecology of fish\" by John R. Hunter. For publication in the Transactions of the American Fisheries Society -- Review.\n2\nALBACORE FISHERY INVESTIGATIONS\nAlbacore Fishery Expected to be Centered North, but Outlook off California Improved\nDr. Michael Laurs and his staff in the Albacore Fishery Investigations at the La Jolla Laboratory have issued the 14th annual forecast of the location of the 1974 albacore fishery. According to Dr. Laurs it appears that during the 1974 Pacific West Coast albacore fishery, approximately 60% of the catch will be taken in waters north of San Francisco and 40% in waters to the south. Catches off California are expected to improve this year over 1973 when the catch was divided about 80% north of San Francisco and 20% south, with most of the catch coming from waters off the Pacific Northwest. If 1974 is an \"average year,\" a total of 20,050 to 30, 350 tons of fish could be expected to be landed. This estimate of landings is based on the mean and standard deviation, 25, 200 and 5, 150 tons, respectively, of West Coast albacore catches for the period 1964-1973. The increase in fleet capacity that occurred in recent years and the possibility of an early start of the fishery this year could boost the 1974 catch above the \"average.\" An accurate pre-season prediction of how much fish will be caught during the 1974 season is difficult to make because of insufficient knowledge concerning the population dynamics of the North Pacific albacore and fish-ocean relationships. The outlook for albacore sportsfishing off southern California is good, based on offshore scouting reports.\nThe forecast of the general distribution of the albacore fishery is based on predictive indices developed at the La Jolla Laboratory, which relate north-south geographic variations in the fishery with oceanographic and meteorological conditions during the spring months in certain offshore waters through which albacore migrate in their travel to the waters off North America.\nEarly Albacore Fishing Results Indicate Change in Catch Pattern and Abundance\nThe 1974 cooperative NMFS-American Fisherman's Research Foundation (AF RF) albacore-oceanography survey began in late May. The research vessel, David Starr Jordan, with Oceanographer R. Lynn of the La Jolla Laboratory as scientific leader, left San Diego on May 20 and began working with the five AFRF-chartered albacore jigboats on June 4. Early findings by scientists on the Jordan showed complex frontal systems in the area between 30-41º north latitude, 137-139º west longitude. These\n3\nfronts were broken and quite different from those encountered during the previous 2 years. Albacore catches also reflected the complexity of the frontal system; catches were scattered and good fishing areas did not remain consistent. Nevertheless, fish were caught earlier closer to shore, and in larger numbers this year than last year.\nDr. Michael Laurs, leader of the Albacore Fishery Investigations, with the assistance of Mr. Lynn and Dr. Clark, Meteorologist, completed a document on albacore tuna forecasting and monitoring at the La Jolla Laboratory which will form the basis of a manuscript for publication.\nCOASTAL FISH COMMUNITIES INVESTIGATIONS\nDiffering Day-Night Patterns of Activity and Distribution of Planktivorous Fisheries Tied to Diel Variation in Nearshore Plankton\nIn the continuing investigations by the Tiburon Laboratory of nearshore recreational fishes, Dr. Edmund Hobson, Project Leader, has completed another segment of a study of the relationships between planktivorous fishes and plankton in nearshore waters. During May, as during earlier collecting periods, the nearshore plankton were sampled at different levels of the water column, day and night, at both new and full moon. Concurrent with both day and night plankton collections, and in the same location, the activities of fishes that feed on plankton were observed, and specimens were collected for study of food habits. These fishes are: the olive rockfish, Sebastes serranoides; the salema, Xenistius californiensis; the queenfish, Seriphus politus; the surf perch, Hyperprosopon argenteum; the kelp perch, Brachyistius frenatus; and the blacksmith, Chromis punctipinnis. All of these fishes, which are important sport species or prey of sport species, are being found to have strikingly different activity and distribution patterns between day and night, and these are being found to relate to equally striking day-night differences in the composition and distribution of the plankton.\nDr. William McFarland, Cornell University, joined the Tiburon Laboratory group at Santa Catalina Island for 2 weeks during May. This joint effort will collect data and specimens for study of the visual pigments of kelp bed fishes as they relate to activity patterns of these fishes and to the spectral composition of light in the waters of their habitat.\n4\nCOASTAL FISHERIES INVESTIGATIONS\nArrangements for Silver Salmon Pen Rearing Proceeding\nThis project is being undertaken to determine the feasibility of rearing silver salmon in salt water pens at Tiburon for later release into San Francisco Bay. The project is being jointly conducted by U.C. Davis Sea Grant Extension, the San Francisco Tyee Club, the California Department of Fish and Game and the Tiburon Laboratory. Dr. Robert Brocksen, Research Physiologist, and Mr. Lloyd Richards, Biological Technician, are representing the Tiburon Laboratory on this project.\nSalmon raised in salt water grow quite rapidly and we expect their weights will increase from 1/30th of a pound to 1/10th of a pound during 3 months of pen life. These large fish should produce a good return to the sport and commercial fisheries. This initial rearing will provide information on whether the salmon will remain in the Bay or spend the adult portion of their lives at sea. If they remain in San Francisco Bay, a new sport fishery will be created.\nThe silver salmon, from California Department of Fish and Game's Mad River hatchery, will be inoculated for vibrio and tagged with coded wire tags at the hatchery during June. Shortly thereafter, they will be trans- ported to Tiburon and placed in a floating pen to be fed and nurtured. Release is expected to take place this fall.\nThe project is an excellent example of cooperation between a university, a sportfishing club, and state and federal fisheries agencies.\nFishery Development:\nRed Crab -- Biologist Susumu Kato, leader of the Fishery Development Task at the Tiburon Laboratory reports that the fishing vessel Lady Olga arrived in San Pedro on May 12 with a full load of 35 tons of ground and frozen pelagic red crab (Pleuroncodes planipes) . The trip was the fourth for the vessel and brought its total catch to about 115 tons. The catch was bought by the Lummi Indian Tribe and Domsea Farms. Both will include the ground crabs in the diet of pen-reared salmon to color the flesh. The Small Tribes Organization of Western Washington, an organization of Indian tribes, is obtaining good results with a feed mixture of Oregon moist pellets, red crabs, and shrimp waste. The added coloring of salmon flesh achieved reportedly raises the value of the salmon by about 25 cents per pound.\n5\nTwenty tons of red crabs caught during a previous trip were finally dried at Universal Packers in Oxnard in preparation for export to Japan. The crabs yielded a disappointingly low proportion of meal, about 12 percent. Much of the product apparently remained in the drying machinery. With larger quantities of crabs the yield is expected to be about 17 percent or better.\nPelagic red crab has potential for use in the following areas:\n1. Coloring flesh of pen-reared salmon: This has proved effective and brings a good economic return to salmon farmers. Trout farmers have also indicated an interest in using red crabs.\n2. Pet food: This has proved feasible but high ex-vessel price prohibits use at present.\n3. Human food, as flavoring and additive in a variety of products: A large potential market exists in Japan, but price and technological problems are obstacles to immediate use. A local fishcake manufacturer also would use red crab if a steady supply were available.\n4. Chitosan and chitin, from the exoskeleton: This use holds good potential for large-scale use of red crabs, when coupled with any one of the above uses for the oils and proteins.\nResearch on products and market potential has been carried out at the Pacific Food Products Technology Laboratory and at the Tiburon Laboratory. Our role in the development of the red crab fishery has been to work with the fishermen in developing fishing gear and techniques, improving handling and storing methods, and acting as liaison between the producers and potential users. We have loaned fishing gear and a grinder to the Lady Olga and have accompanied the vessel on two fishing trips.\nThe goal of the project is to come up with a fishing and handling system that would enable fishermen to catch red crabs profitably at a price low enough to enable the various interested groups to use red crabs. Improve- ments of dockside handling and shipping methods, as well as product re- search are still needed to maximize efficiency.\n6\nAngler's Guide to the United States Pacific Coast\nDuring May, the remaining sections of the Angler's Guide (Southern California, Oregon and Washington) were prepared for outside review. The Guide, which is being prepared by James L. Squire, Jr., of the La Jolla Laboratory, and Susan E. Smith, at the Tiburon Laboratory, will describe sport fishes, fishing grounds, and angler facilities all along the west coast from California to Alaska, including Hawaii, American Samoa, and Guam.\nReview copies were received from the California Department of Fish and Game, the Guam Division of Fish and Wildlife, and the California Academy of Sciences. Reviewer's suggestions are now being incorporated into the text.\nFISH ENVIRONMENT INVESTIGATIONS\nExperiments on Skipjack Tuna Metabolism Extended to Water Temperatures Above and Below 24ºC\nProductivity of the seas in terms of tuna flesh is dependent upon a supply of food adequate to provide the energy needed by tunas for growth and activity. Experiments have begun that will permit estimation of the energy required for routine activity of skipjack tuna at all temperatures where they are likely to occur. These are an extension of previously completed experiments on routine metabolism of skipjack tuna at a single temperature, 24°C, and are being conducted at the Honolulu Laboratory by Research Assistants Randolph Chang and Bernard Ito, under the supervision of Fishery Biologist Dr. William Neill.\nA few experiments at above- and below-ambient temperatures have now been executed. Results suggest increased metabolism and faster swimming at higher temperatures , but variability within the small amount of data gathered so far prohibits quantification of the thermal effect. More experi- ments are underway.\nTuna Behavioral Thermoregulation System Now Complete Except for Heater-Switching Assembly\nA unique apparatus for the study of tuna behavior in temperature gradients approximating those of the open ocean has been developed by Dr. Neill and Fishery Biologist Dr. Andrew Dizon of the Honolulu Laboratory. Termed\n7\nthe tuna behavioral thermoregulation system, it is a doughnut-shaped, 8000-liter tank whose temperature is controlled automatically by a tuna's direction and speed of swimming in the circular channel. By reversing direction in the tank, a tuna may raise or lower the temperature of the water to its liking. An understanding of the temperature is thought to be a major factor limiting tuna distribution and abundance in the world's oceans .\nConstruction of the system is now complete except for the heater-switching assembly, where a design error has caused a 4-6 week delay in start-up. The contractor is rebuilding the assembly.\nAlso planned for the doughnut tank are a series of experiments to explore the orientation and regulatory responses of tunas to gradients of food. These experiments, briefly underway, were interrupted for the past month so that the thermoregulation system's temperature-controlling parts could be installed and tested.\nIsland Wake Data Analysis Nears Completion\nThe island wake studies are aimed at understanding the influence of islands, banks, and seamounts on the nearby ocean, influence which might account for the association of many high seas fisheries with such features. The working hypothesis is that currents, as they flow past these obstacles, generate mixing and local upwelling that enriches the water downstream, and that this enrichment eventually attracts large predators of interest to fishermen.\nData from the first Line Island field study have been almost completely analyzed, and a report is being prepared. Data from the second cruise are still being worked on. NOAA Corps Officer Lt. Bruce Crumley, assigned at present to the Honolulu Laboratory, has been analyzing the data from five Townsend Cromwell equatorial cruises upstream of the Line Islands to look for relationships between the many sets of observations made during these cruises. These include meteorological observations, ocean- ographic station and other data, and a variety of biological observations. No new clear-cut relationships have been established.\nDr. Richard A. Barkley, Oceanographer and Chief of the Fish-Environment Investigations at Honolulu, prepared a summary chart showing surface and near-surface currents in the western South Pacific, in response to an outside request.\n8\nRecreational Fisheries Report Completed\nFishery Biologist Heeny Yuen completed a report on marine resources and habitats in the State of Hawaii for the Hawaii Water Resources Regional Study. He also completed a paper for the baitfish workshop entitled \"Desired characteristics of a bait for skipjack tuna.\" Mr. Yuen was coordinator of the Honolulu Laboratory's extremely successful Makahiki Kai display. Also in the month of May, the Recreational Fisheries group under the leadership of Mr. Yuen, completed all preparations for tracking yellowfin tuna in waters of leeward Oahu by the scheduled departure date of June 1.\nMARINE MAMMAL INVESTIGATIONS\nProgram Manager Serves as Scientific Advisor at DEIS Hearings\nDr. Eric Barham, Porpoise Program Manager at the La Jolla Laboratory, served as scientific advisor at the Draft Environmental Impact Statement (DEIS) hearings on porpoise held at the Customs Building at Terminal Island, California on May 9, 1974. The hearing officer was Mr. Joseph R. Blum, NMFS, Washington, D.C .; Mr. Martin Hockman, a staff attorney for NOAA, functioned as the legal officer.\nWritten statements were accepted, oral presentations were heard and questions accepted through the hearing officer. Representatives of the tuna industry, unions, and major conservation groups such as \"Project Jonah, \" the Environmental Defense Fund, and the American Cetacean Society presented their views on the DEIS which had been prepared by the NOAA-NMFS staff in Washington, D.C.\nAs a result of these hearings, Mr. William Jensen, Office of Resource Management, NMFS, Washington, D.C. is scheduled to visit the Center in mid-June to discuss revisions in the DEIS with the staff of the Marine Mammal Investigations.\nTechnical Meeting on Program for Analysis of Porpoise Population Dynamics Held at Southwest Fisheries Center\nA meeting at the La Jolla Laboratory on May 31 to look at what research needs to be done on porpoise population dynamics and to consider how to go about doing it brought together members of the Committee of Scientific Advisers to the U.S. Marine Mammal Commission, the tuna\n9\nindustry, representatives of the Inter-American Tropical Tuna Commission, and government scientists responsible for analyzing the data on porpoise population dynamics. The group discussed estimates of kill, indices of abundance, estimates of gear-dependent mortality, possibilities of a tagging program, and learning behavior of porpoises. They agreed on the magnitude of the task to be accomplished in order to obtain as complete as possible an understanding of porpoise population dynamics, suggested that the analytical possibilities of the data on hand be exhausted, and proposed how these data be treated. It was evident from the discussion that the currently available NMFS resources of monies and manpower at La Jolla are inadequate to respond completely to the requirements of the Marine Mammal Act within the allotted time, but that every effort possible will be made to come up with valid conclusions and an October report on the impact of the tuna fishery on porpoise populations.\nThe La Jolla Laboratory has been sending trained porpoise observers to sea on tuna seiners of the U. S. fleet to collect information on porpoise life history and mortality, and to observe the operation of porpoise-saving gear and techniques. As of this writing 34 observer trips have been com- pleted within the Commission Yellowfin Regulatory Area (CYRA) in 1974. The data taken by the porpoise observers are considered the primary source of information in estimating numbers of porpoise killed in the tuna fishery. Three observers are still at sea, all on their second trips of the 1974 yellowfin tuna fishing season. Dr. Eric Barham, Porpoise Program Manager, is still continuing his efforts to obtain rides for six more observers to accompany tuna seiners on trips outside the CYRA.\nVery few sets on porpoise have been recorded by observers who have returned from second trips as a strong school fish (tuna unaccompanied by porpoise) run has developed. Preliminary figures from the 1974 por- poise observer data indicate that the total mortality of porpoise in 1974 will be reduced over the 2 previous years.\nIn order to meet the October 1974 deadline for a \"final\" report on the impact of the tuna fishery on porpoise populations, all available resources of manpower in the Marine Mammal Investigation at La Jolla have been mobilized to process and analyze the data on porpoise resulting from the observer cruises, aerial survey, marine mammal logs, Jordan cruise, and others. Dr. Tim Smith, Fishery Biologist, who has the primary\n10\nresponsibility for analyzing these data is presently involved in making an estimate of porpoise density based on the aerial survey material. Mr. William Clark of the University of Washington, working for the Marine Mammal Commission, is slated to complete the mortality estimates begun by Dr. Gary Stauffer, who has been re-assigned in the laboratory to work up assessments of important coastal fishes.\nDrs. E. Barham, Porpoise Program Manager and Dr. B. Rothschild, Center Director, attended the formal hearings held in Seattle, May 13-15 to discuss proposed regulations on gear which may be used in the porpoise fishery. The hearing judge was Mr. Harry P. McAlpin, Department of Agriculture. Representatives of NMFS, environmental groups, and the tuna industry presented their views of NMFS-recommended porpoise- saving gear.\nDuring the course of the hearings, a ruling was made by the judge that the Environmental Impact Statement submitted by NMFS was not required by the provisions of the Marine Mammal Protection Act of 1972 but was required under existing Environmental Protection legislation; in that context it would be circulated to all federal agencies for comment.\nAccording to Dr. Barham, all sides will be given 15 days to prepare briefs on their views for submission to Mr. McAlpin, who will then make a recommendation to NMFS Director Schoning to either accept, reject, or modify the proposed gear regulations as set forth by NMFS on April 5.\nPHYSIOLOGY INVESTIGATIONS\nUptake and Accumulation of Crude Oil Components by Juvenile Herring Studied\nAs part of the Oil Physiology Program that has been studying the effects of crude oil components on various life stages of several species of fishes, accumulation and depuration of xylene by juvenile herring is being investigated. Sid Korn, Fisheries Biologist, and Nina Hirsch, Biological Aid at the Tiburon Laboratory, exposed juvenile herring to isotope-labeled xylene ranging in concentration from 0.9-1.9 parts per million. Brain, liver, and muscle tissues were excised from the fish and the two researchers found the accumulation to be highest after approxi- mately 6 days of exposure. At the end of the 24-day exposure period, the\n11\nconcentrations of xylene were considerably lower than any other time during the experiment, although 8 days after termination of the experiment, some benzene and toluene were noted in the tissues of the exposed fish. The accumulated residues were rapidly lost, but there are indications that the xylene was being metabolized to benzene and toluene, two aromatic hydro- carbons found in crude oil. Methods for detection of possible toxic metabolites are presently being investigated and should aid in further definition of potential problems surrounding exposure of fish to crude oil.\nNew Analytical Techniques Evaluated for Aid in Oil Investigations:\nMr. Peter Benville, Research Chemist at the Tiburon Laboratory, attended the International Marine Oil Pollution Monitoring at the National Bureau of Standards in Maryland during the early part of the month. As a result of his attendance, he is developing new techniques involving spectro- photofluorometry in the analyses of aromatic hydrocarbons found in crude oil. Because of the highly toxic and volatile characteristics of these compounds, extremely precise techniques are needed. Benville has found the flourometry method to be 10-100 times more sensitive than the colorimetry method often used, and many times more rapid than gas chromatography. This type of method development is crucial when field measurement for aromatics is necessary in areas of chronic or acute oil contamination. As an example of the contribution such methodology could add, 120 water samples take approximately 20 man-hours of analysis using gas chromatography. The same 120 samples could be processed in 3-4 hours using the flourometer.\nSTOCK ASSESSMENT AND FISHERY EVALUATION INVESTIGATIONS\nNational Weather Service to Participate in FAX Program at La Jolla\nThe FAX weather advisory program at the La Jolla Laboratory is now re- ceiving direct assistance from the National Weather Service's (NWS) forecast office in Redwood City, California. The SWFC program provides wind, weather and sea state forecasts by radio facsimile transmission to tropical tuna fishermen who reciprocate by reporting to SWFC scientists on environmental conditions in the fishing grounds. NWS has completed installation of a data line from Redwood City to SWFC, La Jolla and radio station WWD, according to task leader L. Eber, and the initial test trans- missions of NWS weather advisory charts, received over the line by WWD, were scheduled for the first weekend in June. FAX advisories are not normally broadcast on weekends due to staff limitations. After a suitable period of evaluation and testing, the NWS FAX advisories will be broadcast daily.\n12\nMr. J.F.T. Saur, Oceanographer at the La Jolla Laboratory, reports this month that the first test of a procedure to estimate dynamic height profiles from XBT observations along the track from San Francisco to Hawaii has been completed. The currents and volume transport normal to the section can be computed from these profiles. Since dynamic heights depend not only upon the subsurface distribution of temperature but also of salinity, the procedure is based upon a two-layered model to estimate the salinity structure. The model assumes that the temperature-salinity relationship is linear in the layer from the surface to a point below the thermocline and that it follows an appropriate polynomial curve fitted to historical data in the lower layer. The total calculations, using mean January subsurface XBT temperature data, appear satisfactory for the California Current region and the Eastern North Pacific Central waters. However, some further criteria on the salinity and density structure will have to be developed for the complex Transition Zone before the procedure is considered ready for routine computations on a computer.\nDrift Subroutine Completed\nMathematician A. Coan of the La Jolla Laboratory, with the assistance of Mr. K. Brennecke, Mathematical Technician, has developed a subroutine for the stock recruitment model which determines whether or not a fish larvae has drifted onto shore or out of the area in which the larvae can survive. More than usual attention was paid to efficiency in developing the subroutine because it will be used frequently during the development and production run phases of the model project. A sample from a pre- liminary compilation of historical ship drift data of the California Current region has been received from Mr. Craig Nelson of the Pacific Environ- mental Group in Monterey. These data will be used by Mr. J. Zweifel and Dr. W. Lenarz at the La Jolla Laboratory to simulate drifting of fish larvae in the upper mixed layer for the first version of the stock recruit- ment model. It was not possible to make complete specifications for the ship drift data when arrangements were first made with the PEG because of unfamiliarity with the data. Specifications have been drawn up for a sample from a second compilation which will hopefully allow final speci- fications to be made for the ship drift data. While the ship drift data will be useful for developing the stock recruitment model, it is anticipated that another set of data on the movement of surface water that is being compiled by PEG will provide basis for a more realistic simulation of the drift of fish larvae. The set of data will be calculated from wind and density measurements and is due to be completed in 1 or 2 years.\n13\nProduction Model with Density-Dependent Catchability Completed\nDr. William Fox, Leader of the SAFE Investigations at the La Jolla Lab- oratory, has completed a portion of the analyses he will present at the International Commission for the Conservation of Atlantic Tunas (ICCAT) Population Dynamics Workshop to be held in Nantes, France, in September this year. The effect of a density-dependent catchability coefficient on the equilibrium relationships of the generalized stock production model has been worked out and a computer program, PRODQ, has been written to estimate the parameters from fishery catch and fishing effort data. Pre- liminary application of the model to the California sardine data provided parameters indicating greatly increased catchability with depressed popu- lation size could have occurred, as a number of scientists have hypothesized. The parameters also indicate that the collapse of the fishery could possibly have been due solely to fishing and that it could take a virtual moratorium on fishing, as has been enacted, to replenish the stock. These results do not deny other hypotheses, but do further support the tenability of the fishery-caused hypothesis.\nIATTC Technical Support Analyses Continue\nDrs. William Lenarz and William Fox, Fishery Biologists at the La Jolla Laboratory, devoted a considerable proportion of the month to an analysis of alternative management systems for the IATTC. The work includes examination of the impact of further growth of the already large tropical tuna fleet on the possibility of continuing the present system of having an open season and last free trip. A draft report entitled \"A preliminary analysis of alternative management systems for the eastern Pacific yellowfin tuna fishery\" has been prepared.\nWhite Seabass Preliminary Analyses Completed\nAlec McCall, Fishery Biologist (CF&G) , and Gary Stauffer, Fishery Biologist (NMFS) , working at La Jolla under a cooperative CF &G/NMFS research contract, have prepared a preliminary report for CF &G on the yield per recruit of white seabass, Cynoscion nobilis, exploited by com- mercial gill netters and recreational fisheries. New values for the natural mortality rate and size specific fishing mortality rates were estimated from 1973 catches and age distribution of data. Yield per recruit as a function of size at first capture at various levels of existing commercial fisheries was evaluated. The report will be updated with additional information in the future. Similar analyses will be performed on many other marine rec- reational/commercial California fisheries.\n14\nCalifornia Marine Fisheries Data Compiled\nCommercial catch data for 16 California marine fishes by month and region have been punched on cards in order to make comparisons of catches between areas and month. Bruce Wahlen, Mathematical Technician, has written a program to edit the data file created by CF &G annual catch bulletins. The project's seasonal aid at CF &G in Long Beach has completed compilation of live bait and long-range party boat catch and effort data.\nBrazilian Scientist Analyzing Atlantic Tuna Data\nMr. L.A. Zavala-Camin, Scientific Researcher with the Instituto de Pesca, Santos, Brazil, who is on a training mission at the La Jolla Laboratory, spent the month working with Dr. G. Sakagawa of the Stock Assessment and Fishery Evaluation Investigations. Mr. Zavala-Camin is analyzing data on the Brazilian longline tuna fishery. His analyses so far have indicated that the Brazilian catch of tuna is highest in the second and third quarters of the year and yellowfin tuna make up about 80% of the annual catch in number. Catch rates for 1972 and 1973 were about two to three tuna/100 hooks/quarter. In contrast, the tuna catches of the Japanese longline fleet off Brazil are highest in the second quarter of the year, with albacore tuna making up the bulk of the catch (yellowfin represent only about 8% of the catch) . The Japanese catch rates are about four tuna/100 hooks/quarter.\nAnalysis of Growth Data of Laboratory-Reared Northern Anchovy\nFishery Biologists M. Kimura and G. Sakagawa of the La Jolla Laboratory, have assembled and begun analysis of extensive data on age and growth of laboratory-reared northern anchovy. Their objective is to derive an average growth curve for northern anchovy reared in the laboratory.\nAmerican Catch at Various Distances off West Africa Estimated\nVirtually all the U.S. catch of Atlantic tropical tunas (yellowfin and skip- jack) are annually made off West Africa. The distance from shore at which the catches are made is of interest in understanding the population biology of the tunas as well as in formulating management strategies. Fishery Biologist G. Sakagawa of the La Jolla Laboratory, reports that estimates of Atlantic tropical tuna catches made by American vessels in 1968-72 at various distances off West Africa have been made. The estimates in terms of percentage of total catch for three zones -- (1) shore to 12 miles, (2) shore to 100 miles and (3) shore to 200 miles -- are as follows:\n15\nZones\nRange of percent catch by species Yellowfin Skipjack\n1\n11-30\n15-31\n2\n50-77\n60-86\n3\n74-94\n82-98\nIn all years a greater percentage of skipjack tuna than yellowfin tuna was caught close to the West African shore and a high percentage of the American catches was made within 100 miles of the coast. Mathematical Technician K. Brennecke and Mathematician A. Coan assisted in calculating the estimates.\nSTOCK AND RECRUITMENT INVESTIGATIONS\nMr. Keiichiro Mori of the Far Seas Fisheries Research Laboratory of Shimizu, Japan, finished 11 months of study at the SWFC Laboratory at La Jolla and departed for the Honolulu Laboratory on May 20, where he plans to spend 1 month before returning to Japan. Mr. Mori was studying identification of fish eggs and larvae under the direction of Dr. Ahlstrom.\nMr. Art Kendall of the NMFS Laboratory at Sandy Hook, New Jersey, spent May 28-31 at the SWFC and took and passed preliminary examinations for a Ph. D. at the Scripps Institution of Oceanography. Dr. R. Rosenblatt and Dr. Ahlstrom are co-chairmen of his doctoral committee. Mr. Kendall is working on life history studies on seabass (family Serranidae) , and has found that each of the four subfamilies of serranids represented in the fauna of both U. S. coasts (Atlantic and Pacific) , have characteristic larvae that are strikingly different from subfamily to subfamily.\nFishery Biologist G. Moser at the La Jolla Laboratory, reports continued progress on preparation of the identification guide to scorpion fish larvae. A series of redfish larvae from off New England was provided for study by the Narragansett Laboratory. Examinations of these taxonomic character- istics revealed differences between these larvae and those of Sebastes marinus described by Taning. This lends support to the notion that the redfish off the American coast is specifically distinct from Sebastes marinus found in other regions of the north Atlantic.\nThe larvae of a particularly abundant eastern Pacific rockfish, S. jordani, was illustrated, and the description is now being completed. The larvae of this species bear a remarkable resemblance to those of North Atlantic species of Sebastes. With the Sebastes section of the manuscript nearly completed the briefer descriptions of the larvae of other eastern Pacific scorpionfish larvae will be initiated.\n16\nDr. E. Ahlstrom, Senior Scientist at the La Jolla Laboratory, reported that work continued on assembling series of specimens, descriptions and illus- trations of larvae of California Current fishes for inclusion in a handbook dealing with life history series of California Current fishes. Work is pro- gressing on stromateoid fishes, and on flatfishes (Citharichthys sand dabs) .\nThe neuston samples obtained on extended Cruise 7205 are being identified and tabulated. Dr. Ahlstrom and Biological Technician Betsy Stevens plan to co-author a paper dealing with the neuston hauls. Larvae of several fishes are taken in the surface neuston hauls in much greater abundance than in the standard oblique plankton hauls, including the Pacific saury and the sablefish. Anchovy larvae also are taken in abundance in neuston hauls.\nNOAA Researcher Verifies View that Fish Derived from Benthic Types do not Adapt Ram Mode of Gill Breathing\nModes of gill ventilation have been examined this month in a variety of marine fish at rest and during swimming above and below speeds necessary to support ram ventilation. Dr. John L. Roberts, NRC-NOAA Research Associate at the La Jolla Laboratory, reports further verification of the view that fish derived from benthic types which have well-developed branchiostegal systems do not adopt the ram mode of gill breathing.\nFunctionally, the action of the branchiostegal membranes and supporting bony rays forms a flexible basket around the ventral-to-mid-posterior margins of the opercular covers, greatly facilitating the aspiration of water through the gills during opercular abduction. Typically, the com- bined system provides a slow respiratory cycle of large stroke volume. It is a system well designed for breathing in still water by slowly swimming, opportunistic predators. Consequently, the swimming drag resistance with each cyclic, lateral expansion of the branchial basket contributes little to the metabolic cost of respiration for those fish that depend largely on the opercular aspiration phase of active gill breathing (90+% in time) .\nThe slow swimmers examined were the narrow-headed rockfish of bass-like form (olive rockfish, Sebastes serranoides, and bocaccio, Sebastes paucispinis) and the kelp bass (Paralabrax clothrus) . None were found to adopt ram venti- lation despite their abilities to swim well above speeds necessary to sustain ram ventilation. The reflex mechanism for switching ventilation modes seems to be incomplete in these species .\n17\nThe fast swimmers studied, the striped bass (Morone saxatilis) and the jack mackerel (Trachurus symmetricus) have reduced branchiostegals and respiratory cycles shared about equally in time by the buccal and opercular pumps. Both species convert to ram ventilation at speeds about 50 cm-sec-1.\nContinuing probing of the respiratory center with extracellular recording electrodes has provided a provocative observation in one bocaccio, which turned up quite by accident due to slight electrode movement while the plastic cranial plug was hardening. A single large neuron appeared that was firing randomly against the background bursting of respiratory inter- neurons. It developed that this neuron increased in firing frequency when the tail was deflected to the fish's right and went silent as the tail was deflected left. During swimming at moderate speed, short bursts occurred, synchronous with the tail beat frequency. Does the activity of such neurons provide essential information for the reflex conversion of breathing modes in ram-ventilating fish?\nFresh Water Shown Not to be Essential Prerequisite for Gonad Maturation in Striped Bass\nTo increase the supply of striped bass, a sought-after sportfish, the CF &G would like to be able to spawn and rear striped bass in sea water hatcheries. In February 1973, a collaborative effort between the Inland Fisheries Branch of CF &G and the La Jolla Laboratory to accomplish this in sea water was begun, using the facilities of the sea water aquarium at the SWFC.\nMr. K. Lal of the California Department of Fish and Game (CF &G) and Dr. R. Lasker of the La Jolla Laboratory, report that further attempts at induced maturation of gonads of striped bass in sea water culminated in the successful spawning of one 3.6 kg female this month after a prolonged interval of 5 weeks from the time a first hormone injection was administered. Earlier spawning was not possible as this fish was found with blood patches on the scales along the lateral line due to a sudden outbreak of disease in its tank. The fish was treated with Terramycin injections and allowed to recover fully before administering the second hormone injection to induce spawning. The very low percentage of ripe eggs obtained could be attributed either to the effect of the drug itself or to the absence of required controls in the tank where all diseased fish were segregated, etc. As an interim test about 100 eggs were stripped and fertilized to see if any larvae would hatch. A dozen larvae hatched, and most of them soon died but one survived. Despite this low viability the production of viable eggs and sperm and larvae from fish matured in sea water has been demonstrated. This fish and others matured earlier show that fresh water is not an essential prerequisite for the complete sexual maturation and spawning of striped bass.\n18\nWith the success in maturation of gonads of striped bass both in sea water and 50% sea water, the experiment for maturation of gonads in fresh water and 50% sea water has been terminated, after 5 months. Biopsy of fish in all tanks showed that the majority of females this month are at the immature stage with little or no yolk. Efforts to speed up the maturation process in immature females by giving varying doses of gonadotrophin have produced negative results. The number of mature males in all the tanks has gone up to 17 and a large number of them are in ripe condition.\nPacific Mackerel Successfully Reared from Egg through Metamorphosis on Laboratory-Cultured Food at La Jolla\nDr. J. Hunter, Fishery Biologist at the La Jolla Laboratory, reports that he and Carol Sanchez, Biological Technician, have successfully reared from the egg through metamorphosis the Pacific mackerel, Scomber japonicus. This is the first time mackerel have been reared through metamorphosis on a laboratory cultured food, under controlled conditions. At the age of 18 days the larvae had become juveniles and had an average length of 17.8 mm. The percent survival at 18 days of age was 4% but this is an underestimate because 15 larvae were removed every other day for length/ weight measurements. Eggs were obtained from a laboratory population of mackerel brought to breeding conditions by Mr. Roger Leong.\n*\nDr. Lasker presented an outline of future CalCOFI survey work to the Marine Research Committee of the State of California on May 17. His request that the Committee purchase a particle counter and sizer for laboratory and ship work was approved by the Committee.\nA first draft of a paper describing observations of dense concentrations of a larval food organism, Gymnodinium splendens in the chlorophyll maximum layer over the 20-fathom mark in the Los Angeles Bight was completed by Dr. Dale Kiefer of SIO and Dr. Lasker this month.\nExperiments to determine the threshold concentration for feeding by anchovy larvae on Gymnodinium were completed by Dr. Lasker and Ms. Setzler this month. At 17-18°C first-feeding anchovy larvae drop in feeding efficiency at 20 food particles per milliliter. This information is needed to assess the feeding results obtained with first-feeding concentrations.\n19\nVirtually all the particle counts taken at sea in March, April, and May in a search for anchovy larval feeding areas, have been verified with the inverted microscope. Additional information on phytoplankton species composition of chlorophyll maxima was also obtained.\nLarval Growth Paper Completed\nA manuscript, \"Prenatal and postnatal growth of fishes - a general model\" by Jim Zweifel, Mathematician, and Reuben Lasker of the La Jolla Lab- oratory, has been completed. The paper examines the temperature specific development of several species in the early larval stage and presents a five-parameter Gompertz-type growth model to describe events from fertilization through depletion of the yolk-sac.\nSURVEY SYSTEMS ANALYSIS INVESTIGATIONS\nDr. Robert Owen, Oceanographer at the La Jolla Laboratory, has com- pleted a time series of the Southern California Eddy by computing and plotting variations of his index of the offshore component of geostrophic flow, as measured by the variation of dynamic slope across the north- south axis of the Eddy. Plans were formulated to develop and compute water column stability, geostrophic flow shear, and vertical mixing rate from CalCOFI oceanographic data, also to be extended as time series.\nDr. Owen has completed a manuscript entitled, \"Distribution of primary production, plant pigments, and Secchi depth in the California Current region, 1963.\" The work is to be published together with nutrient dis- tributions as CalCOFI Atlas No. 20, to provide working charts of phyto- plankton dynamics of the region. Distributions show clearly the influence of coastal upwelling and the Southern California Eddy, and the existence and character of seasonal variations.\nNet Avoidance Demonstrated for Young Larvae\nDr. Paul Smith at the La Jolla Laboratory, has produced a comparison of the numbers of larvae, in various size classes, that were taken in CalCOFI plankton tows during February 1970. These numbers vary throughout the day for size classes of 3.75, 5.75, 7.75, and 9.75 millimeters, and for the total number of anchovy larvae retained. Natural mortality and a de- veloping capability for net avoidance account for the decrease in numbers of larvae captured with age; however, the most striking information developed is the decrease in number of larvae retained during the daylight hours.