Contaminant Exposure in Juvenile Salmon:

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


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

Table 6.
Concentrations of aromatic hydrocarbons (AHs reported as low-molecular weight AHs, LAHs, alkylated LAHs, high-molecular weight AHs, HAHs, and alkylated HAHs) and chlorinated hydrocarbons ( PCBs and other CHs) in composites of stomach contents of juvenile salmon sampled in 1989 and 1990.a



Year/Site

n

LAHs
Alkylated

LAHs

HAHs
Alkylated HAHs

PCBs
Other CHs

1989
Hatcheries
7
31 ± 5.0
31 ± 12
3.4 ± 2.8
0.4 ± 0.4
86 ± 13
29 ± 6.0
Duwamish Waterway
3
5300
± 4400c
116000
± 115000c
18400
± 14000c
3000
± 1500c
300
± 40c
30
± 10
Puyallup River estuaryb
3
640 ± 270cc
2500 ± 400c
2500 ± 900c
350 ± 20c
190 ± 50c
30 ± 10
Snohomish River estuary
2
37 ± 3.0
15 ± 6.0
48 ± 10c
nd
59 ± 20
3.0 ± 1.0e
Nisqually River estuary
3
18 ± 4.0
12 ± 5.0
4.0 ± 2.0
nd
22 ± 10e
2.0 ± 1.0e
1990
Hatcheries
4
59 ± 11
270 ± 50
22 ± 0.5
20 ± 10
120 ± 20
42 ± 10
Duwamish Waterway
3
15000
± 14000c
19000
± 8000c
14000
± 9700c
3300
± 1400c
260
± 90d
41
± 20
Puyallup River estuaryb
2
16000
± 15000c
23000
± 18000c
30000
± 27000c
6500
± 5400c
260
± 70d
51
± 30
Nisqually River estuary
2
6.2 ± 1.5e
12 ± 2.0e
4.8 ± 1.5e
2.0 ± 1.0e
33 ± 8.0e
11 ± 4.0e

a See Table 2 for list of analytes analyzed. Values are expressed as ng/g, wet weight (mean ± SE).

b In Commencement Bay, the sites sampled in 1989 were the Milwaukee and Blair Waterways and in 1990 the site sampled was the City Waterway.

c Significantly different than for juvenile salmon from the hatcheries or for juvenile salmon from the Nisqually River estuary.

d Significantly different than for juvenile salmon from the Nisqually River estuary.

e Significantly different than for juvenile salmon from the hatcheries.

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