Author(s): Sabina Sultana, Fahmida Akhter and Sahadat Hossain

Abstract: The aim of this present investigation was to assess morphological and behavioural changes and to evaluate the histological changes of liver, stomach and intestine of Channa punctatus (BLOCH) at different concentration of acid dye. The study was conducted during the period November, 2016 to August, 2017 at Fisheries Research Laboratory, Department of Zoology, University of Rajshahi, Bangladesh. 40%, 60% and 80% mortality were recorded at 0.07, 0.09 and 0.2ml/L concentration of acid dye. Histopathological changes were observed in liver, stomach and intestine of the treated fish compared to control fish. The experimental fish showed- dilation of sinusoid, enlarged central vein, vacuolization of hepatocyte, hemorrhage and necrosis in liver; degeneration in the layer, acute depletion of epithelium, necrosis and hemorrhage in stomach; complete destruction of villi, mass depletion of epithelium, and the rapture in the layer in intestine. The study revealed toxic effects of acid dye on C. punctatus.

Pages: 220-225  |  718 Views  176 Downloads

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