Heavy metals bioaccumulation in muscle tissues of Catla catla, Labeo rohita and Cirrhinus mrigala exposed to Chakbandi drain water concentrations in glass aquaria
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2017, Vol 11, Issue 6
Abstract
This project was planned to study the heavy metals bioaccumulation in muscle tissues of Catla catla, Labeo rohita and Cirrhinus mrigala exposed to Chakbandi drain water concentrations in glass aquaria. In this study, Chakbandi drain’s composite water were collected from the selected sites in the month of April, May and June, 2016 and applied to fingerling’s of three fish species i.e. Catla catla, Labeo rohita and Cirrhinus mrigala under laboratory conditions in glass aquaria. After determining the LC50, the sub-lethal dilutions i.e. 20%, 25%, 30%, 35% and 40% of drain water were tested for three month’s acute toxicity trial. After three months, muscle tissues of all the three fish species were taken by dissecting the control and experimental fishes for heavy metals bioaccumulation studies. Bioaccumulation of Cu, Cr, Mn, Ni, Cd, Co, Sn, Hg, Zn and Pb was detected in all the drain water treated fish species. Among all the treated fish species Cirrhinus mrigala showed the maximum bioaccumulation of all the selective heavy metals as compared to Labeo rohita and Catla catla. Higher level of bioaccumulation of Mn, Cu and Pb was detected in the muscle tissues of Cirrhinus mrigala as compared to other treated fish species. Conclusively, bioaccumulation of heavy metals in fish species is reliable tool for the assessment of environmental pollution. The findings of this study are helpful as an early warning for environmental monitoring strategies and for the evaluation of eco-toxicological impacts of pollutions.
Authors and Affiliations
Muhammad Arshad Rana, Tayyaba Sultana, Salma Sultana, Bilal Hussain
Keywords
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