Contaminant Exposure in Juvenile Salmon: Table 4

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

NOAA Tech Memo NMFS NWFSC-8: Contaminant Exposure in Juvenile Salmon (cont): Table 4

Table 4.
Length and weight of juvenile fall chinook sampled from four hatcheries and four estuaries in 1989. Tissues were composited for use in measuring exposure to contaminants.

Site
Sample Size

(n)
Length

(mm)*
Weight

(g)*
Percent Salmon Tagged
Green River System
Green River Hatchery
122
85 ± 7
5.2±1.3
5.5%
Duwamish Waterway
215
89 ± 12
5.5±2.5
6.5%

Nisqually River System
Kalama Creek Hatchery
120
96 ± 9
7.2±2.0
21.7%
Nisqually River estuary
172
109 ± 13
10.0±3.9
11.8%

Puyallup River System
Puyallup Hatchery
115
89 ± 12
6.4±1.7
0%
Puyallup River estuary
181
90 ± 7
5.4±1.3
1.0%

Snohomish River System
Skykomish Hatchery
125
81 ± 7
4.3±1.1
0%
Snohomish River estuary
55
116 ± 26
13.8±10.5
6.0%
* values represent the mean ± standard deviation.

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