Occurrence of the Asiatic Clam Corbicula Fluminea in the Maumee River and Western Lake Erie |
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Authors: | Jennifer Scott-Wasilk Gary G. Downing Jeffrey S. Lietzow |
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Affiliation: | The Toledo Edison Company, 300 Madison Avenue, Toledo, Ohio 43652 |
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Abstract: | The Asiatic clam was found in only two locations along the southern shore of the western basin of Lake Erie: the thermal plume areas of two coal-fired power plants with once-through condenser cooling systems. Three sewage treatment plant outfalls were sampled, but Corbicula were found only in the sewage treatment plant outfall that was within the thermal plume of a power plant. No Corbicula were found in the vicinity of the nuclear power plant which has a closed-cycle natural draft cooling tower, and hence no significant thermal plume.From the age of some of the specimens, this clam has probably resided in the region since 1978. The Great Lakes are farther north than the natural range of this clam, and prolonged cold temperatures in this region may be responsible for the confinement of this clam to baseload power plants with continuous thermal plumes. |
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Keywords: | Power plants thermal effects |
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