{"Bibliographic":{"Title":"Juvenile lingcod outer harbor field survey, Grays Harbor navigation improvement project","Authors":"","Publication date":"1986","Publisher":""},"Administrative":{"Date created":"08-16-2023","Language":"English","Rights":"CC 0","Size":"0000030726"},"Pages":["SH\n153\n.C67\n1986\nJuvenile Lingcod\nOuter Harbor Field Survey,\nGrays Harbor Navigation\nImprovement Project\nby\nTravis C. Coley\nGeorge T. McCabe, Jr.\nRobert L. Emmett\nand\nRobert J. McConnell\nJune 1986\nZONE\nCOASTA\nAND\nTUARINE\nSTUDIES","NWFSC062\nJUVENILE LINGCOD OUTER HARBOR FIELD SURVEY,\nSH\nGRAYS HARBOR NAVIGATION IMPROVEMENT PROJECT\n153\nC67\n986\nby\nTravis C. Coley,\nGeorge T. McCabe, Jr.\nRobert L. Emmett,\nand\nRobert J. McConnell\nFinal Report of Research\nfor\nU.S. Army Corps of Engineers\n(Contract E86-85-3308)\nCoastal Zone and Estuarine Studies Division\nNorthwest and Alaska Fisheries Center\nNational Marine Fisheries Service\nNational Oceanic and Atmospheric Administration\n2725 Montlake Boulevard East\nSeattle, Washington 98112\nJune 1986","CONTENTS\nPage\nINTRODUCTION\n1\nMETHODS\n1\nRESULTS AND DISCUSSION\n5\nLITERATURE CITED\n10\nAPPENDIX A: Loran-C Navigational Values\n11\nAPPENDIX B: Physical and Biological Data\n13","INTRODUCTION\nThe Seattle District of the U.S. Army Corps of Engineers (COE) is\ninvestigating the effects of The Grays Harbor Navigation Improvement Project\non fishes in Grays Harbor, Washington. The two primary areas addressed by\nthis study are the effects of habitat alteration and the potential for dredge\nentrainment of juvenile lingcod, Ophiodon elongatus, and other fishes.\nIn September 1985, the National Marine Fisheries Service (NMFS) entered\ninto a cooperative agreement with the COE to conduct a bottom-trawl survey for\njuvenile lingcod and other demersal fishes in Grays Harbor and the offshore\nzone within a 2-mile radius of the entrance. The 7-day study had\nthe\nfollowing primary objectives: (1) determine the distribution and relative\ndensity of juvenile lingcod in outer Grays Harbor and adjacent coastal areas\nduring October 1985, (2) determine if young-of-the-year (0+ age) lingcod were\nemigrating from the estuary, and (3) determine the distributions and relative\ndensities of other demersal fishes in outer Grays Harbor and adjacent ocean\nareas.\nMETHODS\nTrawl samples were collected from 1 through 9 October 1985 at 30 stations\nin Grays Harbor and adjacent coastal areas (Fig. 1) using an 8-m semiballoon\nshrimp trawl. Overall mesh size (stretched) in the trawl was 38.1 mm; a\n12.7-mm liner was inserted in the cod end to prevent escape of small fishes\nand crabs. The fishing width of the trawl was estimated to be 5 m\n(manufacturer's estimate). In the estuary, trawl efforts were generally 5 min\nin duration; in the ocean, they were generally 10 min in duration. Sampling\nwas done during daylight at various stages of flood and ebb tides, including\nlow slack; average trawling speed (ground speed) was about 4-5 km/h. The\n1","Figure 1.--Map of Grays Harbor, Washington, and adjacent coastal areas showing the areas sampled with an 8-m\nN\nNAUTICAL MILES\no\n26\nHARBOR\nSouth\nBay\n10\nNorth Bay\n18\nGRAYS\nbottom trawl in October 1985.\n11.\nPt Brown\n19\nPACIFIC\nOCEAN\n5","distance traveled during each sampling effort was estimated using Loran-C\nnavigational equipment. Beginning and ending Loran readings for each station\nare presented in Appendix A. Our greatest effort was concentrated in sandy\nchannel areas near tidal flats where juvenile lingcod had previously been\ncollected by the Washington Department of Fisheries.\nBottom salinities and temperatures were measured at each station using a\nBeckman RS5-3 salinometer and probe.1/ An Impulse-600 electronic depth finder\nwas used to measure depths.