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Assessment of habitat quality with relation to fish assemblages in an impacted river of the Ganges basin, Northern India

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Title Assessment of habitat quality with relation to fish assemblages in an impacted river of the Ganges basin, Northern India
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Creator Braj Kishor Gupta
Uttam Kumar Sarkar
Sanjay Kumar Bhardwaj
 
Subject Habitat
Fish assemblage
PCA
Ganges basin
India
 
Description Not Available
In this work, we examined water-quality assessment in relation to fish assemblage of Gomti River, a large tributary of the Ganges River basin in northern India. Principal component analysis was performed for 18 environmental variables which produced three axes that cumulatively explained 60.23% of the environmental variation in sites. Fifteen variables (fine substrate fine gravel, coarse gravel, cobble, sand substrate water flow, conductivity, TDS, total hardness, temperature, dissolved oxygen, pH, and overhanging vegetation) had high loadings on at least one of the principal component axes interpreted. The canonical correspondence analysis was used to establish the relationship between important fish species and environmental variables. Species were distributed within four groups with respect to the significant habitat characteristics. The Pearson correlation coefficient was calculated between the water-quality parameters. We concluded that the level of species richness is mostly dependent on abiotic factors like temperature, dissolved oxygen, TDS, conductivity, depth, pH, and water current in the Gomti River, of the Ganges basin.
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Date 2017-07-19T06:46:32Z
2017-07-19T06:46:32Z
2012-03
 
Type Research Paper
 
Identifier Gupta, B.K., Sarkar, U.K. and Bhardwaj, S.K., 2012. Assessment of habitat quality with relation to fish assemblages in an impacted river of the Ganges basin, northern India. The Environmentalist, 32(1), pp.35-47.
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http://krishi.icar.gov.in/jspui/handle/123456789/4785
 
Language English
 
Relation Not Available;
 
Publisher SPRINGER LINK