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Diatoms in Detection of Organic Pollution and Anthropogenic


Author(s):

Mahadev.J , 1College of Agriculture ,V.C.Farm, Mandya; Shivakumar, Agril.College,Mandya; Nagarathana, Govt first grade College for women ,Mandya; Munisamappa, Agril.College,Mandya; Ranganatha1 A.D & Janardhan, Agril.College,Mandya

Keywords:

Diatoms, Organic, Anthropogenic, Eutrophication, IDSE Index

Abstract:

Phytoplankton has long been used as indicators of water quality mainly due to their sensitivity and strong response to physical and chemical changes in waters. A diatom based IDSE/% index was applied to DalvoiLake at Mysore. The (Index of saprobity-Eutrophication) IDSE eutrophication conception (Louis Leclercq, 2008) is the diatom index of saprobity with index values between 1 and 5 for the levels of degradation in the lake. It involves identification and enumeration of only diatoms. In all the cases of the study the range of pollution is from non-existent-low-moderate-high-very high. Organic pollution in the lake ranges from non-existence to moderate indicating that the organic pollution in the lake is not significant. The Anthropogenic eutrophication is moderate and sometimes reaches higher levels. Species indicating organic pollution are Nitzschiapalea during most of the months, while species indicating anthropogenic eutrophication are Synedraacus, Synedra ulna, Stauroneisphoenicenteron and Raphalodiagibba. The study indicates that the lake has heavy anthropogenic eutrophication. Sensitivity values are also high. The IDSE index serves as an important tool in determining organic and anthropogenic eutrophication of lake waters.


Other Details:

Manuscript Id :IJSTEV2I8046
Published in :Volume : 2, Issue : 8
Publication Date: 01/03/2016
Page(s): 366-368
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