\nRelative densities (expressed as number/hectare) of juvenile lingcod,\nother demersal fishes, and crabs were calculated for each trawling effort\nusing catch data, the fishing width of the trawl, and the distance traveled.\nAlso, various community structure indices were calculated for each effort.\nDiversity was calculated for each trawl effort using the Shannon-Weaver\nDiversity Index (Shannon and Weaver 1963):\nS\nH==\nPilog2Pi\ni=1\nwhere H = Shannon-Weaver Diversity Index\n(X is the number of individuals of a particular\nPi = Xa/n\nspecies in a sample, and n is the total number of\nall individuals in the sample.\nS = number of species.\nA second diversity index, the Simpson Diversity Value (Simpson 1949), , was also\ncalculated for each trawl:\nS\nP12\nSD=1\n= 1\n1/ Reference to trade names does not imply endorsement by the National Marine\nFisheries Service, NOAA.\n3","Diversity values are sensitive to two components: the number of species\nin a sample (species richness) and the distribution of individuals among\nspecies (evenness) (Lloyd and Ghelardi 1964). Species richness (SR) was\nestimated using Margalef's formula (Margalef 1958):\n(S-1)\nSR\n=\nwhere S = number of species\nN = total number of individuals at the station.\nSpecies evenness was described using the Evenness Index (Pielou 1966):\n10825\nwhere J = Evenness Index\nH = Shannon-Weaver Diversity Index\nS = number of species.\nAt the beginning of the study, generally a subsample of at least 50\nindividuals of each species for each sampling effort was measured and\nweighed. The remainder was counted and weighed as a group. As the study\nprogressed, it became apparent we would be unable to sample an adequate number\nof areas because of the large catches of fishes and Dungeness crabs, Cancer\nmagister. This matter was discussed with the COE, and it was agreed that NMFS\ncould simply identify and enumerate demersal fish species (except lingcod)\nwhen large catches were made; this compromise allowed NMFS to sample more\nareas. Individual lengths and weights that were taken are not included in\nthis report, but a computer print-out is available upon request.\nAt the end of the survey, we attempted to collect lingcod using two set\nlines rigged with unbaited colored jigs. The set lines were fished for about\n4","1 h in the vicinity of Stations 11 and 17 (an area where lingcod had been\ncaptured by trawling).\nRESULTS AND DISCUSSION\nFifteen juvenile lingcod were captured by trawling (Appendix B); all the\njuveniles, which were young-of-the-year, were captured in Grays Harbor (Fig.\n2). No lingcod were captured in the ocean, nor were any captured with set\nlines. Bottom salinities and water temperatures in the ocean and Grays Harbor\nwere similar; mean bottom salinity and temperature in the ocean were 32.8 ppt\nand 11.5°C, and in Grays Harbor, 32.4 ppt and 10.2°C.\nAll the lingcod were collected in areas with a hard bottom, i.e.,\nshell-cobble habitat near rocks in 9-15 m of water (Stations 11, 17, 23, 25,\n30); none were captured in sandy channel areas near tidal flats. Lingcod\ndensities at the five stations ranged from 3/ha at Station 23 to 18/ha at\nStation 30 (Appendix B), with a mean density (five stations) of 11.4/ha. At\neach of the five stations, the lingcod density represented less than 0.3% of\nthe station's total density (fishes and crabs). Dungeness crab was the\ndominant species at all five stations; other numerically important species\nassociated with lingcod included shiner perch, Cymatogaster aggregata; kelp\ngreenling, Hexagrammos decagrammus; and English sole, Parophrys vetulus,\n(Appendix B). Lingcod were captured during ebb tide at Stations 23 and 30 and\nduring flood tide at Stations 11, 17, and 25. Bottom salinities and water\ntemperatures in the areas where lingcod were captured ranged from 31 to 33 ppt\nand 10° to 13°C.