European Journal of Experimental Biology Open Access

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Assessment of heavy metals bioaccumulation in alien fish species, Cyprinus carpio from the Gomti river, India

Ashish Tiwari and Amitabh Chandra Dwivedi

The paper deals the assessment of bioaccumulation of four heavy metals (Cu, Cr, Pb and Zn) in Cyprinus carpio fish species and water from the Gomti river at Lucknow, India during 2011-2012. The heavy metals (Cu, Cr, Pb and Zn) were assayed using Atomic Absorption Spectrophotometer and the results were given as μg/g dry weight. The data obtain after water analysis reflected that the order of occurrence of heavy metals to be Zn > Pb > Cr > Cu > Cd. The analysis of heavy metals in muscle of C. carpio was measured in order of Zn > Cr > Pb> Cu, in case of gill Pb >Cr> Zn > Cu and in case of liver Pb > Cr > Cu > Zn. The bioaccumulation factor of the heavy metals was computed as in muscle Cu (24.5), Cr (35), Pb (22), Zn (20.66), in gill Cu (34), Cr (41.66), Pb (89.33) and Zn (9.25), whereas in case of liver Cu (34.5), Cr (338.33), Pb (36.8), Zn (28.16). The presence of heavy metal in our environment has been of great concern because of their toxicity when their concentrations are more than the permissible level.