title: Effect of season and habitat on PCB bioaccumulation by caged bluegill sunfish deployed in a Great Lakes area of concern.
abstract: Bluegill sunfish were caged in the Detroit River, Ontario, Canada, for 64 days to determine bioaccumulation rates of PCBs. Deployments involved placing fish in cages suspended in the water (suspended cages) compared to cages partially buried in sediments. Deployments were performed in the summer and winter months. During summer, fish exhibited significant increases in body weight and lipid content (sediment associated cages only), whereas in winter, body weights did not change. Lipid normalized PCB concentrations and PCB mass in fish increased significantly with time in summer deployments, but not in winter. Fish continued to accumulate PCBs over the 64 days caging duration except for PCBs 33, 49, and 52 in sediment associated cages. There were no significant differences in the bioaccumulation of PCBs between cage types. This study confirms that biomonitoring studies using caged fish should ensure chemical toxicokinetics are consistent when comparing bioaccumulation results among sites and/or time points.
authors.affiliation: Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON, N9B 3P4, Canada, mcleod15@uwindsor.ca.
authors.forename: Anne
authors.initials: A
authors.lastname: McLeod
authors.forename: T A
authors.initials: TA
authors.lastname: Leadley
authors.forename: K G
authors.initials: KG
authors.lastname: Drouillard
authors.forename: G D
authors.initials: GD
authors.lastname: Haffner
mesh_terms: D000273:Adipose Tissue / Q000737:chemistry; D000818:Animals; D001835:Body Weight; D002170:Canada; D017753:Ecosystem; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D006114:Great Lakes Region; D010473:Perciformes / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000032:analysis / Q000378:metabolism*; D045483:Rivers / Q000737:chemistry; D012621:Seasons; D013696:Temperature; D013995:Time; D014877:Water Pollution, Chemical / Q000032:analysis
chemical_list: D011078:Polychlorinated Biphenyls