Assimilation efficiency of organic contaminants from algae by the zebra mussel, Dreissena polymorpha
Conference
·
OSTI ID:225204
- Ohio State Univ., Columbus, OH (United States). Dept. of Entomology
- NOAA/Great Lakes Environmental Research Lab., Ann Arbor, MI (United States)
A high percent of hydrophobic contaminants in the Great Lakes are particulate bound. Due to large populations and its high filtering capacity, the zebra mussel, Dreissena polymorpha, has the potential to re-direct contaminants from the water column by removal of contaminated particles, including algae. Throughout a season, zebra mussels feed on a variety of algal species. To determine if there are algal species differences in assimilation efficiency of contaminants, the percent assimilation efficiency (%AE) of three PCB congeners and DDE from three algae species were investigated using pulse-chase methodology. Results suggest no species difference in %AE for hexachlorobiphenyl (HCBP) from the algae Chlorella vulgaris and Chlamydomonas rheinhardtii. The mean %AE of HCBP from C. vulgaris was 60.9 (SE = {+-} 4.1), as compared to 68.6 (SE = {+-} 2.9) from C. rheinhardtii. Results from additional compounds and algal species will be discussed. The results of this study will allow them to refine the mechanism of contaminant uptake in aquatic filter feeders and assess the effect of zebra mussels on contaminant cycling in the Great lakes.
- OSTI ID:
- 225204
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
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