Fraser River Sockeye Fisheries and Fisheries Management - Cohen ...

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Table E-4 Annual Johnstone Strait estimates of the recreational fishery harvest ofsockeye for 1991, 1992, and 1999-2009.Year Boat trips Sockeye caught1991 23441992 20141993199419951996199719981999 39151 15382000 17999 7442001 6092 02002 5016 622003 13826 3842004 16367 13522005 18461 7672006 15721 54452007 16736 762008 12914 102009 15079 48Average 16124 948E-8
Table E-5 Annual WCVI estimates of the recreational fishery harvest of sockeye for1985-2009. The catch of Fraser sockeye each year was estimated as 50%of the August and September catch for Area 23B plus all the sockeyecatch from other WCVI Statistical Areas.PeriodMonitoredWCVI Statistical Areas Reporting Sockeye Catch23 123 24 124 25 125 Year126 27 127TotalSockeyeCaughtAugust-September 1Area 23 Area 23BSockeye SockeyeCatch CatchEstimatedFraserSockeyeCaught1985 Aug - Sep 2,797 2,797 2,797 286 1431986 Aug - Sep 21 21 21 2 11987 Jul-Sep 23,228 23,228 11,440 1,169 5851988 Aug - Sep 374 374 374 38 191989 Jul-Sep 794 794 750 77 381990 Jul-Sep 14,430 14,430 9,353 956 4781991 Jul-Sep 81,647 81,647 22,781 2,328 1,1641992 Jul-Sep 112,638 112,638 29,339 2,998 1,4991993 Jun - Sep 107,407 107,407 30,636 3,131 1,5651994 Jun - Aug 31,299 31,299 7,733 790 3951995 Jun - Aug 5,694 5,694 7 7 41996 Jun - Sep 33,464 7 33,471 1,366 18 161997 Jun - Sep 37,335 16 37,351 9,763 393 2131998 Jun - Sep 57,952 57,952 11,079 1,756 8781999 Jun - Sep 1,407 1,407 56 102 512000 Jun - Sep 24,314 1 24,315 na na na2001 Jun - Sep 38,866 40 1 38,907 3,078 315 1982002 Jun - Sep 55,575 142 55,717 1,656 169 2272003 Jun - Sep 53,627 43 17 2 7 53,696 5,233 535 3362004 Jun - Sep 79,244 7 23 6 6 79,286 4,677 478 2812005 Jun - Sep 30,256 76 13 - 38 - 30,383 3,128 320 2872006 Jun - Sep 26,863 366 15 358 23 24 5 27,654 1,645 168 8752007 Jul - Aug - 14 33 9 2 58 45 5 602008 Jul - Aug 16 18 4 4 42 21 2 272009 Jun - Sep 57,837 28 31 22 3 57,921 4,795 490 329Averages1995-99 27,170 12 27,175 4,454 455 232All Years 35,083 82 14 53 18 14 6 3 2 35,140 6,741 689 4031the ratio of Area 23B:Area 23 estimates of sockeye catch for 1995-99 were used to derive Area 23B estimates for other years.E-9
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Fraser River Sockeye Fisheriesand F
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EXECUTIVE SUMMARY1. Catch Monitorin
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implement harvest rate ceilings to
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Table of ContentsEXECUTIVE SUMMARY
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List of TablesTable 1 Annual estima
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List of FiguresFigure 1 Fraser sock
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Figure 21 Estimates of total catch,
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List of AppendicesAppendix A Statem
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used to (1) estimate catch for each
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FISHERIES HARVESTINGOverview of Fis
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Figure 1 Fraser sockeye marine migr
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Table 2 Summary of available inform
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Table 3 provides the annual estimat
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Table 4 Summary of available inform
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season update teleconference meetin
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Catch Estimation MethodsThe procedu
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catch estimates was detected using
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of precision. The overall rating fo
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1998-00 - No agreements with Sto:lo
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initiation of the AFS Agreements in
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Table 12 Comparison of annual socke
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Table 13 Annual estimates of the ha
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Canadian Commercial FisheriesThe pr
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logbook systems. In addition to the
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Table 15 Fraser River sockeye salmo
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Available catch estimates for the r
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Table 17 Summary of available infor
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anged from less than 100 to over 30
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Washington State Recreational Fishe
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equirements have been applied to se
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salmon were biopsied or tagged with
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Stellako-Late Stuart and 531 Adams)
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FISHERIES MANAGEMENTOverview of Pre
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parents of the recruits). Effective
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within the confidence limits. For e
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Ratio of Return to Forecast5.04.03.
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Ratio of Return to Forecast5.04.03.
