Journal of Environment and Sociobiology

Garima Harit ¹, Neera Srivastava ¹

Affiliations
1 Department of Zoology, Centre for Advanced Studies, University of Rajasthan, Jaipur-302 004, IN

Abstract

Present study has been undertaken to investigate alterations in some haematological parameters along with endosulfan accumulation in blood of Channa punctatus after sub-chronic exposure to endosulfan. A statistically significant decline is observed in RBC, Hct, Hb and MCHC content in all the treated groups, reflecting an anaemic condition of the fish. Results indicate significant elevation in WBC, MCV, MCH, blood glucose and endosulfan content in blood, indicating a stress condition. Post exposure recovery was noted on depuration for another fortnight. Mild recovery was noted in haematological parameters and blood glucose along with slow elimination of endosulfan.

Keywords

Accumulation, Haematology, Channa punctatus, Endosulfan, Recovery.

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Garima Harit ¹, Neera Srivastava ¹

Affiliations
1 Department of Zoology, Centre for Advanced Studies, University of Rajasthan, Jaipur-302 004, IN

Abstract

After exposure of Channa punctatus to sub-lethal concentrations of endosulfan for 120 hrs, residues of endosulfan were estimated quantitatively in muscle, gills and blood. Maximum accumulation of endosulfan was observed in the gills. Treated fishes were subsequently transferred to endosulfan free freshwater for another 120 hrs in order to study the recovery response of these fishes. During recovery phase, slow and steady elimination of endosulfan residue was observed in both treated groups, showing non-significant removal in muscle and highly significant removal in gills and blood. Results reveal that muscle, gills and blood of C. punctatus have the ability to bioaccumulate endosulfan even at low concentrations and short exposure. This may in turn lead to various degenerative processes which will influence physiology and nutritive value of the fish.

Keywords

Bioaccumulation, Endosulfan, Recovery, Channa punctatus.

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