\nIn Puget Sound, it was observed that 0+ age lingcod used open\nsandy-bottom habitat until October, moved offshore during October, and\n5","5\nN= 15\n4\n3\n2\n1\n0 50 100 150 200\n0\n250\n300\nTOTAL LENGTH (MM)\nFigure 2. -- Length frequency distribution of juvenile lingcod\ncaptured in Grays Harbor during October 1985.\n6","returned the following spring to occupy nearshore rocky habitats (Buckley et\nal. 1984). More research would be required to determine the timing of a\nhabitat shift for juvenile lingcod in Grays Harbor.\nTwenty-eight other species of fishes and six species of crabs were\ncaptured (Table 1). Dungeness crab was the most abundant species, with\nestimated densities greater than 1000/ha at 14 of the 30 sampling sites. At\nmost stations, crabs 50-115 mm (carapace width) were the most abundant size\nclass, although crabs less than 50 mm were important at Stations 23, 24, 25,\nand 30. English sole were captured at 27 stations in 4-21 m of water;\ndensities ranged from 3 to 3,478/ha. Densities of English sole were low\nwithin the entrance reach and in offshore areas north and south of the\njetties. Sand sole were collected at 18 stations in water depths of 4-21 m;\ndensities in both the ocean and Grays Harbor were relatively low and ranged\nfrom 4 to 160/ha. Shiner perch were captured at 18 stations in 4-21 m of\nwater; densities ranged from 3 to 6,811/ha. Shiner perch were virtually\nabsent in the ocean catches, and highest densities occurred upstream from the\nentrance reach.\nThere was variation among diversity values for the 30 trawling efforts\n(Table 2). Diversity tended to be lower at the mouth (entrance reach) of the\nestuary than in the area upstream from the mouth. The mean Shannon-Weaver\nDiversity Index (H) and Simpson Diversity Value (SD) for the stations at the\nmouth were 1.21 and 0.38, respectively; in the area upstream from the mouth, H\nand SD averaged 1.89 and 0.60, respectively.\nMuch more research is needed before the lingcod community in Grays Harbor\ncan be adequately described. Intensive sampling throughout the year is needed\nto define the distribution, abundance, age-class structure, and movements of\nlingcod in the estuary and adjacent ocean areas.\n7","Table 1.--Species composition of fishes and crabs captured in\nGrays Harbor and near offshore areas in October 1985.\nCommon name\nScientific name\nTotal number\n439\nSpiny dogfish\nSqualus acanthias\n4\nBig skate\nRaja binoculata\nPacific herring\nClupea harengus pallasi\n107\n699\nNorthern anchovy\nEngraulis mordax\n87\nWhitebait smelt\nAllosmerus elongatus\nNight smelt\nSpirinchus starski\n339\nSpirinchus thaleichthys\n14\nLongfin smelt\n606\nLarval smelt\nOsmeridae\nPacific tomcod\nMicrogadus proximus\n2272\n128\nBay pipefish\nSyngnathus leptorhynchus\n2857\nShiner perch\nCymatogaster aggregata\n67\nSpotfin surfperch\nHyperprosopon anale\n55\nWalleye surfperch\nHyperprosopon argenteum\n43\nSnake prickleback\nLumpenus sagitta\n54\nSaddleback gunnel\nPholis ornata\nPacific sand lance\nAmmodytes hexapterus\n1286\nBlack rockfish\nSebastes melanops\n1\nKelp greenling\nHexagrammos decagrammus\n810\nLingcod\nOphiodon elongatus\n15\n295\nBuffalo sculpin\nEnophrys bison\nRed Irish lord\nHemilepidotus hemilepidotus\n57\nPacific staghorn sculpin\n325\nLeptocottus armatus\nCabezon\nScorpaenichthys marmoratus\n2\n68\nUnidentified sculpin\nCottidae\n5\nPricklebreast poacher\nStellerina xyosterna\nSpeckled sanddab\nCitharichthys stigmaeus\n469\n129\nButter sole\nIsopsetta isolepis\nEnglish sole\nParophrys vetulus\n2930\nStarry flounder\nPlatichthys stellatus\n2\n2\nC-0 sole\nPleuronichthys coenosus\nSand sole\nPsettichthys melanostictus\n105\n9948\nDungeness crab\nCancer magister\n1\nCancer oregonensis\nCancer oregonensis\nRed rock crab\nCancer productus\n52\n1\nCancer gracilis\nCancer gracilis\nPurple shore crab\nHemigrapsus nudus\n1\n1\nKelp crab\nPugettia producta\nTOTAL\n24276\n8","Table 2.