Arpana Sharma and Radha Sahu
Algal Biotechnology Laboratory, University Department of Botany, Ranchi University, Ranchi
Received 25th December, 2008; Revised 7th July, 2009
Abstract : The present study focuses attention on a comprehensive study of algal community with reference to their species diversity index, species richness and analysis of water to assess the impact of waste disposal of TTPS ( Tenughat Thermal Power Station) on algae in different seasons.The Tenughat thermal power station under Jharkhand Government was designed with the objectives to supply an assured quantum of 25 to 47 cumecs of water throughout the year for industrial use in the basin area. The Tenughat dam is on Damodar river.Tenughat thermal power plant releases effluents in the form of total suspended solid, ash content coal as well as oils and grease which is directly added to the river. Three sampling sites were selected from the study area. Algal samples were collected from the three different sites in different seasons during July 2007 to July 2008 and arranged class wise in tabular form. The species diversity index (H’) was calculated using the Shannon and Wiener’s(1949) formula. Average of the ash concentration and load data of river Damodar was also compared with dominancy of phytoplankton. Altogether 55 phytoplankton taxa of three different classes viz. Cyanophyceae, Chlorophyceae and Bacillariophyceae were recorded from the above three sites. Higher abundance of Cyanophyceae and Bacillariophyceae due to the presence of higher ash content and suspended particulate matters at all the sites indicated the pollution status.