\n20\nThe decrease is not significant for the 3.75 mm class. The diurnal dip is first noticed on the line representing larvae 5.75 mm in length and becomes more pronounced as the larva length increases. It may be sig- nificant to note that eye pigmentation occurs at that stage of development when the larvae is between 3.75 and 5. 75 mm in length.\nSportfish Distribution Induced by Climatic Changes\nThe CalCOFI collections of the larvae of inshore sportfishes are not very large, but the larvae are present in sufficient numbers to permit develop- ment of census estimates of their regional abundance and to indicate trends in their distributions as they were affected by climatic changes.\nTo demonstrate this, Dr. P. Smith and David Kramer, Fishery Biologist at La Jolla, have summarized sportfish larvae data for the cold (1954) and warm (1958) years off Baja California and Southern California. The sum- maries show that the climatic changes induced northward shifts in the distributions of the centers of abundance of the spawning populations of a number of these fishes, e.g. , Cynoscion nobilis (white seabass), Sphyraena argentea (California barracuda) , Seriola dorsalis (California yellowtail) and Paralichthys californicus (California halibut) :\nRegion\nWhite seabass 1954\n1958 (x106)\nCalifornia barracuda 1954 1958 (x106)\nCalifornia yellowtail 1954 (x105\n1958\nCalifornia halibut 1954 (x105\nCentral California\n0.3\nSouthern California\n7\n37.1\n0.18\n1.01\n0.37\n0.20\n1.8\nBaja California\n11\n7\n0.12\n0.29\n0.31\n0.10\n1.8\nSebastian Vizcaino Bay\n0.2\n0.5\n0.03\n0.8\nSouthern Baja California\n5\n1.2\n0.27\n0.83\n0.88\n0.30\n1.4\nCape San Lucas\n18\n0.53\n1958\n21\nCalifornia Cooperative Oceanic Fisheries Investigations (CalCOFD) Review Nears Halfway Mark\nAs the halfway point of the 2-year CalCOFI analysis project approaches, investigation members, led by Dr. Paul Smith, are specifying the docu- mentation of data series, outlining the computation of indices analyzing specific segments of data and projecting postulated relationships to the entire CalCOFI data time series. Having completed a review of historical research activities, methods and publications, the group is now examining the large mass of biological, oceanographic, and meteorological data in preparation for the production of a final report evaluating the success of the CalCOFI program and outlining future research needs.\nTUNA ASSESSMENT AND DEVELOPMENT INVESTIGATIONS\nSecond Trial Anchovy Shipment Overcomes Setbacks and Flaws in System to Successfully Deliver 500 Pounds of Baitfish to Hawaii\nSkipjack tuna fishing by the pole-and-line method in the central and western Pacific is limited in its development by a limited supply of live bait. While skipjack tuna is recognized to be underutilized in these areas, expansion of the fisheries is dependent upon an increase in the available amount of bait. The Honolulu Laboratory is experimenting with one way to augment the supply: shipping in a suitable bait using a baitfish transport tank.\nOn May 15 the team of Roger Green, Leader, Baitfish Program; Donald Aasted, Fishery Methods and Equipment Specialist; and Reginald Gooding, Fishery Biologist, started preparations in Long Beach Harbor for the second trial shipment of anchovy from California to Hawaii. The tank was initially loaded with an estimated 1, 600 pounds of anchovy (228 7-pound buckets) . The fish, 13-15 cm in total length (30 fish to a pound) , were generally larger by 2-3 cm than those obtained in April for the first trial shipment. These fish were reported to be in excellent condition when loaded into the transport tank. It was noted that the new \"vacuum cleaner\" system devised to remove dead bait from the tank -- in effect, a siphon -- was spewing out a large proportion of live fish, but it was hoped that the fish thus extruded were weak and near death, and thus unable to avoid the suction in the system. By the morning of May 18, a carefully measured 773 pounds of fish, both dead and alive, had been expelled from the tank by the vacuum system.\n22\nAt that time an estimated 500 additional pounds of anchovy were added to the tank, bringing the tank population up to an estimated 1, 300 pounds. (Mortality alone can be accurately measured.) When the tanker was moved to the fish-loading point, the filter of the closed system clogged, resulting in the near-suffocation of the entire load. But it rolled aboard Matson's RO/RO (roll-on/roll-off) vessel Matsonia on the following day and the ship departed Long Beach at 1400. Mr. Gooding accompanied the tank, which then held approximately 1, 100 pounds of anchovy.\nAccording to records kept by Mr. Gooding of the daily \"mortality, \" including fish that were still alive when expelled, there were about 150 pounds per day lost during the first 3 days of crossing. On the 4th day, May 23, only 10 pounds of fish were lost. Considering the known mortality, there were roughly 650-700 pounds of anchovy surviving.\nThe Matsonia arrived at Matson's new RO/RO facilities at Sand Island, Oahu at 1400, May 23. Two tugboats, turning the ship around in the narrow basin, stirred up the muddy bottom of the harbor. This water entered the tank through the open system and caused a sharp drop in dissolved oxygen. The condition was corrected by Mr. Gooding with the addition of pure oxygen.\nThe remaining anchovy was estimated at 500 pounds, so the original estimate must have been off by 200 pounds. Estimations of the amount of anchovies continue to be a problem.\nWork has begun on improvements to the bottom vacuum system to reduce live fish entrapment by it.\nA third shipment of live anchovy is planned for next month.\nNorthern Anchovy as Live Bait Produce Good Tuna Catches in Hawaii\nThe anchovy from the first trial shipment, about 12-15 buckets, were used by the commercial fishing vessel Anela May 10 and 11. The anchovy were used to chum and fish yellowfin tuna; 150 fish were caught, weighing an average of 20 pounds. The Anela fishermen were quite enthusiastic about the anchovy, but felt that the skipjack tuna seen on those two fishing days were too small (5-7 pounds) to be fished with anchovy.\nAku boats Angel and Buccaneer were selected by drawing to receive the the anchovy brought to Honolulu on the second trial shipment. The Angel\n23\ntook 20 \"heavy\" buckets of anchovy (estimated 12 pounds to a bucket) on May 25 and, along with 15-20 buckets of nehu, went fishing on May 26, with Research Assistant Thomas Kazama as observer. Beginning at 0610, four schools of medium-sized (8-12 pounds) skipjack tuna were fished using nehu for the most part, for a total catch of 573 skipjack tuna. Fishing was terminated at 1240 with a catch of approximately 8,000 pounds of skipjack tuna. Only about four buckets of anchovy were used during the day, since the schools were small and required relatively more bait to fish. The fishermen felt that anchovy are hardy and could be maintained until large schools of large skipjack tuna were seen.\nThe Angel fished again May 28, chumming with anchovy to draw the schools to the surface and then switching to nehu. Medium and large (over 15 pounds) skipjack tuna were fished for a catch of 5, 500 pounds.\nFurther fishing with the Anela's remaining 14 buckets of anchovy will be monitored through shoreside interviews.\nThe Buccaneer took 18 \"very heavy\" buckets of anchovy on May 26; again Mr. Kazama went along as observer. The boat began fishing at 0845 May 28 off Barbers Point, Oahu, fishing five schools of skipjack tuna and taking 3,640 pounds of fish, mostly 8-15 pounds. During that day, the Buccaneer expended 15 buckets of nehu and three of anchovy. Her practice was similar to that of the Angel, chumming with anchovy until a school of fish responded and chumming with nehu during fishing. Results of this procedure were pronounced excellent.\nIt was noted that many anchovy were picked up by birds as they were chummed. Obviously the larger fish are more visible to birds and to tuna.\nReview is continuing at the Honolulu Laboratory on the manuscript, \"The American Samoa longline fishery, 1966-71\" by Fishery Biologist Howard O. Yoshida. This month Mr. Yoshida completed his third con- tribution to the baitfish workshop, a working paper entitled \"The production of tuna in the eastern Pacific, Hawaiian, and Japanese pole-and-line fisheries.\"\nHawaiian Skipjack Tuna Catch Slightly Below May Averages\nSkipjack tuna catch in the Hawaiian fishery for May 1974 was an esti- mated 412 metric tons, falling below the catch of May 1973 by 36 metric\n24\ntons and below the May average for the years 1948-73 by 92 metric tons. The catch from January through May was estimated at 1, 062 metric tons. This is 134 metric tons above last year's catch for the first 5 months of the year, but 13 metric tons below the long-term average for that period.\nDuring the period April 29 to May 24, Pulou Niuatoa, of the Government of American Samoa, recorded the lengths of 1,564 albacore from 43 vessels and collected 38 sets of catch and effort data. Using the data from 10 vessels, an average size of 90.4 cm was determined, and an albacore catch per 100 hooks of 2.80.\nFishery Analysis Program Emphasis in May is on Data Organization and Manuscript Preparation\nThe Fishery Analysis Program under Dr. Robert A. Skillman at the Honolulu Laboratory, carries out the objectives of the task Tuna Monitoring and Assessment, Pacific and Indian Oceans, with major emphasis on stock assessment, fishery monitoring, and fishery liaison aspects of the SWFC's skipjack tuna development plan. The status of exploited stocks of other tuna and tunalike resources of U.S. concern are also monitored through the systematic collection and analysis of fisheries data. The three sub- groups of the program are fishery liaison and monitoring, assessment of skipjack tuna resources, and assessment of other tuna and tunalike resources .\nRichard N. Uchida, Fishery Biologist in the Honolulu Laboratory's Fishery Analysis Program, has resumed his literature search for data and informa- tion on the development or potential development of skipjack tuna fisheries, particularly in the southwest Pacific and around the islands of the Indian Ocean which are contiguous to the southwest Pacific. Mr. Uchida is also involved in preparing a report for the IOFC/IPFC working party meeting. He has completed two papers for the Tuna Baitfish Workshop, June 4-6 in Honolulu. The first, entitled \"The fishery for nehu, Stolephorus purpureus, a live bait used for skipjack tuna fishing in Hawaii,\" discusses the baiting localities in the Hawaiian Islands, the methods used in capturing bait during the day and at night, and the production of nehu from the major baiting sites.\nIn 1960-72, statewide bait production varied between 22,849 buckets and 42,098 buckets, and averaged 33,658 buckets. (A bucket of bait equals 3.5 kg.) In general, day baiting effort showed a downward trend from 1960 to 1967, trending upward from 1968 to 1972. Night baiting effort, on the\n25\nother hand, rose sharply from 1960 to a peak in 1965, then declined steadily and dipped below the 1960 level in 1969-72. The second paper, entitled \"A review of catch and effort statistics in fisheries for live bait in the Pacific Ocean,\" reviews the available published information on catch and effort expended by bait boats in capturing bait- fishes in the eastern Pacific, Hawaiian, and Japanese pole-and-line fisheries .\nThe manuscript \"Von Bertalanffy growth curves for striped marlin, Tetrapturus audax, and blue marlin, Makaira nigricans, in the central North Pacific\" by Robert A. Skillman and Marin Y. Y. Yong, has been reviewed internally and is now being reorganized following comments of the reviewers. Tests of homogeneity of length-frequency distributions of the cohorts are being made to verify the validity of using a dynamic pool steady state.\nMarian Y. Y. Yong, Mathematician in the Fishery Analysis Program, has edited and placed on computer tape length-frequency data of Hawaiian skipjack tuna. These data will be used to obtain estimates of mortality rates and von Bertalanffy growth parameters following the separation of age groups on a cohort basis.\nEXECUTIVE OFFICER NAMED FOR SOUTHWEST FISHERIES CENTER\nOn March 31, Mr. Benjamin F. Remington was named Executive Officer for the Southwest Fisheries Center where he will be responsible for financial management and administration of the Center's three laboratories located in Honolulu, Hawaii; La Jolla, California; and Tiburon, California. These laboratories carry out fisheries research programs on the tunas of the Atlantic and Pacific Oceans, fisheries of the California Current and the Pacific coastal zone, and porpoises of the eastern tropical Pacific.\nMr. Remington, 41, is a native of Alexandria, Virginia. He graduated from the University of Colorado in Boulder, Colorado, with a degree in Business Administration. He comes to the Center with 22 years of ex- perience in government service. Four of these years were spent in the Air Force in meteorology and 18 years in the Civil Service, including 4 years with the Antarctic research project of the Weather Bureau, wintering over at Little America IV and the South Pole. Mt. Remington, in Queen Victorialand, is named for him. Most recently, Mr. Remington held the position of Financial Analyst with the NMFS Plans and Policy Development staff in Washington, D.C.\nMr. Remington and his wife, the former Nancy Byrne, have five children.\n26\nPUBLIC AFFAIRS\nMay 13 - Honolulu Laboratory Director Shomura attended a pre-public showing of the week-long Sea Grant-sponsored Makahiki Kai (Festival of the Sea) , held at the Honolulu International Center May 14-17. Sea Grant personnel were generous in their praise of the popular NMFS contribution, one of many exhibitions offered by federal, state, and city and county organizations, marine-related departments of the University of Hawaii, and business firms. Makahiki Kai was conceived in recognition of the need for more readily accessible infor- mation about the ocean, its resources, and its relation to the people of Hawaii, and attracted over 13,000 viewers, many of whom were school children in the lower grades .\n21\n- Dr. Nathan Clark, Meteorologist, lectured to 40 students from San Dieguito High School and their instructor, Mr. Robert Zakowski, on research conducted at the Southwest Fisheries Center.\nPress Releases from SWFC\nMay 3\n- Issued for release to West Coast newspapers, \"Executive Officer Named for Fisheries Center.\"\n20 - Issued by Honolulu Laboratory, \"Baitfish Workshop to be Held in Honolulu.\"\nSEMINARS AND LECTURES\nMay 1 Mr. Ralph Bates, Systems Analyst at the La Jolla Laboratory, - presented an informal lecture on data base structure, elements and banks.\n15 Mr. John E. Tyler of the Scripps Institution of Oceanography, - spoke on \"Some thoughts on light measurement in biological oceanography.\"\n27\nMEETINGS AND TRAVEL\nMay 3\n- A second baitfish committee meeting was called at the Honolulu Laboratory by Mr. Shomura to discuss recent progress in the bait transport project, and to obtain views of the committee as to future plans and a course of action. Committee members in attendance were Dr. John Craven, Dean, Marine Programs, University of Hawaii; Dr. Jack Davidson, Director, Sea Grant Program, U.H .; Frank Goto, Manager, United Fishing Agency; Ms. Margaret Markham, Tunaboat Owners' Association; Jay Puffinburger, General Manager, Bumble Bee Seafoods, Inc .; Michio Takata, Director, State Fish and Game Division; Dr. Albert Tester, representing PIDC; and laboratory personnel Roger Green, Robert Iversen, and Tamio Otsu.\n6 Mr. I. Barrett, Deputy Director, attended the monthly - meeting of the San Diego/La Jolla Underwater Park Advisory Committee, of which he is a member.\n6-7 - Dr. Brian Rothschild, Center Director, traveled to Monterey, California for discussion with the staff of the Pacific Environmental Group.\n8 Drs. R. Lasker and P. Smith attended a CalCOFI meeting - held at the La Jolla Laboratory.\n- Mr. Roger Green and Don Aasted of the Honolulu Laboratory travelled to San Francisco to scout for a surplus trailer- tank for conversion to a second transport unit.\n9 Dr. Barham attended a public hearing on the NMFS Draft - Environmental Impact Statement, at the Customs Building, Terminal Island.\n9-10 - Dr. Rothschild visited the Tiburon Laboratory, Tiburon, California for consultations with the Acting Director and staff of the laboratory.\n17 Mr. Shomura accompanied Honolulu Laboratory nominees Ms. Sally Kuba and James Uchiyama to the Federal Execu- tive Board's Employee of the Year luncheon, held in the Coral Ballroom of the Hilton Hawaiian Village.\n28\nMay 17 - A Marine Research Committee meeting was held at the Southwest Fisheries Center. It was attended by Drs. Rothschild, Lasker, Smith, and Lt. R. Hewitt of the NOAA Corps.\n21\n- Mr. Shomura travelled to Los Angeles to meet with Cali- fornia Fish and Game personnel to review the baitfish transport project, and to visit the Regional Office where he discussed the assistance of Regional Sea Food Consumer Specialist Ms. Doris Robinson to the University of Hawaii's Sea Grant Program. Mr. Shomura proceeded to La Jolla to attend the Townsend Cromwell refurbishing meeting.\n23 Mr. Howard W. Pollock, Deputy Administrator of NOAA, Washington, D.C., spoke briefly at a general staff meet- ing held in the Honolulu Laboratory's seminar room.\n23-24 - Dr. Rothschild attended his first meeting as a member of the Ocean Policy Committee of the Ocean Affairs Board (National Academy of Science-National Research Council Commission on Natural Resources) , in Washington, D.C.\nMay 26- - June 1\nDr. William Fox attended the Inter-American Tropical Tuna Commission meeting in Washington, D.C. on enforcement of regulations and alternative tuna regulatory systems as a Technical Advisor to the U. S. Commissioners.\nVISITORS\nHonolulu Laboratory\nMay 13\n- Mr. Howard W. Pollock, NOAA, Washington, D.C.\n17-19\n- Dr. Keiji Nasu, Oceanographer, Far Seas Fisheries Research Laboratory, Shimizu, Japan.\n20 Mr. Keiichiro Mori, visiting scientist, Far Seas - Fisheries Research Laboratory, Shimizu. Mr. Mori will spend 1 month working on larval fishes with Mr. Walter Matsumoto.\n22 - Ms. Sophia Fei Hu, Taiwan, ROC.\n29\nLa Jolla Laboratory\nMay 1 Mr. G.V. Howard, Regional Director, NMFS Southwest - Region, Terminal Island, California.\n- Messrs. G. Irving and R.H. Schneider, Integrated Sciences Corp. , Santa Monica, California.\n1-2\n- Messrs. Jack Wise and Ken Sherman, NMFS, Washington, D.C.\n:3\n- Mr. Paul E. LaViolette, U.S. Naval Oceanographic Office, Washington, D.C.\n6\n- Mr. William Clark, University of Washington, rep- resenting the U. S. Marine Mammal Commission, to discuss data and statistical problems related to estimates of porpoise mortality, distribution and density.\n10\nMs. Jean Federowski, University of Arizona.\n- Dr. Chris Matthews, School of Marine Sciences, Ensenada, Baja California.\n13-14 Mr. Evan Stoll, General Accounting Office, to consult with staff on underutilized fish species of the California Current.\n15-17\n- Dr. S. Jukic, Institute of Oceanography and Fisheries, Split, Yugoslavia.\n16-17\n- Mr. Keiji Nasu, Far Seas Fisheries Research Laboratory, Japan.\n- Mr. Mike Reeve, University of Miami.\n20 Dr. Douglas R. McLain, NMFS Pacific Environmental Group, Monterey, California.\n23\nDr. V. McClure, Tiburon Laboratory .\n30\nMay 23-24 - Admiral Lippold and Messrs. Shek, Hitz, Pacific Marine Center, Seattle, Washington; R. Wolf, National Ocean Survey, Washington, D.C .; and Messrs. E. Lee and R. Shomura, Honolulu Laboratory , to review ship use and scheduling.\n24\n- Dr. R. W. Kinney, National Academy of Sciences, Washington, D.C.\n28\n- Mr. M.E. Gurtz, U. S. Army Environmental Hygiene Agency, Aberdeen Proving Grounds, Maryland.\n31\n- Dr. Douglas Chapman, University of Washington; Dr. Ken Norris, UC, Santa Cruz; Dr. G. Bartholomew, UCLA; members of group of Scientific Advisors to the U.S. Marine Mammal Commission, to attend a technical meeting on a program for analysis of population dynamics of porpoises.\nTiburon Laboratory\nMay 1\n- Howard Smalhersen, College of Marin.\n2 Dr. Bizo Maeda, Nagoya University of Mexico City.\nDr. Guillermo Carrillo, National Agriculture University, Mexico City.\n7\n- F. McDermott, L. Dillon, State Water Quality Control Board.\n9\n- Dr. Brian Rothschild, Director, Southwest Fisheries Center.\n- Dr. Lee Alverson, NMFS, Seattle.\nMr. Gerry Howard, NMFS, Terminal Island.\n- Mr. Harry Rietze, NMFS, Juneau, Alaska.\n22\n- R. Brown, San Francisco Tyee Club.\n30\nC. Dewees, U.C. Davis, Sea Grant.\n- John Spinelli, NMFS, Seattle.\n31\nPERSONNEL ACTIONS\nMay 5 Lt. Bruce Crumley, NOAA Corps Officer, - Promotion\nHonolulu\n7\n- Mary Ann Clark, Clerk-Steno, Reduction in Force La Jolla\n9\n- Robert Butler, Biological Technician, Temporary Appointment - La Jolla\n- Dana Seagars, Biological Aid, Temporary Appointment La Jolla\n10 Nina D. Hirsch, Biological Laboratory - Technician, Temporary Appointment - Tiburon\n13 Iris E. Ebisuzaki, Clerk Typist, - Temporary Appointment, NTE 30 days - Honolulu\n14 Robert Bourke, Biological Aid, Termination, - Lack of Work - La Jolla\n31\n- Manuel Lozano, Laborer, Resignation - La Jolla\nTraining\nMs. Lorraine Downing, Editorial Assistant at the La Jolla Laboratory, attended a \"Better English Workshop\" May 7-10 at the Charter Oil Building, San Diego, California, sponsored by the Civil Service Commission.\nMs. Joanne Webber, Editorial Clerk, La Jolla Laboratory, attended a clerical supervision course entitled \"Creating a Winning Environment\" in San Francisco, California May 20-22, sponsored by the Civil Service Commission.\n5\n32\nHONORS AND AWARDS\nHonolulu Laboratory\nMay 31\n- Ms. Sally Kuba, laboratory nominee for Federal Woman Employee of the Year, was chosen by Honolulu radio station KGU as their \"Ms. in Biz\" for May 31.\n- Donald C. Aasted, 15-year Length-of-Service award (effective June 16, 1974) .\n- Melvin J. Dutro, Special Achievement Award.\nIrene H. Toyomura, Outstanding Performance Rating.\nLucille T. Tsukano, Special Achievement Award.\n- Carole A. Yukihiro, Special Achievement Award.\nEV\nN B\nIC\n1776-19\n33\nOTMENT\nART\nMERCE\nUNITED\nED STATE\nSOF AMAL\nU.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration NATIONAL MARINE FISHERIES SERVICE\nPage 1 of 2 June 4, 1974 Ralph B. Bates\nPROJECT MILESTONES\nFISCAL YEAR 74/75\nMONTH >\nMAY JUNE WEEK-D 1 2 3 4 5 1 |2 |3 |4|\nJULY 1 2 3 4\nAUG 12345\nMONTH / WEEK\nMILESTONES\n-\nNW\nSW-04-031 \"STD\" DATA REVISE SYSTEM -- LYNN\nDR\nSW-06-011 WEATHER DATA -- EBER\nDR\nSW-06-041 \"XBT\" DATA REDUCTION -- SAUR\nDR\nSW-11-011-1 ADDITIONAL PORPOISE SETS DATA BASE\n0\nDR\nSW-11-011 DATA BASE REPORTS AS REQUIRED -- PERRIN.\nT. SMITH & OTHERS.\nDR\nSW-11-012 OBSERVER MAMMAL SETS EDIT -- PERRIN, SMITH\nCANCELLED\nDR\nSW-11-012 OBSERVER MAMMAL SETS DATA BASE -- PERRIN\nO\n34\nDR\nSW-11-012 OBSERVER MAMMAL SETS REPORTS -- PERRIN\nRB\nSW-11-013 OBSERVER PORPOISE LIFE HISTORY -- PERRIN SW-16-011 20 YEAR CALCOFI DATA-SIZED LARVAE FOR\n3\nNW\nSW-16-011 CORRECT ERRORS IN 1961-1969 DATA-SMITH\"\nNW\nSW-16-011 20 YEAR CALCOFI DATA-SIZED LARVAE FOR\n1951-1960-CREATE BASIC DATA FILE-SMITH\n3\nSTATUS\nSTATUS COMMENTS: 1. DATA BASE HAS BEEN CREATED FOR THE PORPOISE SET LOGS. THIS PROJECT IS REQUIRED TO PROCESS\nADDITIONAL CRUISES AND TO TRAIN PERSONNEL IN DATA BASE PROCEDURES. 2. PROJECT CANCELLED\nDITING OF DATA WILL BE DONE UNDER DATA BASE PROCEDURES. 3. ALL PROGRAMS COMPLETED-FINAL COMPILATION OF MASTER\nFILE WILL BE DONE WHEN ALL DATA HAS BEEN EDITED_AND CORRECTED. MILESTONE LEGEND: STATUS LEGEND: PLANNED O REVISED 4 ON SCHEDULE MAY SLIP BEHIND SCHEDULE\nCOMPLETED .\n- - N\nA\nDATA HAS NOT\nBEEN\nRECEIVED\nNW\n1961-1969 - CREATE BASIC DATA FILE\n1\nAAAA A\nPROJ. TITLE\nAMERICA\nMENT OF C\nUNITED\nNERICA CO STATES OF AN\nU.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration NATIONAL MARINE FISHERIES SERVICE\nPage 2 of 2 June 4, 1974 Ralph B. Bates\nPROJECT MILESTONES\nFISCAL YEAR 74/75\nMONTH >\nMAY\nJUNE\n· JULY\nAUG\nMONTH / WEEK\nWEEK-D123451234\n1234 12 3 45\nPROJ. TITLE\nMILESTONES\nNW\nSW-16-011 CORRECT ERRORS IN 1951-1960 DATA-SMITH\nQ\nO\n3\nNW.\nSW-16-011 CREATE DATA BASE 1951-1969 AND PREPARE\n4\nNW\nSW-16-012 20 YEAR CALCOFI UNSIZED & EGGS -- SMITH\nRB\nSW-16-015 20 YEAR CALCOFT REQUIREMENTS-NETWORK\n& PERT CHARTS -- SMITH & HEWITT\nNW\nSW-16-014 CALCOFI PUBLICATIONS 1960-1969 -- KRAMER\nRB\nSW-19-011 MULTIPLE REGRESSION INFONET -- VROOMAN\nRB\nSW-30-062 SYSTEMS ANALYSIS -- SQUIRE\nBROJ\nLECT\nNOT DEFINED\nRB\nSW-36-011 DATA ELEMENT/DIRECTORY -- BATES\ne\nRB\nSW-36-014 CATALOG OF PROGRAMS -- BATES\nRB\nSW-36-015 STANDARD OPERATING PROCEDURES AND\nSYSTEM/PROGRAM DOCUMENTATION\n4\nRB\nSW-36-017 SWFC MAILING LISTS-SYSTEMS ANALYSIS\nNW\nSW-36-018 SWFC TAPE LIBRARY SYSTEM & CATALOG\nSTATUS\nSTATUS COMMENTS: 3. ALL PROGRAMS COMPLETED-FINAL COMPILATION OF MASTER FILE WILL BE DONE WHEN ALL DATA HAS BEEN EDITED AND CORRECTED. 4. PROGRAMMING COMPLETED-CANNOT SCHEDULE BECAUSE OF UNKNOWN AMOUNT OF WORK REQUIRED FOR\nEDITING AND CORRECTING 20 YEARS OF DATA. 5. PRELIMINARY ANALYSIS COMPLETED-FINAL SCHEDULE DEPENDENT UPON COMPLETION OF PROJECT SW-16-011. MILESTONE LEGEND: STATUS LEGEND:\nPLANNED O REVISED\nON SCHEDULE MAY SLIP BEHIND SCHEDULE\nCOMPLETED\n5 5\n35\nTABLES 1-2-3-4 -- SMITH\nRECEIVED JUN 4 : 1974\nTIBURON MARINE LABORATORY",
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                    "content": "TED STATES OF AME",
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                    "content": "HONOLULU",
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                    ]
                },
                {
                    "content": "S",
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                {
                    "content": "LA JOLLA",
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                {
                    "content": "TIBURON",
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                {
                    "content": "SOUTHWEST FISHERIES CENTER",
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                {
                    "content": "MONTHLY REPORT-MAY 1974",
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                    "content": "Research Highlights",
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                    ]
                },
                {
                    "content": "Page",
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                {
                    "content": "· Publications",
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                    ]
                },
                {
                    "content": "1",
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                    ]
                },
                {
                    "content": ". Albacore Fishery Expected to be Centered North, But Outlook off",
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                },
                {
                    "content": "California Improved.",
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                    ]
                },
                {
                    "content": "3",
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                {
                    "content": ". Cooperative Arrangements for Silver Salmon Pen Rearing Proceeding. .",
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                {
                    "content": "5",
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                },
                {
                    "content": ". Technical Meeting on Program for Analysis of Porpoise Population",
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                {
                    "content": "Dynamics Held at Southwest Fisheries Center.",
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                {
                    "content": "9",
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                },
                {
                    "content": "· Uptake and Accumulation of Crude Oil Components by Juvenile",
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                    "content": "Herring Studied",
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                {
                    "content": "11",
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                    ]
                },
                {
                    "content": ".",
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                },
                {
                    "content": "NOAA's National Weather Service Augments Participation in",
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                    "content": "FAX Program at La Jolla",
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                {
                    "content": "12",
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                    "content": ". Preliminary Population Dynamics Analyses Completed on White",
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                    "content": "Seabass",
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                    "content": "14",
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                {
                    "content": ".",
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                {
                    "content": "Pacific Mackerel Successfully Reared from Egg through Metamorphosis",
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                    "content": "on Laboratory-Cultured Food at La Jolla.",
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                    "content": "19",
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                {
                    "content": ".",
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                {
                    "content": "Shifts in Recreational Fish Distribution Induced by Climatic Changes.",
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                    "content": "21",
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                    "content": ". Second Trial Anchovy Shipment Successfully Delivers 500 Pounds",
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                    "content": "of Baitfish to Hawaii",
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                    "content": "22",
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                    "content": "Northern Anchovy as Live Bait Produce Good Tuna Catches in Hawaii.",
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                    "content": "23",
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                    "content": "NOAA/NMFS",
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                    "content": "CENTER,",
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                    "content": "JOLLA,",
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                {
                    "content": "MONTHLY",
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                    "content": "REPORT-MAY",
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                },
                {
                    "content": "Alvariño, Angeles. 1974. Distribution of siphonophores in the regions",
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                    "content": "adjacent to the Suez and Panama Canals. Fishery Bulletin (U. S.)",
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                    "content": "72 (2): 527-546.",
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                    "content": "In this paper, distribution is described of siphonophores in",
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                    "content": "the regions adjacent to the Suez and Panama Canals based",
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                    "content": "on material collected by Israeli cruises in the eastern",
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                    "content": "Mediterranean and the Red Sea (Gulf of Elat) , and by",
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                    "content": "Scripps Institution of Oceanography Expeditions in the",
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                    "content": "Caribbean and the Pacific regions adjacent to the Panama",
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                    "content": "Canal. Published information on the distribution of",
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                    "content": "siphonophores in those areas and in adjacent regions is",
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                {
                    "content": "included as are distributional tables and maps.",
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                    "content": "MacGregor, John S. 1974. Changes in the amount and proportions of",
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                    "content": "DDT and its metabolites, DDE and DDD, in the marine environ-",
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                    "content": "ment off southern California, 1949-72. Fishery Bulletin (U. S.)",
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                {
                    "content": "72 (2) : 275-293.",
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                    "content": "This paper is about the contamination of the ocean and its",
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                    "content": "biota off southern California by the pesticide, DDT. The",
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                    "content": "accumulation of DDT and the changes in proportions of DDT",
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                {
                    "content": "and its metabolites in the ocean are described for the years",
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                    "content": "1949 to 1972, especially as they are reflected in the myctophid",
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                {
                    "content": "fish, Stenobrachius leucopsarus. This time period was",
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                    "content": "characterized by continuous dumping of DDT wastes into the",
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                    "content": "ocean by a large manufacturer of DDT and the cessation of",
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                    "content": "pollution problem in the marine environment are discussed.",
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                    "content": "--",
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                {
                    "content": "Review.",
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                    "content": "2",
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                {
                    "content": "Moser, H. Geoffrey and Elbert H. Ahlstrom. 1974. Role of larval stages",
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                {
                    "content": "in systematic investigations of marine teleosts: The Myctophidae,",
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                },
                {
                    "content": "a case study. Fishery Bulletin (U.S.) 72(2): 391-413.",
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                    "content": "The lanternfish family Myctophidae is the most widespread",
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                    "content": "family of midwater fishes in the world ocean. As presently",
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                    "content": "recognized it contains about 30 genera and 300 nominal",
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                    "content": "species. Their larvae are highly prominent in the plankton",
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                    "content": "and make up about 50% of all larvae taken in open-ocean",
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                    "content": "plankton tows.",
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                    "content": "Studies of myctophid larvae, on a worldwide basis by Drs.",
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                    "content": "Moser and Ahlstrom have demonstrated that characters of",
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                },
                {
                    "content": "the larval stages of lanternfishes are of great utility in",
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                {
                    "content": "systematic analysis. The genera and species can be recog-",
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                    ]
                },
                {
                    "content": "nized on the basis of eye and body shape, the shape and",
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                },
                {
                    "content": "length of the gut, pigment pattern, and the sequence of photophore",
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                    ]
                },
                {
                    "content": "development. In this paper the larvae of 55 species representing",
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                {
                    "content": "24 genera are illustrated and used to demonstrate the usefulness",
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                {
                    "content": "of larvae in understanding the relationships of species within",
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                    "content": "genera.",
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                {
                    "content": "Rothschild, B.J. 1973. Questions of strategy in fishery management",
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                },
                {
                    "content": "and development. Journal of the Fisheries Research Board of",
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                },
                {
                    "content": "Canada, 30(12) , Part 2: 2017-2030.",
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                    "content": "In this paper, Dr. Rothschild defines the subject of fishery",
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                    "content": "management and development, and explores the thesis that",
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                    "content": "to make significant advances in fishery management and de-",
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                {
                    "content": "velopment there is a need to be concerned with constructing",
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                    "content": "and investing in institutions that are capable of asking the",
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                    "content": "right questions in the area of resource management and de-",
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                    "content": "velopment; developing the most efficient means for making",
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                    "content": "proper decisions relevant to these questions; and developing",
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                {
                    "content": "the capability to carry out activities which will facilitate",
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                },
                {
                    "content": "these decisions. The most striking concept offered in this",
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                    "content": "paper is that fishery management and development seem to",
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                    "content": "be more preoccupied with tactics than with strategy.",
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                },
                {
                    "content": "Approved by Center Director",
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                },
                {
                    "content": "\"Yield per recruit for multi-gear fisheries (MGEAR) , Burroughs 6700,",
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                {
                    "content": "FORTRAN IV\" by William H. Lenarz. For publication in the Transactions",
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                {
                    "content": "of the American Fisheries Society -- Note.",
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                {
                    "content": "\"Schooling in the ecology of fish\" by John R. Hunter. For publication",
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                    "content": "in the Transactions of the American Fisheries Society -- Review.",
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                    "content": "2",
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        {
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                    "content": "ALBACORE",
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                    "content": "FISHERY",
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                    "content": "INVESTIGATIONS",
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                    "content": "Fishery",
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                    "content": "to",
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                    "content": "be",
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                    "content": "Centered",
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                    "content": "Outlook",
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                    "content": "60% of the catch will be taken in waters north of San Francisco and 40%",
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                    "content": "in waters to the south. Catches off California are expected to improve",
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                    "content": "this year over 1973 when the catch was divided about 80% north of San",
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                    "content": "Francisco and 20% south, with most of the catch coming from waters",
