Factors contributing to heavy metal accumulation in sediments and in the intertidal mussel Perna perna in the Gulf of Annaba (Algeria)

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• 作者：Bourhane-Eddine Belabed ; Xavier Laffray ; Amel Dhib ; Mouna Fertouna-Belakhal ; Souad Turki ; Lotfi Aleya
• 关键词：Mussels ; Perna perna ; Heavy metals ; Sediment ; Annaba Gulf ; Algeria
• 刊名：Marine Pollution Bulletin
• 出版年：2013
• 出版时间：15 September, 2013
• 年：2013
• 卷：74
• 期：1
• 页码：477-489
• 全文大小：1147 K

文摘

This paper presents the results of a seasonal survey of heavy metals accumulated in sediments and in the soft parts of the body of the mussel m>Perna pernam> at four stations in the Gulf of Annaba (Algeria). Pooled soft tissues from 10 mussels representing the entire range of sizes were digested in nitric acid. Statistical analysis reveals a significant seasonal effect on all the measured metals, the highest values being recorded in winter. With the exception of Cr, the levels for all metals were significantly higher in the east, at the outlet of the Seybouse River, than at all other monitoring stations. The study also shows that north-western waters are subject to a significantly lower degree of heavy metal pollution than elsewhere in the gulf. Levels were nevertheless within the limits of public health standards.

The results confirm the usefulness of m>P. pernam> as a bioindicator for heavy metal pollution.