Contaminant Exposure in Juvenile Salmon: Table 8

U.S. Dept Commerce/NOAA/NMFS/NWFSC/Publications

NOAA Tech Memo NMFS NWFSC-8: Contaminant Exposure in Juvenile Salmon (cont): Table 8

Table 8.
Survival of juvenile chinook salmon(Oncohynchus tschawytcha) over a 40 day period in 1990 and an 84 day period in 1991.


Site

Percent Survival
1990
1991
Green River System
Green River Hatchery
86
(n=100)
77
(n=100)
Duwamish Waterway
56a
(n=50)
59a
(n=100)
Nisqually River System
Kalama Creek Hatchery
88
(n=50)
---
Nisqually River estuary
81
(n=100)
---
Puyallup River System
Puyallup Hatchery
---b
---
Puyallup River estuary
58a,b
(n=50)
---
a Survival is significantly different than for salmon from their respective hatchery (p<0.05).

b Comparison is made to fish from the Kalama Hatchery.

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