PCB contamination in the oyster Crassostrea angulata: effects on lipids and adenylic energetic charge

Oysters (Crassostrea angulata) were fed daily with PCB-contaminated algae, sampled for up to 60 d and the soft tissues analysed for lipids, PCB and adenylic nucleotides. PCB contamination exhibited a plateau of 300 ng per g dry weight between days 5 and 30 then developed a broad peak whose maximum w...

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Bibliographic Details
Published in:The Science of the total environment 1993-01, Vol.Supplement, p.599-605
Main Authors: Madureira, MJ, Picado, A M, Ferreira, A M, Mendonca, E, Le Gal, Y, Vale, C
Format: Article
Language:English
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Summary:Oysters (Crassostrea angulata) were fed daily with PCB-contaminated algae, sampled for up to 60 d and the soft tissues analysed for lipids, PCB and adenylic nucleotides. PCB contamination exhibited a plateau of 300 ng per g dry weight between days 5 and 30 then developed a broad peak whose maximum was 1700 ng PCB per g dry weight. Triglycerides fell from 2.7 to 0.2 per cent in the first 30 d. The adenylate energy charge was calculated from the concentrations of adenosine mono-, di- and tri-phosphates: it varied between 0.62 and 0.34, moving in parallel with the triglyceride reduction. The results reflected the behaviour of oysters under toxic stress.
ISSN:0048-9697