Megan Moore, Barry Berejikian, Steve Jeffries 1 Northwest Fisheries Science Center 1/ Washington Department of Fish and Wildlife Funding sources: Washington Department of Fish and Wildlife, Nisqually Indian Tribe, NOAA Northwest Fisheries Science Center Survival of steelhead smolts through Puget Sound in relation to shifting predator-prey relationships Photo: John McMillan
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Megan Moore, Barry Berejikian, Steve Jeffries1
Northwest Fisheries Science Center
1/ Washington Department of Fish and Wildlife
Funding sources: Washington Department of Fish and Wildlife, Nisqually Indian Tribe, NOAA Northwest Fisheries Science Center
Survival of steelhead smolts through Puget Sound in relation to shifting
predator-prey relationships
Photo: John McMillan
Tag
Quantifying steelhead smolt survival
Hydrophone deploymentN = 40 (2014-2019)
Data from Moore et al. 2015. Mar. Ecol. Prog. Ser. 3
0.000.050.100.150.200.250.300.350.400.45
2006
2007
2008
2009
Estim
ated s
urviv
al thr
ough
Pug
et So
und
Migration year
Nisqually (PS) Green (PS)Skagit (PS) Skokomish (HC)Big Beef (HC) Average
Low and decreasing steelhead smolt survival in Puget Sound (2-week migration)