Author(s): Shabir Hussain Dar, Dr. Beena Joshi Bhat, Raja Zeeshan Pervaiz and Mehwish Nawaz

Abstract: Metal pollution is a global problem growing at an alarming rate and aquatic organisms are continuously exposed to elevated levels of metals seriously threatening the whole ecosystem. The present study was undertaken to assess bioaccumulation of cadmium in the fish, Clarias batrachus (Linn.) and to address its correlative impacts. Heavy metal salt viz. cadmium chloride of analytical reagent grade was used to conduct the toxicological experiments. Experimental fishes of both genders were divided into four groups. Each group was kept in concrete tank containing 30L of water separately, at a density of 20 fish / tank in replicate. Group I was kept as control, group II, III, and IV were exposed to 0.05ppm, 0.5 ppm and 1ppm dose of CdCl₂ respectively. Calorimetric analysis was carried out by Lowry’s Method ^[19], while statistical analysis was carried out by using ANOVA. As a result, we found that CdCl₂ halts the metabolism in fishes exposed to different concentration of CdCl₂. It was observed that the control sample has 69.26 µg of protein per ml. The protein content was high in controlled fish and diminishes in order of increasing ppm of CdCl₂. From the current study, it was concluded that the controlled fish was having highest protein than the experimental fish, which were exposed to Cadmium chloride at different concentrations. So, the Cadmium chloride affects the overall protein metabolism because the toxic effects of cadmium chloride on muscle protein resulted in decrease in protein levels, which can provide insight of biochemical analysis in future perspectives.

Pages: 102-109  |  548 Views  132 Downloads

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