Determination of chlorophyceae members Abundance in rawatsar pond of Hanumangarh District, Rajasthan state.

Chlorophyceae represent a morphologically diverse group of photosynthetic organisms usually identified as green algae. This is the largest and heterogenous group of freshwater algae ranging in size from microscopic unicellular or coenocytic to large colonies and extensive filamentous. Present study is a part of survey conducted on fresh water algal flora from Rawatsar pond of Hanumangarh district, Rajasthan, India. A total of 14 distinct species of Chlorophyceae family were identified belonging to 7 genera and 5 varieties, during the period of January 2014 to August 2015. Out of 7 genera, Scenedesums (4 species and 3 varieties), Pediastrum (3 species and 1 variety) were abundant at the studied site. Algae characterization was performed based on morphological characters using light microscope and Furthermore identification was done using known monographs. This is the first time that algal flora has been reported from Rawatsar pond. Presence of Scenedesmus and Pediastrum suggest eutrophic condition of water body. This study provides information regarding diversity and abundance of algal species in Rawatsar pond of Hanumangarh district, which may be used to determine environmental condition of the water bodies in the Hanumangarh district.