Enumeration of Phytoplankton in Bhadra River, Karnataka
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Abstract
The present study was carried out on the varieties of phytoplankton/algae in the Bhadra river of Bhadravathi taluk, Karnataka for a period of six months (January to June 2017). A total of 67 species of phytoplankton belonging to 05 classes were recorded viz., Bacillariophyceae, Chlorophyceae, Cyanophyceae, Zygnematophyceae, Euglenophyceae and they are represented throughout the study period. Bacillariophyceae having 29 species followed by Chlorophyceae with 13 species, Zygnematophyceae by 07 species and Cyanophyceae with 06 species respectively. During the present study, the dominant genera recorded are Navicula, Synedra, Cosmarium, Spirogyra, Cymbella, Pinnularia, and Trachelomonas. Boyd diversity index values indicates the order of pollution and its values ranged from 1.45 to 2.05. Although the river is used for fisheries, irrigation and other recreational activities and it need regular monitoring.
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