Abstract
Damodar is an important tributary of Ganga river basin and cater the needs of industries and growing human population in the eastern part of India. Assessment of algal diversity was carried out to understand the impact of coal mining and allied industrial activities on the ecological condition of Damodar river basin. Surface water and algal samples were collected in the summer (2009) from ten sites along the Damodar River. Bio-monitoring of algal diversity showed high organic pollution load in the Damodar River. These observations were confirmed by statistical analysis. Algal community analysis and multivariate analysis showed influence of organic pollution in the river. Cluster analysis (CA) identified the similarity and dissimilarity among sampling sites and discriminate the reference site from rest of the impacted sites in the Damodar river basin.
Highlights
Population pressure, urbanization, industrialization by a long way, added up the huge amount of waste which is toxic and nontoxic to the aquatic ecosystems
Physico-chemical, bacteriological and phytoplankton community analysis were carried out to understand the overall ecological health of Damodar River at ten sampling sites affected by mining and allied industrial activities from Patratu to Durgapur during summer
The major taxonomic divisions in Damodar River were dominated by Chlorophyceae followed by Bacillariophyceae, Cyanophycaea and Euglenophyceae
Summary
Population pressure, urbanization, industrialization by a long way, added up the huge amount of waste which is toxic and nontoxic to the aquatic ecosystems. These Pollutants alters the physico-chemical quality of water which eventually upset the biotic components of the aquatic system. Biomonitoring and bioindicational methods are useful alternative for assigning the ecological changes of aquatic ecosystems as biological communities shows overall effects of chemical, physical and geomorphological characteristics of water 39. Bioindicators and biotic indices have been adopted as technical standards in Germany 11 and in Austria 26. These methods have been used in Europe for more than a decade 16
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