--Diversity indices for 30 trawling efforts done in\nGrays Harbor and near offshore areas in October 1985;\nthe Shannon-Weaver Diversity Index (H) and the Simpson\nDiversity Value (SD) are shown for each effort.\nStation\nLocation\nH\nSD\n1\nMouth of estuary\n0.10\n0.02\n2\nMouth of estuary\n1.82\n0.61\n19\nMouth of estuary\n1.27\n0.41\n20\nMouth of estuary\n1.40\n0.42\n21\nMouth of estuary\n1.59\n0.50\n24\nMouth of estuary\n1.08\n0.32\n3\n2.37\n0.68\nOcean\n4\n3.23\n0.86\nOcean\n1.16\n0.36\n5\nOcean\n6\n1.96\n0.65\nOcean\n2.46\n0.70\n7\nOcean\n8\n0.00\n0.00\nOcean\n9\nUpstream from mouth\n2.14\n0.70\n10\nUpstream from mouth\n2.28\n0.72\n11\nUpstream from mouth\n2.63\n0.75\n12\nUpstream from mouth\n2.05\n0.69\n13\nUpstream from mouth\n2.05\n0.64\n14\nUpstream from mouth\n2.17\n0.71\n15\nUpstream from mouth\n2.01\n0.67\n16\nUpstream from mouth\n1.16\n0.35\n1.99\n0.57\n17\nUpstream from mouth\n18\nUpstream from mouth\n1.49\n0.54\n2.27\n0.72\n22\nUpstream from mouth\n23\nUpstream from mouth\n1.72\n0.57\n1.85\n0.63\n25\nUpstream from mouth\n26\nUpstream from mouth\n0.88\n0.27\nUpstream from mouth\n1.74\n0.53\n27\n2.49\n0.80\n28\nUpstream from mouth\n1.30\n0.43\n29\nUpstream from mouth\n1.80\n0.55\n30\nUpstream from mouth\n9","LITERATURE CITED\nBuckley, R., G. Hueckel, B. Benson, S. Quinnell, and M. Canfield.\n1984. Enhancement research on lingcod (Ophiodon elongatus) in Puget\nSound. Wash. Dep. Fish., Prog. Rept. 216:1-93.\nLloyd, M., and R. J. Ghelardi.\n1964. A table for calculating the \"equitability\" component of species\ndiversity. J. Anim. Ecol. 33: 217-225.\nMargalef, R.\n1958. Information theory in ecology. Gen. Syst. 3: 36-71.\nPielou, E. C.\n1966. The measurement of diversity in different types of biological\ncollections. J. Theor. Biol. 13: 131-144.\nShannon, C. E., and W. Weaver.\n1963. The mathematical theory of communication. Univ. of Illinois\nPress, Urbana, Ill. 117 P.\nSimpson, E. H.\n1949. Measurement of diversity. Nature 163: 688.\n10","APPENDIX A\nLoran-C Navigational Values\n11","Appendix A.--Loran C navigational values for the 30 sampling\nstations (October 1985) in Grays Harbor and adjacent\nocean waters.\nStation\nBeginning of trawl\nEnd of trawl\n1\n11834.3\n28055.6\n11833.6\n28056.2\n2\n11833.9\n28054.9\n11833.5\n28053.3*\n3\n11840.8\n28057.9\n11839.3\n28057.7\n4\n11842.8\n28057.2\n11840.9\n28057.3\n5\n11840.4\n28050.7\n11838.9\n28050.7\n6\n11841.5\n28049.9\n11839.5\n28050.4\n7\n11820.6\n28056.4\n11822.3\n28056.1\n8\n11823.9\n28054.9\n11821.8\n28055.3\n9\n11824.3\n28063.0\n11824.7\n28063.1\n10\n11817.8\n28064.1\n11817.4\n28064.5\n11\n11811.8\n28063.8\n11810.8\n28063.9\n12\n11822.0\n28062.8\n11821.7\n28062.5\n13\n11813.8\n28064.6\n11813.8\n28064.5*\n14\n11810.0\n28066.7\n11810.1\n28066.7*\n15\n11813.2\n28067.3\n11812.4\n28067.5\n16\n11814.0\n28067.1\n11813.1\n28067.5\n17\n11811.6\n28063.9\n11810.5\n28064.0\n18\n11807.7\n28064.5\n11808.9\n28064.3\n19\n11830.7\n28057.8\n11830.5\n28058.0\n20\n11823.9\n28059.9\n11823.2\n28060.0\n21\n11817.5\n28062.4\n11817.2\n28062.6\n22\n11807.4\n28069.5\n11808.6\n28069.0\n23\n11824.3\n28062.1\n11824.9\n28062.4\n24\n11822.3\n28060.9\n11821.0\n28061.8*\n25\n11824.4\n28062.0\n11825.0\n28062.3\n26\n11815.8\n28065.7\n11815.2\n28066.1\n27\n11799.1\n28072.4\n11797.9\n28072.7\n28\n11812.8\n28064.0\n11811.9\n28063.8\n29\n11827.4\n28063.8\n11828.5\n28063.5\n30\n11824.2\n28062.9\n11824.9\n28062.2\n* - questionable Loran readings for this station\n12","APPENDIX B\nPhysical and Biological Data\nPhysical and biological data for 30 stations\nsampled in Grays Harbor and near offshore areas in\nOctober 1985. Four community structure indices are\nalso included for each station; see Methods for a\nbrief description of the indices.