• Prescilla Devapriya. J
• B.D. Sheeja
• Burranboina Kirankumar

ABSTRACT: The present study was aimed to investigate the organic matter, pH effect on microbial diversity throughout the year Marlimund lake, Marlimund, Ooty, Nilgiris is an in the Udhagamandalam City in Tamil Nadu State, India. Microorganisms are involved in a variety of biogeochemical processes in natural environments. Dissolved organic matter is primarily composed of soluble portions of fresh plant and animal residues. Particulate organic matter is partially resistant to microbial decomposition and serves as an important long term supply of nutrients. Marlimund Reservoir is an important reservoir of water and a typical eutrophic freshwater lake. From the lake soil samples were collected on a monthly basis, analyzed and recorded. The results were shown organic matter is directly proportion to microbial diversity. And shows that the analysed reservoir four Stations was influenced by bacterial community, pH and organic matter content, whereas comparatively little change was observed among IV stations in stratified conditions.

Key words: Marlimund lake, Organic matter, pH, Monthly variations and Microbial diversity.

"A Comparative Study on the Effect of Organic Matter and pH on The Microbial Diversity in the Different Stations of Marlimund Lake, Ooty, The Nilgiris.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.192-196, July-2018, Available :http://www.jetir.org/papers/JETIR1807749.pdf

"A Comparative Study on the Effect of Organic Matter and pH on The Microbial Diversity in the Different Stations of Marlimund Lake, Ooty, The Nilgiris.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp192-196, July-2018, Available at : http://www.jetir.org/papers/JETIR1807749.pdf