Comparative study of the patterns of bioaccumulation of essential (Cu, Zn) and non-essential (Cd, Pb) trace metals in various estuarine and coastal organisms

摘要: Abstract The patterns of accumulation essential and non-essential trace metals have been studied comparatively in worms, molluscs, crustaceans, fish exposed to short-term experimental contaminations low chronic a polluted environment. In contaminations, the concentrations X cadmium lead organisms depend mainly on their environmental level Y according power function = aXb. For copper - an metal this equation is also suitable describe bioaccumulation some species (Nereis diversicolor O.F. Muller, Scrobicularia plana (da Costa), Gammarus zaddachi Sexton) for large range overloads. As mussel Mytilus edulis L., accurate medium or high overloads only. All are able control zinc tissues but both best regulators more highly evolved forms including decapod crustaceans fish. situ support same conclusions. one crustacean it has shown that regulation mechanisms may be functional since early life stages. When duration exposure increases, mechanism is, however, disturbed by additional sea water.