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Present status of endangered fish species in Sylhet Sadar, Bangladesh

Publication Date - 2016-12-29 00:00:00

Publication Title : Present status of endangered fish species in Sylhet Sadar, Bangladesh

Publicationed By : Md. Arifur Rahman (Arifin)

Publication Publication Date : 2016-12-29 00:00:00

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Publication Description :

Present status of endangered fish species in Sylhet Sadar, Bangladesh

 

Maria AB1, Iqbal MM1*, Hossain MAR2, Rahman MA3, Uddin S1, Hossain MA1&4 and Jabed MN1 

 

1. Department of Fish Biology and Genetics, Sylhet Agricultural University, Sylhet-3100, Bangladesh; 

2. Department of Fisheries Biology and Genetics, Bangladesh Agricultural University, Mymensingh, Bangladesh; 

3. Department of Fisheries Biology and Genetics, Faculty of Fisheries, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh; 

4. College of Science and Technology, Universite de Bordeaux, Bordeaux, France 

 

ABSTRACT 

 

An eight month survey was conducted from April to November 2014 in four fish markets at Sylhet Sadar, Bangladesh. Fish species were identified in situ. A total of 79 fish species were reported among which 17 species were endangered (21.51%), 13 were vulnerable (16.46%), 8 were critically endangered (10.13%), 6 were exotic (7.59%), 27 were near threatened (34.17%), 3 were not evaluated (3.81%) and 5 species were not threatened (6.32%). Among them, 38 were threatened which comprises 48.10% on the individuals basis. Among 28 endangered fish species in Bangladesh, 17 were encountered in the study area.The Shannon-Weaver diversity index was found to be oscillated from 2.09 to 2.48 with mean of 2.3±0.16. Highest value for Margalef’s richness index was 1.53 and lowest 1.25 with mean of 1.42±0.12. The peak evenness value was 0.9 ranges between 0.79- 09 occupying averages of 0.84±0.05. The evenness values represent the uneven distribution of the endangered fish species in the study area. The maximum dominance value was 0.88 and minimum 0.84 with mean value of 0.87±0.02. Among the 17 documented endangered fish species in the study area 12 species were rarely available and rest 5 species were found to be available. On the basis of presence of endangered fish species, highest number of fish species 17 was documented from Kazir Bazar Fish Market, followed by 16 in Bandar Bazar Fish Market, 16 in MahatabpurMatsshoArat, and least 14 in Tuker Bazar Fish Market. Keywords: Endangered fish species, present status, Sylhet Sadar, Bangladesh.



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