The present study was carried out from Dulakhojiya beel (wetland) of Lakhimpur district, Assam, India during March, 2015 to February, 2016. During the reporting period, a total of 75 species belonging to 49 genera and 23 families were recorded. Cyprinidae was found to be dominant families with 27 species and followed by Bagridae (7 species); Cobitidae (6 species); Channidae (4 species); Siliridae, Schilbeidae and Osphronemidae with 3 species each. In terms of composition of genus, Cyprinidae have 15 genus followed by Cobitidae and Bagridae with 4 each while Schilbeidae with 3. As far as the species composition is concerned, the Cyprinidae was 30.0% followed by Bagridae (9.33%), Cobitidae (8.0%), Channidae (5.33%), Siluridae, Schilbeidae and Osphronemidae (4.0%) whereas rest of the families accounting with 2.66% and 1.33% each. According to IUCN-2015, a total of 55 species were found under least concerned (LC), 7 species were near threatened (NT), 2 species were vulnerable (VU), 4 species were data deficient (DD), 1 species as endangered (EN) and 6 species under not evaluated (NE). It is clear that Dulakhojia beel exhibit a good number of fish species.
Budhin Gogoi, Ramen Das, Santosh Kumar Abujam* and Debangshu Narayan Das