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Volume 41 - Number 2 - 2006

Heavy metals in marine organisms from the coastal zone of Continental Argentine Patagonia

Mónica N. Gil1, Américo Torres1, Miguel Harvey2 y José Luis Esteves1 

1 Centro Nacional Patagónico (CENPAT - CONICET). Boulevard Brown 3000. (9120) Puerto Madryn. Chubut. Argentina
2 Universidad Nacional de la Patagonia San Juan Bosco. J. A. Roca 117 P1 (9100) Trelew. Chubut. Argentina



Hg, Cd, Pb, Cu and Zn were analyzed in mollusks, crustaceans (soft tissue - µg/g dry weight), seabirds and marine mammals (kidney, liver and muscle - µg/g wet weight), from Patagonian coast of Argentina. Levels of Hg were undetected or very low. Higher than allowable Cd levels for human consumption were recorded in some mollusks (up to 6.75 µg/g), even though its origin would be mainly natural. Pb concentrations in crustaceans from San Antonio bay (10.00 – 13.20 µg/g) were related to an old mining activity. Contents of Cu and Zn were in most cases within the ranges reported in the literature.


Key words: trace elements, mollusks, crustaceans, seabirds, marine mammals




1Laboratorio de Zooplancton, Instituto de Ciencias del Mar y Limnología,Universidad Nacional Autónoma de México. A. P. 70-305, 04510 México, D. F. México
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