\n13","STATION: 1\nGear: 8-m trawl\nDate: 1 Oct 1985\nDepth: 13.7 E\nBottom salinity: 33.4 ppt\nBottom temperature: 8.9 C\nDistance traveled: 556 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nPacific sand lance\n1183\n4255\nKelp greenling\n1\n4\nSpeckled sanddab\n1\n4\nDunseness crab\n12\n43\nTOTALS\n1197\n4306\nH=0.10 J=0.05 SD=0.02 SR=0.42\n14","STATION: 2\nGear: 8-m trawl\nDate: 1 Oct 1985\nDepth: 15.8 m\nBottom salinity: 33.4 ppt\nBottom temperature: 8.5 C\nDistance traveled: 648 m\nNumber\nNo. Per\nCaptured\nSpecies\nHectare\nPacific herring\n1\n3\nBay pipefish\n1\n3\nPacific sand lance\n46\n142\nPacific stashorn sculpin\n3\n9\nUnidentified sculpin\n2\n6\nSpeckled sanddab\n16\n49\nEnglish sole\n3\n9\nC-O sole\n1\n3\nSand sole\n3\n9\nDunseness crab\n93\n287\nTOTALS\n169\n520\nH=1.82\nJ=0.55\nSD=0.61\nSR=1.75\n15","STATION: 3\nGear: 8-m trawl\nDate: 2 Oct 1985\nDepth: 8.2 E\nBottom salinity: 32.5 ppt\nBottom temperature: 12.6 C\nDistance traveled: 796 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dosfish\n2\n5\nPacific herring\n1\n3\nNorthern anchovy\n1\n3\nWhitebait smelt\n2\n5\nSpotfin surfperch\n4\n10\nPacific sand lance\n1\n3\nPacific stashorn sculpin\n2\n5\nSpeckled sanddab\n20\n50\nSand sole\n3\n8\nDunseness crab\n1\n3\n37\n95\nTOTALS\nH=2.37 J=0.71 SD=0.68 SR=2.49\n16","STATION: 4\nGear: 8-m trawl\nDate: 2 Oct 1985\nDepth: 11.0 E\nBottom salinity: 32.9 ppt\nBottom temperature: 12.3 C\nDistance traveled: 685 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n1\n3\nPacific herring\n6\n18\nNorthern anchovy\n6\n18\nNight smelt\n10\n29\nWhitebait smelt\n1\n3\nPacific tomcod\n1\n3\nBay pipefish\n1\n3\nSpotfin surfperch\n11\n32\nPacific stashorn sculpin\n2\nto\nUnidentified sculpin\n3\n9\n25\n73\nSpeckled sanddab\nEnglish sole\n2\n6\nStarry flounder\n1\n3\nSand sole\n8\n23\nDunseness crab\n9\n26\n87\n255\nTOTALS\nH=3.23\nJ=0.83\nSD=0.86\nSR=3.13\n17","STATION: 5\nGear: 3-m trawl\nDate: 4 Oct 1985\nDepth: 14.3 m\nBottom salinity: 32.8 ppt\nBottom temperature: 11.2 C\nDistance traveled: 630 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n1\n3\nNight smelt\n5\n16\nPacific tomcod\n36\n114\nSpotfin surfperch\n7\n22\nPacific stashorn sculpin\n3\n10\nUnidentified sculpin\n1\n3\nSpeckled sanddab\n47\n149\nButter sole\n2\n6\nEnglish sole\n137\n435\nStarry flounder\n1\n3\nSand sole\n19\n60\nDunseness crab\n999\n3171\nTOTALS\n1258\n3992\nH=1.16 J=0.32 SD=0.36 SR=1.54\n18","STATION: 6\nGear: 8-m trawl\nDate: 2 Oct 1985\nDepth: 21.3 m\nBottom salinity: **** ppt\nBottom temperature: **** C\nDistance traveled: 556 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\nSpiny dosfish\n1\n4\nBis skate\n3\n11\nPacific herring\n10\n36\nNorthern anchovy\n3\n11\nNight smelt\n125\n450\nWhitebait smelt\n23\n83\nPacific tomcod\n1421\n5112\nBay pipefish\n3\n11\nShiner perch\n12\n43\nPacific stashorn sculpin\n26\n94\nPricklebreast poacher\n5\n18\nSpeckled sanddab\n13\n47\nButter sole\n122\n439\nEnglish sole\n967\n3478\nC-O sole\n1\n4\nSand sole\n1\n4\nDunseness crab\n221\n795\nTOTALS\n2957\n10640\nH=1.96 J=0.48 SD=0.65 SR=2.00\n19","STATION: 7\nGear: 8-m trawl\nDate: 2 Oct 1985\nDepth: 7.9 m\nBottom salinity: 32.9 ppt\nBottom temperature: 10.7 C\nDistance traveled: 500 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n4\n16\nNorthern anchovy\n85\n340\nNight smelt\n198\n792\nLarval smelt\n606\n2424\nWhitebait smelt\n54\n216\nPacific tomcod\n58\n232\nBay pipefish\n2\n8\nSpotfin surfperch\n30\n120\nBuffalo sculpin\n1\n4\nPacific stashorn sculpin\n20\n80\nUnidentified sculpin\n1\n4\nSpeckled sanddab\n25\n100\nButter sole\n5\n20\nEnglish sole\n37\n148\nSand sole\n14\n56\nDunseness crab\n41\n164\nTOTALS\n1181\n4724\nH=2.46\nJ=0.62\nSD=0.70\nSR=2.12\n20","STATION: 8\nGear: 8-m trawl\nDate: 2 Oct 1985\nDepth: 9.1 m\nBottom salinity: 32.9 ppt\nBottom temperature: 10.9 C\nDistance traveled: 611 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nEnglish