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Multiple biomarker responses of Nile tilapia (Oreochromis niloticus) exposed to textile industry effluents reaching Bolgoda North Lake, Sri Lanka

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dc.contributor.author Perera, B.I.G. en_US
dc.contributor.author Pathiratne, A. en_US
dc.date.accessioned 2014-11-19T04:53:13Z
dc.date.available 2014-11-19T04:53:13Z
dc.date.issued 2013
dc.identifier.citation Perera, B.I.G. and Pathiratne, A. (2010). Multiple biomarker responses of Nile tilapia (Oreochromis niloticus) exposed to textile industry effluents reaching Bolgoda North Lake, Sri Lanka, Sri Lanka Journal of Aquatic Sciences 15: 01-11.
dc.identifier.issn ISSN 1391-2038 en_US
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/4362
dc.identifier.uri http://www.slafar.lk/images/pdf/vol15/vol15.1-11.pdf
dc.description.abstract Textile industry effluents contain a complex mixture of chemicals which may have potential threats to biota. The present study was carried out to assess the potential impacts of selected textile industry effluents entering Bolgoda North Lake, Sri Lanka using multiple biomarkers responses of Nile tilapia viz. brain acetylcholinesterase (AChE), hepatic ethoxyresorufin O-deethylase (EROD) and erythrocytic micronuclei/nuclear alterations. The biomarker responses were determined in the fish upon exposure to the undiluted and diluted effluents along with the respective controls. Brain AChE activities of the fish exposed to the textile industry effluents were depressed (up to 40%) and frequencies of erythrocytic micronuclei and nuclear alterations were increased (up to 9 folds) significantly indicating the availability of neurotoxic and genotoxic substances in the effluents. Strong induction of hepatic EROD activities (up to 23 folds) in the exposed fish revealed the availability of CYP1A inducing pollutants which may have contributed to enhance the genotoxic potential of the effluents. The results revealed the sensitivity of these biomarkers of Nile tilapia to assess the biological effects of textile industry effluents. The depression of AChE activities and induction of EROD levels along with enhanced micronuclei and nuclear alterations in the fish exposed to the selected effluents can be considered as early warning signs for possible impacts pose by the textile industry effluents on fish populations inhabiting the effluent receiving water bodies. en_US
dc.publisher Sri Lanka Journal of Aquatic Sciences en_US
dc.subject Nile tilapia (Oreochromisniloticus); Biomarker; Lakes en_US
dc.subject Sri Lanka; Lake White Fish Fisheries; Textile industry en_US
dc.subject Sri Lanka; Toxicology en_US
dc.subject Sri Lanka en_US
dc.title Multiple biomarker responses of Nile tilapia (Oreochromis niloticus) exposed to textile industry effluents reaching Bolgoda North Lake, Sri Lanka
dc.type article en_US
dc.identifier.department Fisheries Biology and Aquaculture en_US


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