Marc Trudel

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Canada-USA Salmon Shelf Survival Study
Marc Trudel Fisheries and Oceans Canada High Seas
Salmon Program
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Snake River Spring Chinook Survival
Data from Scheuerell and Williams (2005)
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Program objectives
Assess the effects of ocean conditions and
climate change on the distribution, migration,
growth, and survival of Pacific salmon.
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ICY POINT
PORTLAND INLET
FORRESTER I.
RIVERS INLET
HECATE ST.
Vancouver Is.
TRIANGLE I.
LAPEROUSE BK
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Columbia River Salmon distribution migration
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Juvenile Columbia-Snake River Chinook
Fall Chinook
Spring Chinook
Jun Aug
Jun Aug
Sep Nov
Sep Nov
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Spring Chinook Salmon Migration Speed
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Juvenile CR Spring Chinook Migration
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Ocean Conditions Salmon growth
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Coho Growth Rate (May-Oct)
Southeast Alaska
Southern British Columbia
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Coho Feeding Rate (May-Oct)
Southeast Alaska
Southern British Columbia
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Simulated Growth of Coho (May-Oct)
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Ocean Conditions Salmon Survival
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Coho Marine Survival
Southeast Alaska
Southern British Columbia
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Snake River Spring Chinook Survival
SAR from Scheuerell and Williams (2005)
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Summary
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
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West Coast of Vancouver Island Temperature
SAR from Scheuerell and Williams (2005)
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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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(No Transcript)
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Salmon Steelhead Returns to the Bonneville Dam
Data from Fish Passage Center
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Columbia River Coho
Apr May
Jun Aug
Sep Nov
Feb May