Biodiversity Assessment of Indigenous Fish Species in the Surma River of Sylhet Sadar, Bangladesh
Biodiversity Assessment of Indigenous Fish Species in the Surma River of Sylhet Sadar, Bangladesh
Mohammed Anas Chowdhury1, Md. Abdul Karim1, Md. Tayfur Rahman1, Shoaibe Hossain Talukder Shefat1, Ashikur Rahman1, Mohammad Amzad Hossain2*
ABSTRACT
One year long study was executed from August 2016 to July 2017 to identify the present status of fish species diversity of Surma River at Sylhet Sadar, Northeast Bangladesh. A total of 51 fish species belonging to 16 taxonomic families has been identified. The most abundant family was recorded as Cyprinidae covering 36%, while the least abundant family was Gobidae and Plotosidae comprising 1%. A Shannon-Weaver diversity index was fluctuated between 2 to 2.5 with mean value 2.30±0.14, which reveals exposer to light pollution in study area. The peak Pielou’s evenness index value was 2.2 in April and the lowest value 1.47 in July with mean value 1.93±0.23. Maximum value of Simpson dominance index is 7.98 in August and minimum value 5.32 in October with mean value 6.99±0.86. The catch per unit effort ranged from 0.15 to 0.48 with an average value of 0.34±0.11.
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June 2019
Vol. 34, Iss. 1, pp. 1-104
