European Journal of Biomedical and Pharmaceutical Sciences

DIVERSITY AND DISTRIBUTION OF ZOOPLANKTONS IN THE RIVER HIRAN

Dr. Yogendra Kumar Payasi*

ABSTRACT

Present work was carried out to investigate the diversity and distribution of zooplanktons in River Hiran. Samples were collected from five sampling stations, namely Kimdeshwar, Khitoula, Ghat Simariya, Khinni and Hirapur for two consecutive years. The most dominant zooplankton species collected were Daphnia pulex, Macrothrix rosea, Diaphanosoma brachyaurum and Alonella sps., of phylum Cladocera were recorded from the River Hiran. A total of 50 species of zooplanktons were identified from Hiran River in the year 2006 and 2007. In which 14 species of Protozoa, 17 species of Rotifera, 14 species of Cladocera and 05 species of Copepoda were represented the zooplanktons density. Zooplanktons densities have gradually increased from 183.00org/1 in July (S-5) to 2680.50org/1 in March (S-2). The population of zooplanktons expressed as average numerical values, varied from 183.00org/l and 2680.50org/l during the study period. The maximum population was recorded in the month of March, while the minimum was in the month of July.

Keywords: River Hiran, Zooplanktons, Production, Distribution and Diversity.