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                    "content": "off the Pacific Northwest. If 1974 is an \"average year,\" a total of",
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                    "content": "20,050 to 30, 350 tons of fish could be expected to be landed. This",
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                    "content": "estimate of landings is based on the mean and standard deviation, 25, 200",
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                    "content": "and 5, 150 tons, respectively, of West Coast albacore catches for the",
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                    "content": "period 1964-1973. The increase in fleet capacity that occurred in recent",
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                    "content": "years and the possibility of an early start of the fishery this year could",
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                    "content": "boost the 1974 catch above the \"average.\" An accurate pre-season",
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                    "content": "prediction of how much fish will be caught during the 1974 season is",
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                    "content": "difficult to make because of insufficient knowledge concerning the",
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                    "content": "population dynamics of the North Pacific albacore and fish-ocean",
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                    "content": "relationships. The outlook for albacore sportsfishing off southern",
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                    "content": "California is good, based on offshore scouting reports.",
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                    "content": "The forecast of the general distribution of the albacore fishery is based",
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                    "content": "on predictive indices developed at the La Jolla Laboratory, which relate",
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                    "content": "north-south geographic variations in the fishery with oceanographic and",
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                    "content": "meteorological conditions during the spring months in certain offshore",
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                    "content": "waters through which albacore migrate in their travel to the waters off",
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                    "content": "North America.",
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                    "content": "Early Albacore Fishing Results Indicate Change in Catch Pattern",
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                    "content": "and Abundance",
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                    "content": "The 1974 cooperative NMFS-American Fisherman's Research Foundation",
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                    "content": "(AF RF) albacore-oceanography survey began in late May. The research",
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                    "content": "vessel, David Starr Jordan, with Oceanographer R. Lynn of the La Jolla",
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                    "content": "Laboratory as scientific leader, left San Diego on May 20 and began",
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                    "content": "working with the five AFRF-chartered albacore jigboats on June 4. Early",
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                    "content": "previous 2 years. Albacore catches also reflected the complexity of the",
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                    "content": "frontal system; catches were scattered and good fishing areas did not",
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                    "content": "remain consistent. Nevertheless, fish were caught earlier closer to",
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                    "content": "shore, and in larger numbers this year than last year.",
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                },
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                    "content": "Dr. Michael Laurs, leader of the Albacore Fishery Investigations, with",
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                },
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                    "content": "the assistance of Mr. Lynn and Dr. Clark, Meteorologist, completed a",
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                    "content": "document on albacore tuna forecasting and monitoring at the La Jolla",
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                    "content": "Laboratory which will form the basis of a manuscript for publication.",
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                    "content": "COASTAL FISH COMMUNITIES INVESTIGATIONS",
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                    "content": "Differing Day-Night Patterns of Activity and Distribution of Planktivorous",
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                    "content": "recreational fishes, Dr. Edmund Hobson, Project Leader, has completed",
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                    "content": "another segment of a study of the relationships between planktivorous",
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                    "content": "fishes and plankton in nearshore waters. During May, as during earlier",
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                    "content": "collecting periods, the nearshore plankton were sampled at different",
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                    "content": "levels of the water column, day and night, at both new and full moon.",
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                    "content": "Concurrent with both day and night plankton collections, and in the same",
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                    "content": "location, the activities of fishes that feed on plankton were observed,",
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                    "content": "and specimens were collected for study of food habits. These fishes",
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                    "content": "are: the olive rockfish, Sebastes serranoides; the salema, Xenistius",
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                },
                {
                    "content": "californiensis; the queenfish, Seriphus politus; the surf perch,",
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                    "content": "Hyperprosopon argenteum; the kelp perch, Brachyistius frenatus; and",
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                },
                {
                    "content": "the blacksmith, Chromis punctipinnis. All of these fishes, which are",
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                    "content": "important sport species or prey of sport species, are being found to have",
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                    "content": "strikingly different activity and distribution patterns between day and",
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                    "content": "night, and these are being found to relate to equally striking day-night",
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                    "content": "differences in the composition and distribution of the plankton.",
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                },
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                    "content": "Dr. William McFarland, Cornell University, joined the Tiburon Laboratory",
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                    "content": "group at Santa Catalina Island for 2 weeks during May. This joint effort",
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                    "content": "will collect data and specimens for study of the visual pigments of kelp",
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                {
                    "content": "bed fishes as they relate to activity patterns of these fishes and to the",
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                {
                    "content": "spectral composition of light in the waters of their habitat.",
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                    "content": "4",
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                    "content": "COASTAL",
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                },
                {
                    "content": "FISHERIES",
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                },
                {
                    "content": "INVESTIGATIONS",
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                    }
                },
                {
                    "content": "Arrangements",
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                    }
                },
                {
                    "content": "Silver",
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                },
                {
                    "content": "Salmon",
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                    }
                },
                {
                    "content": "Pen",
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                {
                    "content": "Rearing",
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                },
                {
                    "content": "Proceeding",
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                    "content": "This",
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                {
                    "content": "project",
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                    "content": "determine",
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                    "content": "the sport and commercial fisheries. This initial rearing will provide",
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                    "content": "adult portion of their lives at sea. If they remain in San Francisco Bay,",
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                    "content": "a new sport fishery will be created.",
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                    "content": "The silver salmon, from California Department of Fish and Game's Mad",
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                    "content": "River hatchery, will be inoculated for vibrio and tagged with coded wire",
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                    "content": "tags at the hatchery during June. Shortly thereafter, they will be trans-",
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                    "content": "ported to Tiburon and placed in a floating pen to be fed and nurtured.",
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                    "content": "Release is expected to take place this fall.",
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                    "content": "The project is an excellent example of cooperation between a university,",
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                    "content": "a sportfishing club, and state and federal fisheries agencies.",
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                    "content": "Fishery Development:",
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                    "content": "Task at the Tiburon Laboratory reports that the fishing vessel Lady Olga",
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                    "content": "arrived in San Pedro on May 12 with a full load of 35 tons of ground and",
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                    "content": "frozen pelagic red crab (Pleuroncodes planipes) . The trip was the fourth",
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                    "content": "for the vessel and brought its total catch to about 115 tons. The catch",
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                    "content": "was bought by the Lummi Indian Tribe and Domsea Farms. Both will include",
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                {
                    "content": "the ground crabs in the diet of pen-reared salmon to color the flesh. The",
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                    "content": "Small Tribes Organization of Western Washington, an organization of",
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                    "content": "Indian tribes, is obtaining good results with a feed mixture of Oregon",
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                    "content": "moist pellets, red crabs, and shrimp waste. The added coloring of salmon",
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                    "content": "flesh achieved reportedly raises the value of the salmon by about 25 cents",
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                    "content": "per pound.",
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                    "content": "Twenty",
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                    "content": "products: A large potential market exists in Japan,",
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                    "content": "but price and technological problems are obstacles",
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                    "content": "to immediate use. A local fishcake manufacturer also",
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                    "content": "would use red crab if a steady supply were available.",
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                    "content": "Chitosan and chitin, from the exoskeleton: This use",
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                    "content": "holds good potential for large-scale use of red crabs,",
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                    "content": "when coupled with any one of the above uses for the",
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                {
                    "content": "oils and proteins.",
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                    "content": "Research on products and market potential has been carried out at the",
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                    "content": "Pacific Food Products Technology Laboratory and at the Tiburon Laboratory.",
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                    "content": "with the fishermen in developing fishing gear and techniques, improving",
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                    "content": "handling and storing methods, and acting as liaison between the producers",
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                    "content": "and potential users. We have loaned fishing gear and a grinder to the",
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                    "content": "Lady Olga and have accompanied the vessel on two fishing trips.",
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                    "content": "The goal of the project is to come up with a fishing and handling system",
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                    "content": "that would enable fishermen to catch red crabs profitably at a price low",
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                    "content": "of Sciences. Reviewer's suggestions are now being incorporated into the",
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                    "content": "FISH ENVIRONMENT INVESTIGATIONS",
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                    "content": "Tuna Behavioral Thermoregulation System Now Complete Except for",
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                    "content": "A unique apparatus for the study of tuna behavior in temperature gradients",
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                    "content": "approximating those of the open ocean has been developed by Dr. Neill",
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                    "content": "and Fishery Biologist Dr. Andrew Dizon of the Honolulu Laboratory. Termed",
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                    "content": "Island Wake Data Analysis Nears Completion",
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                    "content": "banks, and seamounts on the nearby ocean, influence which might account",
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                    "content": "for the association of many high seas fisheries with such features. The",
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                    "content": "working hypothesis is that currents, as they flow past these obstacles,",
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                    "content": "generate mixing and local upwelling that enriches the water downstream,",
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                    "content": "and that this enrichment eventually attracts large predators of interest",
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                    "content": "to fishermen.",
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                    "content": "Data from the first Line Island field study have been almost completely",
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                    "content": "analyzed, and a report is being prepared. Data from the second cruise",
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                    "content": "are still being worked on. NOAA Corps Officer Lt. Bruce Crumley, assigned",
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                    "content": "at present to the Honolulu Laboratory, has been analyzing the data from",
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                    "content": "five Townsend Cromwell equatorial cruises upstream of the Line Islands",
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                    "content": "Commission,",
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                    "content": "Recreational Fisheries Report Completed",
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                    "content": "habitats in the State of Hawaii for the Hawaii Water Resources Regional",
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                    "content": "Study. He also completed a paper for the baitfish workshop entitled",
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                    "content": "\"Desired characteristics of a bait for skipjack tuna.\" Mr. Yuen was",
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                    "content": "of June 1.",
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                    "content": "tuna industry, unions, and major conservation groups such as \"Project",
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                    "content": "in mid-June to discuss revisions in the DEIS with the staff of the Marine",
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                    "content": "Mammal Investigations.",
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                    "content": "Scientific Advisers to the U.S. Marine Mammal Commission, the tuna",
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                    "content": "will be made to come up with valid conclusions and an October report on",
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                    "content": "The La Jolla Laboratory has been sending trained porpoise observers to",
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                    "content": "sea on tuna seiners of the U. S. fleet to collect information on porpoise",
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                    "content": "gear and techniques. As of this writing 34 observer trips have been com-",
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                    "content": "pleted within the Commission Yellowfin Regulatory Area (CYRA) in 1974.",
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                    "content": "source of information in estimating numbers of porpoise killed in the tuna",
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                    "content": "1974 yellowfin tuna fishing season. Dr. Eric Barham, Porpoise Program",
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                    "content": "Manager, is still continuing his efforts to obtain rides for six more",
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                    "content": "observers to accompany tuna seiners on trips outside the CYRA.",
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                    "content": "returned from second trips as a strong school fish (tuna unaccompanied",
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                    "content": "by porpoise) run has developed. Preliminary figures from the 1974 por-",
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                    "content": "poise observer data indicate that the total mortality of porpoise in 1974",
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                    "content": "In order to meet the October 1974 deadline for a \"final\" report on the",
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                    "content": "of manpower in the Marine Mammal Investigation at La Jolla have been",
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                    "content": "mobilized to process and analyze the data on porpoise resulting from the",
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                    "content": "observer cruises, aerial survey, marine mammal logs, Jordan cruise,",
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                    "content": "and others. Dr. Tim Smith, Fishery Biologist, who has the primary",
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                    "content": "responsibility",
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                    "content": "modify the proposed gear regulations as set forth by NMFS on April 5.",
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                    "content": "PHYSIOLOGY INVESTIGATIONS",
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                    "content": "Uptake and Accumulation of Crude Oil Components by Juvenile",
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                    "content": "metabolites are presently being investigated and should aid in further",
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                    "content": "oil. Because of the highly toxic and volatile characteristics of these",
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                    "content": "compounds, extremely precise techniques are needed. Benville has found",
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                    "content": "the flourometry method to be 10-100 times more sensitive than the colorimetry",
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                    "content": "method often used, and many times more rapid than gas chromatography.",
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                    "content": "aromatics is necessary in areas of chronic or acute oil contamination. As",
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                    "content": "an example of the contribution such methodology could add, 120 water",
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                    "content": "samples take approximately 20 man-hours of analysis using gas chromatography.",
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                    "content": "The same 120 samples could be processed in 3-4 hours using the flourometer.",
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                    "content": "STOCK ASSESSMENT AND FISHERY EVALUATION INVESTIGATIONS",
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                    "content": "National Weather Service to Participate in FAX Program at La Jolla",
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                    "content": "ceiving direct assistance from the National Weather Service's (NWS)",
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                    "content": "forecast office in Redwood City, California. The SWFC program provides",
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                    "content": "wind, weather and sea state forecasts by radio facsimile transmission",
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                    "content": "to tropical tuna fishermen who reciprocate by reporting to SWFC scientists",
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                    "content": "installation of a data line from Redwood City to SWFC, La Jolla and radio",
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                    "content": "1",
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                    "content": "or",
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                    "content": "2",
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                {
                    "content": "years.",
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                    "content": "13",
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                    "content": "Mr. J.F.T. Saur, Oceanographer at the La Jolla Laboratory, reports this",
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                {
                    "content": "month that the first test of a procedure to estimate dynamic height profiles",
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                    "content": "from XBT observations along the track from San Francisco to Hawaii has",
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                    "content": "been completed. The currents and volume transport normal to the section",
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                    "content": "can be computed from these profiles. Since dynamic heights depend not",
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                    "content": "only upon the subsurface distribution of temperature but also of salinity,",
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                {
                    "content": "the procedure is based upon a two-layered model to estimate the salinity",
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                {
                    "content": "structure. The model assumes that the temperature-salinity relationship",
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                    "content": "is linear in the layer from the surface to a point below the thermocline and",
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                {
                    "content": "that it follows an appropriate polynomial curve fitted to historical data in",
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                    "content": "the lower layer. The total calculations, using mean January subsurface XBT",
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                    "content": "temperature data, appear satisfactory for the California Current region and",
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                    "content": "the Eastern North Pacific Central waters. However, some further criteria",
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                    "content": "on the salinity and density structure will have to be developed for the",
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                    "content": "complex Transition Zone before the procedure is considered ready for",
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                    "content": "routine computations on a computer.",
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                    "content": "Drift Subroutine Completed",
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                    "content": "Mathematician A. Coan of the La Jolla Laboratory, with the assistance of",
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                    "content": "Mr. K. Brennecke, Mathematical Technician, has developed a subroutine",
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                    "content": "for the stock recruitment model which determines whether or not a fish",
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                    "content": "larvae has drifted onto shore or out of the area in which the larvae can",
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                    "content": "survive. More than usual attention was paid to efficiency in developing",
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                    "content": "the subroutine because it will be used frequently during the development",
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                {
                    "content": "and production run phases of the model project. A sample from a pre-",
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                    "content": "liminary compilation of historical ship drift data of the California Current",
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                {
                    "content": "region has been received from Mr. Craig Nelson of the Pacific Environ-",
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                    "content": "mental Group in Monterey. These data will be used by Mr. J. Zweifel",
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                    "content": "and Dr. W. Lenarz at the La Jolla Laboratory to simulate drifting of fish",
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                    "content": "larvae in the upper mixed layer for the first version of the stock recruit-",
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                    "content": "ment model. It was not possible to make complete specifications for the",
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                    "content": "ship drift data when arrangements were first made with the PEG because",
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                    "content": "of unfamiliarity with the data. Specifications have been drawn up for a",
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                    "content": "sample from a second compilation which will hopefully allow final speci-",
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                    "content": "fications to be made for the ship drift data. While the ship drift data will",
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                    "content": "be useful for developing the stock recruitment model, it is anticipated",
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                    "content": "that another set of data on the movement of surface water that is being",
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                    "content": "compiled by PEG will provide basis for a more realistic simulation of the",
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                    "content": "density measurements and is due to be completed in 1 or 2 years.",
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                {
                    "content": "fisheries.",
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                    "content": "Production Model with Density-Dependent Catchability Completed",
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                    "content": "Population Dynamics Workshop to be held in Nantes, France, in September",
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                    "content": "the equilibrium relationships of the generalized stock production model",
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                    "content": "has been worked out and a computer program, PRODQ, has been written to",
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                    "content": "estimate the parameters from fishery catch and fishing effort data. Pre-",
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                    "content": "liminary application of the model to the California sardine data provided",
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                    "content": "parameters indicating greatly increased catchability with depressed popu-",
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                    "content": "lation size could have occurred, as a number of scientists have hypothesized.",
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                    "content": "have been due solely to fishing and that it could take a virtual moratorium",
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                    "content": "on fishing, as has been enacted, to replenish the stock. These results",
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                    "content": "do not deny other hypotheses, but do further support the tenability of the",
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                    "content": "fishery-caused hypothesis.",
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                    "content": "IATTC Technical Support Analyses Continue",
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                    "content": "Laboratory, devoted a considerable proportion of the month to an analysis",
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                    "content": "of alternative management systems for the IATTC. The work includes",
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                    "content": "examination of the impact of further growth of the already large tropical",
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                    "content": "tuna fleet on the possibility of continuing the present system of having",
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                    "content": "an open season and last free trip. A draft report entitled \"A preliminary",
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                    "content": "analysis of alternative management systems for the eastern Pacific",
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                    "content": "yellowfin tuna fishery\" has been prepared.",
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                    "content": "White Seabass Preliminary Analyses Completed",
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                    "content": "Alec McCall, Fishery Biologist (CF&G) , and Gary Stauffer, Fishery",
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                    "content": "research contract, have prepared a preliminary report for CF &G on the",
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                    "content": "yield per recruit of white seabass, Cynoscion nobilis, exploited by com-",
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                    "content": "mercial gill netters and recreational fisheries. New values for the natural",
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                    "content": "mortality rate and size specific fishing mortality rates were estimated from",
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                    "confidence": 0.998,
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                    "content": "100",
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                    "content": "miles",
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                    "content": "(3)",
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                    "content": "200",
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                {
                    "content": "--",
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                    "content": "are",
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                {
                    "content": "as",
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                {
                    "content": "follows:",
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                {
                    "content": "15",
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                    "content": "California Marine Fisheries Data Compiled",
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                {
                    "content": "Commercial catch data for 16 California marine fishes by month and region",
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                    "spans": [
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                },
                {
                    "content": "have been punched on cards in order to make comparisons of catches between",
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                },
                {
                    "content": "areas and month. Bruce Wahlen, Mathematical Technician, has written a",
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                {
                    "content": "program to edit the data file created by CF &G annual catch bulletins. The",
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                    "spans": [
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                    ]
                },
                {
                    "content": "project's seasonal aid at CF &G in Long Beach has completed compilation of",
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                {
                    "content": "live bait and long-range party boat catch and effort data.",
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                    "content": "Brazilian Scientist Analyzing Atlantic Tuna Data",
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                },
                {
                    "content": "Mr. L.A. Zavala-Camin, Scientific Researcher with the Instituto de Pesca,",
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                {
                    "content": "Santos, Brazil, who is on a training mission at the La Jolla Laboratory,",
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                    "content": "spent the month working with Dr. G. Sakagawa of the Stock Assessment",
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                    "content": "and Fishery Evaluation Investigations. Mr. Zavala-Camin is analyzing",
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                    "content": "data on the Brazilian longline tuna fishery. His analyses so far have",
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                    "content": "indicated that the Brazilian catch of tuna is highest in the second and",
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                    "content": "third quarters of the year and yellowfin tuna make up about 80% of the",
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                    "content": "annual catch in number. Catch rates for 1972 and 1973 were about two to",
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                },
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                    "content": "three tuna/100 hooks/quarter. In contrast, the tuna catches of the Japanese",
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                    "content": "longline fleet off Brazil are highest in the second quarter of the year, with",
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                    "content": "albacore tuna making up the bulk of the catch (yellowfin represent only",
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                    "content": "about 8% of the catch) . The Japanese catch rates are about four tuna/100",
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                    "content": "hooks/quarter.",
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                    "content": "Analysis of Growth Data of Laboratory-Reared Northern Anchovy",
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                    "content": "Fishery Biologists M. Kimura and G. Sakagawa of the La Jolla Laboratory,",
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                    "content": "have assembled and begun analysis of extensive data on age and growth",
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                    "content": "of laboratory-reared northern anchovy. Their objective is to derive an",
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                    "content": "average growth curve for northern anchovy reared in the laboratory.",
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                    "content": "American Catch at Various Distances off West Africa Estimated",
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                    "content": "Virtually all the U.S. catch of Atlantic tropical tunas (yellowfin and skip-",
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                    "content": "jack) are annually made off West Africa. The distance from shore at which",
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                    "content": "the catches are made is of interest in understanding the population biology",
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                    "content": "of the tunas as well as in formulating management strategies. Fishery",
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                    "content": "Biologist G. Sakagawa of the La Jolla Laboratory, reports that estimates",
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                    "content": "of Atlantic tropical tuna catches made by American vessels in 1968-72 at",
