Table 1 Concentration with (95% confidence intervals) of persistent organic chemicals in anadromous fish collected from Penobscot river.
Species | Year | Composite samples | Number of fish per composite | Percent moisture | Percent lipids | Composite, nanogram/gram [wet weight] (3 replicates/composite averaged) | ||
|---|---|---|---|---|---|---|---|---|
Total PCBs | Total PBDEs | Dioxin/Furansa | ||||||
Alewife | 2017 | 5 | 6 | 76.3 | 1.9 | 14.3 (11.6–17) | 1.92 (1.44–2.39) | 0.084 (0.066–0.103) |
2018 | 5 | 7 | 77.1 | 2.6 | 10.3 (9.23–11.4)* | 1.74 (1.67–1.8) | 0.091 (0.079–0.103) | |
American Shad Roe | 2017 | 5 | 7 | 70.6 | 5.1 | 6.37 (4.37–8.37) | 0.851 (0.66–1.04) | 0.061 (0.049–0.074) |
2018 | 6 | 5 | 75.1 | 3.4 | 8.65 (7.48–9.82) | 1.18 (0.838–1.51) | 0.037 (0.033–0.041)**,b | |
American Shad Fillet | 2017 | 5 | 3 | 75.1 | 7.8 | 24.2 (18.9–29.4) | 2.73 (2.03–3.43) | 0.078 (0.064–0.093)a |
2018 | 6 | 3 | 73.3 | 3.6 | 14.9 (13.4–16.3)** | 2.44 (2.34–2.53) | 0.105 (0.097–0.113)** | |
Blueback Herring | 2017 | 5 | 5 | 76.2 | 3.4 | 17.2 (14.5–20) | 2.16 (1.78–2.54) | 0.062 (0.053–0.070) |
2018 | 5 | 6 | 76.5 | 2.8 | 19.2 (16.4–22.1) | 2.31 (2.06–2.55) | 0.065 (0.042–0.087) | |
Rainbow Smelt | 2017 | 5 | 3 | 81.6 | 1.2 | 10.2 (3.57–16.9) | 2.30 (1.54–3.07) | 0.137 (0.096–0.177) |
Rainbow Smelt, large | 2018 | 3 | 10 | 79.8 | 1.6 | 18.6 (13–24.3) | 5.92 (3.93–7.91) | 0.125 (0.103–0.147) |
Rainbow Smelt, small | 2018 | 3 | 10 | 80.0 | 1.4 | 16.9 (15.8–18) | 5.15 (4.41–5.88) | 0.124 (0.111–0.136) |
Striped Bass | 2017 | 5 | 5 | 77.6 | 1.4 | 81.9 (45–119) | 3.85 (3.26–4.43) | 0.190 (0.074–0.306) |
2018 | 5 | 5 | 79.9 | 0.6 | 100 (29.2–171) | 3.83 (3.02–4.63) | 0.221 (0.186–0.256) | |
Sea Lamprey | 2017 | 6 | 3 | 76.4 | 5.0 | 14.7 (8.86–20.6) | 1.21 (0.883–1.55) | 0.053 (0.035–0.072) |
2018 | 6 | 3 | 78.0 | 3.3 | 18.1 (4.61–31.5) | 1.86 (1.26–2.45) | 0.053 (0.038–0.067) | |
