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Hepatic Toxicity in Etroplus suratensis (Bloch 1790): An Economically Important Edible Fish in Vembanad Fresh Water Lake, Kerala, India

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Abstract

Fish consumption from contaminated water-bodies is a serious health issue. This study conducted to reveal the presence of heavy metals and bisphenols in Vembanad lake, an exploiting tourist spot in Kerala, receiving untreated agricultural, domestic, municipal, and industrial effluents. We evaluated aquatic contaminant impact on hepatic stress markers in Etroplus suratensis from fragile Vembanad lake. The significant difference in water physiochemical parameters, the concentration of heavy metals, and bisphenols (BPA and BPS) were studied. Hepatic tissue of E. suratensis inhabited in lake featured with high iron (11.29 ± 0.39 ppm) and BPA (0.02412 ± 0.0031 µg/mL) content along with an increased hepatic stress marker and distorted hepatic structure. The study highlights the presence of high iron and BPA in edible fish. The study recommends monitoring of physiochemical characters of freshwater lakes is essential for better survival of freshwater flora and fauna.

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Fig. 1

Source: Google map). a Kumarakom, Vembanad Lake, Kottayam, Kerala, India. The sampling area covered a total distance of 13.06 km from Vechoor to Puthuchara of Kumarakom. b J S farm, Neendoor, Kottayam, Kerala, India

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Acknowledgements

This work was financially supported by the Department of Science and Technology, New Delhi. We thank the Department of Biotechnology, Government of India for the excellent research facilities supported through the DBT-MSUB-IPLS (BUILDER) program. We also thank Mr. Dineep Vasudevan, Inter-University Instrumentation Centre, School of Environmental Sciences, Mahatma Gandhi University for technical assistance on this work.

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Correspondence to Raveendran Harikumaran Nair.

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Pettamanna, A., Raghav, D. & Nair, R.H. Hepatic Toxicity in Etroplus suratensis (Bloch 1790): An Economically Important Edible Fish in Vembanad Fresh Water Lake, Kerala, India. Bull Environ Contam Toxicol 105, 565–571 (2020). https://doi.org/10.1007/s00128-020-02987-7

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  • DOI: https://doi.org/10.1007/s00128-020-02987-7

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