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Microcosm tributyltin bioaccumulation and multibiomarker assessment in the blue mussel Mytilus edulis
Author(s) -
Devier MarieHélène,
Augagneur Sylvie,
Budzinski Hélène,
Mora Pascal,
Narbonne JeanFranclois,
Garrigues Philippe
Publication year - 2003
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1897/02-413
Subject(s) - mytilus , bioaccumulation , tributyltin , blue mussel , mussel , tbars , bioconcentration , catalase , environmental chemistry , microcosm , bivalvia , biology , gill , ecotoxicology , chemistry , mollusca , lipid peroxidation , ecology , fishery , biochemistry , antioxidant , fish <actinopterygii>
Blue mussels, Mytilus edulis , were exposed to two different concentrations of tributyltin (TBT) in seawater, 1,000 ng Sn/L (C1 experiment) and 10 ng Sn/L (C2 experiment), for 4 d, in order to evaluate the bioaccumulation of TBT by mussels Mytilus edulis in microcosms and to test the ability of a multimarkers analysis to determine the effects of TBT on the biochemical parameters in mussels. Tissue burdens of Mytilus edulis were 204 ± 7 and 2,120 ± 4 ng Sn/g TBT after the 4‐d tests for the C2 and C1 experiments, respectively. Analyses of dissected organs and/or tissues demonstrated that TBT accumulated to the greatest extent in gills in the C1 experiment and in the digestive gland in the C2 experiment. Bioconcentration factors (BCFs) were 12,100 ± 300 and 2,000 ± 10 for mussels exposed in the C2 and C1 experiments, respectively. The four biomarkers used in this work were acetylcholinesterase (AChE), glutathione S‐transferase (GST), catalase (CAT) activities, and thiobarbituric acid‐reactive substances (TBARS) contents. No significant changes were observed in the measured enzyme activities or in TBARS concentration after the 4‐d TBT exposure.