Biomarkers - metabolism, Petroleum Pollution, Oxidative Stress, Glutathione Transferase - metabolism, Hemolymph - metabolism, Pectinidae - drug effects, Iceland, Water Quality, Water Pollutants, Chemical - metabolism, Animals, Water Pollutants, Chemical - toxicity, Pectinidae - enzymology, Metabolic Detoxication, Phase I, Lipid Peroxidation, Superoxide Dismu...