Algal Population and Percentage Composition of Different Algal Groups of Godavari River at Nashik (MS), India

摘要

Algal biodiversity, population and percentage composition of different algal groups from river Godavari was studied for two consecutive years (Aug, 2003- July, 2005). Algal collection was carried out from five selected sampling stations of river from Nashik to Nandur-Madhmeshwar dam. Monthly collection of algal forms were carried out and analyzed for its qualitative and quantitative study. At many sampling stations domestic wastes and municipal sewage is being dumped daily in addition to agricultural run-off, which causes the enrichment of nutrients in river water causing the luxurious growth of algae.During present investigations, six algal groups were recorded. viz, Chlorophyceae, Charophyceae, Cyanophyceae, Euglenophyceae, Dinophyceae and Bacillariophyceae. During present studies tremendous variations in algal diversity, its population and percentage composition was noticed. Change in water flow, transparency and temperature affected the growth and abundance of algae in river water. Chlorophyceae was found to be the dominant group followed by Bacillariophyceae, Cyanophyceae and Euglenophyceae. Charophyceae and Dinophyceae members were sparsely recorded.