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                    "content": "various distances off West Africa have been made. The estimates in terms",
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                    "content": "of percentage of total catch for three zones -- (1) shore to 12 miles, (2) shore",
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                    "content": "to 100 miles and (3) shore to 200 miles -- are as follows:",
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                    "content": "American catches was made within 100 miles of the coast. Mathematical",
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                    "content": "Technician K. Brennecke and Mathematician A. Coan assisted in calculating",
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                    "content": "the estimates.",
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                    "content": "STOCK AND RECRUITMENT INVESTIGATIONS",
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                {
                    "content": "Mr. Keiichiro Mori of the Far Seas Fisheries Research Laboratory of Shimizu,",
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                {
                    "content": "Japan, finished 11 months of study at the SWFC Laboratory at La Jolla and",
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                    "content": "departed for the Honolulu Laboratory on May 20, where he plans to spend",
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                    "content": "1 month before returning to Japan. Mr. Mori was studying identification",
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                {
                    "content": "of fish eggs and larvae under the direction of Dr. Ahlstrom.",
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                    "content": "Mr. Art Kendall of the NMFS Laboratory at Sandy Hook, New Jersey, spent",
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                    "content": "May 28-31 at the SWFC and took and passed preliminary examinations for",
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                {
                    "content": "a Ph. D. at the Scripps Institution of Oceanography. Dr. R. Rosenblatt and",
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                    "content": "Dr. Ahlstrom are co-chairmen of his doctoral committee. Mr. Kendall is",
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                    "content": "working on life history studies on seabass (family Serranidae) , and has",
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                    "content": "found that each of the four subfamilies of serranids represented in the",
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                {
                    "content": "fauna of both U. S. coasts (Atlantic and Pacific) , have characteristic larvae",
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                    "content": "that are strikingly different from subfamily to subfamily.",
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                    "content": "Fishery Biologist G. Moser at the La Jolla Laboratory, reports continued",
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                    "content": "progress on preparation of the identification guide to scorpion fish larvae.",
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                    "content": "A series of redfish larvae from off New England was provided for study by",
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                    "content": "the Narragansett Laboratory. Examinations of these taxonomic character-",
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                    "content": "istics revealed differences between these larvae and those of Sebastes",
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                    "content": "marinus described by Taning. This lends support to the notion that the",
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                    "content": "redfish off the American coast is specifically distinct from Sebastes",
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                    "content": "marinus found in other regions of the north Atlantic.",
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                    "content": "The larvae of a particularly abundant eastern Pacific rockfish, S. jordani,",
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                    "content": "was illustrated, and the description is now being completed. The larvae",
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                    "content": "of this species bear a remarkable resemblance to those of North Atlantic",
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                    "content": "species of Sebastes. With the Sebastes section of the manuscript nearly",
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                    "content": "completed the briefer descriptions of the larvae of other eastern Pacific",
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                    "content": "scorpionfish larvae will be initiated.",
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                    "content": "and the sablefish. Anchovy larvae also are taken in abundance in neuston",
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                    "content": "in ram-ventilating fish?",
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                    "content": "Maturation in Striped Bass",
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                    "content": "CF &G would like to be able to spawn and rear striped bass in sea water",
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                    "content": "hatcheries. In February 1973, a collaborative effort between the Inland",
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                    "content": "Fisheries Branch of CF &G and the La Jolla Laboratory to accomplish this",
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                    "content": "in sea water was begun, using the facilities of the sea water aquarium at",
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                    "content": "the SWFC.",
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                    "content": "concentrations.",
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                    "content": "With the success in maturation of gonads of striped bass both in sea water",
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                    "content": "and 50% sea water, the experiment for maturation of gonads in fresh water",
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                    "content": "and 50% sea water has been terminated, after 5 months. Biopsy of fish",
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                    "content": "in all tanks showed that the majority of females this month are at the",
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                    "content": "immature stage with little or no yolk. Efforts to speed up the maturation",
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                    "content": "process in immature females by giving varying doses of gonadotrophin",
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                    "content": "have produced negative results. The number of mature males in all the",
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                    "content": "Pacific Mackerel Successfully Reared from Egg through Metamorphosis",
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                    "content": "on Laboratory-Cultured Food at La Jolla",
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                    "content": "Dr. J. Hunter, Fishery Biologist at the La Jolla Laboratory, reports that he",
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                    "content": "and Carol Sanchez, Biological Technician, have successfully reared from",
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                    "content": "the egg through metamorphosis the Pacific mackerel, Scomber japonicus.",
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                    "content": "This is the first time mackerel have been reared through metamorphosis",
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                    "content": "on a laboratory cultured food, under controlled conditions. At the age",
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                    "content": "of 18 days the larvae had become juveniles and had an average length of",
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                    "content": "17.8 mm. The percent survival at 18 days of age was 4% but this is an",
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                    "content": "underestimate because 15 larvae were removed every other day for length/",
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                    "content": "weight measurements. Eggs were obtained from a laboratory population of",
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                    "content": "mackerel brought to breeding conditions by Mr. Roger Leong.",
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                    "content": "*",
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                    "content": "Dr. Lasker presented an outline of future CalCOFI survey work to the",
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                    "content": "Marine Research Committee of the State of California on May 17. His",
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                    "content": "request that the Committee purchase a particle counter and sizer for",
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                    "content": "laboratory and ship work was approved by the Committee.",
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                    "content": "A first draft of a paper describing observations of dense concentrations of",
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                    "content": "a larval food organism, Gymnodinium splendens in the chlorophyll maximum",
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                    "content": "layer over the 20-fathom mark in the Los Angeles Bight was completed by",
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                    "content": "Dr. Dale Kiefer of SIO and Dr. Lasker this month.",
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                    "content": "Experiments to determine the threshold concentration for feeding by anchovy",
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                    "content": "larvae on Gymnodinium were completed by Dr. Lasker and Ms. Setzler this",
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                    "content": "month. At 17-18°C first-feeding anchovy larvae drop in feeding efficiency",
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                    "content": "at 20 food particles per milliliter. This information is needed to assess",
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                    "content": "Virtually",
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                    "content": "by Jim Zweifel, Mathematician, and Reuben Lasker of the La Jolla Lab-",
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                    "content": "five-parameter Gompertz-type growth model to describe events from",
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                    "content": "fertilization through depletion of the yolk-sac.",
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                    "content": "SURVEY SYSTEMS ANALYSIS INVESTIGATIONS",
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                    "content": "plotting variations of his index of the offshore component of geostrophic",
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                    "content": "flow, as measured by the variation of dynamic slope across the north-",
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                    "content": "south axis of the Eddy. Plans were formulated to develop and compute",
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                    "content": "water column stability, geostrophic flow shear, and vertical mixing rate",
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                    "content": "from CalCOFI oceanographic data, also to be extended as time series.",
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                    "content": "Dr. Owen has completed a manuscript entitled, \"Distribution of primary",
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                    "content": "production, plant pigments, and Secchi depth in the California Current",
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                    "content": "region, 1963.\" The work is to be published together with nutrient dis-",
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                    "content": "tributions as CalCOFI Atlas No. 20, to provide working charts of phyto-",
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                    "content": "plankton dynamics of the region. Distributions show clearly the influence",
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                    "content": "of coastal upwelling and the Southern California Eddy, and the existence",
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                    "content": "and character of seasonal variations.",
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                    "content": "Net Avoidance Demonstrated for Young Larvae",
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                    "content": "Dr. Paul Smith at the La Jolla Laboratory, has produced a comparison of the",
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                    "content": "numbers of larvae, in various size classes, that were taken in CalCOFI",
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                },
                {
                    "content": "Baja",
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                    "confidence": 0.992,
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                },
                {
                    "content": "California",
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                    "content": "5",
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                },
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                    "content": "1.2",
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                },
                {
                    "content": "0.27",
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                    "content": "0.83",
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                },
                {
                    "content": "0.88",
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                },
                {
                    "content": "0.30",
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                    "content": "1.4",
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                },
                {
                    "content": "Cape",
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                },
                {
                    "content": "San",
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                },
                {
                    "content": "Lucas",
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                },
                {
                    "content": "18",
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                },
                {
                    "content": "0.53",
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                },
                {
                    "content": "1958",
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                },
                {
                    "content": "21",
                    "polygon": [
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                }
            ],
            "lines": [
                {
                    "content": "The decrease is not significant for the 3.75 mm class. The diurnal dip",
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                    ]
                },
                {
                    "content": "is first noticed on the line representing larvae 5.75 mm in length and",
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                    ]
                },
                {
                    "content": "becomes more pronounced as the larva length increases. It may be sig-",
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                    ]
                },
                {
                    "content": "nificant to note that eye pigmentation occurs at that stage of development",
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                    ]
                },
                {
                    "content": "when the larvae is between 3.75 and 5. 75 mm in length.",
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                    ]
                },
                {
                    "content": "Sportfish Distribution Induced by Climatic Changes",
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                    ]
                },
                {
                    "content": "The CalCOFI collections of the larvae of inshore sportfishes are not very",
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                    ]
                },
                {
                    "content": "large, but the larvae are present in sufficient numbers to permit develop-",
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                    ]
                },
                {
                    "content": "ment of census estimates of their regional abundance and to indicate trends",
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                    ]
                },
                {
                    "content": "in their distributions as they were affected by climatic changes.",
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                    ]
                },
                {
                    "content": "To demonstrate this, Dr. P. Smith and David Kramer, Fishery Biologist",
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                    ]
                },
                {
                    "content": "at La Jolla, have summarized sportfish larvae data for the cold (1954) and",
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                    ]
                },
                {
                    "content": "warm (1958) years off Baja California and Southern California. The sum-",
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                    ]
                },
                {
                    "content": "maries show that the climatic changes induced northward shifts in the",
                    "polygon": [
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                    ]
                },
                {
                    "content": "distributions of the centers of abundance of the spawning populations of",
                    "polygon": [
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                    ]
                },
                {
                    "content": "a number of these fishes, e.g. , Cynoscion nobilis (white seabass),",
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                    ]
                },
                {
                    "content": "Sphyraena argentea (California barracuda) , Seriola dorsalis (California",
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                    ]
                },
                {
                    "content": "yellowtail) and Paralichthys californicus (California halibut) :",
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                    ]
                },
                {
                    "content": "Region",
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                    ]
                },
                {
                    "content": "White",
                    "polygon": [
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                    ]
                },
                {
                    "content": "seabass",
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                            "length": 7
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                    ]
                },
                {
                    "content": "1954",
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                            "length": 4
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                    ]
                },
                {
                    "content": "1958",
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                    "spans": [
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                            "length": 4
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                    ]
                },
                {
                    "content": "(x106)",
                    "polygon": [
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                    ]
                },
                {
                    "content": "California",
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                    ]
                },
                {
                    "content": "barracuda",
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                    ]
                },
                {
                    "content": "1954 1958",
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                            "length": 9
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                    ]
                },
                {
                    "content": "(x106)",
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                    ]
                },
                {
                    "content": "California",
                    "polygon": [
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                    ]
                },
                {
                    "content": "yellowtail",
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                },
                {
                    "content": "1954",
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                            "length": 4
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                    ]
                },
                {
                    "content": "(x105",
                    "polygon": [
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                },
                {
                    "content": "1958",
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                    ]
                },
                {
                    "content": "California",
                    "polygon": [
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                },
                {
                    "content": "halibut",
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                    ]
                },
                {
                    "content": "1954",
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                {
                    "content": "(x105",
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                    ]
                },
                {
                    "content": "Central",
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                },
                {
                    "content": "California",
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                    ]
                },
                {
                    "content": "0.3",
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                    ]
                },
                {
                    "content": "Southern",
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                },
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                    "content": "California",
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                },
                {
                    "content": "7",
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                },
                {
                    "content": "37.1",
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                },
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                    "span": {
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                },
                {
                    "content": "by",
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                {
                    "content": "drawing",
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                },
                {
                    "content": "to",
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                },
                {
                    "content": "receive",
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                {
                    "content": "the",
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                },
                {
                    "content": "the",
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                },
                {
                    "content": "anchovy",
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                },
                {
                    "content": "brought",
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                {
                    "content": "to",
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                    "confidence": 0.998,
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                },
                {
                    "content": "Honolulu",
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                {
                    "content": "on",
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                },
                {
                    "content": "the",
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                },
                {
                    "content": "second",
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                    "confidence": 0.993,
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                    }
                },
                {
                    "content": "trial",
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                    "confidence": 0.995,
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                },
                {
                    "content": "shipment.",
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                },
                {
                    "content": "The",
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                    "confidence": 0.998,
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                },
                {
                    "content": "Angel",
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                },
                {
                    "content": "23",
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            ],
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                {
                    "content": "At that time an estimated 500 additional pounds of anchovy were added",
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                    "spans": [
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                    ]
                },
                {
                    "content": "to the tank, bringing the tank population up to an estimated 1, 300 pounds.",
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                },
                {
                    "content": "(Mortality alone can be accurately measured.) When the tanker was moved",
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                    ]
                },
                {
                    "content": "to the fish-loading point, the filter of the closed system clogged, resulting",
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                    ]
                },
                {
                    "content": "in the near-suffocation of the entire load. But it rolled aboard Matson's",
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                    ]
                },
                {
                    "content": "RO/RO (roll-on/roll-off) vessel Matsonia on the following day and the",
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                },
                {
                    "content": "ship departed Long Beach at 1400. Mr. Gooding accompanied the tank,",
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                },
                {
                    "content": "which then held approximately 1, 100 pounds of anchovy.",
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                },
                {
                    "content": "According to records kept by Mr. Gooding of the daily \"mortality, \"",
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                },
                {
                    "content": "including fish that were still alive when expelled, there were about",
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                },
                {
                    "content": "150 pounds per day lost during the first 3 days of crossing. On the",
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                },
                {
                    "content": "4th day, May 23, only 10 pounds of fish were lost.",
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                    "content": "Considering",
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                },
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                    "content": "the known mortality, there were roughly 650-700 pounds of anchovy",
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                    "content": "surviving.",
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                },
                {
                    "content": "The Matsonia arrived at Matson's new RO/RO facilities at Sand Island,",
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                },
                {
                    "content": "Oahu at 1400, May 23. Two tugboats, turning the ship around in the",
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                },
                {
                    "content": "narrow basin, stirred up the muddy bottom of the harbor. This water",
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                },
                {
                    "content": "entered the tank through the open system and caused a sharp drop in",
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                    "content": "dissolved oxygen. The condition was corrected by Mr. Gooding with",
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                },
                {
                    "content": "the addition of pure oxygen.",
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                },
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                    "content": "The remaining anchovy was estimated at 500 pounds, so the original",
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                    "content": "estimate must have been off by 200 pounds. Estimations of the amount",
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                    "content": "of anchovies continue to be a problem.",
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                    "content": "Work has begun on improvements to the bottom vacuum system to reduce",
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                },
                {
                    "content": "live fish entrapment by it.",
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                    "content": "A third shipment of live anchovy is planned for next month.",
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                {
                    "content": "Northern Anchovy as Live Bait Produce Good Tuna Catches in Hawaii",
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                },
                {
                    "content": "The anchovy from the first trial shipment, about 12-15 buckets, were",
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                },
                {
                    "content": "used by the commercial fishing vessel Anela May 10 and 11. The anchovy",
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                },
                {
                    "content": "were used to chum and fish yellowfin tuna; 150 fish were caught, weighing",
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                    "content": "an average of 20 pounds. The Anela fishermen were quite enthusiastic",
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                },
                {
                    "content": "about the anchovy, but felt that the skipjack tuna seen on those two",
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                },
                {
                    "content": "fishing days were too small (5-7 pounds) to be fished with anchovy.",
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                    "content": "Aku boats Angel and Buccaneer were selected by drawing to receive the",
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                {
                    "content": "the anchovy brought to Honolulu on the second trial shipment. The Angel",
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                    "content": "23",
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            ],
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        },
        {
            "pageNumber": 25,
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                    "content": "took",
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                    "content": "\"heavy\"",
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                    "content": "buckets",
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                    "content": "Hawaiian,",
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                    "content": "fisheries.\"",
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                    "content": "Skipjack",
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                    "content": "took 20 \"heavy\" buckets of anchovy (estimated 12 pounds to a bucket) on",
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                    "content": "May 25 and, along with 15-20 buckets of nehu, went fishing on May 26,",
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                    "content": "with Research Assistant Thomas Kazama as observer. Beginning at 0610,",
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                    "content": "four schools of medium-sized (8-12 pounds) skipjack tuna were fished",
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                    "content": "using nehu for the most part, for a total catch of 573 skipjack tuna.",
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                    "content": "Fishing was terminated at 1240 with a catch of approximately 8,000 pounds",
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                    "content": "until large schools of large skipjack tuna were seen.",
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                    "content": "The Angel fished again May 28, chumming with anchovy to draw the schools",
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                    "content": "to the surface and then switching to nehu. Medium and large (over 15",
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                    "content": "pounds) skipjack tuna were fished for a catch of 5, 500 pounds.",
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                    "content": "Further fishing with the Anela's remaining 14 buckets of anchovy will be",
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                    "content": "taking 3,640 pounds of fish, mostly 8-15 pounds. During that day, the",
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                    "content": "Buccaneer expended 15 buckets of nehu and three of anchovy. Her practice",
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                    "content": "was similar to that of the Angel, chumming with anchovy until a school of",
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                    "content": "fish responded and chumming with nehu during fishing. Results of this",
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                    "content": "procedure were pronounced excellent.",
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                    "content": "It was noted that many anchovy were picked up by birds as they were",
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                    "content": "chummed. Obviously the larger fish are more visible to birds and to tuna.",
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                },
                {
                    "content": "Review is continuing at the Honolulu Laboratory on the manuscript,",
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                {
                    "content": "\"The American Samoa longline fishery, 1966-71\" by Fishery Biologist",
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                    "content": "Howard O. Yoshida. This month Mr. Yoshida completed his third con-",
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                    "content": "tribution to the baitfish workshop, a working paper entitled \"The production",
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                    "content": "of tuna in the eastern Pacific, Hawaiian, and Japanese pole-and-line",
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                    "content": "fisheries.\"",
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                    "content": "Hawaiian Skipjack Tuna Catch Slightly Below May Averages",
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                    "content": "and collected 38 sets of catch and effort data. Using the data from 10",
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                    "content": "vessels, an average size of 90.4 cm was determined, and an albacore",
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                    "content": "Fishery Analysis Program Emphasis in May is on Data Organization",
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                    "content": "and Manuscript Preparation",
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                    "content": "The Fishery Analysis Program under Dr. Robert A. Skillman at the Honolulu",
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                    "content": "Assessment, Pacific and Indian Oceans, with major emphasis on stock",
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                    "content": "assessment, fishery monitoring, and fishery liaison aspects of the SWFC's",
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                    "content": "skipjack tuna development plan. The status of exploited stocks of other",
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                    "content": "tuna and tunalike resources of U.S. concern are also monitored through",
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                    "content": "the systematic collection and analysis of fisheries data. The three sub-",
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                    "content": "groups of the program are fishery liaison and monitoring, assessment of",
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                    "content": "skipjack tuna resources, and assessment of other tuna and tunalike",
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                    "content": "resources .",
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                    "content": "Richard N. Uchida, Fishery Biologist in the Honolulu Laboratory's Fishery",
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                    "content": "Analysis Program, has resumed his literature search for data and informa-",
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                    "content": "tion on the development or potential development of skipjack tuna fisheries,",
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                    "content": "particularly in the southwest Pacific and around the islands of the Indian",
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                    "content": "Ocean which are contiguous to the southwest Pacific. Mr. Uchida is also",
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                    "content": "involved in preparing a report for the IOFC/IPFC working party meeting.",
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                    "content": "He has completed two papers for the Tuna Baitfish Workshop, June 4-6",
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                    "content": "in Honolulu. The first, entitled \"The fishery for nehu, Stolephorus",
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                    "content": "purpureus, a live bait used for skipjack tuna fishing in Hawaii,\" discusses",
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                    "content": "the baiting localities in the Hawaiian Islands, the methods used in capturing",
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                    "content": "bait during the day and at night, and the production of nehu from the major",
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                    "content": "baiting sites.",
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                    "content": "In 1960-72, statewide bait production varied between 22,849 buckets and",
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                    "content": "21",
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                    "content": "-",
