Haematotoxicity of Phorate, an Organophosphorous pesticide on a Freshwater Fish, Channa punctatus (Bloch)

Abstract

The present investigation has been designed to study the effect of sublethal concentrations of phorate, on the haematological parametes of Channa punctatus (Bloch) after exposure to 15 days. The present study shows the alternation in haematological parameter such as significant decrease in RBC counts, Hb %, thrombocytes, PCV %, MCHC, MCH, MCV, monocytes%, eosinophil% and basophil% and where as significant increase in WBC count, ESR, lymphocytes% and neutrophil% in photate exposed fish. The response of the fish towards toxicity of phorate was grossly dependent on concentration and duration of exposure. Thus, this paper gives an overview of the manipulation of fish, Channa punctatus as a biomarker of organophosphates pesticides through alternation in haematological parameters.