PCB levels in European eel (Anguilla anguilla) from two coastal lagoons of the Mediterranean |
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Authors: | M Mariottini I Corsi S Focardi |
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Institution: | (1) Department of Environmental Sciences “G. Sarfatti” University of Siena, Italy |
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Abstract: | Eels are exposed to pollutants due to their unusual life cycle and are vulnerable to contamination associated with sediment
due to their diet, feeding habits and territoriality. Since the 1980s, a decline in American and European eel populations
has been recorded. The causes of this decline still are unknown but pollution from domestic and industrial effluents is known
to be involved. Since little data is available on PCB contamination in eels from Italian waters, PCBs were measured in muscle
of Anguilla anguilla captured in 2001 in two brackish ecosystems of the Mediterranean: the lagoons of Orbetello and Santa Giusta (Italy). PCBs
were higher in samples from Orbetello lagoon than in those detected from Santa Giusta lagoon (P < 0.05). Congener and isomer analyses indicated Aroclor 1260 as a likely source of PCBs in the Orbetello and Santa Giusta
samples. Only the toxic equivalents (TEQs) of mono-ortho PCBs were calculated. |
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Keywords: | Anguilla anguilla biomonitoring Mediterranean lagoons PCBs risk assessment |
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