alexa The Current Status of Small Indigenous Fish Species (SI
ISSN: 2332-2543

Journal of Biodiversity & Endangered Species
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Research Article

The Current Status of Small Indigenous Fish Species (SIS) of River Gorai, a Distributary of the River Ganges, Bangladesh

Hanif MA1*, Siddik MAB1, Nahar A1, Chaklader MR1, Rumpa RJ2, Alam MJ3 and Mahmud S4

1Department of Fisheries Biology and Genetics, Patuakhali Science and Technology University, Patuakhali-8602, Bangladesh

2Department of Aquaculture, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

3Department of Fisheries Management, Patuakhali Science and Technology University, Patuakhali-8602, Bangladesh

4Department of Aquaculture, Patuakhali Science and Technology University, Patuakhali-8602, Bangladesh

*Corresponding Author:
Abu Hanif Md
Department of Fisheries Biology and Genetics
Patuakhali Science and Technology University
Patuakhali-8602, Bangladesh
Tel: +91450965212
E-mail: [email protected]

Received date: April 30, 2016; Accepted date: June 08, 2016; Published date: June 15, 2016

Citation: Hanif MA, Siddik MAB, Nahar A, Chaklader MR, Rumpa RJ et al. (2016) The Current Status of Small Indigenous Fish Species (SIS) of River Gorai, a Distributary of the River Ganges, Bangladesh. J Biodivers Endanger Species 4:162. doi: 10.4172/2332-2543.1000162

Copyright: © 2016 Hanif MA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Small indigenous fish species (SIS) play a vital role in providing animal protein sources for human. The Gorai river, a Ganges tributary is a habitat of considerable number of SIS. A total of 11040 individual from 40 species were collected belonging 7 orders and 19 families using 5 fishing nets and 1 fish trap of which 2 species were critically endangered, 7 endangered, 7 species vulnerable, 18 species not threatened, 2 data deficient and 4 species were not in evaluated category. Dominant orders were Cypriniformes and Perciformes each contained 12 species, dominant family was Cyprinidae (11 species) and most dominant species was Chela cachius (2253 individuals). Diversity indices ranges from Simpson’s dominance index (0.06-0.09), Simpson’s index (0.91-0.94), Shannon Weiner index (3.08-3.24), Evenness (0.56-0.66), Menhinick’s index (0.61-0.67), Margalef’s index (4.48-4.77), Equitability (0.84-0.89) and Fisher alpha (5.86-6.31), respectively. Highest numbers (38) of SIS were caught by set bag net. Maximum total length 4.6 cm of Corica soborna was the new record. Considering the nutritional importance and reducing number of SIS inhabiting in the river Gorai, the present study aimed at documentation of SIS, their threatened status and conservation of SIS through laws and regulations.

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