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Discussion papers | Copyright
© Author(s) 2017. This work is distributed under
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Peer-reviewed comment 01 Nov 2017

Peer-reviewed comment | 01 Nov 2017

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This discussion paper is a preprint. A revision of the manuscript is under review for the journal Earth System Science Data (ESSD).

Freshwater fish fauna of rivers in the southern Western Ghats, India

Anbu Aravazhi Arunkumar1 and Arunachalam Manimekalan2 Anbu Aravazhi Arunkumar and Arunachalam Manimekalan
  • 1Department of Biotechnology, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
  • 2Department of Environmental Sciences, Biodiversity and DNA Barcoding Lab, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India

Abstract. We studied the freshwater fish fauna of Rivers of Southern Western Ghats for a period of three years from 2010 to 2013. We recorded 64 species belonging to 6 orders, 14 families and 31 genera. Alteration in the micro and macro habitats in the system severely affects the aquatic life especially fishes and also complicates the fish taxonomy. In the present study a total of 31 sites of six river systems of Southern Western Ghats were studied in which a total of 64 species belonging to 6 orders, 14 families and 31 genera were recorded. Among the 64 species Cyprinidae was the dominant family with 3 family 18 genus and 49 species (76.6%) compared to other order and families, further the data analyses suggested that species belonging to the order Cypriniformes were found to be the dominant species in the locations considered in the present survey. Interestingly, among the 31 sites Thunakadavu stream, Gulithuraipatti, Athirappalli, Naduthotam, Nadathittu, Mullaithodu, Thonanthikla, Noolpuzha and Sinnaru exhibited high variations in species abundance and as well species richness. Fifteen out of the 64 fish species endangered to the Western Ghats. Garra periyarensis and Cirrhinus cirrhosus are known to be vulnerable and Hemibagrus punctatus is Critically Endangered because of various anthropogenic activities. The significances of the study and timely measures needed to protect the species have also been concisely discussed.

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Anbu Aravazhi Arunkumar and Arunachalam Manimekalan
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Freshwater fauna and habitat characteristics of rivers in the Southern Western Ghats, India. A. A. Arunkumar and A. Manimekalan

Anbu Aravazhi Arunkumar and Arunachalam Manimekalan
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