RT journal article T1 Biochemical effects and polycyclic aromatic hydrocarbons (PAHs) in Senegal sole (Solea senegalensis) from a Huelva estuary (SW Spain). A1 Oliva Ramírez, Milagrosa A1 González De Canales-García, María Luisa A1 Gravato, Carlos A1 Guilhermino, Lucía A1 Perales Vargas-Machuca, José Antonio A2 Tecnologías del Medio Ambiente K1 Stress oxidative K1 Biomarkers K1 PAH’s K1 Sole K1 Estuary AB Relations between several stress oxidative biomarkers and aromatic polycyclic hydrocarbon (PAH) concentrations have been studied in wild sole, Solea senegalensis collected in the vicinity of a petrochemical industry. Antioxidant enzyme activities in eco-toxicological studies constitute excellent markers for exposure to a large variety of pollutants. The 16 PAHs in sediment as well as oxidative damage (LPO), activity of catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST), glutathione reductase (GR) and PAHs type metabolites in sole liver were analysed. Significant correlations (p<0.05) were established between some biomarkers as GST, GPx and CAT and PAHs metabolites in liver (naphthalene, pyrene and phenanthrene) and PAHs concentrations in sediments (fluoranthene, acenaphthene, anthracene and chrysene). PAHs accumulated in the sediment and organisms are inducers of antioxidant defences. GST, GPx and CAT were robust biomarkers showing correlations with both PAHs in sediments and liver PAH metabolites showing different responses to low and high molecular weight PAHs. YR 2008 FD 2008 LK http://hdl.handle.net/10498/19663 UL http://hdl.handle.net/10498/19663 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 12-nov-2026