sole\n1\n3\nTOTALS\n1\n3\nH=0.00 J=0.00 SD=0.00 SR=0.00\n21","STATION: 9\nGear: 8-m trawl\nDate: 3 Oct 1985\nDepth: 7.9 m\nBottom salinity: 31.2 ppt\nBottom temperature: 12.5 C\nDistance traveled: 259 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nPacific tomcod\n5\n39\nBay pipefish\n7\n54\nShiner perch\n66\n510\nSnake prickleback\n7\n54\nPacific stashorn sculpin\n29\n224\nSpeckled sanddab\n29\n224\nEnglish sole\n130\n1004\nSand sole\n1\n8\nDunseness crab\n225\n1737\nTOTALS\n499\n3854\nH=2.14 J=0.68 SD=0.70 SR=1.29\n22","STATION: 10\nGear: 8-m trawl\nDate: 3 Oct 1985\nDepth: 10.1 m\nBottom salinity: 31.4 ppt\nBottom temperature: 12.4 C\nDistance traveled: 389 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\nSpiny dogfish\n20\n103\nPacific herring\n28\n144\nNorthern anchovy\n157\n807\n15\nPacific tomcod\n3\n5\nShiner perch\n26\nKelp greenling\n1\n5\nPacific stashorn sculpin\n7\n36\nSpeckled sanddab\n18\n93\nEnglish sole\n30\n154\nDunseness crab\n131\n674\nTOTALS\n400\n2057\nH=2.28\nJ=0.69\nSD=0.72\nSR=1.50\n23","STATION: 11\nGear: 8-m trawl\nDate: 3 Oct 1985\nDepth: 14.9 m\nBottom salinity: 30.9 ppt\nBottom temperature: 12.7 C\nDistance traveled: 333 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dosfish\n50\n300\nNorthern anchovy\n23\n138\nPacific tomcod\n223\n1339\nShiner perch\n245\n1471\nSpotfin surfperch\n5\n30\nWalleye surfperch\n1\n6\nSaddleback sunnel\n29\n174\nKelp greenling\n31\n186\nLinscod\n1\n6\nBuffalo sculpin\n56\n336\nPacific stashorn sculpin\n17\n102\nCabezon\n1\n6\nUnidentified sculpin\n59\n354\nSpeckled sanddab\n14\n84\nEnglish sole\n145\n871\nDunseness crab\n724\n4348\nCancer oresonensis\n1\n6\nRed rock crab\n3\n18\nTOTALS\n1628\n9775\nH=2.63 J=0.63 SD=0.75 SR=2.30\n24","STATION: 12\nGear: 8-m trawl\nDate: 4 Oct 1985\nDepth: 3.7 m\nBottom salinity: 32.0 ppt\nBottom temperature: 11.4 C\nDistance traveled: 463 E\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\n6\n26\nSpiny dogfish\n1\n4\nShiner perch\n1\n4\nPacific sand lance\n2\n9\nBuffalo sculpin\nPacific stashorn sculpin\n11\n48\nUnidentified sculpin\n2\n9\n26\n112\nSpeckled sanddab\n69\n298\nEnglish sole\n1\n4\nSand sole\n87\n376\nDunseness crab\n206\n890\nTOTALS\nSR=1.69\nH=2.05\nJ=0.62\nSD=0.69\n25","STATION: 13\nGear: 8-m trawl\nDate: 7 Oct 1985\nDepth: 9.1 m\nBottom salinity: 32.6 ppt\nBottom temperature: 10.0 C\nDistance traveled: 250 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n6\n48\nPacific tomcod\n4\n32\nBay pipefish\n4\n32\nPacific stashorn sculpin\n20\n160\nSpeckled sanddab\n22\n176\nEnglish sole\n34\n272\nSand sole\n20\n160\nDunseness crab\n144\n1152\nTOTALS\n254\n2032\nH=2.05 J=0.68 SD=0.64 SR=1.26\n26","STATION: 14\nGear: 8-m trawl\nDate: 7 Oct 1985\nDepth: 10.4 m\nBottom salinity: 32.6 ppt\nBottom temperature: 10.0 C\nDistance traveled: 250 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n12\n96\nPacific herrins\n34\n272\nNorthern anchovy\n258\n2064\nPacific tomcod\n7\n56\nShiner perch\n1\n8\nSnake prickleback\n2\n16\nPacific stashorn sculpin\n13\n104\nSpeckled sanddab\n7\n56\nEnglish sole\n128\n1024\nSand sole\n2\n16\nDunseness crab\n127\n1016\nTOTALS\n591\n4728\nH=2.17 J=0.63 SD=0.71 SR=1.57\n27","STATION: 15\nGear: 8-m trawl\nDate: 7 Oct 1985\nDepth: 10.7 m\nBottom salinity: 32.4 ppt\nBottom temperature: 10.3 C\nDistance traveled: 222 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dosfish\n4\n36\nPacific herring\n19\n171\nNorthern anchovy\n7\n63\nPacific tomcod\n11\n99\nBay pipefish\n1\n9\nSnake prickleback\n13\n117\nPacific stashorn sculpin\n40\n360\nSpeckled sanddab\n3\n27\nEnglish sole\n210\n1892\nSand sole\n1\n9\nDunseness crab\n185\n1667\nTOTALS\n494\n4450\nH=2.01 J=0.58 SD=0.67 SR=1.61\n28","STATION: 16\nGear: 8-m trawl\nDate: 7 Oct 1985\nDepth: 4.3 E\nBottom salinity: 31.1 ppt\nBottom temperature: 11.7 C\nDistance traveled: 333 