PCB MUSCLE CONTENT AND LIVER EROD ACTIVITY IN THE EUROPEAN EEL ( ANGUILLA ANGUILLA ) TREATED WITH AROCLOR 1254

Author： MARIOTTINI M. CORSI I. BONACCI S. FOCARDI S. REGOLI F.

ISSN： 0275-7540

Source： Chemistry and Ecology, Vol.19, Iss.2-3, 2003-04, pp. : 91-98

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Abstract

The European eel (ANGUILLA ANGUILLA) is a euryaline fish suitable for investigating exposure, accumulation patterns and biological effects of lipophilic pollutants such as polychlorinated biphenyls (PCBs). Eels were collected from the Orbetello Lagoon (Tyrrhenian coast of Italy) and injected with increasing doses of Aroclor 1254 to better characterise EROD activity as biomarker in eels from Mediterranean brackish environments. Fish muscle was analysed for PCB content and EROD activity was measured in liver microsomial fraction. Significant differences of PCB levels were observed in exposed fish (p < 0.05) while="" erod="" activity="" increased="" significantly="" reaching="" the="" highest="" values="" at="" the="" maximum="" dose="" of="" 50 mg/kg="">p < 0.001). highly="" positive="" correlation="">r = 0.82; p < 0.01) was="" found="" between="" pcb="" content="" and="" erod="" activity.="" isomer="" profiles="" showed="" decreases="" in="" hexa-cbs.="" the="" european="" eel="" is="" confirmed="" to="" be="" a="" useful="" sentinel="" species="" for="" assessing="" pollution="" in="" brackish="" environments="" whereas="" erod="" activity="" is="" characterised="" as="" a="" sensitive="" biomarker="" of="" exposure="" for="" pcb="" mixtures.="">