Author(s)

J. Albaiges, C. Porte, D. Pastor, X. Biosca & M. Sole

Abstract

The spatial distribution and temporal evolution of petrogenic and pyrolytic hydrocarbons in the Galicia coast (NW Spain), following the Aegean Sea oil spill, were investigated through a detailed study of hydrocarbon (fossil) markers in surface sediments and bivalves (mussels and clams). Sublethal responses in mussels were also assessed by the determination of several biomarkers such as the cytochrome P450 system, antioxidant enzymes and lipid peroxidation. Triterpane and sterane distributions were useful in tracing, respectively, the oil source and weathering (degradation) along the survey period (3, 6, 9, 12 and 34 months after the accident). Within the aromatic fraction, aromatized steranes were also us

Keywords