E\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\nSpiny dogfish\n1\n6\n1\n6\nPacific herring\n9\n54\nShiner perch\nPacific stashorn sculpin\n9\n54\nSpeckled sanddab\n6\n36\n18\n108\nEnglish sole\n172\n1033\nDunseness crab\n216\n1297\nTOTALS\nSD=0.35\nSR=1.12\nH=1.16\nJ=0.41\n29","STATION: 17\nGear: 8-m trawl\nDate: 7 Oct 1985\nDepth: 13.4 m\nBottom salinity: 32.7 ppt\nBottom temperature: 10.2 C\nDistance traveled: 370 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n111\n600\nPacific herring\n2\n11\nNorthern anchovy\n138\n746\nNisht smelt\n1\n5\nPacific tomcod\n104\n562\nBay pipefish\n6\n32\nShiner perch\n304\n1643\nSpotfin surfperch\n5\n27\nSnake prickleback\n1\n5\nSaddleback sunnel\n7\n38\nKelp greenling\n24\n130\nLinscod\n3\n16\nBuffalo sculpin\n61\n330\nRed Irish lord\n31\n168\nPacific stashorn sculein\n12\n65\nSpeckled sanddab\n1\n5\nEnglish sole\n40\n216\nDunseness crab\n1540\n8324\nRed rock crab\n14\n76\nKelp crab\n1\n5\nTOTALS\n2406\n13004\nH=1.99 J=0.46 SD=0.57 SR=2.44\n30","STATION: 18\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 8.2 m\nBottom salinity: 33.0 ppt\nBottom temperature: 9.9 C\nDistance traveled: 352 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nPacific herrins\n1\n6\nNorthern anchovy\n3\n17\nPacific tomcod\n1\n6\nShiner perch\n2\n11\nKelp greenlins\n5\n28\nRed Irish lord\n1\n6\nPacific stashorn sculpin\n9\n51\nSpeckled sanddab\n9\n51\nEnglish sole\n135\n767\nSand sole\n1\n6\nDunseness crab\n242\n1375\nPurple shore crab\n1\n6\nTOTALS\n410\n2330\nH=1.49\nJ=0.42\nSD=0.54\nSR=1.83\n31","STATION: 19\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 12.8 m\nBottom salinity: 33.1 ppt\nBottom temperature: 9.2 C\nDistance traveled: 185 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nPacific tomcod\n1\n11\nKelp greenling\n1\n11\nPacific stashorn sculpin\n2\n22\nSpeckled sanddab\n15\n162\nEnglish sole\n2\n22\nSand sole\n4\n43\nDunseness crab\n75\n811\nTOTALS\n100\n1082\nH=1.27\nJ=0.45\nSD=0.41\nSR=1.30\n32","STATION: 20\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 8.2 E\nBottom salinity: 33.3 ppt\nBottom temperature: 9.1 C\nDistance traveled: 222 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\n7\n63\nSpiny dogfish\n1\n9\nPacific herring\n9\n1\nPacific tomcod\n1\n9\nBay pipefish\n7\n63\nPacific stashorn sculpin\n5\n45\nSpeckled sanddab\n7\n63\nSand sole\n89\n802\nDunseness crab\n118\n1063\nTOTALS\nH=1.40 J=0.47 SD=0.42 SR=1.47\n33","STATION: 21\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 13.4 E\nBottom salinity: 33.1 ppt\nBottom temperature: 9.4 C\nDistance traveled: 185 E\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nPacific tomcod\n3\n32\nBay pipefish\n89\n962\nShiner perch\n6\n65\nSaddleback sunnel\n2\n22\nPacific stashorn sculpin\n4\n43\nSpeckled sanddab\n3\n32\nEnglish sole\n2\n22\nDunseness crab\n21\n227\nTOTALS\n130\n1405\nH=1.59 J=0.53 SD=0.50 SR=1.44\n34","STATION: 22\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 10.4 E\nBottom salinity: 31.8 ppt\nBottom temperature: 10.9 C\nDistance traveled: 426 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nSpiny dogfish\n3\n14\nNorthern anchovy\n3\n14\nBay pipefish\n5\n23\nShiner perch\n9\n42\nSnake prickleback\n1\n5\n55\nPacific sand lance\n258\nSpeckled sanddab\n1\n5\nEnglish sole\n18\n85\nSand sole\n3\n14\nDunseness crab\n52\n244\nTOTALS\n150\n704\nH=2.27\nJ=0.68\nSD=0.72\nSR=1.80\n35","STATION: 23\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 9.1 m\nBottom salinity: 32.6 ppt\nBottom temperature: 10.1 C\nDistance traveled: 574 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nBis skate\n1\n3\nBay pipefish\n1\n3\nShiner perch\n1\n3\nWalleye surfperch\n10\n35\nSnake prickleback\n1\n3\nSaddleback sunnel\n1\n3\nKelp greenling\n181\n631\nLinscod\n1\n3\nBuffalo sculpin\n41\n143\nPacific stashorn sculpin\n4\n14\nCabezon\n1\n3\nSpeckled