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Histopathological changes in the suprabranchial chamber of fresh water fish Channa gachua exposed to a fungicide sedaxane

Shweta Pallavi*
P.G. Department of Zoology, Babasaheb Bhimrao Ambedkar Bihar University, Muzaffarpur, Bihar, India
Received : 11th July, 2017 ; Revised : 1st August, 2017

Abstract: The present investigation is conducted to assess histopathological alternations caused in suprabranchial chamber of an air breathing teleost Channa gachua (Bloch) after exposure of sedaxane (sublethal concentration of sedaxane for 96 hours is 0.045 ppm). Light microscopic studies showed many alternations in the suprabranchial chamber of fish. These alternations are observed as pathological biomarkers indicating the load of pollution of toxic stress. The effect of sedaxane can be observed in the form of hyperplasia of mucous cells found in the epithelial lining of SBC. The higher degree of wear and tear caused sloughing off of epithelial cells and thus the non-tissue space is formed in the respiratory epithelium. Breakdown of vascular papalliae caused disintegration of vascular system. The blood capillaries of SBC also bulged out extensively. These observations are thus indicative of the toxic affect caused by sedaxane at histopathological level in suprabranchial chamber of Channa gachua (Bloch).

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