Author(s):

Sadguru Prakash and Ashok Kumar Verma

Abstract: The present investigation has been designed to study the effect of sublethal concentrations of Chlorpyrifos, on the haematological parametes of Heteropnetues fossilis (Bloch) after exposure to 96 hours. The present study shows the alternation in haematological parameter such as significant decrease in RBC counts, Hb %, thrombocytes, monocytes %, eosinophils % and basophils % where as significant increase in WBC count, Lymphocytes % and NeutrophilS % in chlorpyrifos exposed fish. The response of the fish towards toxicity of chlorpyrifos was grossly dependent on concentration and length of exposure. Thus, this paper gives an overview of the manipulation of fish, Heteropnetues fossilis as a biomarker of pesticides through alternation in haematological parameters.

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