Study on Phenological Diversity of Chlorophycean Algae with its Role in Environment

Abstract

The River water algae can resist many environmental stresses. Usually they grow on water if the water is steady but the River water is also contaminated by series of natural reasons. Many genera can grow in the River water. The algae are identified by their shape, size, colour and morphological structure. The physiochemical status of the River water contributes to the phenology of Chlorophycean algae of the River Ganga in Kolkata. Maximum algal population was determined by testing the concentration of algae in the water of the Ganga River. Summer is the season when algal growths are seen at its peak but in the winter the concentration of those algal species are less. But the predominant two species are Chlamydomonas sp. and Dunalliellasp.