Biodiversity and conservation status of fish fauna in lake Fateh Sagar Udaipur, Rajasthan (India)

The present study deals with the diversity and abundance of fresh water fishes in Fateh Sagar lake of Udaipur district, Rajasthan during 2017-18. The results of present investigation reveal the occurrence of 28 fish species belonging to 10 families and 19 genera. Among the collected species, family Cyprinidae was most dominant constituting 46.42% followed by family Bagridae and Channidae constituting 10.71% each, family Balitoridae and Siluridae constituting 7.14% each, family Notopteridae, Saccobranchidae, Centropomidae, Belonidae and Mastacembelidae were represented by 3.57% each of the total fish species. The fish diversity was 3.20659 by using Shannon-Weaver diversity index. The conservation status of these fishes was assessed according to IUCN criteria. The major threats faced by the freshwater fishes are mostly in the form of human interventions and aquatic pollution.