Biochemical responses of Mytilus galloprovincialis as biomarkers of acute environmental pollution caused by the Don Pedro oil spill (Eivissa Island, Spain)
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AuthorsSureda, A. (Antoni); Box, A. (Antonio); Tejada, S. (Silvia); Blanco, A. (Andreu); Caixach, J. (Josep); Deudero, S. (Salud)
In the present work, the potential use of several antioxidant and detoxification biomarkers in the digestive gland of wild mussels (Mytilus galloprovincialis) for biomonitoring the marine pollution induced by the Don Pedro oil spill has been investigated. Two locations from the East to South-East of Eivissa (Ibiza) and Formentera islands were selected, one extensively affected by the oil spill and the other one not affected and considered as the control area. Mussels were sampled one, two and six months after the Don Pedro accident. Polycyclic aromatic hydrocarbon (PAH) levels were significantly increased in the soft tissues of mussels in the affected area one month after the disaster, returning to normal values after six months. Markers of oxidative damage in lipids – malondialdehyde, and in proteins – carbonyl derivates, and antioxidant enzyme – catalase, superoxide dismutase and glutathione peroxidase, activities significantly increased as result of the spill oil after one month, ...