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                    "content": "from San Dieguito High School and their instructor, Mr.",
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                    "content": "Fisheries Center.",
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                    "content": "May",
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                    "content": "-",
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                    "content": "Issued for release to West Coast newspapers, \"Executive",
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                    "content": "Officer Named for Fisheries Center.\"",
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                    "content": "-",
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                    "content": "Issued by Honolulu Laboratory, \"Baitfish Workshop to be",
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                    "content": "Held in Honolulu.\"",
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                    "content": "SEMINARS AND LECTURES",
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                    "content": "Mr. Ralph Bates, Systems Analyst at the La Jolla Laboratory,",
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                    "content": "presented an informal lecture on data base structure,",
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                    "content": "elements and banks.",
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                    "content": "Mr. John E. Tyler of the Scripps Institution of Oceanography,",
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                    "content": "spoke on \"Some thoughts on light measurement in biological",
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                    "content": "oceanography.\"",
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                    "content": "MEETINGS",
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                    "content": "TRAVEL",
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                    "content": "A",
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                    "content": "baitfish",
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                    "content": "May 26- -",
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                    "content": "N",
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                },
                {
                    "content": "Page 1 of 2",
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                    "content": "Ralph B. Bates",
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                    "content": "74/75",
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                    "content": ">",
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                    "content": "WEEK-D 1 2 3 4 5 1 |2 |3 |4|",
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                    "content": "12345",
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                {
                    "content": "-",
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                    "spans": [
                        {
                            "offset": 70628,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70630,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-04-031 \"STD\" DATA REVISE SYSTEM -- LYNN",
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                    "spans": [
                        {
                            "offset": 70633,
                            "length": 42
                        }
                    ]
                },
                {
                    "content": "DR",
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                    "spans": [
                        {
                            "offset": 70676,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-06-011 WEATHER DATA -- EBER",
                    "polygon": [
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                    "spans": [
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                            "offset": 70679,
                            "length": 30
                        }
                    ]
                },
                {
                    "content": "DR",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70710,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-06-041 \"XBT\" DATA REDUCTION -- SAUR",
                    "polygon": [
                        0.8796,
                        2.8455,
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                    "spans": [
                        {
                            "offset": 70713,
                            "length": 38
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                    ]
                },
                {
                    "content": "DR",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70752,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-11-011-1 ADDITIONAL PORPOISE SETS DATA BASE",
                    "polygon": [
                        0.875,
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                    "spans": [
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                            "offset": 70755,
                            "length": 46
                        }
                    ]
                },
                {
                    "content": "0",
                    "polygon": [
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                    "spans": [
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                            "offset": 70802,
                            "length": 1
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                    ]
                },
                {
                    "content": "DR",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70804,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-11-011 DATA BASE REPORTS AS REQUIRED -- PERRIN.",
                    "polygon": [
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                    "spans": [
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                            "offset": 70807,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "T. SMITH & OTHERS.",
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                            "length": 18
                        }
                    ]
                },
                {
                    "content": "DR",
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                    "spans": [
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                            "offset": 70877,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-11-012 OBSERVER MAMMAL SETS EDIT -- PERRIN, SMITH",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 70880,
                            "length": 52
                        }
                    ]
                },
                {
                    "content": "CANCELLED",
                    "polygon": [
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                            "length": 9
                        }
                    ]
                },
                {
                    "content": "DR",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 70943,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-11-012 OBSERVER MAMMAL SETS DATA BASE -- PERRIN",
                    "polygon": [
                        0.8705,
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                    "spans": [
                        {
                            "offset": 70946,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "O",
                    "polygon": [
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                        3.8993,
                        5.6947,
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                    ],
                    "spans": [
                        {
                            "offset": 70997,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "34",
                    "polygon": [
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                            "offset": 70999,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "DR",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71002,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-11-012 OBSERVER MAMMAL SETS REPORTS -- PERRIN",
                    "polygon": [
                        0.875,
                        4.1468,
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                    "spans": [
                        {
                            "offset": 71005,
                            "length": 48
                        }
                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
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                        0.3665,
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                    ],
                    "spans": [
                        {
                            "offset": 71054,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-11-013 OBSERVER PORPOISE LIFE HISTORY -- PERRIN",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 71057,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "SW-16-011 20 YEAR CALCOFI DATA-SIZED LARVAE FOR",
                    "polygon": [
                        0.8659,
                        4.5592,
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                        4.7876,
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                    ],
                    "spans": [
                        {
                            "offset": 71108,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "3",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 71156,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 71158,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-16-011 CORRECT ERRORS IN 1961-1969 DATA-SMITH\"",
                    "polygon": [
                        0.8659,
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                    "spans": [
                        {
                            "offset": 71161,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
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                    ],
                    "spans": [
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                            "offset": 71211,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-16-011 20 YEAR CALCOFI DATA-SIZED LARVAE FOR",
                    "polygon": [
                        0.8659,
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                    "spans": [
                        {
                            "offset": 71214,
                            "length": 47
                        }
                    ]
                },
                {
                    "content": "1951-1960-CREATE BASIC DATA FILE-SMITH",
                    "polygon": [
                        1.7134,
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                    "spans": [
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                            "offset": 71262,
                            "length": 38
                        }
                    ]
                },
                {
                    "content": "3",
                    "polygon": [
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                    "spans": [
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                            "offset": 71301,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "STATUS",
                    "polygon": [
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                    "spans": [
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                            "offset": 71303,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "STATUS COMMENTS: 1. DATA BASE HAS BEEN CREATED FOR THE PORPOISE SET LOGS. THIS PROJECT IS REQUIRED TO PROCESS",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71310,
                            "length": 109
                        }
                    ]
                },
                {
                    "content": "ADDITIONAL CRUISES AND TO TRAIN PERSONNEL IN DATA BASE PROCEDURES.",
                    "polygon": [
                        2.1853,
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                    "spans": [
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                            "offset": 71420,
                            "length": 66
                        }
                    ]
                },
                {
                    "content": "2. PROJECT CANCELLED",
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                    "spans": [
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                            "offset": 71487,
                            "length": 20
                        }
                    ]
                },
                {
                    "content": "DITING OF DATA WILL BE DONE UNDER DATA BASE PROCEDURES.",
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                            "length": 55
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                    ]
                },
                {
                    "content": "3.",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71564,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "ALL PROGRAMS COMPLETED-FINAL COMPILATION OF MASTER",
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                    "spans": [
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                            "offset": 71567,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "FILE WILL BE DONE WHEN ALL DATA HAS BEEN EDITED_AND CORRECTED.",
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                    "spans": [
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                            "offset": 71618,
                            "length": 62
                        }
                    ]
                },
                {
                    "content": "MILESTONE LEGEND:",
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                            "offset": 71681,
                            "length": 17
                        }
                    ]
                },
                {
                    "content": "STATUS LEGEND:",
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                    "spans": [
                        {
                            "offset": 71699,
                            "length": 14
                        }
                    ]
                },
                {
                    "content": "PLANNED",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71714,
                            "length": 7
                        }
                    ]
                },
                {
                    "content": "O",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71722,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "REVISED",
                    "polygon": [
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                    "spans": [
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                            "offset": 71724,
                            "length": 7
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                    ]
                },
                {
                    "content": "4",
                    "polygon": [
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                    "spans": [
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                            "offset": 71732,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "ON SCHEDULE",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71734,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "MAY SLIP",
                    "polygon": [
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                    "spans": [
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                            "offset": 71746,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "BEHIND SCHEDULE",
                    "polygon": [
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                    "spans": [
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                            "offset": 71755,
                            "length": 15
                        }
                    ]
                },
                {
                    "content": "COMPLETED",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71771,
                            "length": 9
                        }
                    ]
                },
                {
                    "content": ".",
                    "polygon": [
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                        2.5152,
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                    ],
                    "spans": [
                        {
                            "offset": 71781,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "- - N",
                    "polygon": [
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                    "spans": [
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                            "offset": 71783,
                            "length": 5
                        }
                    ]
                },
                {
                    "content": "A",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71789,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "DATA HAS NOT",
                    "polygon": [
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                        6.8721,
                        4.4721,
                        5.0899,
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                    ],
                    "spans": [
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                            "offset": 71791,
                            "length": 12
                        }
                    ]
                },
                {
                    "content": "BEEN",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 71804,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "RECEIVED",
                    "polygon": [
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                        9.0208,
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                    "spans": [
                        {
                            "offset": 71809,
                            "length": 8
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
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                    "spans": [
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                            "offset": 71818,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "1961-1969 - CREATE BASIC DATA FILE",
                    "polygon": [
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                    "spans": [
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                            "offset": 71821,
                            "length": 34
                        }
                    ]
                },
                {
                    "content": "1",
                    "polygon": [
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                    "spans": [
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                            "offset": 71856,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "AAAA A",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 71858,
                            "length": 6
                        }
                    ]
                },
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                {
                    "content": "· JULY",
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                {
                    "content": "AUG",
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                    ]
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                {
                    "content": "MONTH / WEEK",
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                    "content": "WEEK-D123451234",
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                    ]
                },
                {
                    "content": "1234 12 3 45",
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                            "length": 12
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                    ]
                },
                {
                    "content": "PROJ. TITLE",
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                    "spans": [
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                            "length": 11
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                    ]
                },
                {
                    "content": "MILESTONES",
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                    ]
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                    "content": "NW",
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                    ]
                },
                {
                    "content": "SW-16-011 CORRECT ERRORS IN 1951-1960 DATA-SMITH",
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                    "spans": [
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                            "offset": 72208,
                            "length": 48
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                    ]
                },
                {
                    "content": "Q",
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                        2.2562,
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                    "spans": [
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                            "offset": 72257,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "O",
                    "polygon": [
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                    "spans": [
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                            "offset": 72259,
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                        }
                    ]
                },
                {
                    "content": "3",
                    "polygon": [
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                            "offset": 72261,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "NW.",
                    "polygon": [
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                    "spans": [
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                            "offset": 72263,
                            "length": 3
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                    ]
                },
                {
                    "content": "SW-16-011 CREATE DATA BASE 1951-1969 AND PREPARE",
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                        0.8957,
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                        {
                            "offset": 72267,
                            "length": 48
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                    ]
                },
                {
                    "content": "4",
                    "polygon": [
                        10.1883,
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                        10.1883,
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                    "spans": [
                        {
                            "offset": 72316,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
                        0.3904,
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                    "spans": [
                        {
                            "offset": 72318,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-16-012 20 YEAR CALCOFI UNSIZED & EGGS -- SMITH",
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                    "spans": [
                        {
                            "offset": 72321,
                            "length": 49
                        }
                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 72371,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-16-015 20 YEAR CALCOFT REQUIREMENTS-NETWORK",
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                        {
                            "offset": 72374,
                            "length": 46
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                    ]
                },
                {
                    "content": "& PERT CHARTS -- SMITH & HEWITT",
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                        1.7363,
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                            "offset": 72421,
                            "length": 31
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
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                    "spans": [
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                            "offset": 72453,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-16-014 CALCOFI PUBLICATIONS 1960-1969 -- KRAMER",
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                        0.9003,
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                        3.6348,
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                    "spans": [
                        {
                            "offset": 72456,
                            "length": 50
                        }
                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
                        0.3767,
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                    ],
                    "spans": [
                        {
                            "offset": 72507,
                            "length": 2
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                    ]
                },
                {
                    "content": "SW-19-011 MULTIPLE REGRESSION INFONET -- VROOMAN",
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                    "spans": [
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                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
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                    "spans": [
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                            "offset": 72559,
                            "length": 2
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                    ]
                },
                {
                    "content": "SW-30-062 SYSTEMS ANALYSIS -- SQUIRE",
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                            "offset": 72562,
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                    ]
                },
                {
                    "content": "BROJ",
                    "polygon": [
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                    "spans": [
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                            "length": 4
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                    ]
                },
                {
                    "content": "LECT",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 72604,
                            "length": 4
                        }
                    ]
                },
                {
                    "content": "NOT DEFINED",
                    "polygon": [
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                        8.847,
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                    "spans": [
                        {
                            "offset": 72609,
                            "length": 11
                        }
                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 72621,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-36-011 DATA ELEMENT/DIRECTORY -- BATES",
                    "polygon": [
                        0.8957,
                        4.3011,
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                        4.3011,
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                    "spans": [
                        {
                            "offset": 72624,
                            "length": 41
                        }
                    ]
                },
                {
                    "content": "e",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 72666,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
                        0.3859,
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                    ],
                    "spans": [
                        {
                            "offset": 72668,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-36-014 CATALOG OF PROGRAMS -- BATES",
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                    ],
                    "spans": [
                        {
                            "offset": 72671,
                            "length": 38
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                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
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                    ],
                    "spans": [
                        {
                            "offset": 72710,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-36-015 STANDARD OPERATING PROCEDURES AND",
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                        4.7238,
                        4.4878,
                        4.8709,
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                    "spans": [
                        {
                            "offset": 72713,
                            "length": 43
                        }
                    ]
                },
                {
                    "content": "SYSTEM/PROGRAM DOCUMENTATION",
                    "polygon": [
                        1.7134,
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                        4.926,
                        4.079,
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                    "spans": [
                        {
                            "offset": 72757,
                            "length": 28
                        }
                    ]
                },
                {
                    "content": "4",
                    "polygon": [
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                        5.0409,
                        9.9081,
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                    ],
                    "spans": [
                        {
                            "offset": 72786,
                            "length": 1
                        }
                    ]
                },
                {
                    "content": "RB",
                    "polygon": [
                        0.3859,
                        5.165,
                        0.5696,
                        5.1696,
                        0.565,
                        5.2753,
                        0.3859,
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                    ],
                    "spans": [
                        {
                            "offset": 72788,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-36-017 SWFC MAILING LISTS-SYSTEMS ANALYSIS",
                    "polygon": [
                        0.8911,
                        5.1328,
                        4.6532,
                        5.1374,
                        4.6532,
                        5.2891,
                        0.8911,
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                    "spans": [
                        {
                            "offset": 72791,
                            "length": 45
                        }
                    ]
                },
                {
                    "content": "NW",
                    "polygon": [
                        0.3675,
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                        0.5512,
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                        0.3675,
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                    ],
                    "spans": [
                        {
                            "offset": 72837,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "SW-36-018 SWFC TAPE LIBRARY SYSTEM & CATALOG",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 72840,
                            "length": 44
                        }
                    ]
                },
                {
                    "content": "STATUS",
                    "polygon": [
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                        5.5556,
                        0.9049,
                        5.7072,
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                    "spans": [
                        {
                            "offset": 72885,
                            "length": 6
                        }
                    ]
                },
                {
                    "content": "STATUS COMMENTS:",
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                    "spans": [
                        {
                            "offset": 72892,
                            "length": 16
                        }
                    ]
                },
                {
                    "content": "3. ALL PROGRAMS COMPLETED-FINAL COMPILATION OF MASTER FILE WILL BE DONE WHEN ALL DATA HAS BEEN",
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                    "spans": [
                        {
                            "offset": 72909,
                            "length": 94
                        }
                    ]
                },
                {
                    "content": "EDITED AND CORRECTED.",
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                        6.084,
                        2.1314,
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                    "spans": [
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                            "offset": 73004,
                            "length": 21
                        }
                    ]
                },
                {
                    "content": "4.",
                    "polygon": [
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                        2.5677,
                        6.2173,
                        2.3564,
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                    "spans": [
                        {
                            "offset": 73026,
                            "length": 2
                        }
                    ]
                },
                {
                    "content": "PROGRAMMING COMPLETED-CANNOT SCHEDULE BECAUSE OF UNKNOWN AMOUNT OF WORK REQUIRED FOR",
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                        2.5769,
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                        9.7381,
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                    "spans": [
                        {
                            "offset": 73029,
                            "length": 84
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                    ]
                },
                {
                    "content": "EDITING AND CORRECTING 20 YEARS OF DATA. 5. PRELIMINARY ANALYSIS COMPLETED-FINAL SCHEDULE DEPENDENT UPON COMPLETION",
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                        10.147,
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                    "spans": [
                        {
                            "offset": 73114,
                            "length": 115
                        }
                    ]
                },
                {
                    "content": "OF PROJECT SW-16-011.",
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                        2.1268,
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                    "spans": [
                        {
                            "offset": 73230,
                            "length": 21
                        }
                    ]
                },
                {
                    "content": "MILESTONE LEGEND:",
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                            "length": 17
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                    ]
                },
                {
                    "content": "STATUS LEGEND:",
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                    "spans": [
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                    ]
                },
                {
                    "content": "PLANNED",
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                    "spans": [
                        {
                            "offset": 73285,
                            "length": 7
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                    ]
                },
                {
                    "content": "O",
                    "polygon": [
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                        6.8376,
                        2.554,
                        6.9203,
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                            "length": 1
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                    ]
                },
                {
                    "content": "REVISED",
                    "polygon": [
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                    "spans": [
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                            "length": 7
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                    ]
                },
                {
                    "content": "ON SCHEDULE",
                    "polygon": [
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                            "length": 11
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                    ]
                },
                {
                    "content": "MAY SLIP",
                    "polygon": [
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                            "offset": 73315,
                            "length": 8
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                    ]
                },
                {
                    "content": "BEHIND SCHEDULE",
                    "polygon": [
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                    "spans": [
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                            "length": 15
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                    ]
                },
                {
                    "content": "COMPLETED",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 73340,
                            "length": 9
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                    ]
                },
                {
                    "content": "5",
                    "polygon": [
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                    "spans": [
                        {
                            "offset": 73350,
                            "length": 1
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                    ]
                },
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            "content": "LA JOLLA"
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            "content": "MONTHLY REPORT-MAY 1974"
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            "content": "Research Highlights Page"
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            "content": "· Publications"
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            "content": "1"
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            "content": ". Albacore Fishery Expected to be Centered North, But Outlook off California Improved. 3"
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            "content": ". Cooperative Arrangements for Silver Salmon Pen Rearing Proceeding. . 5"
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            "content": ". Technical Meeting on Program for Analysis of Porpoise Population Dynamics Held at Southwest Fisheries Center. 9"
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            "content": "· Uptake and Accumulation of Crude Oil Components by Juvenile Herring Studied 11"
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            "content": ". NOAA's National Weather Service Augments Participation in FAX Program at La Jolla 12"
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            "content": ". Preliminary Population Dynamics Analyses Completed on White Seabass 14"
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            "content": ". Pacific Mackerel Successfully Reared from Egg through Metamorphosis on Laboratory-Cultured Food at La Jolla. 19"
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        {
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            "content": ". Shifts in Recreational Fish Distribution Induced by Climatic Changes. 21"
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            "content": ". Second Trial Anchovy Shipment Successfully Delivers 500 Pounds of Baitfish to Hawaii 22"
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            "content": ". Northern Anchovy as Live Bait Produce Good Tuna Catches in Hawaii. 23"
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            "content": "NOAA/NMFS"
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            "content": ". SOUTHWEST FISHERIES CENTER, LA JOLLA, CALIFORNIA HONOLULU LABORATORY LA JOLLA LABORATORY TIBURON LABORATORY"
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            "content": "MONTHLY REPORT-MAY 1974"
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            "content": "STATUS OF PUBLICATIONS-SWFC"
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            ],
            "content": "Alvariño, Angeles. 1974. Distribution of siphonophores in the regions adjacent to the Suez and Panama Canals. Fishery Bulletin (U. S.) 72 (2): 527-546."
