Studies On Biodiversity Of Algal Flora Of Aurangabad Bihar

Abstract

The present study was carried out to determine physicochemical parameters and seasonal variation of algal flora of Adri river of Aurangabad town, Bihar. Aurangabad is one of the less floristically studied area. This is the first report of this river, for exploration and documentation of freshwater algae as well as estimation of various physicochemical parameters. Aurangabad town (Bihar) is located in north east India. The dist. lies between 24029 to 25007 north latitudes and 83059 to 84045 east longitudes. Aurangabad rests on alluvial plain on the bank of the Adri river. Due to agricultural runoff, domestic disposal and recently established Shree Cement plant the Adri river is getting highly polluted and as a result the phytoplankton and aquatic diversity get disturbed. In this investigation a total 34 genera of algae belonging to four different class namely Chlorophyceae, Cyanophyceae, Bacillariophyceae and Euglenophyceae, were reported. Out of these 34 generas, 14 have been identified from Chlorophyceae, 11 have been belonged to the class Cyanophyceae, 7 generas belonged to class Bacillariophyceae and least 2 genera belonged to the class Euglenophyceae. The physicochemical parameters of water collected from 3 different samples sites have been studied with respect to temperature, pH, D.O., T.S.S, T.D.S., Total alkalinity, total hardness and conductivity. The methods applied for the analysis as per the standard methods recommended by APHA. It is concluded that the water quality of the Adri river is very bad and unsuitable for drinking. Palmer s algal pollution index was also employed in the study sites and the result obtained that the water of all the three sites were organic polluted and not suitable for any use so it is recommended by the authors that it need to clean the water and stop to dispose all the sewage disposal in water directly because of which the Adri river may flow properly otherwise due to eutrophication the water body get extinct from the map.