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

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Robichaud, D., J.J. Smith, K. K. English and S.C. Tyerman. In prep. Assessment of themigration and survival of Fraser sockeye using radio-telemetry and the operation oflower Fraser fishwheels in 2010. Report prepared by LGL Limited for the PacificSalmon Commission and Pacific Salmon Foundation, Vancouver.Roos, J.F. 1991. Restoring Fraser River Salmon. A history of the International PacificSalmon Fisheries Commission, 1937-1985. Published by the Pacific SalmonCommission, Vancouver, Canada.Roscoe, D.W. and C. Pollen. 2010. Report cards for three BC Recreational fisheries.Watershed Watch Salmon Society.Ruggerone, G.T. and M.R. Link. 2006. Collapse of Kvichak sockeye salmon productionbrood years 1991-1999: Population characteristics, possible factors, andmanagement implications. Unpublished report prepared by Natural ResourcesConsultants, Inc. and LGL Alaska Research Associates, Inc. for the North PacificResearch Board, Anchorage, AK and Bristol Bay Science and Research Institute,Dillingham, AK. xiv + 103 p.Ryall, P. and B. Ionson. 2005. Catch Monitoring – Southern BC Fisheries. Submitted tothe 2004 Southern Salmon Fishery Post-Season Review Committee chaired by theHonourable Bryan Williams. 25pp.Salomone, P. 2006. Summary of Bristol Bay sockeye salmon harvests by gear type,2001–2006; a report to the Alaska Board of Fisheries. Alaska Department of Fishand Game, Special Publication No. 06-27, Anchorage.Salomone, P. 2009. Summary of Bristol Bay sockeye salmon harvests by gear type,2007-2009. Spec. Pub. 09-17. Alaska Department of Fish and Game, Anchorage.Schelle, K., K. Iverson, N. Free-Sloan and S. Carlson. 2004. Bristol Bay salmon driftgillnet fishery optimum number report, Alaska Commercial Fisheries EntryCommission Report 04-3N, Juneau, AK.http://www.cfec.state.ak.us/RESEARCH/04_3n.htm.Schindler, D.E., R. Hilborn, B. Chasco, C.P. Boatright, T.P. Quinn, L.A. Rogers andM.S. Webster. 2010. Population diversity and the portfolio effect in an exploitedspecies. Nature. 465:609-613.Schreck, C.B., B.L. Olla and M.W. Davis. 1997. Behavioural responses to stress. In:Iwama, G.K. et al. (eds), Fish Stress and Health in Aquaculture. Seminar Series,Society for Experimental Biology. 62:145-170.Schubert, N.D. and R. Houtman. 2007. Estimating the 1998 Fraser River sockeye salmon(Oncorhynchus nerka) escapement, with special reference to the effect of migrationstress on estimation accuracy. Can. Tech. Rep. Fish. Aquat. Sci. 2732: ix + 121pp.187
Seibel, M.C. 1967. The use of expanded ten-minute counts as estimates of hourly salmonmigration past the counting towers in Alaskan rivers. Alaska Department of Fishand Game, Division of Commercial Fisheries, Informational Leaflet 101, Juneau.Shardlow, T.F., K.K. English, T. Hoyt, G.E. Gillespie and T.A. Calvin. 1989. Strait ofGeorgia creel survey sport fishery statistics, 1983. Can. MS Rep. Fish. Aquat. Sci.1872.Shardlow, T.F. and L.D. Collicutt. 1989a. Strait of Georgia sport fishery creel surveystatistics for salmon and groundfish, 1984. Can. Manuscr. Rep. Fish. Aquat. Sci.2032: 61pp.Shardlow, T.F. and L.D. Collicutt. 1998b. Strait of Georgia sport fishery creel surveystatistics for salmon and groundfish, 1985. Can. Manuscr. Rep. Fish. Aquat. Sci.2033: 60pp.Shardlow, T.F. and L.D. Collicutt. 1989c. Strait of Georgia sport fishery creel surveystatistics for salmon and groundfish, 1986. Can. Manuscr. Rep. Fish. Aquat. Sci.2034: 61pp.Shardlow, T.F. and L.D. Collicutt. 1989d. Strait of Georgia sport fishery creel surveystatistics for salmon and groundfish, 1987. Can. Manuscr. Rep. Fish. Aquat. Sci.2035: 62pp.Shardlow, T.F. and L.D. Collicutt. 1989e. Strait of Georgia sport fishery creel surveystatistics for salmon and groundfish, 1988. Can. Manuscr. Rep. Fish. Aquat. Sci.2036: 63pp.Smith, J.J., D. Robichaud, K. K. English and P. Johnson. 2009. Feasibility of fishwheeluse for escapement estimation and results from the salmon radio-tracking on thelower Fraser River in 2008. Report prepared by LGL Limited for the PacificSalmon Commission, Vancouver. 104pp.Spangler, P.J. and H.L. Rietze. 1958. Field report on the evaluation of towers forcounting migrating red salmon in Bristol Bay, 1957. Mimeo Report to the U.S.Department of the Interior, U.S. Fish and Wildlife Service, Bureau of CommercialFisheries, Juneau, Alaska.Staley, M. 2010. Fraser River Sockeye Spawning Initiative (FRSSI): A Review for theCohen Commission. Vancouver, BC. 33p.Thompson, W.F. 1962. The research program of the Fisheries Research Institute inBristol Bay, 1945–1958. In: T.S.Y. Koo (ed.) Studies of Alaskan red salmon.University of Washington Press, Seattle.188
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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
Page 140 and 141: Millions of sockeyeYearFigure 27 Hi
Page 142 and 143: management structure complements th
Page 144 and 145: 1.5Togiak4.03.5NushagakMillions of
Page 146 and 147: Millions of sockeye7.06.05.04.03.02
Page 148 and 149: logical given the dynamics of the r
Page 150 and 151: 1.61.4Number of fish (millions)1.21
Page 152 and 153: Pre-season forecastsAs noted above,
Page 154 and 155: 8.0y = 0.79x + 1.59R² = 0.417.8Log
Page 156 and 157: 12010080MAPE60402001971-1980 1981-1
Page 158 and 159: Median percent error (MPE)3020100-1
Page 160 and 161: Table 28 Average age composition of
Page 162 and 163: dampeners to reduce surface turbule
Page 164 and 165: current year’s run is accounted f
Page 166 and 167: and 1999 Revised Annexes. This inte
Page 168 and 169: Bristol Bay was in 1997 when there
Page 170 and 171: 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 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 222 and 223: Table E-4 Annual Johnstone Strait e
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 238 and 239: Fraser River Indicator Stocks (list
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Fraser River Indicator Stocks (list
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Appendix H Pre-season forecast: sum
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ManagementGroup(IndicatorStock)MAPE
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ManagementGroup(IndicatorStock)MAPE
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Appendix I Methods of In-season Sto
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Marine Gillnet Test FisheriesThe gi
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Expansion line (x1000)9080706050403
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Table I-2 Mean values for purse sei
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Figure I-5 Map of test fishing loca
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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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