The Biological Effects of the Marine Dumping on Mollusks

The mesocosm technique was applied in studying of biological effects of suspend solid caused by dumping on mollusks. The results showed the high content of suspend solid will do harm to the construction mollusks. The mollusks show great capacity of accumulating of metal, and Pb is the preferred target. Argopecten irradirradians accumulated mainly Zn, Cu and Cd, Crassostrea virginica Cd, Cu and Zn, and Ruditapes philippinarum Zn, Cu and Cd, respectively. Marine dumping was positively correlated to the content of heavy metal in mollusks.