Very low levels of waterborne butyltins modulate hemocyte function in the blue mussel Mytilus edulis
St-Jean, S.D.; Pelletier, É.; Courtenay, S.C. (2002). Very low levels of waterborne butyltins modulate hemocyte function in the blue mussel Mytilus edulis. Mar. Ecol. Prog. Ser. 236: 155-161. https://dx.doi.org/10.3354/meps236155
In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630; e-ISSN 1616-1599, more
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| Authors | | Top |
- St-Jean, S.D.
- Pelletier, É.
- Courtenay, S.C.
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| Abstract |
Hemocyte functions were used to determine the effect of very low concentrations (1, 3 and 6 ng Sn l-1) of tributyltin (TBT) and dibutyltin (DBT) on the internal defense of adult blue mussel Mytilus edulis under flow-through conditions over 11 d. Hemolymph was sampled without harming mussels on Days 0, 1, 4 and 11 for measures of hemocyte count (HC), lysosome retention (LR) and phagocytic activity (PA). HC was increased from Day 1 by TBT at 6 ng l-1 and by DBT at 3 and 6 ng l-1 on Day 11. LR was increased by both butyltins at concentrations as low as 1 ng l-1 from Day 4. PA was increased by DBT at 6 ng l-1 from Day 4. No difference was detected between the impacts of TBT and DBT on LR but TBT had a greater impact on HC and DBT had a greater impact on PA. These results support the hypothesis that both TBT and DBT can cause modulations of the internal defense system of mussels at concentrations as low as 1 ng Sn l-1 after only a few days of continuous exposure. |
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