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            "content": "In this paper, distribution is described of siphonophores in the regions adjacent to the Suez and Panama Canals based on material collected by Israeli cruises in the eastern Mediterranean and the Red Sea (Gulf of Elat) , and by Scripps Institution of Oceanography Expeditions in the Caribbean and the Pacific regions adjacent to the Panama Canal. Published information on the distribution of siphonophores in those areas and in adjacent regions is included as are distributional tables and maps."
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            "content": "MacGregor, John S. 1974. Changes in the amount and proportions of DDT and its metabolites, DDE and DDD, in the marine environ- ment off southern California, 1949-72. Fishery Bulletin (U. S.) 72 (2) : 275-293."
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            ],
            "content": "This paper is about the contamination of the ocean and its biota off southern California by the pesticide, DDT. The accumulation of DDT and the changes in proportions of DDT and its metabolites in the ocean are described for the years 1949 to 1972, especially as they are reflected in the myctophid fish, Stenobrachius leucopsarus. This time period was characterized by continuous dumping of DDT wastes into the ocean by a large manufacturer of DDT and the cessation of this dumping in 1970. Aspects and implications of the pesticide pollution problem in the marine environment are discussed."
        },
        {
            "spans": [
                {
                    "offset": 2673,
                    "length": 71
                }
            ],
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            ],
            "content": "This report does not constitute publication and is for information only"
        },
        {
            "spans": [
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                    "offset": 2745,
                    "length": 190
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            ],
            "boundingRegions": [
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                }
            ],
            "content": "Moser, H. Geoffrey and Elbert H. Ahlstrom. 1974. Role of larval stages in systematic investigations of marine teleosts: The Myctophidae, a case study. Fishery Bulletin (U.S.) 72(2): 391-413."
        },
        {
            "spans": [
                {
                    "offset": 2936,
                    "length": 301
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "The lanternfish family Myctophidae is the most widespread family of midwater fishes in the world ocean. As presently recognized it contains about 30 genera and 300 nominal species. Their larvae are highly prominent in the plankton and make up about 50% of all larvae taken in open-ocean plankton tows."
        },
        {
            "spans": [
                {
                    "offset": 3238,
                    "length": 554
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Studies of myctophid larvae, on a worldwide basis by Drs. Moser and Ahlstrom have demonstrated that characters of the larval stages of lanternfishes are of great utility in systematic analysis. The genera and species can be recog- nized on the basis of eye and body shape, the shape and length of the gut, pigment pattern, and the sequence of photophore development. In this paper the larvae of 55 species representing 24 genera are illustrated and used to demonstrate the usefulness of larvae in understanding the relationships of species within genera."
        },
        {
            "spans": [
                {
                    "offset": 3793,
                    "length": 162
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Rothschild, B.J. 1973. Questions of strategy in fishery management and development. Journal of the Fisheries Research Board of Canada, 30(12) , Part 2: 2017-2030."
        },
        {
            "spans": [
                {
                    "offset": 3956,
                    "length": 705
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "In this paper, Dr. Rothschild defines the subject of fishery management and development, and explores the thesis that to make significant advances in fishery management and de- velopment there is a need to be concerned with constructing and investing in institutions that are capable of asking the right questions in the area of resource management and de- velopment; developing the most efficient means for making proper decisions relevant to these questions; and developing the capability to carry out activities which will facilitate these decisions. The most striking concept offered in this paper is that fishery management and development seem to be more preoccupied with tactics than with strategy."
        },
        {
            "spans": [
                {
                    "offset": 4662,
                    "length": 27
                }
            ],
            "boundingRegions": [
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                }
            ],
            "content": "Approved by Center Director"
        },
        {
            "spans": [
                {
                    "offset": 4690,
                    "length": 182
                }
            ],
            "boundingRegions": [
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                    ]
                }
            ],
            "content": "\"Yield per recruit for multi-gear fisheries (MGEAR) , Burroughs 6700, FORTRAN IV\" by William H. Lenarz. For publication in the Transactions of the American Fisheries Society -- Note."
        },
        {
            "spans": [
                {
                    "offset": 4873,
                    "length": 134
                }
            ],
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            ],
            "content": "\"Schooling in the ecology of fish\" by John R. Hunter. For publication in the Transactions of the American Fisheries Society -- Review."
        },
        {
            "spans": [
                {
                    "offset": 5008,
                    "length": 1
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            ],
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            "content": "2"
        },
        {
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            ],
            "content": "ALBACORE FISHERY INVESTIGATIONS"
        },
        {
            "spans": [
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                    "offset": 5042,
                    "length": 83
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            ],
            "boundingRegions": [
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            ],
            "content": "Albacore Fishery Expected to be Centered North, but Outlook off California Improved"
        },
        {
            "spans": [
                {
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                    "length": 1383
                }
            ],
            "boundingRegions": [
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            ],
            "content": "Dr. Michael Laurs and his staff in the Albacore Fishery Investigations at the La Jolla Laboratory have issued the 14th annual forecast of the location of the 1974 albacore fishery. According to Dr. Laurs it appears that during the 1974 Pacific West Coast albacore fishery, approximately 60% of the catch will be taken in waters north of San Francisco and 40% in waters to the south. Catches off California are expected to improve this year over 1973 when the catch was divided about 80% north of San Francisco and 20% south, with most of the catch coming from waters off the Pacific Northwest. If 1974 is an \"average year,\" a total of 20,050 to 30, 350 tons of fish could be expected to be landed. This estimate of landings is based on the mean and standard deviation, 25, 200 and 5, 150 tons, respectively, of West Coast albacore catches for the period 1964-1973. The increase in fleet capacity that occurred in recent years and the possibility of an early start of the fishery this year could boost the 1974 catch above the \"average.\" An accurate pre-season prediction of how much fish will be caught during the 1974 season is difficult to make because of insufficient knowledge concerning the population dynamics of the North Pacific albacore and fish-ocean relationships. The outlook for albacore sportsfishing off southern California is good, based on offshore scouting reports."
        },
        {
            "spans": [
                {
                    "offset": 6510,
                    "length": 376
                }
            ],
            "boundingRegions": [
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            ],
            "content": "The forecast of the general distribution of the albacore fishery is based on predictive indices developed at the La Jolla Laboratory, which relate north-south geographic variations in the fishery with oceanographic and meteorological conditions during the spring months in certain offshore waters through which albacore migrate in their travel to the waters off North America."
        },
        {
            "spans": [
                {
                    "offset": 6887,
                    "length": 77
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            ],
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            ],
            "content": "Early Albacore Fishing Results Indicate Change in Catch Pattern and Abundance"
        },
        {
            "spans": [
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            ],
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            ],
            "content": "The 1974 cooperative NMFS-American Fisherman's Research Foundation (AF RF) albacore-oceanography survey began in late May. The research vessel, David Starr Jordan, with Oceanographer R. Lynn of the La Jolla Laboratory as scientific leader, left San Diego on May 20 and began working with the five AFRF-chartered albacore jigboats on June 4. Early findings by scientists on the Jordan showed complex frontal systems in the area between 30-41º north latitude, 137-139º west longitude. These"
        },
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            ],
            "content": "3"
        },
        {
            "spans": [
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            ],
            "content": "fronts were broken and quite different from those encountered during the previous 2 years. Albacore catches also reflected the complexity of the frontal system; catches were scattered and good fishing areas did not remain consistent. Nevertheless, fish were caught earlier closer to shore, and in larger numbers this year than last year."
        },
        {
            "spans": [
                {
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            ],
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            ],
            "content": "Dr. Michael Laurs, leader of the Albacore Fishery Investigations, with the assistance of Mr. Lynn and Dr. Clark, Meteorologist, completed a document on albacore tuna forecasting and monitoring at the La Jolla Laboratory which will form the basis of a manuscript for publication."
        },
        {
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            ],
            "content": "COASTAL FISH COMMUNITIES INVESTIGATIONS"
        },
        {
            "spans": [
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                }
            ],
            "boundingRegions": [
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            ],
            "content": "Differing Day-Night Patterns of Activity and Distribution of Planktivorous Fisheries Tied to Diel Variation in Nearshore Plankton"
        },
        {
            "spans": [
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                    "offset": 8243,
                    "length": 1189
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            ],
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            ],
            "content": "In the continuing investigations by the Tiburon Laboratory of nearshore recreational fishes, Dr. Edmund Hobson, Project Leader, has completed another segment of a study of the relationships between planktivorous fishes and plankton in nearshore waters. During May, as during earlier collecting periods, the nearshore plankton were sampled at different levels of the water column, day and night, at both new and full moon. Concurrent with both day and night plankton collections, and in the same location, the activities of fishes that feed on plankton were observed, and specimens were collected for study of food habits. These fishes are: the olive rockfish, Sebastes serranoides; the salema, Xenistius californiensis; the queenfish, Seriphus politus; the surf perch, Hyperprosopon argenteum; the kelp perch, Brachyistius frenatus; and the blacksmith, Chromis punctipinnis. All of these fishes, which are important sport species or prey of sport species, are being found to have strikingly different activity and distribution patterns between day and night, and these are being found to relate to equally striking day-night differences in the composition and distribution of the plankton."
        },
        {
            "spans": [
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            ],
            "content": "Dr. William McFarland, Cornell University, joined the Tiburon Laboratory group at Santa Catalina Island for 2 weeks during May. This joint effort will collect data and specimens for study of the visual pigments of kelp bed fishes as they relate to activity patterns of these fishes and to the spectral composition of light in the waters of their habitat."
        },
        {
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            "content": "4"
        },
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            "content": "COASTAL FISHERIES INVESTIGATIONS"
        },
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            "spans": [
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            ],
            "content": "Arrangements for Silver Salmon Pen Rearing Proceeding"
        },
        {
            "spans": [
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            ],
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            ],
            "content": "This project is being undertaken to determine the feasibility of rearing silver salmon in salt water pens at Tiburon for later release into San Francisco Bay. The project is being jointly conducted by U.C. Davis Sea Grant Extension, the San Francisco Tyee Club, the California Department of Fish and Game and the Tiburon Laboratory. Dr. Robert Brocksen, Research Physiologist, and Mr. Lloyd Richards, Biological Technician, are representing the Tiburon Laboratory on this project."
        },
        {
            "spans": [
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            ],
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            ],
            "content": "Salmon raised in salt water grow quite rapidly and we expect their weights will increase from 1/30th of a pound to 1/10th of a pound during 3 months of pen life. These large fish should produce a good return to the sport and commercial fisheries. This initial rearing will provide information on whether the salmon will remain in the Bay or spend the adult portion of their lives at sea. If they remain in San Francisco Bay, a new sport fishery will be created."
        },
        {
            "spans": [
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            ],
            "content": "The silver salmon, from California Department of Fish and Game's Mad River hatchery, will be inoculated for vibrio and tagged with coded wire tags at the hatchery during June. Shortly thereafter, they will be trans- ported to Tiburon and placed in a floating pen to be fed and nurtured. Release is expected to take place this fall."
        },
        {
            "spans": [
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            ],
            "content": "The project is an excellent example of cooperation between a university, a sportfishing club, and state and federal fisheries agencies."
        },
        {
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            ],
            "content": "Fishery Development:"
        },
        {
            "spans": [
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                    "offset": 11309,
                    "length": 805
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            ],
            "content": "Red Crab -- Biologist Susumu Kato, leader of the Fishery Development Task at the Tiburon Laboratory reports that the fishing vessel Lady Olga arrived in San Pedro on May 12 with a full load of 35 tons of ground and frozen pelagic red crab (Pleuroncodes planipes) . The trip was the fourth for the vessel and brought its total catch to about 115 tons. The catch was bought by the Lummi Indian Tribe and Domsea Farms. Both will include the ground crabs in the diet of pen-reared salmon to color the flesh. The Small Tribes Organization of Western Washington, an organization of Indian tribes, is obtaining good results with a feed mixture of Oregon moist pellets, red crabs, and shrimp waste. The added coloring of salmon flesh achieved reportedly raises the value of the salmon by about 25 cents per pound."
        },
        {
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            "content": "5"
        },
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            ],
            "content": "Twenty tons of red crabs caught during a previous trip were finally dried at Universal Packers in Oxnard in preparation for export to Japan. The crabs yielded a disappointingly low proportion of meal, about 12 percent. Much of the product apparently remained in the drying machinery. With larger quantities of crabs the yield is expected to be about 17 percent or better."
        },
        {
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            ],
            "content": "Pelagic red crab has potential for use in the following areas:"
        },
        {
            "spans": [
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            ],
            "content": "1. Coloring flesh of pen-reared salmon: This has proved effective and brings a good economic return to salmon farmers. Trout farmers have also indicated an interest in using red crabs."
        },
        {
            "spans": [
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            "content": "2. Pet food: This has proved feasible but high ex-vessel price prohibits use at present."
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            "content": "3. Human food, as flavoring and additive in a variety of products: A large potential market exists in Japan, but price and technological problems are obstacles to immediate use. A local fishcake manufacturer also would use red crab if a steady supply were available."
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            "content": "4. Chitosan and chitin, from the exoskeleton: This use holds good potential for large-scale use of red crabs, when coupled with any one of the above uses for the oils and proteins."
        },
        {
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            ],
            "content": "Research on products and market potential has been carried out at the Pacific Food Products Technology Laboratory and at the Tiburon Laboratory. Our role in the development of the red crab fishery has been to work with the fishermen in developing fishing gear and techniques, improving handling and storing methods, and acting as liaison between the producers and potential users. We have loaned fishing gear and a grinder to the Lady Olga and have accompanied the vessel on two fishing trips."
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            "content": "The goal of the project is to come up with a fishing and handling system that would enable fishermen to catch red crabs profitably at a price low enough to enable the various interested groups to use red crabs. Improve- ments of dockside handling and shipping methods, as well as product re- search are still needed to maximize efficiency."
        },
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            "content": "6"
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            ],
            "content": "Angler's Guide to the United States Pacific Coast"
        },
        {
            "spans": [
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                    "length": 433
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            ],
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            ],
            "content": "During May, the remaining sections of the Angler's Guide (Southern California, Oregon and Washington) were prepared for outside review. The Guide, which is being prepared by James L. Squire, Jr., of the La Jolla Laboratory, and Susan E. Smith, at the Tiburon Laboratory, will describe sport fishes, fishing grounds, and angler facilities all along the west coast from California to Alaska, including Hawaii, American Samoa, and Guam."
        },
        {
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            ],
            "content": "Review copies were received from the California Department of Fish and Game, the Guam Division of Fish and Wildlife, and the California Academy of Sciences. Reviewer's suggestions are now being incorporated into the text."
        },
        {
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            "content": "FISH ENVIRONMENT INVESTIGATIONS"
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        {
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            "content": "Experiments on Skipjack Tuna Metabolism Extended to Water Temperatures Above and Below 24ºC"
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        {
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            "content": "Productivity of the seas in terms of tuna flesh is dependent upon a supply of food adequate to provide the energy needed by tunas for growth and activity. Experiments have begun that will permit estimation of the energy required for routine activity of skipjack tuna at all temperatures where they are likely to occur. These are an extension of previously completed experiments on routine metabolism of skipjack tuna at a single temperature, 24°C, and are being conducted at the Honolulu Laboratory by Research Assistants Randolph Chang and Bernard Ito, under the supervision of Fishery Biologist Dr. William Neill."
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            "content": "A few experiments at above- and below-ambient temperatures have now been executed. Results suggest increased metabolism and faster swimming at higher temperatures , but variability within the small amount of data gathered so far prohibits quantification of the thermal effect. More experi- ments are underway."
        },
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            "content": "Tuna Behavioral Thermoregulation System Now Complete Except for Heater-Switching Assembly"
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            "content": "A unique apparatus for the study of tuna behavior in temperature gradients approximating those of the open ocean has been developed by Dr. Neill and Fishery Biologist Dr. Andrew Dizon of the Honolulu Laboratory. Termed"
        },
        {
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            "content": "7"
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            "content": "the tuna behavioral thermoregulation system, it is a doughnut-shaped, 8000-liter tank whose temperature is controlled automatically by a tuna's direction and speed of swimming in the circular channel. By reversing direction in the tank, a tuna may raise or lower the temperature of the water to its liking. An understanding of the temperature is thought to be a major factor limiting tuna distribution and abundance in the world's oceans ."
        },
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            ],
            "content": "Construction of the system is now complete except for the heater-switching assembly, where a design error has caused a 4-6 week delay in start-up. The contractor is rebuilding the assembly."
        },
        {
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            ],
            "content": "Also planned for the doughnut tank are a series of experiments to explore the orientation and regulatory responses of tunas to gradients of food. These experiments, briefly underway, were interrupted for the past month so that the thermoregulation system's temperature-controlling parts could be installed and tested."
        },
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            "content": "Island Wake Data Analysis Nears Completion"
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            ],
            "content": "The island wake studies are aimed at understanding the influence of islands, banks, and seamounts on the nearby ocean, influence which might account for the association of many high seas fisheries with such features. The working hypothesis is that currents, as they flow past these obstacles, generate mixing and local upwelling that enriches the water downstream, and that this enrichment eventually attracts large predators of interest to fishermen."
        },
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            ],
            "content": "Data from the first Line Island field study have been almost completely analyzed, and a report is being prepared. Data from the second cruise are still being worked on. NOAA Corps Officer Lt. Bruce Crumley, assigned at present to the Honolulu Laboratory, has been analyzing the data from five Townsend Cromwell equatorial cruises upstream of the Line Islands to look for relationships between the many sets of observations made during these cruises. These include meteorological observations, ocean- ographic station and other data, and a variety of biological observations. No new clear-cut relationships have been established."
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            ],
            "content": "Dr. Richard A. Barkley, Oceanographer and Chief of the Fish-Environment Investigations at Honolulu, prepared a summary chart showing surface and near-surface currents in the western South Pacific, in response to an outside request."
        },
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            "content": "8"
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            "content": "Recreational Fisheries Report Completed"
        },
        {
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            ],
            "content": "Fishery Biologist Heeny Yuen completed a report on marine resources and habitats in the State of Hawaii for the Hawaii Water Resources Regional Study. He also completed a paper for the baitfish workshop entitled \"Desired characteristics of a bait for skipjack tuna.\" Mr. Yuen was coordinator of the Honolulu Laboratory's extremely successful Makahiki Kai display. Also in the month of May, the Recreational Fisheries group under the leadership of Mr. Yuen, completed all preparations for tracking yellowfin tuna in waters of leeward Oahu by the scheduled departure date of June 1."
        },
        {
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            "content": "MARINE MAMMAL INVESTIGATIONS"
        },
        {
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            "content": "Program Manager Serves as Scientific Advisor at DEIS Hearings"
        },
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            ],
            "content": "Dr. Eric Barham, Porpoise Program Manager at the La Jolla Laboratory, served as scientific advisor at the Draft Environmental Impact Statement (DEIS) hearings on porpoise held at the Customs Building at Terminal Island, California on May 9, 1974. The hearing officer was Mr. Joseph R. Blum, NMFS, Washington, D.C .; Mr. Martin Hockman, a staff attorney for NOAA, functioned as the legal officer."
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            ],
            "content": "Written statements were accepted, oral presentations were heard and questions accepted through the hearing officer. Representatives of the tuna industry, unions, and major conservation groups such as \"Project Jonah, \" the Environmental Defense Fund, and the American Cetacean Society presented their views on the DEIS which had been prepared by the NOAA-NMFS staff in Washington, D.C."
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            ],
            "content": "As a result of these hearings, Mr. William Jensen, Office of Resource Management, NMFS, Washington, D.C. is scheduled to visit the Center in mid-June to discuss revisions in the DEIS with the staff of the Marine Mammal Investigations."
