Freshwater fishes of Cauvery Wildlife Sanctuary, Western Ghats of Karnataka, India

Abstract

The ichthyofauna of Cauvery Wildlife Sanctuary is comprised of 58 species belonging to 18 families and 44 genera of which close to 25% are endemic to the Western Ghats region, and eight are endemic to the Cauvery River system namely, Dawkinsia arulius, Dawkinsia rubrotinctus, Hypselobarbus dubius, H. micropogon, Kantaka brevidorsalis, Labeo kontius, Tor remadevii and Hemibagrus punctatus. Eight species found in Cauvery Wildlife Sanctuary are threatened, including two (Tor remadevii and Hemibagrus punctatus) listed as ‘Critically Endangered’, four species (Dawkinsia arulius, Hypselobarbus dubius, H. micropogon, and Silonia childreni) as ‘Endangered’ and two (Hyporhamphus xanthopterus and Wallago attu) as ‘Vulnerable’ on the IUCN Red List.