Study of Fish Diversity of Karanji Lake, District Yavatmal, (M.S.) India
Author : Wanjari AJ
Abstract :
The current study was carried out to find the diversity and abundance of fishes in the selected sites of Karanji Lake in Maharashtra for a period of 1 year that is from June 2021 to July 2022. Fishes belongs to 5 orders and 8 families were collected during the course of study period. Total 21 species of different 18 genera were recorded from the Karanji Lake. The order Cypriniformes were dominated by 9 species followed by Osteoglossiformes 5 species, Siluriformes and Synbranchiformes with 3 species each, Perciformes 2 species and Beloniformes with only one species. Family Cyprinidae was dominant group with 9species in the assemblage composition in which Catla catla, Labeo rohia, Cirrhinus mrigala and Puntis Ticto were found most abundant. Highest number of species were observed on site 4 followed by site 2. For the measurement of diversity a total of two diversity indexes were used Shannon and Simpson index. Shannon index showed the similar trend and ranged from 2.27 to 3.48 and Simpson index ranged from 0.01 to 0.02. The present data was compared to the previously published data and it showed that the overall diversity is still conserved but there is massive decrease in the number of particular species. Therefore proper scientific management of the aquatic resource, implementation of laws for illegal fishing, further study regarding the activities effecting the diversity and implementation of new methods and protocols for their sustainable conservation is at urgent need.
Keywords :
Diversity, abundance, fishes, Karanji Lake