        },
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            "content": "Technical Meeting on Program for Analysis of Porpoise Population Dynamics Held at Southwest Fisheries Center"
        },
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            "content": "A meeting at the La Jolla Laboratory on May 31 to look at what research needs to be done on porpoise population dynamics and to consider how to go about doing it brought together members of the Committee of Scientific Advisers to the U.S. Marine Mammal Commission, the tuna"
        },
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            "content": "9"
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            "content": "industry, representatives of the Inter-American Tropical Tuna Commission, and government scientists responsible for analyzing the data on porpoise population dynamics. The group discussed estimates of kill, indices of abundance, estimates of gear-dependent mortality, possibilities of a tagging program, and learning behavior of porpoises. They agreed on the magnitude of the task to be accomplished in order to obtain as complete as possible an understanding of porpoise population dynamics, suggested that the analytical possibilities of the data on hand be exhausted, and proposed how these data be treated. It was evident from the discussion that the currently available NMFS resources of monies and manpower at La Jolla are inadequate to respond completely to the requirements of the Marine Mammal Act within the allotted time, but that every effort possible will be made to come up with valid conclusions and an October report on the impact of the tuna fishery on porpoise populations."
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            ],
            "content": "The La Jolla Laboratory has been sending trained porpoise observers to sea on tuna seiners of the U. S. fleet to collect information on porpoise life history and mortality, and to observe the operation of porpoise-saving gear and techniques. As of this writing 34 observer trips have been com- pleted within the Commission Yellowfin Regulatory Area (CYRA) in 1974. The data taken by the porpoise observers are considered the primary source of information in estimating numbers of porpoise killed in the tuna fishery. Three observers are still at sea, all on their second trips of the 1974 yellowfin tuna fishing season. Dr. Eric Barham, Porpoise Program Manager, is still continuing his efforts to obtain rides for six more observers to accompany tuna seiners on trips outside the CYRA."
        },
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            ],
            "content": "Very few sets on porpoise have been recorded by observers who have returned from second trips as a strong school fish (tuna unaccompanied by porpoise) run has developed. Preliminary figures from the 1974 por- poise observer data indicate that the total mortality of porpoise in 1974 will be reduced over the 2 previous years."
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            "content": "In order to meet the October 1974 deadline for a \"final\" report on the impact of the tuna fishery on porpoise populations, all available resources of manpower in the Marine Mammal Investigation at La Jolla have been mobilized to process and analyze the data on porpoise resulting from the observer cruises, aerial survey, marine mammal logs, Jordan cruise, and others. Dr. Tim Smith, Fishery Biologist, who has the primary"
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            "content": "10"
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            ],
            "content": "responsibility for analyzing these data is presently involved in making an estimate of porpoise density based on the aerial survey material. Mr. William Clark of the University of Washington, working for the Marine Mammal Commission, is slated to complete the mortality estimates begun by Dr. Gary Stauffer, who has been re-assigned in the laboratory to work up assessments of important coastal fishes."
        },
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            ],
            "content": "Drs. E. Barham, Porpoise Program Manager and Dr. B. Rothschild, Center Director, attended the formal hearings held in Seattle, May 13-15 to discuss proposed regulations on gear which may be used in the porpoise fishery. The hearing judge was Mr. Harry P. McAlpin, Department of Agriculture. Representatives of NMFS, environmental groups, and the tuna industry presented their views of NMFS-recommended porpoise- saving gear."
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            ],
            "content": "During the course of the hearings, a ruling was made by the judge that the Environmental Impact Statement submitted by NMFS was not required by the provisions of the Marine Mammal Protection Act of 1972 but was required under existing Environmental Protection legislation; in that context it would be circulated to all federal agencies for comment."
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            "content": "According to Dr. Barham, all sides will be given 15 days to prepare briefs on their views for submission to Mr. McAlpin, who will then make a recommendation to NMFS Director Schoning to either accept, reject, or modify the proposed gear regulations as set forth by NMFS on April 5."
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            "content": "PHYSIOLOGY INVESTIGATIONS"
        },
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            "content": "Uptake and Accumulation of Crude Oil Components by Juvenile Herring Studied"
        },
        {
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            "content": "As part of the Oil Physiology Program that has been studying the effects of crude oil components on various life stages of several species of fishes, accumulation and depuration of xylene by juvenile herring is being investigated. Sid Korn, Fisheries Biologist, and Nina Hirsch, Biological Aid at the Tiburon Laboratory, exposed juvenile herring to isotope-labeled xylene ranging in concentration from 0.9-1.9 parts per million. Brain, liver, and muscle tissues were excised from the fish and the two researchers found the accumulation to be highest after approxi- mately 6 days of exposure. At the end of the 24-day exposure period, the"
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            "content": "11"
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            "content": "concentrations of xylene were considerably lower than any other time during the experiment, although 8 days after termination of the experiment, some benzene and toluene were noted in the tissues of the exposed fish. The accumulated residues were rapidly lost, but there are indications that the xylene was being metabolized to benzene and toluene, two aromatic hydro- carbons found in crude oil. Methods for detection of possible toxic metabolites are presently being investigated and should aid in further definition of potential problems surrounding exposure of fish to crude oil."
        },
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            "content": "New Analytical Techniques Evaluated for Aid in Oil Investigations:"
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            "content": "Mr. Peter Benville, Research Chemist at the Tiburon Laboratory, attended the International Marine Oil Pollution Monitoring at the National Bureau of Standards in Maryland during the early part of the month. As a result of his attendance, he is developing new techniques involving spectro- photofluorometry in the analyses of aromatic hydrocarbons found in crude oil. Because of the highly toxic and volatile characteristics of these compounds, extremely precise techniques are needed. Benville has found the flourometry method to be 10-100 times more sensitive than the colorimetry method often used, and many times more rapid than gas chromatography. This type of method development is crucial when field measurement for aromatics is necessary in areas of chronic or acute oil contamination. As an example of the contribution such methodology could add, 120 water samples take approximately 20 man-hours of analysis using gas chromatography. The same 120 samples could be processed in 3-4 hours using the flourometer."
        },
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            "content": "STOCK ASSESSMENT AND FISHERY EVALUATION INVESTIGATIONS"
        },
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            "content": "National Weather Service to Participate in FAX Program at La Jolla"
        },
        {
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            "content": "The FAX weather advisory program at the La Jolla Laboratory is now re- ceiving direct assistance from the National Weather Service's (NWS) forecast office in Redwood City, California. The SWFC program provides wind, weather and sea state forecasts by radio facsimile transmission to tropical tuna fishermen who reciprocate by reporting to SWFC scientists on environmental conditions in the fishing grounds. NWS has completed installation of a data line from Redwood City to SWFC, La Jolla and radio station WWD, according to task leader L. Eber, and the initial test trans- missions of NWS weather advisory charts, received over the line by WWD, were scheduled for the first weekend in June. FAX advisories are not normally broadcast on weekends due to staff limitations. After a suitable period of evaluation and testing, the NWS FAX advisories will be broadcast daily."
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            "content": "12"
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            "content": "Mr. J.F.T. Saur, Oceanographer at the La Jolla Laboratory, reports this month that the first test of a procedure to estimate dynamic height profiles from XBT observations along the track from San Francisco to Hawaii has been completed. The currents and volume transport normal to the section can be computed from these profiles. Since dynamic heights depend not only upon the subsurface distribution of temperature but also of salinity, the procedure is based upon a two-layered model to estimate the salinity structure. The model assumes that the temperature-salinity relationship is linear in the layer from the surface to a point below the thermocline and that it follows an appropriate polynomial curve fitted to historical data in the lower layer. The total calculations, using mean January subsurface XBT temperature data, appear satisfactory for the California Current region and the Eastern North Pacific Central waters. However, some further criteria on the salinity and density structure will have to be developed for the complex Transition Zone before the procedure is considered ready for routine computations on a computer."
        },
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            "content": "Drift Subroutine Completed"
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            "content": "Mathematician A. Coan of the La Jolla Laboratory, with the assistance of Mr. K. Brennecke, Mathematical Technician, has developed a subroutine for the stock recruitment model which determines whether or not a fish larvae has drifted onto shore or out of the area in which the larvae can survive. More than usual attention was paid to efficiency in developing the subroutine because it will be used frequently during the development and production run phases of the model project. A sample from a pre- liminary compilation of historical ship drift data of the California Current region has been received from Mr. Craig Nelson of the Pacific Environ- mental Group in Monterey. These data will be used by Mr. J. Zweifel and Dr. W. Lenarz at the La Jolla Laboratory to simulate drifting of fish larvae in the upper mixed layer for the first version of the stock recruit- ment model. It was not possible to make complete specifications for the ship drift data when arrangements were first made with the PEG because of unfamiliarity with the data. Specifications have been drawn up for a sample from a second compilation which will hopefully allow final speci- fications to be made for the ship drift data. While the ship drift data will be useful for developing the stock recruitment model, it is anticipated that another set of data on the movement of surface water that is being compiled by PEG will provide basis for a more realistic simulation of the drift of fish larvae. The set of data will be calculated from wind and density measurements and is due to be completed in 1 or 2 years."
        },
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            "content": "13"
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            "content": "Production Model with Density-Dependent Catchability Completed"
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            "content": "Dr. William Fox, Leader of the SAFE Investigations at the La Jolla Lab- oratory, has completed a portion of the analyses he will present at the International Commission for the Conservation of Atlantic Tunas (ICCAT) Population Dynamics Workshop to be held in Nantes, France, in September this year. The effect of a density-dependent catchability coefficient on the equilibrium relationships of the generalized stock production model has been worked out and a computer program, PRODQ, has been written to estimate the parameters from fishery catch and fishing effort data. Pre- liminary application of the model to the California sardine data provided parameters indicating greatly increased catchability with depressed popu- lation size could have occurred, as a number of scientists have hypothesized. The parameters also indicate that the collapse of the fishery could possibly have been due solely to fishing and that it could take a virtual moratorium on fishing, as has been enacted, to replenish the stock. These results do not deny other hypotheses, but do further support the tenability of the fishery-caused hypothesis."
        },
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            "content": "IATTC Technical Support Analyses Continue"
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            "content": "Drs. William Lenarz and William Fox, Fishery Biologists at the La Jolla Laboratory, devoted a considerable proportion of the month to an analysis of alternative management systems for the IATTC. The work includes examination of the impact of further growth of the already large tropical tuna fleet on the possibility of continuing the present system of having an open season and last free trip. A draft report entitled \"A preliminary analysis of alternative management systems for the eastern Pacific yellowfin tuna fishery\" has been prepared."
        },
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            "content": "White Seabass Preliminary Analyses Completed"
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            ],
            "content": "Alec McCall, Fishery Biologist (CF&G) , and Gary Stauffer, Fishery Biologist (NMFS) , working at La Jolla under a cooperative CF &G/NMFS research contract, have prepared a preliminary report for CF &G on the yield per recruit of white seabass, Cynoscion nobilis, exploited by com- mercial gill netters and recreational fisheries. New values for the natural mortality rate and size specific fishing mortality rates were estimated from 1973 catches and age distribution of data. Yield per recruit as a function of size at first capture at various levels of existing commercial fisheries was evaluated. The report will be updated with additional information in the future. Similar analyses will be performed on many other marine rec- reational/commercial California fisheries."
        },
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            "content": "14"
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            "content": "California Marine Fisheries Data Compiled"
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            "content": "Commercial catch data for 16 California marine fishes by month and region have been punched on cards in order to make comparisons of catches between areas and month. Bruce Wahlen, Mathematical Technician, has written a program to edit the data file created by CF &G annual catch bulletins. The project's seasonal aid at CF &G in Long Beach has completed compilation of live bait and long-range party boat catch and effort data."
        },
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            "content": "Brazilian Scientist Analyzing Atlantic Tuna Data"
        },
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            ],
            "content": "Mr. L.A. Zavala-Camin, Scientific Researcher with the Instituto de Pesca, Santos, Brazil, who is on a training mission at the La Jolla Laboratory, spent the month working with Dr. G. Sakagawa of the Stock Assessment and Fishery Evaluation Investigations. Mr. Zavala-Camin is analyzing data on the Brazilian longline tuna fishery. His analyses so far have indicated that the Brazilian catch of tuna is highest in the second and third quarters of the year and yellowfin tuna make up about 80% of the annual catch in number. Catch rates for 1972 and 1973 were about two to three tuna/100 hooks/quarter. In contrast, the tuna catches of the Japanese longline fleet off Brazil are highest in the second quarter of the year, with albacore tuna making up the bulk of the catch (yellowfin represent only about 8% of the catch) . The Japanese catch rates are about four tuna/100 hooks/quarter."
        },
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            ],
            "content": "Analysis of Growth Data of Laboratory-Reared Northern Anchovy"
        },
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            "content": "Fishery Biologists M. Kimura and G. Sakagawa of the La Jolla Laboratory, have assembled and begun analysis of extensive data on age and growth of laboratory-reared northern anchovy. Their objective is to derive an average growth curve for northern anchovy reared in the laboratory."
        },
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            "content": "American Catch at Various Distances off West Africa Estimated"
        },
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            ],
            "content": "Virtually all the U.S. catch of Atlantic tropical tunas (yellowfin and skip- jack) are annually made off West Africa. The distance from shore at which the catches are made is of interest in understanding the population biology of the tunas as well as in formulating management strategies. Fishery Biologist G. Sakagawa of the La Jolla Laboratory, reports that estimates of Atlantic tropical tuna catches made by American vessels in 1968-72 at various distances off West Africa have been made. The estimates in terms of percentage of total catch for three zones -- (1) shore to 12 miles, (2) shore to 100 miles and (3) shore to 200 miles -- are as follows:"
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            "content": "15"
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            "content": "Zones"
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            "content": "Range of percent catch by species Yellowfin Skipjack"
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            "content": "11-30"
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            "content": "15-31"
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            "content": "50-77"
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            "content": "60-86"
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            "content": "3"
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            "content": "74-94"
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            "content": "82-98"
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            ],
            "content": "In all years a greater percentage of skipjack tuna than yellowfin tuna was caught close to the West African shore and a high percentage of the American catches was made within 100 miles of the coast. Mathematical Technician K. Brennecke and Mathematician A. Coan assisted in calculating the estimates."
        },
        {
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            ],
            "content": "STOCK AND RECRUITMENT INVESTIGATIONS"
        },
        {
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            ],
            "content": "Mr. Keiichiro Mori of the Far Seas Fisheries Research Laboratory of Shimizu, Japan, finished 11 months of study at the SWFC Laboratory at La Jolla and departed for the Honolulu Laboratory on May 20, where he plans to spend 1 month before returning to Japan. Mr. Mori was studying identification of fish eggs and larvae under the direction of Dr. Ahlstrom."
        },
        {
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            ],
            "content": "Mr. Art Kendall of the NMFS Laboratory at Sandy Hook, New Jersey, spent May 28-31 at the SWFC and took and passed preliminary examinations for a Ph. D. at the Scripps Institution of Oceanography. Dr. R. Rosenblatt and Dr. Ahlstrom are co-chairmen of his doctoral committee. Mr. Kendall is working on life history studies on seabass (family Serranidae) , and has found that each of the four subfamilies of serranids represented in the fauna of both U. S. coasts (Atlantic and Pacific) , have characteristic larvae that are strikingly different from subfamily to subfamily."
        },
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            ],
            "content": "Fishery Biologist G. Moser at the La Jolla Laboratory, reports continued progress on preparation of the identification guide to scorpion fish larvae. A series of redfish larvae from off New England was provided for study by the Narragansett Laboratory. Examinations of these taxonomic character- istics revealed differences between these larvae and those of Sebastes marinus described by Taning. This lends support to the notion that the redfish off the American coast is specifically distinct from Sebastes marinus found in other regions of the north Atlantic."
        },
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            ],
            "content": "The larvae of a particularly abundant eastern Pacific rockfish, S. jordani, was illustrated, and the description is now being completed. The larvae of this species bear a remarkable resemblance to those of North Atlantic species of Sebastes. With the Sebastes section of the manuscript nearly completed the briefer descriptions of the larvae of other eastern Pacific scorpionfish larvae will be initiated."
        },
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            "content": "16"
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            ],
            "content": "Dr. E. Ahlstrom, Senior Scientist at the La Jolla Laboratory, reported that work continued on assembling series of specimens, descriptions and illus- trations of larvae of California Current fishes for inclusion in a handbook dealing with life history series of California Current fishes. Work is pro- gressing on stromateoid fishes, and on flatfishes (Citharichthys sand dabs) ."
        },
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            ],
            "content": "The neuston samples obtained on extended Cruise 7205 are being identified and tabulated. Dr. Ahlstrom and Biological Technician Betsy Stevens plan to co-author a paper dealing with the neuston hauls. Larvae of several fishes are taken in the surface neuston hauls in much greater abundance than in the standard oblique plankton hauls, including the Pacific saury and the sablefish. Anchovy larvae also are taken in abundance in neuston hauls."
        },
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            "content": "NOAA Researcher Verifies View that Fish Derived from Benthic Types do not Adapt Ram Mode of Gill Breathing"
        },
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            ],
            "content": "Modes of gill ventilation have been examined this month in a variety of marine fish at rest and during swimming above and below speeds necessary to support ram ventilation. Dr. John L. Roberts, NRC-NOAA Research Associate at the La Jolla Laboratory, reports further verification of the view that fish derived from benthic types which have well-developed branchiostegal systems do not adopt the ram mode of gill breathing."
        },
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            "content": "Functionally, the action of the branchiostegal membranes and supporting bony rays forms a flexible basket around the ventral-to-mid-posterior margins of the opercular covers, greatly facilitating the aspiration of water through the gills during opercular abduction. Typically, the com- bined system provides a slow respiratory cycle of large stroke volume. It is a system well designed for breathing in still water by slowly swimming, opportunistic predators. Consequently, the swimming drag resistance with each cyclic, lateral expansion of the branchial basket contributes little to the metabolic cost of respiration for those fish that depend largely on the opercular aspiration phase of active gill breathing (90+% in time) ."
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            ],
            "content": "The slow swimmers examined were the narrow-headed rockfish of bass-like form (olive rockfish, Sebastes serranoides, and bocaccio, Sebastes paucispinis) and the kelp bass (Paralabrax clothrus) . None were found to adopt ram venti- lation despite their abilities to swim well above speeds necessary to sustain ram ventilation. The reflex mechanism for switching ventilation modes seems to be incomplete in these species ."
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            "content": "17"
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            "content": "The fast swimmers studied, the striped bass (Morone saxatilis) and the jack mackerel (Trachurus symmetricus) have reduced branchiostegals and respiratory cycles shared about equally in time by the buccal and opercular pumps. Both species convert to ram ventilation at speeds about 50 cm-sec-1."
        },
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            "content": "Continuing probing of the respiratory center with extracellular recording electrodes has provided a provocative observation in one bocaccio, which turned up quite by accident due to slight electrode movement while the plastic cranial plug was hardening. A single large neuron appeared that was firing randomly against the background bursting of respiratory inter- neurons. It developed that this neuron increased in firing frequency when the tail was deflected to the fish's right and went silent as the tail was deflected left. During swimming at moderate speed, short bursts occurred, synchronous with the tail beat frequency. Does the activity of such neurons provide essential information for the reflex conversion of breathing modes in ram-ventilating fish?"
        },
        {
            "spans": [
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            "content": "Fresh Water Shown Not to be Essential Prerequisite for Gonad Maturation in Striped Bass"
        },
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            "content": "To increase the supply of striped bass, a sought-after sportfish, the CF &G would like to be able to spawn and rear striped bass in sea water hatcheries. In February 1973, a collaborative effort between the Inland Fisheries Branch of CF &G and the La Jolla Laboratory to accomplish this in sea water was begun, using the facilities of the sea water aquarium at the SWFC."
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            ],
            "content": "Mr. K. Lal of the California Department of Fish and Game (CF &G) and Dr. R. Lasker of the La Jolla Laboratory, report that further attempts at induced maturation of gonads of striped bass in sea water culminated in the successful spawning of one 3.6 kg female this month after a prolonged interval of 5 weeks from the time a first hormone injection was administered. Earlier spawning was not possible as this fish was found with blood patches on the scales along the lateral line due to a sudden outbreak of disease in its tank. The fish was treated with Terramycin injections and allowed to recover fully before administering the second hormone injection to induce spawning. The very low percentage of ripe eggs obtained could be attributed either to the effect of the drug itself or to the absence of required controls in the tank where all diseased fish were segregated, etc. As an interim test about 100 eggs were stripped and fertilized to see if any larvae would hatch. A dozen larvae hatched, and most of them soon died but one survived. Despite this low viability the production of viable eggs and sperm and larvae from fish matured in sea water has been demonstrated. This fish and others matured earlier show that fresh water is not an essential prerequisite for the complete sexual maturation and spawning of striped bass."
        },
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            "content": "18"
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            "content": "With the success in maturation of gonads of striped bass both in sea water and 50% sea water, the experiment for maturation of gonads in fresh water and 50% sea water has been terminated, after 5 months. Biopsy of fish in all tanks showed that the majority of females this month are at the immature stage with little or no yolk. Efforts to speed up the maturation process in immature females by giving varying doses of gonadotrophin have produced negative results. The number of mature males in all the tanks has gone up to 17 and a large number of them are in ripe condition."
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            "content": "Pacific Mackerel Successfully Reared from Egg through Metamorphosis on Laboratory-Cultured Food at La Jolla"
        },
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            "content": "Dr. J. Hunter, Fishery Biologist at the La Jolla Laboratory, reports that he and Carol Sanchez, Biological Technician, have successfully reared from the egg through metamorphosis the Pacific mackerel, Scomber japonicus. This is the first time mackerel have been reared through metamorphosis on a laboratory cultured food, under controlled conditions. At the age of 18 days the larvae had become juveniles and had an average length of 17.8 mm. The percent survival at 18 days of age was 4% but this is an underestimate because 15 larvae were removed every other day for length/ weight measurements. Eggs were obtained from a laboratory population of mackerel brought to breeding conditions by Mr. Roger Leong."
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            "content": "*"
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            ],
            "content": "Dr. Lasker presented an outline of future CalCOFI survey work to the Marine Research Committee of the State of California on May 17. His request that the Committee purchase a particle counter and sizer for laboratory and ship work was approved by the Committee."
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            "content": "A first draft of a paper describing observations of dense concentrations of a larval food organism, Gymnodinium splendens in the chlorophyll maximum layer over the 20-fathom mark in the Los Angeles Bight was completed by Dr. Dale Kiefer of SIO and Dr. Lasker this month."
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            ],
            "content": "Experiments to determine the threshold concentration for feeding by anchovy larvae on Gymnodinium were completed by Dr. Lasker and Ms. Setzler this month. At 17-18°C first-feeding anchovy larvae drop in feeding efficiency at 20 food particles per milliliter. This information is needed to assess the feeding results obtained with first-feeding concentrations."
        },
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            "content": "19"
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            ],
            "content": "Virtually all the particle counts taken at sea in March, April, and May in a search for anchovy larval feeding areas, have been verified with the inverted microscope. Additional information on phytoplankton species composition of chlorophyll maxima was also obtained."
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            "content": "Larval Growth Paper Completed"
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            ],
            "content": "A manuscript, \"Prenatal and postnatal growth of fishes - a general model\" by Jim Zweifel, Mathematician, and Reuben Lasker of the La Jolla Lab- oratory, has been completed. The paper examines the temperature specific development of several species in the early larval stage and presents a five-parameter Gompertz-type growth model to describe events from fertilization through depletion of the yolk-sac."
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            "content": "SURVEY SYSTEMS ANALYSIS INVESTIGATIONS"
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            ],
            "content": "Dr. Robert Owen, Oceanographer at the La Jolla Laboratory, has com- pleted a time series of the Southern California Eddy by computing and plotting variations of his index of the offshore component of geostrophic flow, as measured by the variation of dynamic slope across the north- south axis of the Eddy. Plans were formulated to develop and compute water column stability, geostrophic flow shear, and vertical mixing rate from CalCOFI oceanographic data, also to be extended as time series."
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            ],
            "content": "Dr. Owen has completed a manuscript entitled, \"Distribution of primary production, plant pigments, and Secchi depth in the California Current region, 1963.\" The work is to be published together with nutrient dis- tributions as CalCOFI Atlas No. 20, to provide working charts of phyto- plankton dynamics of the region. Distributions show clearly the influence of coastal upwelling and the Southern California Eddy, and the existence and character of seasonal variations."
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            "content": "Net Avoidance Demonstrated for Young Larvae"
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            ],
            "content": "Dr. Paul Smith at the La Jolla Laboratory, has produced a comparison of the numbers of larvae, in various size classes, that were taken in CalCOFI plankton tows during February 1970. These numbers vary throughout the day for size classes of 3.75, 5.75, 7.75, and 9.75 millimeters, and for the total number of anchovy larvae retained. Natural mortality and a de- veloping capability for net avoidance account for the decrease in numbers of larvae captured with age; however, the most striking information developed is the decrease in number of larvae retained during the daylight hours."
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            "content": "20"
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            ],
            "content": "The decrease is not significant for the 3.75 mm class. The diurnal dip is first noticed on the line representing larvae 5.75 mm in length and becomes more pronounced as the larva length increases. It may be sig- nificant to note that eye pigmentation occurs at that stage of development when the larvae is between 3.75 and 5. 75 mm in length."
