Biodiversity Studies
ISSN: 2791- 7347
e-ISSN: 2979-9376

Biodiversity Studies

2023, Vol 2, Num, 1     (Pages: 037-047)

Current status and threats to fish biodiversity of Pailati beel, Bangladesh

Jannatul FERDOUS 1 ,Armina SULTANA 2 ,Sabrina Jannat MITU 3 ,Ashiqur Rahman SHRABON 2 ,Zobayer RAHMAN 4 ,Rasel MIA 2

1 Sylhet Agricultural University, Faculty of Fisheries, Department of Fish Biology & Genetics, Sylhet- 3100, Bangladesh
2 Sylhet Agricultural University, Faculty of Fisheries, Department of Aquatic Resource Management, Sylhet- 3100, Bangladesh
3 Sylhet Agricultural University, Faculty of Fisheries, Department of Coastal & Marine Fisheries, Sylhet- 3100, Bangladesh
4 Sylhet Agricultural University, Faculty of Fisheries, Department of Fish Health Management, Sylhet- 3100, Bangladesh

DOI: 10.56494/bist.2023.13
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To evaluate the current status of fish biodiversity, a study was carried out in the Pailati beel. It was carried out using key informant interviews (KII), focus group discussions (FGD), questionnaire interviews (QI) of fishermen, and secondary data collection. This water body comprised a total of 55 species, 23 families, and 10 orders, with 20% of the species being abundantly available, 40% of the species being commonly available, 29.09% of the species being moderately available, and 10.90% of the species being rarely available. Barbs and minnows (20%) were discovered to be the most common species, followed by carps (16.36%), catfishes (14.36%), and perches (14.55%). The most dominant order was the cypriniformes (38.18%), followed by the perciformes (20%) and the siluriformes (16.36%). Synbranchiformes, Clupeiformes, Osteoglossiformes, Beloniformes, Decapoda, and Anabantiformes made up the remaining seven classes. The values of the indices for Simpson dominance (C), Pielou's evenness (J'), Shannon-Weaver diversity (H), and Margalef's richness (d) in December, January, and February, respectively, were 0.91, 0.443, 3.25, 5.81, 0.94, 0.451, 3.29, and 5.95. Therefore, the results could be used to design and put into action plans that help to maintain the wetlands in a sustainable way.


Keywords : Biodiversity, Pailati beel, Conservation