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Biol Bull 148: 16-25. (February 1975)
© 1975 Marine Biological Laboratory
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COPPER TOXICITY IN BUSYCON CANALICULATUM L

SUSAN B. BETZER 1 and PAUL P. YEVICH 2

1 Graduate School of Oceanography, University of Rhode Island, Kingston, Rhode Island 02881
2 National Marine Water Quality Laboratory, West Kingston, Rhode Island 02892

1. The effects of high concentrations of copper in seawater upon Busycon canaliculatum were followed histologically, by determination of tissue Cu concentrations, and by tracing uptake with radioactively labeled copper (64Cu).

2. Whelks showed a high resistance to ionic Cu, with a tolerance limit between 200-500µg/l at normal habitat temperatures for the exposure periods used (54-77 days).

3. At lethal concentrations, Cu was accumulated at the gill and osphradium; and these tissues also showed progressive histopathologic change, consisting of swelling of the gill filaments, amebocytic infiltration of the connective tissue, and necrosis and sloughing of the mucosa.






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Copyright © 1975 by the Marine Biological Laboratory.