Vol. 19 No. 2
Bioaccumulation of heavy metals in Pangasius hypopthalamus cultured in sewage treated water
Author(s): R. SHARMA, R. GULATI, P. SINGH AND R. KUMAR
Abstract: The current research was designed to scrutinize the bioaccumulation of heavy metal (Cu, Mn, Fe, Zn) content in different organs of Pangasius hypopthalamus cultured in sewage treated water. The levels of heavy metals varied significantly among fish muscle, stomach, gills, heart and brain tissue. The gills were the target organ for the manganese (3.377 mg kg-1), iron (8.46 mg kg-1) and zinc (1.276 mg kg-1) accumulation, whereas, maximum copper concentration was found in muscle (2.013 mg kg-1) followed by gills (0.296 mg kg-1). The bioaccumulation of heavy metals was maximum in gills succeeded by muscle, brain and heart. Least amount was bio-accumulated in stomach. The net accumulation of iron was maximum in organs followed by manganese, copper and zinc. Nickel and chromium were undetectable in sewage treated water. A remarkable variation in the deposition of elements in various organ of fish species was reported statistically (p =0.05).
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