sanddab\n22\n77\nEnglish sole\n136\n474\nDunseness crab\n668\n2328\nRed rock crab\n4\n14\nTOTALS\n1073\n3737\nH=1.72 J=0.44 SD=0.57 SR=2.01\n36","STATION: 24\nGear: 8-m trawl\nDate: 8 Oct 1985\nDepth: 12.2 m\nBottom salinity: 33.0 ppt\nBottom temperature: 9.6 C\nDistance traveled: 630 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\n5\n16\nSpiny dogfish\n4\n13\nPacific tomcod\n4\n13\nShiner perch\n3\n10\nWalleye surfperch\n6\n19\nKelp greenling\nPacific stashorn sculpin\n1\n3\n40\n127\nSpeckled sanddab\n3\n10\nEnglish sole\n2\n6\nSand sole\n306\n971\nDunseness crab\n374\n1188\nTOTALS\nH=1.08 J=0.32 SD=0.32 SR=1.52\n37","STATION: 25\nGear: 8-m trawl\nDate: 9 Oct 1985\nDepth: 9.1 m\nBottom salinity: 32.9 ppt\nBottom temperature: 9.6 C\nDistance traveled: 574 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nPacific tomcod\n1\n3\nBay pipefish\n2\n7\nShiner perch\n818\n2850\nWalleye surfperch\n18\n63\nSaddleback sunnel\n1\n3\nKelp greenling\n182\n634\nLinscod\n4\n14\nBuffalo sculpin\n60\n209\nRed Irish lord\n3\n10\nPacific stashorn sculpin\n10\n35\nSpeckled sanddab\n16\n56\nEnglish sole\n119\n415\nDunseness crab\n1281\n4463\nRed rock crab\n14\n49\nCancer sracilis\n1\n3\nTOTALS\n2530\n8814\nH=1.85 J=0.47 SD=0.63 SR=1.79\n38","STATION: 26\nGear: 8-m trawl\nDate: 9 Oct 1985\nDepth: 10.1 m\nBottom salinity: 33.0 ppt\nBottom temperature: 9.2 C\nDistance traveled: 352 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\nPacific tomcod\n2\n11\nShiner perch\n1\n6\n11\nSnake prickleback\n2\nPacific stashorn sculpin\n21\n119\nSpeckled sanddab\n16\n91\nEnglish sole\n50\n284\n2886\nDunseness crab\n508\n3408\nTOTALS\n600\nH=0.88\nJ=0.31\nSD=0.27\nSR=0.94\n39","STATION: 27\nGear: 8-m trawl\nDate: 9 Oct 1985\nDepth: 10.7 E\nBottom salinity: 30.5 ppt\nBottom temperature: 10.8 C\nDistance traveled: 333 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\n6\nSpiny dogfish\n1\n3\n18\nPacific herring\n15\n90\nNorthern anchovy\n14\n84\nLonsfin smelt\n36\nWhitebait smelt\n6\nPacific tomcod\n200\n1201\n1134\n6811\nShiner perch\n5\n30\nSpotfin surfperch\n2\n12\nWalleye surfperch\nSnake prickleback\n13\n78\n12\nSaddleback sunnel\n2\nPacific stashorn sculpin\n16\n96\n18\nSpeckled sanddab\n3\n212\n1273\nEnglish sole\n13\n78\nSand sole\n82\n492\nDunseness crab\n1721\n10335\nTOTALS\nH=1.74 J=0.43 SD=0.53 SR=2.01\n40","STATION: 28\nGear: 8-m trawl\nDate: 9 Oct 1985\nDepth: 12.8 m\nBottom salinity: 33.0 ppt\nBottom temperature: 9.1 C\nDistance traveled: 574 m\nNumber\nNo. Per\nCaptured\nHectare\nSpecies\n711\nSpiny dogfish\n204\n641\nPacific tomcod\n184\n166\n578\nShiner perch\n31\nSaddleback sunnel\n9\n5\n17\nKelp greenlins\nPacific stashorn sculpin\n29\n101\n70\n244\nEnglish sole\n7\nSand sole\n2\n227\n791\nDunseness crab\n3\nRed rock crab\n1\n897\n3124\nTOTALS\nH=2.49 J=0.75 SD=0.80 SR=1.32\n41","STATION: 29\nGear: 8-m trawl\nDate: 9 Oct 1985\nDepth: 5.8 m\nBottom salinity: 31.5 ppt\nBottom temperature: 10.5 C\nDistance traveled: 315 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nWhitebait smelt\n1\n6\nPacific tomcod\n2\n13\nBay pipefish\n3\n19\nSnake prickleback\n3\n19\nSaddleback sunnel\n2\n13\nBlack rockfish\n1\n6\nSpeckled sanddab\n7\n44\nEnglish sole\n43\n273\nDunseness crab\n165\n1048\nTOTALS\n227\n1441\nH=1.30\nJ=0.41\nSD=0.43\nSR=1.47\n42","STATION: 30\nGear: 8-m trawl\nDate: 9 Oct 1985\nDepth: 9.1 m\nBottom salinity: 32.5 ppt\nBottom temperature: 9.8 C\nDistance traveled: 685 m\nNumber\nNo. Per\nSpecies\nCaptured\nHectare\nBay pipefish\n2\n6\nShiner perch\n73\n213\nWalleye surfperch\n21\n61\nSaddleback sunnel\n1\n3\nKelp greenlins\n373\n1089\nLingcod\n6\n18\nBuffalo sculpin\n74\n216\nRed Irish lord\n22\n64\nPacific stashorn sculpin\n8\n23\nSpeckled sanddab\n59\n172\nEnglish sole\n189\n552\nDunseness crab\n1521\n4441\nRed rock crab\n16\n47\nTOTALS\n2365\n6905\nH=1.80 J=0.49 SD=0.55 SR=1.54\n#\n43"]}