title: In situ biomonitoring of caged, juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Lower Duwamish Waterway.
abstract: Contaminated sediments may have wide-ranging impacts on human and ecological health. A series of in situ caged exposure studies using juvenile Chinook salmon was conducted in the Lower Duwamish Waterway (LDW). Chemical analysis of sediment, water, and fish tissue were completed. Additionally, in 2004, DNA adducts in hepatic and gill tissues were measured. Gills contained significantly higher DNA adducts at stations B2 and B4, prompting further analysis of gills in 2006 and 2007. Fluorescent aromatic compounds (FACs) in bile, and CYP1A1 in hepatic tissue were also measured during 2006 and 2007, respectively. FACs in field-caged fish were comparable or significantly higher than wild-caught fish LDW fish and significantly higher than lab fish after only 8-10 days, demonstrating the equivalency of exposure to that of migrating salmon. Furthermore, selected biomarkers appear to be capable of detecting spikes in contamination between sampling years, emphasizing the need for multiple year data collection.
authors: Department of Environmental and Occupational Health, School of Rural Public Health, Texas A&M Health Science Center, 101 Adriance Road, College Station, TX 77843, United States.
authors: Matthew A
authors: MA
authors: Kelley
authors: Annika
authors: A
authors: Gillespie
authors: Guo-Dong
authors: GD
authors: Zhou
authors: Shu
authors: S
authors: Zhang
authors: James P
authors: JP
authors: Meador
authors: Bruce
authors: B
authors: Duncan
authors: Kirby C
authors: KC
authors: Donnelly
authors: Thomas J
authors: TJ
authors: McDonald
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001646:Bile / Q000737:chemistry; D001822:Body Burden; D019363:Cytochrome P-450 CYP1A1 / Q000378:metabolism; D018736:DNA Adducts / Q000032:analysis; D004784:Environmental Monitoring / Q000706:statistics & numerical data*; D004785:Environmental Pollutants / Q000032:analysis*; D019015:Geologic Sediments / Q000032:analysis*; D008099:Liver / Q000378:metabolism; D011078:Polychlorinated Biphenyls / Q000032:analysis; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis; D045483:Rivers; D012474:Salmon / Q000378:metabolism*; D012623:Seawater; D014861:Washington
chemical_list: D018736:DNA Adducts; D004785:Environmental Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D011078:Polychlorinated Biphenyls; D019363:Cytochrome P-450 CYP1A1