Fish Assemblage Including Threatened Species in Hakaluki Haor, Sylhet, Bangladesh

By : Mohammed Mahbub Iqbal , Shamima Nasren , Md. Abdullah-Almamun , Mohammad Mosarof Hossain

Page No: 233-246

Abstract
Hakaluki haor is the largest haor in Bangladesh and enrich in fish assemblage where this study has been conducted from January to December 2013. The occurrences of 83 species of fishes in the haor have been recorded belonging to 55 genera, 28 families and 10 orders. Forty one threatened fish species for Bangladesh were recorded from the study area. This study disclosed the fish species and their composition along with diversity, richness evenness and dominance in[1]dices. Cypriniformes was found to the most dominant order comprising 73% followed by siluriformes (13%) and perciformes (9%). Among the found fishes, 49.40% species were considered threatened in Bangladesh, which include 14.46% vulnerable, 21.69% endangered and 13.25% critically endangered species. Overall values of Shannon-Weaver diversity (H), richness (D), Evenness (e) and Dominance indices were found to be 2.53, 5.94, 0.66 and 0.081, respectively. In order to conserve available fish species, both threatened and non-threatened species, establish[1]ment of fish sanctuary is suggested.

Authors :
Dr. Mohammed Mahbub Iqbal and Shamimanasren
Department of Fish Biology and Genetics, Sylhet Agricultural University, Sylhet, Bangladesh.

Md. Abdullah-Almamun
Department of Fish Health Management, Sylhet Agricultural University, Sylhet, Bangladesh.

Mohammad Mosarof Hossain
Department of Coastal and Marine Fisheries, Sylhet Agricultural University, Sylhet, Bangladesh