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            ],
            "content": "Sportfish Distribution Induced by Climatic Changes"
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        {
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            ],
            "content": "The CalCOFI collections of the larvae of inshore sportfishes are not very large, but the larvae are present in sufficient numbers to permit develop- ment of census estimates of their regional abundance and to indicate trends in their distributions as they were affected by climatic changes."
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            ],
            "content": "To demonstrate this, Dr. P. Smith and David Kramer, Fishery Biologist at La Jolla, have summarized sportfish larvae data for the cold (1954) and warm (1958) years off Baja California and Southern California. The sum- maries show that the climatic changes induced northward shifts in the distributions of the centers of abundance of the spawning populations of a number of these fishes, e.g. , Cynoscion nobilis (white seabass), Sphyraena argentea (California barracuda) , Seriola dorsalis (California yellowtail) and Paralichthys californicus (California halibut) :"
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            "content": "Region"
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            "content": "White seabass 1954"
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            "content": "1958 (x106)"
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            "content": "California barracuda 1954 1958 (x106)"
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            "content": "California yellowtail 1954 (x105"
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            "content": "1958"
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            "content": "California halibut 1954 (x105"
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            "content": "Central California"
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            "content": "0.3"
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            "content": "Southern California"
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            "content": "7"
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            "content": "37.1"
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            "content": "1.01"
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            "content": "Baja California"
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            "content": "Sebastian Vizcaino Bay"
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            "content": "Cape San Lucas"
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            "content": "1958"
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            "content": "21"
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            "content": "California Cooperative Oceanic Fisheries Investigations (CalCOFD) Review Nears Halfway Mark"
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        {
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            ],
            "content": "As the halfway point of the 2-year CalCOFI analysis project approaches, investigation members, led by Dr. Paul Smith, are specifying the docu- mentation of data series, outlining the computation of indices analyzing specific segments of data and projecting postulated relationships to the entire CalCOFI data time series. Having completed a review of historical research activities, methods and publications, the group is now examining the large mass of biological, oceanographic, and meteorological data in preparation for the production of a final report evaluating the success of the CalCOFI program and outlining future research needs."
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            "content": "TUNA ASSESSMENT AND DEVELOPMENT INVESTIGATIONS"
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            "content": "Second Trial Anchovy Shipment Overcomes Setbacks and Flaws in System to Successfully Deliver 500 Pounds of Baitfish to Hawaii"
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        {
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            ],
            "content": "Skipjack tuna fishing by the pole-and-line method in the central and western Pacific is limited in its development by a limited supply of live bait. While skipjack tuna is recognized to be underutilized in these areas, expansion of the fisheries is dependent upon an increase in the available amount of bait. The Honolulu Laboratory is experimenting with one way to augment the supply: shipping in a suitable bait using a baitfish transport tank."
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        {
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            ],
            "content": "On May 15 the team of Roger Green, Leader, Baitfish Program; Donald Aasted, Fishery Methods and Equipment Specialist; and Reginald Gooding, Fishery Biologist, started preparations in Long Beach Harbor for the second trial shipment of anchovy from California to Hawaii. The tank was initially loaded with an estimated 1, 600 pounds of anchovy (228 7-pound buckets) . The fish, 13-15 cm in total length (30 fish to a pound) , were generally larger by 2-3 cm than those obtained in April for the first trial shipment. These fish were reported to be in excellent condition when loaded into the transport tank. It was noted that the new \"vacuum cleaner\" system devised to remove dead bait from the tank -- in effect, a siphon -- was spewing out a large proportion of live fish, but it was hoped that the fish thus extruded were weak and near death, and thus unable to avoid the suction in the system. By the morning of May 18, a carefully measured 773 pounds of fish, both dead and alive, had been expelled from the tank by the vacuum system."
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            "content": "22"
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            ],
            "content": "At that time an estimated 500 additional pounds of anchovy were added to the tank, bringing the tank population up to an estimated 1, 300 pounds. (Mortality alone can be accurately measured.) When the tanker was moved to the fish-loading point, the filter of the closed system clogged, resulting in the near-suffocation of the entire load. But it rolled aboard Matson's RO/RO (roll-on/roll-off) vessel Matsonia on the following day and the ship departed Long Beach at 1400. Mr. Gooding accompanied the tank, which then held approximately 1, 100 pounds of anchovy."
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            ],
            "content": "According to records kept by Mr. Gooding of the daily \"mortality, \" including fish that were still alive when expelled, there were about 150 pounds per day lost during the first 3 days of crossing. On the 4th day, May 23, only 10 pounds of fish were lost. Considering the known mortality, there were roughly 650-700 pounds of anchovy surviving."
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            ],
            "content": "The Matsonia arrived at Matson's new RO/RO facilities at Sand Island, Oahu at 1400, May 23. Two tugboats, turning the ship around in the narrow basin, stirred up the muddy bottom of the harbor. This water entered the tank through the open system and caused a sharp drop in dissolved oxygen. The condition was corrected by Mr. Gooding with the addition of pure oxygen."
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            "content": "The remaining anchovy was estimated at 500 pounds, so the original estimate must have been off by 200 pounds. Estimations of the amount of anchovies continue to be a problem."
        },
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            ],
            "content": "Work has begun on improvements to the bottom vacuum system to reduce live fish entrapment by it."
        },
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            "content": "A third shipment of live anchovy is planned for next month."
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            "content": "Northern Anchovy as Live Bait Produce Good Tuna Catches in Hawaii"
        },
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            ],
            "content": "The anchovy from the first trial shipment, about 12-15 buckets, were used by the commercial fishing vessel Anela May 10 and 11. The anchovy were used to chum and fish yellowfin tuna; 150 fish were caught, weighing an average of 20 pounds. The Anela fishermen were quite enthusiastic about the anchovy, but felt that the skipjack tuna seen on those two fishing days were too small (5-7 pounds) to be fished with anchovy."
        },
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            ],
            "content": "Aku boats Angel and Buccaneer were selected by drawing to receive the the anchovy brought to Honolulu on the second trial shipment. The Angel"
        },
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            "content": "23"
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            ],
            "content": "took 20 \"heavy\" buckets of anchovy (estimated 12 pounds to a bucket) on May 25 and, along with 15-20 buckets of nehu, went fishing on May 26, with Research Assistant Thomas Kazama as observer. Beginning at 0610, four schools of medium-sized (8-12 pounds) skipjack tuna were fished using nehu for the most part, for a total catch of 573 skipjack tuna. Fishing was terminated at 1240 with a catch of approximately 8,000 pounds of skipjack tuna. Only about four buckets of anchovy were used during the day, since the schools were small and required relatively more bait to fish. The fishermen felt that anchovy are hardy and could be maintained until large schools of large skipjack tuna were seen."
        },
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            ],
            "content": "The Angel fished again May 28, chumming with anchovy to draw the schools to the surface and then switching to nehu. Medium and large (over 15 pounds) skipjack tuna were fished for a catch of 5, 500 pounds."
        },
        {
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            ],
            "content": "Further fishing with the Anela's remaining 14 buckets of anchovy will be monitored through shoreside interviews."
        },
        {
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            ],
            "content": "The Buccaneer took 18 \"very heavy\" buckets of anchovy on May 26; again Mr. Kazama went along as observer. The boat began fishing at 0845 May 28 off Barbers Point, Oahu, fishing five schools of skipjack tuna and taking 3,640 pounds of fish, mostly 8-15 pounds. During that day, the Buccaneer expended 15 buckets of nehu and three of anchovy. Her practice was similar to that of the Angel, chumming with anchovy until a school of fish responded and chumming with nehu during fishing. Results of this procedure were pronounced excellent."
        },
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            ],
            "content": "It was noted that many anchovy were picked up by birds as they were chummed. Obviously the larger fish are more visible to birds and to tuna."
        },
        {
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                {
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            ],
            "content": "Review is continuing at the Honolulu Laboratory on the manuscript, \"The American Samoa longline fishery, 1966-71\" by Fishery Biologist Howard O. Yoshida. This month Mr. Yoshida completed his third con- tribution to the baitfish workshop, a working paper entitled \"The production of tuna in the eastern Pacific, Hawaiian, and Japanese pole-and-line fisheries.\""
        },
        {
            "spans": [
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            "content": "Hawaiian Skipjack Tuna Catch Slightly Below May Averages"
        },
        {
            "spans": [
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            ],
            "content": "Skipjack tuna catch in the Hawaiian fishery for May 1974 was an esti- mated 412 metric tons, falling below the catch of May 1973 by 36 metric"
        },
        {
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            ],
            "content": "24"
        },
        {
            "spans": [
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            ],
            "content": "tons and below the May average for the years 1948-73 by 92 metric tons. The catch from January through May was estimated at 1, 062 metric tons. This is 134 metric tons above last year's catch for the first 5 months of the year, but 13 metric tons below the long-term average for that period."
        },
        {
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            ],
            "content": "During the period April 29 to May 24, Pulou Niuatoa, of the Government of American Samoa, recorded the lengths of 1,564 albacore from 43 vessels and collected 38 sets of catch and effort data. Using the data from 10 vessels, an average size of 90.4 cm was determined, and an albacore catch per 100 hooks of 2.80."
        },
        {
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            ],
            "content": "Fishery Analysis Program Emphasis in May is on Data Organization and Manuscript Preparation"
        },
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            ],
            "content": "The Fishery Analysis Program under Dr. Robert A. Skillman at the Honolulu Laboratory, carries out the objectives of the task Tuna Monitoring and Assessment, Pacific and Indian Oceans, with major emphasis on stock assessment, fishery monitoring, and fishery liaison aspects of the SWFC's skipjack tuna development plan. The status of exploited stocks of other tuna and tunalike resources of U.S. concern are also monitored through the systematic collection and analysis of fisheries data. The three sub- groups of the program are fishery liaison and monitoring, assessment of skipjack tuna resources, and assessment of other tuna and tunalike resources ."
        },
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                }
            ],
            "content": "Richard N. Uchida, Fishery Biologist in the Honolulu Laboratory's Fishery Analysis Program, has resumed his literature search for data and informa- tion on the development or potential development of skipjack tuna fisheries, particularly in the southwest Pacific and around the islands of the Indian Ocean which are contiguous to the southwest Pacific. Mr. Uchida is also involved in preparing a report for the IOFC/IPFC working party meeting. He has completed two papers for the Tuna Baitfish Workshop, June 4-6 in Honolulu. The first, entitled \"The fishery for nehu, Stolephorus purpureus, a live bait used for skipjack tuna fishing in Hawaii,\" discusses the baiting localities in the Hawaiian Islands, the methods used in capturing bait during the day and at night, and the production of nehu from the major baiting sites."
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            "content": "In 1960-72, statewide bait production varied between 22,849 buckets and 42,098 buckets, and averaged 33,658 buckets. (A bucket of bait equals 3.5 kg.) In general, day baiting effort showed a downward trend from 1960 to 1967, trending upward from 1968 to 1972. Night baiting effort, on the"
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            "content": "25"
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            "content": "other hand, rose sharply from 1960 to a peak in 1965, then declined steadily and dipped below the 1960 level in 1969-72. The second paper, entitled \"A review of catch and effort statistics in fisheries for live bait in the Pacific Ocean,\" reviews the available published information on catch and effort expended by bait boats in capturing bait- fishes in the eastern Pacific, Hawaiian, and Japanese pole-and-line fisheries ."
        },
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            "content": "The manuscript \"Von Bertalanffy growth curves for striped marlin, Tetrapturus audax, and blue marlin, Makaira nigricans, in the central North Pacific\" by Robert A. Skillman and Marin Y. Y. Yong, has been reviewed internally and is now being reorganized following comments of the reviewers. Tests of homogeneity of length-frequency distributions of the cohorts are being made to verify the validity of using a dynamic pool steady state."
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            "content": "Marian Y. Y. Yong, Mathematician in the Fishery Analysis Program, has edited and placed on computer tape length-frequency data of Hawaiian skipjack tuna. These data will be used to obtain estimates of mortality rates and von Bertalanffy growth parameters following the separation of age groups on a cohort basis."
        },
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            "content": "EXECUTIVE OFFICER NAMED FOR SOUTHWEST FISHERIES CENTER"
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            "content": "On March 31, Mr. Benjamin F. Remington was named Executive Officer for the Southwest Fisheries Center where he will be responsible for financial management and administration of the Center's three laboratories located in Honolulu, Hawaii; La Jolla, California; and Tiburon, California. These laboratories carry out fisheries research programs on the tunas of the Atlantic and Pacific Oceans, fisheries of the California Current and the Pacific coastal zone, and porpoises of the eastern tropical Pacific."
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            "content": "Mr. Remington, 41, is a native of Alexandria, Virginia. He graduated from the University of Colorado in Boulder, Colorado, with a degree in Business Administration. He comes to the Center with 22 years of ex- perience in government service. Four of these years were spent in the Air Force in meteorology and 18 years in the Civil Service, including 4 years with the Antarctic research project of the Weather Bureau, wintering over at Little America IV and the South Pole. Mt. Remington, in Queen Victorialand, is named for him. Most recently, Mr. Remington held the position of Financial Analyst with the NMFS Plans and Policy Development staff in Washington, D.C."
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            ],
            "content": "Mr. Remington and his wife, the former Nancy Byrne, have five children."
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            "content": "26"
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            "content": "PUBLIC AFFAIRS"
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            ],
            "content": "May 13 - Honolulu Laboratory Director Shomura attended a pre-public showing of the week-long Sea Grant-sponsored Makahiki Kai (Festival of the Sea) , held at the Honolulu International Center May 14-17. Sea Grant personnel were generous in their praise of the popular NMFS contribution, one of many exhibitions offered by federal, state, and city and county organizations, marine-related departments of the University of Hawaii, and business firms. Makahiki Kai was conceived in recognition of the need for more readily accessible infor- mation about the ocean, its resources, and its relation to the people of Hawaii, and attracted over 13,000 viewers, many of whom were school children in the lower grades ."
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            "content": "21"
        },
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            ],
            "content": "- Dr. Nathan Clark, Meteorologist, lectured to 40 students from San Dieguito High School and their instructor, Mr. Robert Zakowski, on research conducted at the Southwest Fisheries Center."
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        {
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            ],
            "content": "Press Releases from SWFC"
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            "content": "May 3"
        },
        {
            "spans": [
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                    "length": 94
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            ],
            "content": "- Issued for release to West Coast newspapers, \"Executive Officer Named for Fisheries Center.\""
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            ],
            "content": "20 - Issued by Honolulu Laboratory, \"Baitfish Workshop to be Held in Honolulu.\""
        },
        {
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            ],
            "content": "SEMINARS AND LECTURES"
        },
        {
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            ],
            "content": "May 1 Mr. Ralph Bates, Systems Analyst at the La Jolla Laboratory, - presented an informal lecture on data base structure, elements and banks."
        },
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            ],
            "content": "15 Mr. John E. Tyler of the Scripps Institution of Oceanography, - spoke on \"Some thoughts on light measurement in biological oceanography.\""
        },
        {
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            "content": "27"
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            "content": "MEETINGS AND TRAVEL"
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            "content": "May 3"
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            ],
            "content": "- A second baitfish committee meeting was called at the Honolulu Laboratory by Mr. Shomura to discuss recent progress in the bait transport project, and to obtain views of the committee as to future plans and a course of action. Committee members in attendance were Dr. John Craven, Dean, Marine Programs, University of Hawaii; Dr. Jack Davidson, Director, Sea Grant Program, U.H .; Frank Goto, Manager, United Fishing Agency; Ms. Margaret Markham, Tunaboat Owners' Association; Jay Puffinburger, General Manager, Bumble Bee Seafoods, Inc .; Michio Takata, Director, State Fish and Game Division; Dr. Albert Tester, representing PIDC; and laboratory personnel Roger Green, Robert Iversen, and Tamio Otsu."
        },
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            ],
            "content": "6 Mr. I. Barrett, Deputy Director, attended the monthly - meeting of the San Diego/La Jolla Underwater Park Advisory Committee, of which he is a member."
        },
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            ],
            "content": "6-7 - Dr. Brian Rothschild, Center Director, traveled to Monterey, California for discussion with the staff of the Pacific Environmental Group."
        },
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            "content": "8 Drs. R. Lasker and P. Smith attended a CalCOFI meeting - held at the La Jolla Laboratory."
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            "content": "- Mr. Roger Green and Don Aasted of the Honolulu Laboratory travelled to San Francisco to scout for a surplus trailer- tank for conversion to a second transport unit."
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            "content": "9 Dr. Barham attended a public hearing on the NMFS Draft - Environmental Impact Statement, at the Customs Building, Terminal Island."
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            "content": "9-10 - Dr. Rothschild visited the Tiburon Laboratory, Tiburon, California for consultations with the Acting Director and staff of the laboratory."
        },
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            "content": "17 Mr. Shomura accompanied Honolulu Laboratory nominees Ms. Sally Kuba and James Uchiyama to the Federal Execu- tive Board's Employee of the Year luncheon, held in the Coral Ballroom of the Hilton Hawaiian Village."
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            "content": "28"
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            "content": "May 17 - A Marine Research Committee meeting was held at the Southwest Fisheries Center. It was attended by Drs. Rothschild, Lasker, Smith, and Lt. R. Hewitt of the NOAA Corps."
        },
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            "content": "21"
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            "content": "- Mr. Shomura travelled to Los Angeles to meet with Cali- fornia Fish and Game personnel to review the baitfish transport project, and to visit the Regional Office where he discussed the assistance of Regional Sea Food Consumer Specialist Ms. Doris Robinson to the University of Hawaii's Sea Grant Program. Mr. Shomura proceeded to La Jolla to attend the Townsend Cromwell refurbishing meeting."
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            ],
            "content": "23 Mr. Howard W. Pollock, Deputy Administrator of NOAA, Washington, D.C., spoke briefly at a general staff meet- ing held in the Honolulu Laboratory's seminar room."
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            "content": "23-24 - Dr. Rothschild attended his first meeting as a member of the Ocean Policy Committee of the Ocean Affairs Board (National Academy of Science-National Research Council Commission on Natural Resources) , in Washington, D.C."
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            "content": "May 26- - June 1"
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            ],
            "content": "Dr. William Fox attended the Inter-American Tropical Tuna Commission meeting in Washington, D.C. on enforcement of regulations and alternative tuna regulatory systems as a Technical Advisor to the U. S. Commissioners."
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            "content": "VISITORS"
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            "content": "Honolulu Laboratory"
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            "content": "May 13"
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            "content": "- Mr. Howard W. Pollock, NOAA, Washington, D.C."
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            "content": "17-19"
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            "content": "- Dr. Keiji Nasu, Oceanographer, Far Seas Fisheries Research Laboratory, Shimizu, Japan."
        },
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            "content": "20 Mr. Keiichiro Mori, visiting scientist, Far Seas - Fisheries Research Laboratory, Shimizu. Mr. Mori will spend 1 month working on larval fishes with Mr. Walter Matsumoto."
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            "content": "22 - Ms. Sophia Fei Hu, Taiwan, ROC."
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            "content": "29"
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            "content": "La Jolla Laboratory"
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            "content": "May 1 Mr. G.V. Howard, Regional Director, NMFS Southwest - Region, Terminal Island, California."
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            "content": "- Messrs. G. Irving and R.H. Schneider, Integrated Sciences Corp. , Santa Monica, California."
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            "content": "1-2"
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            "content": "- Messrs. Jack Wise and Ken Sherman, NMFS, Washington, D.C."
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            "content": ":3"
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            ],
            "content": "- Mr. Paul E. LaViolette, U.S. Naval Oceanographic Office, Washington, D.C."
        },
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            "spans": [
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            "content": "6"
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            ],
            "content": "- Mr. William Clark, University of Washington, rep- resenting the U. S. Marine Mammal Commission, to discuss data and statistical problems related to estimates of porpoise mortality, distribution and density."
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            "content": "10"
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            ],
            "content": "Ms. Jean Federowski, University of Arizona."
        },
        {
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            ],
            "content": "- Dr. Chris Matthews, School of Marine Sciences, Ensenada, Baja California."
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            "spans": [
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            "content": "13-14 Mr. Evan Stoll, General Accounting Office, to consult with staff on underutilized fish species of the California Current."
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            "content": "15-17"
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            "content": "- Dr. S. Jukic, Institute of Oceanography and Fisheries, Split, Yugoslavia."
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            "content": "16-17"
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            "content": "- Mr. Keiji Nasu, Far Seas Fisheries Research Laboratory, Japan."
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            "content": "- Mr. Mike Reeve, University of Miami."
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            "content": "20 Dr. Douglas R. McLain, NMFS Pacific Environmental Group, Monterey, California."
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            "content": "23"
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            "content": "Dr. V. McClure, Tiburon Laboratory ."
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            "content": "30"
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            "content": "May 23-24 - Admiral Lippold and Messrs. Shek, Hitz, Pacific Marine Center, Seattle, Washington; R. Wolf, National Ocean Survey, Washington, D.C .; and Messrs. E. Lee and R. Shomura, Honolulu Laboratory , to review ship use and scheduling."
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            "content": "- Dr. R. W. Kinney, National Academy of Sciences, Washington, D.C."
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            "content": "- Mr. M.E. Gurtz, U. S. Army Environmental Hygiene Agency, Aberdeen Proving Grounds, Maryland."
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            ],
            "content": "- Dr. Douglas Chapman, University of Washington; Dr. Ken Norris, UC, Santa Cruz; Dr. G. Bartholomew, UCLA; members of group of Scientific Advisors to the U.S. Marine Mammal Commission, to attend a technical meeting on a program for analysis of population dynamics of porpoises."
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            "content": "Tiburon Laboratory"
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            "content": "May 1"
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            ],
            "content": "- Howard Smalhersen, College of Marin."
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            ],
            "content": "2 Dr. Bizo Maeda, Nagoya University of Mexico City."
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            "content": "Dr. Guillermo Carrillo, National Agriculture University, Mexico City."
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            "content": "7"
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            "content": "- F. McDermott, L. Dillon, State Water Quality Control Board."
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            "content": "9"
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            "content": "- Dr. Brian Rothschild, Director, Southwest Fisheries Center."
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            ],
            "content": "- Dr. Lee Alverson, NMFS, Seattle."
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            "content": "Mr. Gerry Howard, NMFS, Terminal Island."
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            "content": "- Mr. Harry Rietze, NMFS, Juneau, Alaska."
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            "content": "22"
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            ],
            "content": "- R. Brown, San Francisco Tyee Club."
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            "content": "30"
        },
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            ],
            "content": "C. Dewees, U.C. Davis, Sea Grant."
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            "content": "- John Spinelli, NMFS, Seattle."
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            "content": "31"
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            "content": "PERSONNEL ACTIONS"
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            "content": "May 5 Lt. Bruce Crumley, NOAA Corps Officer, - Promotion"
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            "content": "Honolulu"
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            "content": "7"
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            "content": "- Mary Ann Clark, Clerk-Steno, Reduction in Force La Jolla"
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            "content": "9"
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            ],
            "content": "- Robert Butler, Biological Technician, Temporary Appointment - La Jolla"
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                    "length": 62
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            ],
            "content": "- Dana Seagars, Biological Aid, Temporary Appointment La Jolla"
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            "content": "10 Nina D. Hirsch, Biological Laboratory - Technician, Temporary Appointment - Tiburon"
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            "content": "13 Iris E. Ebisuzaki, Clerk Typist, - Temporary Appointment, NTE 30 days - Honolulu"
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            "content": "14 Robert Bourke, Biological Aid, Termination, - Lack of Work - La Jolla"
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            "content": "31"
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            "content": "- Manuel Lozano, Laborer, Resignation - La Jolla"
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            "content": "Training"
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            ],
            "content": "Ms. Lorraine Downing, Editorial Assistant at the La Jolla Laboratory, attended a \"Better English Workshop\" May 7-10 at the Charter Oil Building, San Diego, California, sponsored by the Civil Service Commission."
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            "content": "Ms. Joanne Webber, Editorial Clerk, La Jolla Laboratory, attended a clerical supervision course entitled \"Creating a Winning Environment\" in San Francisco, California May 20-22, sponsored by the Civil Service Commission."
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            "content": "5"
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            "content": "32"
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            "content": "HONORS AND AWARDS"
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            "content": "Honolulu Laboratory"
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            "content": "May 31"
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            "content": "- Ms. Sally Kuba, laboratory nominee for Federal Woman Employee of the Year, was chosen by Honolulu radio station KGU as their \"Ms. in Biz\" for May 31."
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            "content": "- Donald C. Aasted, 15-year Length-of-Service award (effective June 16, 1974) ."
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            "content": "- Melvin J. Dutro, Special Achievement Award."
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            "content": "Irene H. Toyomura, Outstanding Performance Rating."
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            "content": "Lucille T. Tsukano, Special Achievement Award."
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            "content": "- Carole A. Yukihiro, Special Achievement Award."
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            "content": "EV"
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            "content": "N B"
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            "content": "IC"
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            "content": "1776-19"
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            "content": "33"
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            "content": "OTMENT"
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            "content": "ART"
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            "content": "MERCE"
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            "content": "UNITED"
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            "content": "ED STATE"
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            "content": "SOF AMAL"
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            "content": "U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration NATIONAL MARINE FISHERIES SERVICE"
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            "content": "Page 1 of 2 June 4, 1974 Ralph B. Bates"
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