||Munschy Catherine1, Moisan Karine1, Tixier Celine1, Olivier Nathalie1, Gastineau Olivier2, Le Bayon Nicolas2, Buchet Vincent2
||1 : Inst Francais Rech Exploitat Mer IFREMER, Lab Biogeochem Organ Contaminants, F-44311 Nantes 3, France.
2 : Inst Francais Rech Exploitat Mer IFREMER, Lab Adaptat Reprod & Nutr Marine Fish, F-29280 Plouzane, France.
||Environmental Pollution (0269-7491) (Elsevier Sci Ltd), 2011-01 , Vol. 159 , N. 1 , P. 229-237
|WOS© Times Cited
||Marine flatfish, PBDEs, Bioaccumulation, Biotransformation, Debromination
||The uptake and elimination of six PBDE congeners (BDE-28, -47, -99, -100, -153, -209) were studied in juvenile common sole (Solea solea L) exposed to spiked contaminated food over a three-month period, then depurated over a five-month period. The results show that all of the studied PBDEs accumulate in fish tissues, including the higher brominated congener BDE-209. Several additional PBDE congeners were identified in the tissues of exposed fish, revealing PBDE transformation, mainly via debromination. The identified congeners originating from PBDE debromination include BDE-49 and BDE-202 and a series of unidentified tetra-, penta-, and hepta- BDEs. Contaminant assimilation efficiencies (AEs) were related to their hydrophobicity (log K-ow) and influenced by PBDE biotransformation. Metabolism via debromination appears to be a major degradation route of PBDEs in juvenile sole in comparison to biotransformation into hydroxylated metabolites. (C) 2010 Elsevier Ltd. All rights reserved.
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