Immune effects of HFO on European sea bass, Dicentrarchus labrax

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• 作者：Anne Bado-Nilles ; Claire Quentel ; Michel Auffret ; Sté ; phane Le Floch ; Bé ; atrice Gagnaire ; Tristan Renault ; Hé ; lè ; ne Thomas-Guyon
• 关键词：Dicentrarchus labrax ; Crassostrea gigas ; Heavy fuel oil ; Immune parameters ; Complement activity ; Phenoloxidase activity ; Bioaccumulation
• 刊名：Ecotoxicology and Environmental Safety
• 出版年：2009
• 出版时间：July 2009
• 年：2009
• 卷：72
• 期：5
• 页码：1446-1454
• 全文大小：242 K

文摘

The European sea bass, Dicentrarchus labrax, and the Pacific oyster, Crassostrea gigas, were exposed to a soluble fraction of heavy fuel oil for 5 and 9 days, respectively. The organisms were then transferred to non-contaminated seawater for 1 month. The bioaccumulation and elimination of PAHs in contaminated tissues were dissimilar between species. In fish, acenaphthene and naphthalene were detected and naphthalene was still detectable 30 days after the beginning of the recovery period. In oysters, on the other hand, pyrene and phenanthrene were bioaccumulated and 14 days after exposure no more PAHs were detected. Concerning innate immune parameters, the increase of haemolytic activity of the alternative complement pathway in fish and the reduction of phenoloxidase activity in oysters endured, respectively, 1 and 2 weeks in contaminated organisms. This indicates that these two enzymatic cascades could be quite useful for monitoring pollution by oil.