Metal concentrations in the grey mullet (Mugil cephalus) from Visakhapatnam

S.N. DeSousa, S.W.A. Naqvi


Concentrations of seven metals (zinc, manganese, iron, copper, nickel, cobalt and lead) have been determined in six different tissues of grey mullet (Mugil cephalus) caught in the waters of Visakhapatnam harbour (east coast of India). The concentrations of metals were high in the gills, eyes and liver and low in muscles. In most metals there was no direct relationship between the metal concentration in the tissues and the weight of the fish. High metal concentration found in the waters of harbour area appears to be responsible for a greater accumulation of these in the tissues


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