Scales of freshwater fish Labeo rohita as bioindicators of water pollution in Tung Dhab Drain, Amritsar, Punjab, India

Journal of Toxicology and Environmental Health. Part a
Rajbir Kaur, Anish Dua

Abstract

This study examined the impact of municipal wastewater on scale morphology of freshwater fish Labeo rohita. Fish were exposed to sublethal concentrations (17.7, 26.6, or 35.4%) of municipal wastewater for durations of 15, 30, and 60 d. Recovery experiments were also performed for a duration of 60 d. Scales were extracted after respective exposure periods, cleaned, and processed for scanning electron microscopy. Results showed concentration- and exposure duration-dependent alterations in the morphology of scales. Severe damage was observed at the anterior and posterior portions of scales in the form of lepidontal breakage and uprooting, destructions at the base of circuli and radii along with complete structural loss in the focal region and adjacent circuli and radii, and alterations in structure of tubercles. Data indicate that scales of fish L. rohita may be employed as bioindicators of water pollution and could be incorporated into water monitoring surveillance.

References

May 1, 1994·Bulletin of Environmental Contamination and Toxicology·M S Johal, A Dua
Feb 21, 1998·Bulletin of Environmental Contamination and Toxicology·K K Rishi, M Jain
Sep 15, 2005·Bulletin of Environmental Contamination and Toxicology·A Dua, N Gupta
Mar 3, 2007·Environmental Monitoring and Assessment·D R KhannaR Bhutiani
Jun 28, 2011·Environmental Monitoring and Assessment·Rajbir Kaur, Anish Dua
Aug 3, 2012·Journal of Toxicology and Environmental Health. Part a·Roger Stacke FerreiraJuliano Zanette
Apr 24, 2014·Journal of Toxicology and Environmental Health. Part a·P GeraudieL Camus
Apr 24, 2014·Journal of Toxicology and Environmental Health. Part a·O A KarlsenA Goksøyr

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Citations

Dec 25, 2015·Journal of Toxicology and Environmental Health. Part a·Sabrina Vaz S SilvaBoscolli B Pereira
Oct 4, 2015·Environmental Science and Pollution Research International·Kirandeep KaurArvinder Kaur
Oct 28, 2015·Journal of Toxicology and Environmental Health. Part a·Edimar Olegário de Campos JúniorSandra Morelli
Jun 23, 2016·Environmental Science and Pollution Research International·Rajbir Kaur, Anish Dua
Jul 25, 2019·Journal of Toxicology and Environmental Health. Part a·Shweta Maheshwari, Anish Dua
Sep 19, 2019·Environmental Monitoring and Assessment·Vibhu Vaid, S S Hundal
Nov 7, 2016·Environmental Science and Pollution Research International·Tayyaba SultanaZ Ahmed
Apr 20, 2019·Environmental Science and Pollution Research International·Ramandeep KaurKirandeep Kaur

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Methods Mentioned

BETA
scanning electron microscopy

Software Mentioned

MINITAB

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