摘要：In view of increasing pollution and subsequent algal growth in waters of River a detailed study of algal flora of river Kali at Mainpuri has been conducted during present investigation. Physicochemical characteristics of water samples from river Kali at Mainpuri have revealed varying levels of pollution. Quantitative and qualitative estimates have been made on monthly basis and as many as 44 significant algal species have been identified which can tolerate high degree of pollution. Their role as possible indicators of pollution has been discussed. Principal groups of algae constitute Cyanobacteria, Chlorophyceae and Chrysophyceae. The most significant finding being that apart from 3 species of Euglena and 5 species of Scenedesmus which perhaps are the best adapted species of polluted waters, the members of Cyanobacteria like Oscillatoria, Merismopedia, Chroococcus and Spirulina etc. are the major pollution indicating species. The other dominant group is the diatoms with the genera like Nitzschia, Navicula, Synendra, Gomphonema and Fragilaria etc. Species of Microcystis, Nostoc, Anabaena, Cladophora, Spirogyra, Closterium, Pediastrum, Hydrodictyon are abundantly found during present investigation.
