Bioaccumulation and biochemical responses in mussels exposed to the water-accommodated fraction of the Prestige fuel oil

• Main Authors: Montserrat Solé, Astrid Buet, Laura Ortiz, Francesc Maynou, Josep Maria Bayona, Joan Albaigés
• Format: Article
• Language: English
• Published: Consejo Superior de Investigaciones Científicas 2007-06-01
• Series: Scientia Marina
• Subjects: prestige oil spill; mytilus galloprovincialis; tetraselmis sp.; water-accommodated fraction; biomarkers
• Online Access: http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/16

The activity of the antioxidant defences catalase (CAT, EC 1.11.1.6), glutathione peroxidase (t-GPX, EC 1.11.1.9), glutathione reductase (GR, EC 1.6.4.2), phase II glutathione S-transferase (GST, EC 2.5.1.18) along with the NADPH-dependent cytochrome c (CYP) reductase (EC 1.6.2.4), NADH-dependent cytochrome c reductase (EC 1.6.2.2), and NADH-dependent ferricyanide (b5) reductase (EC 1.18.1.1) was determined in the digestive gland of mussels Mytilus galloprovincialis fed with Tetraselmis sp. pre-exposed to the water accommodated fraction of the Prestige oil. Mussel gills were also used for measuring acetylcholinesterase activity (AChE, EC 3.1.1.7) and lipid peroxidation (LP) as an indication of neurotoxicity and oxidative stress damage respectively. Bioaccumulation of the selected polycyclic aromatic hydrocarbons (2 to 6 rings PAHs) in mussels after 2, 4, 7 and 10 days of exposure did not show any significant trend; the 2-3 ring PAHs were best represented (51%). A significant (p