Assessment of Lake Water Quality by Using Palmer’s Pollution Genus Index in Manipur Lake, District Ahmedabad

The present study was carried out on Manipur lake of Ahmadabad. The phytoplankton were collected, counted and were identified by using the method suggested by APHA (1995) Prescott (1970) and Fresh water biology (W. T. Edmondson-1959). The phytoplanktons were counted by using Sedgwick Rafter counting cell. Different class such as cyanophyceae, chlorophyceae, bacillariophyceae and euglenophyceae were identified during the study. Among all these classes the listed phytoplankton such as Ankistrodesmus sp. and Scenedesmus sp. from chlorophyceae, merismopedia sp. from cyanophyceae, navicula sp. and nitzschia sp., euglena sp. from euglenophyceae recorded more in number during investigation period in Manipur lake. Chlorophyceae as a dominant genera in Manipur lake. The study was carried out monthly but was tabulated seasonally by using statistical method. From the listed data the quality of water was concluded.