Published Paper Details:

Present paper deals with the analysis of Diversity of Phytoplanktons. Phytoplanktons are the chief primary producers and are of prime importance in aquatic ecosystem as the productivity of aquatic ecosystem is totally dependent on these. The diversity of phytoplankton components in the aquatic ecosystem serve as a reliable index for monitoring a water body. In this research examined the phytoplankton diversity in Ottu Reservoir, which is situated 14 k.m. away from Sirsa(Haryana). Samples were collected monthly from April 2012 to June 2013. Different Species of phytoplankton related to the member of four groups, namely Chlorophyceae (greens) Cyanophyceae (blue greens) and Bacillariophyceae (diatoms)and Euglenophyceae were observed.During the present study period,a total of 26 species of Phytoplankton were recorded out of which Chlorophyceae was represented by 9 species, Cyanophyceae by 8 species, where as Bacillariophyceae and Euglenophyceae each represented by 6 and 2 species respectively. Climate of local environment factors are likely to have major impact on phytoplankton diversity of fresh water.