摘要：The Lower Manair Dam (LMD) gets water from Kakatiya canal which connects the Manair Dam and putto use for drinking purpose and irrigation purpose since from 1995. The Manakondur Tank (MT), whichis located near the Karimnager city, provides water for irrigation, drinking and also used for recreationalactivities. Both the water bodies under study are also tourist places and covered with agriculturelands and rocky hills. There are many aquatic ecosystems which remain unexplored, in which LMDand MT were also not received attention. Hence, the present study was undertaken to elucidatecertain aspects of ecology of phytoplanktons of the selected water bodies in Karimnager, TelanganaState, India, with reference to their seasonal abundance and population dynamics under changingenvironment, during the period of September 2012 to August 2014. A total of 182 forms of euplanktonicand tycoplanktonic algae belonging to 94 genera were recorded from the sampling water bodiesduring the period of study. In the present investigation, four groups of algae were studied in whichBacillariophyceae, Chlorophyceae, Cyanophyceae and Euglenophyceae were identified. Communityof phytoplankton was constituted by the members of 4 classes, of which 41 belonged toBacillariophyceae, 65 to Chlorophyceae, 57 to Cyanophyceae and 19 to Euglenophyceae. TheChlorophyceae members were predominant over others in LMD, and Cyanophyceae over others in MTwater body.
