Mercury, cadmium and lead in different tissues of fishes and in zooplankton from the Andaman Sea

60-63Several fishes, representing different trophic levels, and some zooplankton samples were analysed for Hg, Cd and Pb. There is a wide variation in the concentrations of these elements. Hg is quite low in practically all the tissues. Cd and Pb show increased levels in some tissues. Of particular importance are the elevated Cd levels in liver of almost all fishes which show a positive correlation with the size of the fish