Distribution of heterotrophic bacteria in Kille backwaters, Porto Novo, southeast coast of India

K. Vasantha, L. Kannan


Heterotrophic bacteria (total viable counts) associated with water, sediment and a seagrass, Halophila ovalis (R.Br.) J.D. Hook, collected from the Kille backwaters of Porto Novo were studied. The genera, Vibrio pseudomonas, Alcaligenes and Flavo-bacterium - Cytophaga group were dominant. The total viable counts of heterotrophic bacteria associated with the seagrass were high as compared to water and sediment samples. Majority of the heterotrophs in water samples were proteolytic (77.77%) and lipolytic (64.44%). The heterottophic population associated with H. ovalis comprised mainly of amylolytic (83.75%) and lipolytic (80.00%) bacteria


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