Ecotoxicological Assessment of Vlora Bay (Albania) by a Biomonitoring Study Using an Integrated Approach of Sublethal Toxicological Effects and Contaminant Levels in Bioindicator Species
2011
Abstract An integrated ecotoxicological study based on bioaccumulation and biomarker responses in sea urchin, mussel, and fish was conducted in Vlora Bay (Albania). Despite several past industrial activities and current increase of anthropogenic impact characterising Vlora Bay, no ecotoxicological data have been published so far, underlining the need to investigate the area and to validate the ecotoxicological approach. Heavy metals, polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OC), and polychlorinated biphenyls (PCBs) were measured in native sea urchin (Arbacia lixula), Mediterranean mussel (Mytilus galloprovincialis), and red mullet (Mullus barbatus). Several biomarkers such as expression of heat-shock proteins (HSP-70) in sea urchin (PCR), detoxification enzyme activities and apoptosis in mussels, and acetylcholinesterase (AChE) activity in mussels and red mullet were investigated. Overall, ecotoxicological data suggest an environmental quality of Vlora Bay resembling a marine pr...
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