BIOACCUMULATION OF TOXIC ORGANIC COMPOLUNDS AND THEIR ISOMERS INTO THE ORGANISM OF SEALS IN WEST-ESTONIAN ARCHIPELAGO BIOSPHERE RESERVE

摘要

The Estonian coastal waters serve as the south-eastern boundary of the regular distribution of the grey (Halichoerus grypus and ringed Phoca hispida) seal in the Baltic Sea. During the annual molt period in My-June (in the Estonian coastal waters), the stock size is estimated to be 1200-1500 grey seal individuals - that is, roughly 25/100 of the whole Baltic population. If we compare the chlororganic contents of seals in different areas the Baltic Sea, we can see that the northern part of the Gulf of Riga and Vainameri Sea is the reference area of the Baltic Sea.