The production of cadmium-binding protein in three species of freshwater fish

Cadmium-binding protein (Cd-BP) was detected in the liver and kidney of stoneloach, Noemacheilus barbatulus, roach, Rutilus rutilus and rainbow trout, Salmo gairdneri which had been dosed i.p. with 1 mg cadmium (Cd)/kg body weight 168 h previously. The cadmium content (microgram Cd/g wet weight tissue) was much lower in the liver and kidney of trout than in stoneloach and roach, but there was no clear relationship between the amount of Cd-BP detected and the reported sensitivity of each species to cadmium.