Volume 70
Evaluation of the Content of Heavy Metals in Water, Sediment, and the Oyster Crassostrea virginia of Lagoon Mecoacán, Tabasco
Authors
Brito-Manzano,N.P;P.Vargas-Falcón;J.Miramontes-Flores;M.PereraGarcía;D.AldanaAranda Download PDF Open PDF in BrowserOther Information
Date: November, 2017
Pages: 347-348
Event: Proceedings of the Seventy Annual Gulf and Caribbean Fisheries Institute
City: Merida, Yucatan
Country: México
Abstract
Water, sediments and oysters (Crassostrea virginica) from the Mecoacán Lagoon were analysed in order to determine concentrations of cadmium, copper, zinc and lead. Lead was found in concentrations above permisible limits in water (8 times) and in high concentrations in sediment and oyster, such concentrations are considered a potential risk to living organisms in the channel as well as to humans. Accumulation factors decreased in the following order: Zn > Cu > Cd > Pb, and a high correlation between metal concentration in oyster and sediment was observed. Metal concentrations in water and sediments increased with decreasing distance from the coast of Sánchez Magallanes, Tabasco. This observation was not posible to realize in oysters, probably because some factors, such as age, size, sex and reproductive cycle were not taken into account.