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Title

Biochemical responses of Mytilus galloprovincialis as biomarkers of acute environmental pollution caused by the Don Pedro oil spill (Eivissa Island, Spain)

AuthorsSureda, Antoni; Box Centeno, Antonio ; Tejada, Silvia; Blanco, Andreu ; Caixach Gamisans, Josep ; Deudero Company, María de la Salud
KeywordsBiomarkers
Mytilus galloprovincialis
Antioxidant enzymes
Detoxification
Oil spill
PAHs
Issue Date2011
PublisherElsevier
CitationAquatic Toxicology 101(3-4): 540-549 (2011)
AbstractIn 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, returning to basal values at two month sampling time. Glutathione/glutathione disulfide ratio (GSH/GSSG), as a marker of the redox status, was reduced after one and two months indicating a more oxidized situation. Markers of detoxification – glutathione-Stransferase and cytochrome P4501A activities and metallothionein gene expression – were significantly increased by the oil spill onemonthafter the accident, returning to the basal values attwomonthsampling time. In conclusion, the Don Pedro accident induced a transient situation of PAHs pollution resulting in enhanced antioxidant and detoxification defense systems in the wild mussel M. galloprovincialis returning to normal levels six months from the spill. The selected biomarkers are a useful tool for biomonitoring the response to acute exposure to pollutants in marine mussels.
Description10 páginas, 5 tablas, 4 figuras
Publisher version (URL)http://dx.doi.org/10.1016/j.aquatox.2010.12.011
URIhttp://hdl.handle.net/10261/54490
DOI10.1016/j.aquatox.2010.12.011
ISSN0166-445X
Appears in Collections:(IIM) Artículos
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