Authors : Amal Kumar Patra and Tanmay Datta
Abstract: The diversity of Cypriniformes fish fauna of the Karala river at Jalpaiguri District of West Bengal has been studied from the period of February, 2009 to January, 2010. The objectives of that study were to find out the fresh water cypriniformes fish resource in that river and to detect their status on the basis of catch frequency (%). A total of 31 species belonging to 18 genera, 5 sub-families and 4 families were identified. Among the 31 species, 11 species were found under the sub-family Danioninae (Rasborinae); 14 species were found under the sub-family Cyprininae, two species were found under the sub-family Cobitinae, sub-family Noemacheilinae each and one species was found under the sub-family Cultrinae and family Psilorhynchidae each. Of these 31 species, on the basis of catch frequency, 6 (19.35%) were common, 3 each (9.68%) were abundant and frequent, 8 (25.8%) were occasional, 5 each (16.13%) were sporadic and rare species and one (3.23%) was extremely rare species. In this lotic system these fishes were distributed discontinuously. This discontinuous distribution is apparently attributed to the irregular depth of river and differential level of pollution.
Amal Kumar Patra and Tanmay Datta, 2010. Diversity of Cypriniformes Fish Fauna in Karala River, A Tributary ofTeesta River at Jalpaiguri District of West Bengal, India. Research Journal of Biological Sciences, 5: 106-110.