Biodeposition and uptake of polychlorinated biphenyls and cadmium by zebra mussel, Dreissena polymorpha (RAC project number 594g): Final report
Technical Report
·
OSTI ID:292095
This report describes investigations of the biodeposition and accumulation of polychlorinated biphenyls (PCBs) and cadmium by zebra mussels in western Lake Erie and Hamilton Harbour. A general introduction reviews the characteristics of PCBs and cadmium, contaminant cycling and bioavailability, and the uptake and deposition of contaminants by zebra mussels. Section two describes the investigation of the effects on PCB and cadmium sedimentation of zebra mussel biodeposition. Methodology involved using sediment traps, each containing 300-500 mussels, deployed at selected sites at two depths (near the top and the bottom of the water column). Biodeposition models are proposed and field results are compared to predictions of correlations with the factors thought to affect deposition. The third section describes the investigation of PCB and cadmium accumulation by mussels in which mussel tissue samples were collected and analyzed. Bioaccumulation models are also proposed and field results are compared with predictions. Finally, potential ecological implications of the results are discussed.
- Research Organization:
- Ontario Environmental Research Program, Toronto, Ontario (Canada)
- OSTI ID:
- 292095
- Report Number(s):
- MIC--98-06691/XAB; ISBN 0-7778-7552-7
- Country of Publication:
- United States
- Language:
- English
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