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Subject: search.filters.subject.Eutrophication

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    STUDIES ON PHYTOPLANKTON POPULATION AND SPECIES DIVERSITY IN THREE WETLANDS OF COIMBATORE, TAMIL NADU, INDIA
    (International Journal Of Current Research, 2014-08) R, Ilangovan; R, Manikandan; N, Ezhili; K, Subramaniam
    The present study concerns monthly variations of phytoplankton species composition, population density, species diversity during September 2012 to March 2013 in Ukkadam, Kuruchi and Singanallur Lakes Coimbatore, Tamil Nadu, India. The total of 20 (Ukkadam Lake), 34 (Kuruchi Lake) and 26 genera (Siganallur Lake) were identified under phytoplankton diversity in studied three lakes. Present study revealed maximum species composition of Chlorophyceae (15 species), Bacillariophyceae (12 species) and Euglenophyceae (6 species) were recorded at Kuruchi Lake. When compared genera wise, Euglenophyceae group were rarely found in both Ukkadam Lake and Singanallur Lake during the study period, it was indicated that these lakes were polluted by organic components. The present baseline information of the phytoplankton distribution and abundance would form a useful tool for further ecological assessment and monitoring of these lakes of Coimbatore.
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    DIVERSITY AND SEASONAL VARIATION OF ZOOPLANKTON IN UKKADAM LAKE, COIMBATORE, TAMIL NADU, INDIA
    (International Journal of Current Research, 2013-08) N, Ezhili; R, Manikandan; R, Illangovan
    Zooplanktons are good indicators for changes of water quality, because they are strongly affected by environmental conditions and respond quickly for the changes in environmental quality. The present study was carried out to examine the diversity and density of zooplankton in Ukkadam lake, Coimbatore, Tamil Nadu, India, for the period of one year from May 2003 to April 2004. During the present study period, a total of 36 genera of zooplank 6 to Copepoda maximum during summer (March, April and M for zooplankton population varied from 1.74 to 3.63. Maximum numbers of zooplankton were recorded in the months of March and October. result was clearly indicating intensified eutrophication of lake