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TROPHIC TRANSFER OF CONTAMINANTS FROM ORGANISMS LIVING BY CHROMATED-COPPER-ARSENATE (CCA)-TREATED WOOD TO THEIR PREDATORS
Citation:
Weis, J. AND P. Weis. TROPHIC TRANSFER OF CONTAMINANTS FROM ORGANISMS LIVING BY CHROMATED-COPPER-ARSENATE (CCA)-TREATED WOOD TO THEIR PREDATORS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/235 (NTIS PB94170073), 1993.
Description:
Oysters, Crassostrea virginica (Gmelin), collected from a residential canal lined with wood treated with chromated copper arsenate (CCA) had elevated levels of the metals in their tissues. arnivorous snail, Thais haemastoma floridana (Conrad), fed the oysters gradually ate less than snails fed reference oysters, and grew less over an eight-week period. nails that ate canal oysters increased their body burden of copper about 4-fold over 8 weeks; their tissue concentrations were comparable to field-collected snails gathered from a CCA bulkhead in open water. specimens were not found within a canal. uvenile fish (Leiostomus xanthurus Lacepede and Lagodon rhomboides Linn.) were fed worms (primary Neanthes succinea Frey and Leuckart) collected from sediments adjacent to a CCA bulkhead facing open water. he worms had elevated concentrations of the metals compared to worms from a reference site. ver a 1-month period, there was a non-significant trend of lower survival of fish fed contaminated worms compared to those fed reference worms; there was no significant difference in growth. ody burdens of these fish were not significantly elevated, although fish from inside the canal had significantly higher concentrations of Cu and As than fish from the reference site.
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TROPHIC TRANSFER OF CONTAMINANTS FROM ORGANISMS LIVING BY CHROMATED-COPPER-ARSENATE (CCA)-TREATED WOOD TO THEIR PREDATORS