STUDIES ON THE ESTABLISHMENT OF THE TESTI NG METHODS ON BIOCONCENTRATION OF HAZARDOUS CHEMICALS BY MARINE FISH SPECIES .1. APPLICABILITY OFMARINE FISH SPECIES AS AN EXPERIMENTAL ANIMAL FOR A TESTING METHOD ONBIOCONCENTRATION OF HAZARDOUS CHEMICALS

Applicability of the following marine fish species (Sillago japonica, Rudarius ercodes, and Pagrus major) in habitating the Japanese coastal waters as an experimental animal on the bioconcentration of hazardous chemicals has been examined by comparing the bioconcentration of TBTO , TPTC, TBP, HCB, alpha-HCH, and Co in these fish. These species of fi sh bioconcentrated these chemicals differently depending on the uptake and elimination rates. The bioconcentration factors of the chemicals in S. japonica were similar to those in P. major. The bioconcentration factors in R. ercodes were slightly different from those in S. japoni ca and P. major. A large amount of Co was bioconcentrated in R. ercode s. On the other hand, organic chemicals such as TBTO, TPTC, and TBP we re not significantly bioconcentrated in R. ercodes. Our results based on the characteristics of bioconcentration suggest that S. japonica an d P. major were suitable for the experimental species of fish.