BLOOD DYSCRASIA IN A TELEOST FISH, COLISA-FASCIATUS, ASSOCIATED WITH CADMIUM POISONING

Exposure of a freshwater teleost, Colisa fasciatus to a sub-lethal concentration (100 mg per 1) of cadmium, as cadmium sulphate induced lymphocytosis and anaemia, with simultaneous regeneration of red blood cells, at 90 h post treatment. The 96 h LC50 value, determined concurrently by static bioassay, for the metal was 126 mg per 1. The treatment also evoked thrombocytosis with concomitant hypercoagulability of whole-blood. These results are compared with heavy metal poisoning in this and in other fish, and with cadmiosis in man. © 1979.