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Table 20 Pre-season forecast models
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different from the straight line),
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Prediction ability of ForecastsProp
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Stock MAPEReturn Explainedby Foreca
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test fisheries are analyzed in-seas
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Inputs to the cumulative-normal mod
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eginning of the runs, but by mid-ru
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Median Absolute Percent Error (1997
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variety of hydroacoustic techniques
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enefited from improved technologies
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Post-season estimates of Escapement
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precision achieved was considerably
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m 3 /sec during the sockeye run. Fi
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Escapement TargetsOur evaluations r
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20% of the average of the 4-year se
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Table 24 Low escapement benchmarks
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Table 25 Comparison of post-season
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fisheries have been permitted to ta
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sub-dominant cycle years (e.g., 200
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SummaryLow Escapement Benchmarks (L
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Extent of OverharvestingThe estimat
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2,000,0001,800,000Early StuartCatch
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Cultus Lake Sockeye Recovery Effort
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Figure 23 Number of adult sockeye e
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Recovery ObjectivesIn anticipation
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2008 the escapement estimate was 34
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BRISTOL BAY, ALASKA SOCKEYE FISHERY
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accurate, precise, and timely, (2)
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The Bay is subjected to large tidal
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activity (Bocking and Peterman 1988
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% of total run45%40%35%30%25%20%15%
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Harvest estimation methodsTotal har
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Millions of sockeyeYearFigure 27 Hi
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management structure complements th
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1.5Togiak4.03.5NushagakMillions of
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Millions of sockeye7.06.05.04.03.02
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logical given the dynamics of the r
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1.61.4Number of fish (millions)1.21
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Pre-season forecastsAs noted above,
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8.0y = 0.79x + 1.59R² = 0.417.8Log
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12010080MAPE60402001971-1980 1981-1
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Median percent error (MPE)3020100-1
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Table 28 Average age composition of
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dampeners to reduce surface turbule
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current year’s run is accounted f
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and 1999 Revised Annexes. This inte
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Bristol Bay was in 1997 when there
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upon by managers to determine when
Page 172 and 173: STATE OF THE SCIENCECatch Monitorin
Page 174 and 175: 2006) due to concerns regarding the
Page 176 and 177: RECOMMENDATIONS1. DFO needs to ensu
Page 178 and 179: LITERATURE CITEDAdkison, M.D. and R
Page 180 and 181: Beacham, T.D., M. Lapointe, J.R. Ca
Page 182 and 183: CSAS. 2007 Pre-season run size fore
Page 184 and 185: Evans, D.G., J.B. Browning and B.G.
Page 186 and 187: Hardie, D.C., D.A. Nagtegaal, K. He
Page 188 and 189: Pacific Salmon Commission. 1998. Re
Page 190 and 191: Robichaud, D., J.J. Smith, K. K. En
Page 192 and 193: Valderrama, D. and J.L. Anderson. 2
Page 194 and 195: Appendix A Statement of Work.Cohen
Page 196 and 197: All sectors3.7 The Contractor will
Page 198 and 199: “State of the Science”. Comment
Page 200 and 201: 3.3 The Contractor will review and
Page 202 and 203: Appendix BList of requests to DFO b
Page 204 and 205: DFO Request 15: Recent CSAS documen
Page 206 and 207: Item Description DateRequestedReque
Page 208 and 209: Appendix CFirst Nation catch monito
Page 210 and 211: Table C-1 Summary of information re
Page 212 and 213: Table C-2 Weekly catch monitoring e
Page 214 and 215: Table D-1 Summary of information re
Page 216 and 217: community of Port Renfrew. The area
Page 218 and 219: IPrecision ( + % of the estimate)10
Page 220 and 221: Table E-2 Annual Strait of Georgia
Page 224 and 225: Table E-6 Lower Fraser River recrea
Page 226 and 227: 0 would mean that the forecast does
Page 228 and 229: the general ups and downs of the ob
Page 230 and 231: Appendix G Graphical representation
Page 232 and 233: Early Stuart Timing GroupEarly Stua
Page 234 and 235: Summer-run Timing GroupSummer run7.
Page 236 and 237: Fraser River Indicator Stocks (list
Page 254 and 255: Appendix H Pre-season forecast: sum
Page 256 and 257: ManagementGroup(IndicatorStock)MAPE
Page 258 and 259: ManagementGroup(IndicatorStock)MAPE
Page 260 and 261: Appendix I Methods of In-season Sto
Page 262 and 263: Marine Gillnet Test FisheriesThe gi
Page 264 and 265: Expansion line (x1000)9080706050403
Page 266 and 267: Table I-2 Mean values for purse sei
Page 268 and 269: Figure I-5 Map of test fishing loca
Page 270 and 271: Appendix J The Hydroacoustics progr
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An SEF project was secured in 2007
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Conservation action Comments Partne
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Table K-2 Summary of actions to rec
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Table L-1 Catch and escapement of s
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Table L-3 Performance criteria of p
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Ratio of annual return to the avera
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Appendix M Reviewer comments on the
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Request #5: Sockeye allocations by
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utility of pre-season forecasts. Pr
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3. Are there additional quantitativ
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made via tagging and experimentatio
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Page 60: The authors make extensive
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ensure the reader does not assume t
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The reported excerpts from Bradford
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(budgets, legal issues, pseudo-cons
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REVIEW 3/3Reviewer Name: Dr Sean Co
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season forecasts that eventually co
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allocation shows "No agreement", an
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size.Figures showing errors for pre
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Goals can easily generate confusion
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Total rows from all these tables be
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Exploitation Rate100%90%80%70%60%50
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Exploitation RateEarly Stuart90%80%
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