Impact of Seasonal Fluctuation on Diatom Diversity in Natanahalli Lake, Kurubahalli Lake, Yelemuddanahalli Lake and Katnalu Lake of Krishnarajanagara Taluk, Mysuru District, Karnataka, India
Journal Title: International Journal of Research and Review - Year 2018, Vol 5, Issue 5
Abstract
As a foremost contributor to primary productivity in the aquatic ecosystem, diatoms play a pivotal role in the food chain. Due to their ubiquitous nature, they are copiously present in aquatic environments. The present study was undertaken to investigate the diversity and ecology of phytoplankton in four lakes of K.R.Nagar Taluk, Mysuru. Our appraisal reveals the presence of diverse diatom communities confirming that diatoms are an important bio indicators for assessing ecological quality of the lakes studied with respect to organic pollution and anthropogenic eutrophication. Overall identified diatoms in four lakes are predicted as water quality indicators. Synedra ulna and Navicula rynocephala were considered as the most common anthropogenic eutrophication indicator. Navicula halophila and Synedra acus were proved to be organic pollution indicators in polluted lakes. So our findings highlighted that diatom species diversity was rich in Kurubahalli lake, Yelemuddanahalli lake and Katnalu lake compared to Natanahalli lake. Analysis of all the values obtained in each lake revealed that Kurubahalli lake was polluted by organic pollution whereas Natanahalli lake, Yelemuddanahalli lake and Katnalu lake was polluted by human activities.
Authors and Affiliations
S. P. Purushotham
Keywords
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