Accumulation of polychlorinated biphenyl congeners in the Lake Michigan lower pelagic foodweb

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:201232

Trowbridge, A; Swackhamer, D L ^[1]

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1. Univ. of Minnesota, Minneapolis, MN (United States)

Previous research conducted in the authors` laboratory has revealed that the degree to which hydrophobic organic contaminants bioaccumulate in phytoplankton is highly dependent on contaminant physical properties, seasonal conditions and biological factors. To substantiate the laboratory findings with field data, the authors have executed an extensive sampling program in Lake Michigan. Eleven representative sites during four seasons were sampled for phytoplankton, net zooplankton, Mysis relicta and Diporeia sp. Samples were analyzed for PCE concentrations on a congener specific basis. Preliminary results indicate a parallel between bioaccumulation in field phytoplankton and PCB bioaccumulation predicted from laboratory studies. other lower foodweb organisms were used to evaluate PCB transfer from water to the foodweb and PCB transfer from one trophic level to another. Differences in biomagnification among congeners, and among trophic levels was evident.

• OSTI ID: 201232
• Report Number(s): CONF-9511137--; ISBN 1-880611-03-1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
BIOLOGICAL ACCUMULATION
CHLORINATED AROMATIC HYDROCARBONS
CRUSTACEANS
FOOD CHAINS
LAKE MICHIGAN
MONITORING
PLANKTON
POLYCHLORINATED BIPHENYLS
SEASONAL VARIATIONS
SENSITIVITY
WATER POLLUTION