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Sublethal and histopathological effects of trace levels of tributyltin fluoride on adult oysters Crassostrea gigas

Published online by Cambridge University Press:  15 April 1990

Dominique Chagot ,
Claude Alzieu ,
Jane Sanjuan  and
Henri Grizel
Dominique Chagot
Affiliation:
IFREMER, BP 133, 17390 La Tremblade, France
Claude Alzieu
Affiliation:
IFREMER, Département Milieu et Ressources, BP 1049, 44037 Nantes Cedex 01, France
Jane Sanjuan
Affiliation:
IFREMER, Département Milieu et Ressources, BP 1049, 44037 Nantes Cedex 01, France
Henri Grizel
Affiliation:
IFREMER, BP 133, 17390 La Tremblade, France
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Abstract

Shell malformations and histological effects of environmental concentrations of TBTF (2, 13.1 and 64.8 ng/l) were assessed on adult oysters Crassostrea gigas during a 1-month experiment, including both an exposure and a depuration phase. The results showed that the digestive gland is the primary target organ. Recoverable modifications were observed at the lowest concentration. Limited necrosis was observed at the highest concentration and a longer exposure could have led to extensive and irreversible tissue lesions. Shell malformations (chambering) were observed during the depuration phase. Finally the authors suggest that safe TBT levels in mariculture waters should be lower than 2 ng/1.

Keywords

TributyltinCrassostrea gigashistopathological effectsTributylétainCrassostrea gigaseffets histopathologiques
Type
Research Article
Information
Aquatic Living Resources , Volume 3 , Issue 2 , April 1990 , pp. 121 - 130
Copyright
© IFREMER-Gauthier-Villars, 1990

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