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The experiment was carried out to investigate the species composition of fish and prawn in Ruhul beel and Bamonji beel under Chalan beel of Pabna district of Bangladesh. Data were collected from selected sanctuary sites, focus group discussion, personal and group contract as well as Government and Non-Government organizations with prepared and pretested questionnaire. A total of 38 fish species belonging to 24 Genus, 17 families and 8 orders (7 fish, 1 prawn) were recorded during the study period at Ruhul beel and Bamonji beel. The largest order recorded for both beels according to species frequency were Cypriniformes and Perciformes which contributed 36.84% (14 species) and 35.14% (12 species) for Ruhul beel and Bamonji beel followed by Perciformes and Cypriniformes which contributed 34.21% (13 species) and 32.43% (12 species) for Ruhul beel and Bamonji beel, respectively. The third largest species was Siluriformes for both beels contributed 10.53% (4 species) and 10.81% (4 species) to Ruhul beel and Bamonji beel, respectively followed by Channiformes which contributed 7.89% (3 species) and 8.11% (3 species) to Ruhul beel and Bamonji beel, respectively. The prevalence of other 4 orders was Beloniformes, Cyprinidontiformes, Decapoda and Tetraodontiformes both were contributed 2.63% (only 1 species) to Ruhul beel and 2.70% (only one species) Bamonji beel.

Investigation on species composition in Chalan beel of Bangladesh