Vol. 9, Issue 1, Part A (2023)

Limnological study is one of the most important parameter to assess the water quality of a water body. In this study authors tried to assess the seasonal variations in physico-chemical properties of water and plankton diversity during one year (July, 2020 - June, 2021) of a perennial dam of Bansagar of Madhya Pradesh. A significant level of variation was found in respect to these parameters throughout the study period. The planktonic populations in the pond indicates that the water of this dam is not yet seriously polluted since it contains freshwater algae Chara and Nitella and phytoplankton Volvex in the central region of dam. During the present study, presence of Chlorella, Oscillatoria, Anacystis, Scenedesmus, Branchionus, Keratella and Cyclops is considered as indicator of organic pollution, because all these genera were collected from polluted marginal water.