Accumulation trends of petroleum hydrocarbons in commercial shellfish from the Galician coast (NW Spain) affected by the Prestige oil spill.
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Autor/esViñas, L. (Lucía); Franco-Hernández, M.Á. (María de los Ángeles); Soriano-Sanz, J.A. (José Antonio); González, J.J. (Juan José); Ortiz, L.; Bayona, J.M.; Albaigés, J.
Versión del editorhttps://www.sciencedirect.com/science/article/pii/S0045653508015051
Aliphatic and aromatic hydrocarbons were determined in three species of commercial shellfish, namely razor shells (Ensis arcuatus and Ensis siliqua), goose barnacle (Pollicipes cornucopia) and sea urchin (Paracentrotus lividus), living in different habitats and exhibiting different feeding behaviors. The samples were collected monthly, from January 2003 to October 2004, in three stations of the Galicia coast (NW Spain), following the Prestige oil spill, with the aim of assessing their response to the spill and, therefore, their suitability for monitoring purposes. The aliphatic fractions were mostly dominated by biogenic hydrocarbons, reflecting the diet composition of the organisms and their low metabolic capacity. The presence of oil was assessed by the determination of chemical markers. The analysis of the aromatic fractions revealed the occurrence of 3–6 ring parent and alkylated PAHs, consistent with a mixed petrogenic–pyrolytic origin, with the common feature of the predominance ...