Potential Effects of Contaminants on Fraser River Sockeye Salmon

Table 5.21. Summary <strong>of</strong> muscle tissue data collected from Weaver and Adams sockeye and Thompson chinook salmon populations 1 .Contaminant <strong>of</strong>ConcernnnDetect% Non-DetectMeanSDGeometricMeanMinMaxPercentile Distribution5th 10th 25th 50th 75th 90th 95thSamples Collected in the Spawning GroundsMetals (mg/g)Arsenic 13 6 53.8% 0.155 0.181 0.070 < 0.040 0.56 0.020 0.020 0.020 0.025 0.300 0.380 0.464Cadmium 13 3 76.9% 0.034 0.034 0.027 < 0.040 0.14 0.020 0.020 0.020 0.020 0.020 0.050 0.086Copper 13 13 0.0% 6.131 19.2 1.13 0.7 70 0.700 0.700 0.800 0.800 0.800 1.000 28.6Lead 13 13 0.0% 0.210 0.130 0.180 0.065 0.479 0.091 0.109 0.122 0.201 0.219 0.428 0.477Mercury 13 13 0.0% 0.034 0.016 0.031 0.019 0.067 0.020 0.020 0.022 0.026 0.041 0.058 0.063Selenium 13 1 92.3% 0.269 0.430 0.181 < 0.300 1.7 0.150 0.150 0.150 0.150 0.150 0.150 0.770Thallium 13 0 100.0% 0.002 0.000 0.002 < 0.004 < 0.005 0.002 0.002 0.002 0.003 0.003 0.003 0.003Vanadium 13 10 23.1% 0.034 0.020 0.028 < 0.020 0.070 0.010 0.010 0.020 0.030 0.050 0.058 0.064Zinc 13 13 0.0% 9.41 9.76 7.68 5.50 41.8 5.63 5.85 6.39 6.80 7.02 8.10 21.68Pesticides (pg/g)Aldrin 23 0 100.0% 0.822 0.357 0.759 < 0.69 < 3.95 0.397 0.434 0.648 0.760 0.893 1.25 1.33a-HCH 22 10 54.5% 15.3 28.1 2.12 < 0.21 98.2 0.109 0.190 0.340 1.28 11.8 48.5 81.2b-HCH 23 7 69.6% 5.68 22.0 0.823 < 0.24 106.6 0.130 0.218 0.348 0.570 1.81 3.60 3.87Chlordane (total) 23 23 0.0% 866 404 769 148 1951 391 476 571 830 1077 1345 1406Dieldrin 23 23 0.0% 356 241 294 71.0 1088 104 144 196 310 415 567 878g-HCH 21 12 42.9% 6.74 11.1 1.85 < 0.46 40.7 0.275 0.280 0.595 0.930 7.33 21.3 26.3Heptachlor 23 5 78.3% 1.91 1.16 1.62 < 0.99 < 8.83 0.852 0.868 1.04 1.39 2.16 3.93 4.01Moethoxychlor 23 0 100.0% 5.31 3.95 4.50 < 5.17 < 36.7 2.66 2.80 3.50 3.67 4.71 8.76 14.018Mirex 23 23 0.0% 44.8 10.5 43.6 20.2 69.7 29.9 34.9 39.2 44.5 49.3 58.4 59.0Sum DDD 23 23 0.0% 955 436 842 113 2044 503 554 668 887 1287 1446 1629Sum DDE 23 23 0.0% 3995 1678 3708 2241 7410 2367 2572 2735 3373 4898 6914 7101Sum DDT 23 23 0.0% 983 477 870 298 2048 411 445 594 972 1230 1691 17001 Data obtained from Siska Traditions Society 2009.n = number, detect = detected, SD = standard deviation.T-242