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Marc Trudel Fisheries and Oceans Canada High Seas Salmon Program Canada-USA Salmon Shelf Survival Study.

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Presentation on theme: "Marc Trudel Fisheries and Oceans Canada High Seas Salmon Program Canada-USA Salmon Shelf Survival Study."— Presentation transcript:

1 Marc Trudel Fisheries and Oceans Canada High Seas Salmon Program Canada-USA Salmon Shelf Survival Study

2 Snake River Spring Chinook Survival Data from Scheuerell and Williams (2005)

3 Program objectives Assess the effects of ocean conditions and climate change on the distribution, migration, growth, and survival of Pacific salmon.

4 Vancouver Is. TRIANGLE I. HECATE ST. FORRESTER I. ICY POINT PORTLAND INLET RIVERS INLET LAPEROUSE BK

5 Columbia River Salmon distribution & migration

6 Juvenile Columbia-Snake River Chinook Jun – Aug Fall ChinookSpring Chinook Sep – Nov

7 Spring Chinook Salmon Migration Speed

8 Juvenile CR Spring Chinook Migration

9 Ocean Conditions & Salmon growth

10 Coho Growth Rate (May-Oct) Southeast Alaska Southern British Columbia

11 Coho Feeding Rate (May-Oct) Southeast Alaska Southern British Columbia

12 Simulated Growth of Coho (May-Oct)

13 Ocean Conditions & Salmon Survival

14 Coho Marine Survival Southeast Alaska Southern British Columbia

15 Snake River Spring Chinook Survival SAR from Scheuerell and Williams (2005)

16 1. CR Fall Chinook establish coastal residence 2. CR Spring Chinook and Coho - Rapid northward migration - CR resident off WCVI and WA - Some southward migration (LOCR & SR) 3. Higher growth and survival in Alaska than southern BC 4. Marine survival of CR Chinook correlated to growth potential in British Columbia 5. Changes in growth likely due to changes in prey quality Summary

17 West Coast of Vancouver Island Temperature SR SAR SAR from Scheuerell and Williams (2005)

18 Acknowledgements David Welch (DFO - Nanaimo) Terry Beacham (DFO - Nanaimo) John Candy (DFO - Nanaimo) Dave Higgs (DFO - West Vancouver) Rusty Sweeting (DFO - Nanaimo) Joe Fisher (OSU - Corvalis) Frank Whitney (DFO - Victoria) Howard Freeland (DFO - Victoria) Moira Galbraith (DFO - Victoria) Dave Mackas (DFO - Victoria) Jen Zamon (NMFS - Oregon) Joe Orsi (NMFS - Juneau) J. Morris, M. Thiess, T. Zubkowski, H. MacLean, D. Anderson, E. Demers, P. Eveson, J. Fitzgerald, S. Grant, M. Jacobs, N. Jacques, A. Ladouceur, R. Lauzon, J. Love, G. Moody, M. Robert, S. Romaine, S. Towes, S. Tucker, T. Walker, J. Wickstead, M. Wyeth, and many other volunteers CCGS W.E. Ricker, F.V. Ocean Selector, F.V. Frosti Funding: DFO, Bonneville Power Administration

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20 Salmon & Steelhead Returns to the Bonneville Dam Data from Fish Passage Center

21 Columbia River Coho Apr – MayJun – Aug Sep – NovFeb – May


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