Some Heavy Metals in Fishes from the Andaman Sea

Abstract

Muscles, liver, gills and heart of several fishes and some zooplankton(whole sample) collected from the Andaman Sea were analysed for Cu, Mn, Zn, Fe, Ni and Co. The concentrations of practically all the metals were highest in the liver. The edible portion of the fish(muscles) had lower concentrations as compared to other tissues. Concentrations of each metal in various tissues of the same species had no correlation with the size of the fish. However, there was a positive correlation between the Cu concentrations in the liver of Tuna of different sizes.