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Ultrastructural Studies to Evaluate Fish Scales as Indicators of Heavy Metals in Labeo rohita: Scales as indicators of water quality

Indian Agricultural Research Journals

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Title Ultrastructural Studies to Evaluate Fish Scales as Indicators of Heavy Metals in Labeo rohita: Scales as indicators of water quality
 
Creator Vaid, Vibhu
Hundal, S S
Vashishat, Nisha
 
Subject Fish scales
Heavy metals
Labeo rohita
SEM-EDS
Water quality indicator
 
Description Environmental pollution by heavy metals has been of nagging concern globally. A preliminary study was undertaken to study structural alterations including lepidontal aberrations on the fish scales of Labeo rohita using Scanning Electron Microscopy (SEM). In addition, the atomic percentage of heavy metals on the scales were analysed by Energy Dispersive X-ray microanalysis (EDX). The scales were gathered during two seasons (winter and summer) from Ludhiana's fish markets. Various heavy metals including Aluminium (Al), Chromium (Cr), Zinc (Zn), Nickel (Ni), Copper (Cu), Lead (Pb) and mercury (Hg) were detected on fish scales gathered from local fish markets compared to control groups. In addition, Silicon (Si) was also found on the scales gathered from markets. Heavy metal accumulation in the water source from which fish were gathered might be responsible for deposition of heavy metals on scale’s surface. Along with this, lepidontal anomalies on the scale’s dorsal surface were examined using EDX. In addition, structural aberrations such as broken, disorganized and eroded circuli, damaged margins of scales, alterations in focus and tubercles were also studied. The intensity of alterations was observed higher in scales of fish larger in size gathered from market compared to fish smaller in size, which might be due to longer duration of heavy metal exposure in the water source. The results clearly suggested that fish scales of L. rohita have a potential to be used as indicators of water quality.
 
Publisher Indian Society of Soil Salinity and Water Quality, Karnal (Haryana)
 
Date 2024-07-29
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/JoSSWQ/article/view/148991
10.56093/JSSWQ.v16i1.148991
 
Source Journal of Soil Salinity and Water Quality; Vol. 16 No. 1 (2024): JSSWQ; 118-125
0976-0806
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/JoSSWQ/article/view/148991/55228
 
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