Tissue-specific tendencies of bioaccumulation of PCB 169 in freshwater fish Rasbora daniconius

Chronic exposure of the freshwater fish Rasbora daniconius to a sub-lethal concentration of the Poly Chlorinated Biphenyl Congener No. 169 for a continued period of 30 days showed its bioaccumulation in the fish tissues. Collection of samples of some tissues, viz. the gills, kidney, intestine and liver, on every 5th day of exposure, has provided the data for a comparative study of the extent of bioaccumulation in them. Maximum bioaccumulation is seen in the gills, while the least in the liver of the fish.