ABSTRACT

Trace metal concentrations (Fe, Ni, Zn, Cu, Pb, Cd and Cr) in the flesh, gill and livers of the two edible fishes, Etroplus suratensis and Arius arius collected from the Cochin backwaters were estimated. Metal accumulation in tissues of the two species is found to be varied with respect to their feeding habits. Irrespective of the species, metal accumulation was higher in the liver than gill or flesh. This may be primarily attributed to differences in the physiological role of each organ in fish to metal metabolism. Regardless of species and tissues, metal concentrations showed a maximum value for Fe and a minimum value for Cd. Keywords: Trace metal, bioaccumulation, Etroplus suratensis, Arius arius, Cochin backwaters
Publication date: 01/12/2021

https://ijbpas.com/pdf/2021/December/MS_IJBPAS_2021_5771.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.12.5771