Abstract            Volume:6  Issue-6  Year-2018         Original Research Articles

Online ISSN : 2347 - 3215 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcret@gmail.com

Freshwater gastropod snail Indoplanorbis exustus is a highly tolerant organism to stressors and can thrive well in polluted waters. Even healthy gastropod snails concentrate bacteria in their body and can act as reservoirs of pathogens, and this character indicates that the snails act as bio-indicator of pathogenic organisms, which they harbor through the aquatic environment. An attempt has been made to investigate the total number of bacterial colonies and the density of each bacterial isolate in the body fluid (hemolymph) of healthy Indoplanorbis exustus to highlight the fact that this Freshwater gastropod snail could be a tool as an environmental microbial  bio-indicator. The results indicate a mean total density of bacterial species that have been isolated from the hemolymph.  Among the six isolates, the density of Escherichia coli  was the maximum ranging from 3.2 x 10⁴ to 2.20 x 10⁶ CFU/ml and the lowest record was of Pseudomnas spp., ranging from 9 x 10³ to 6.8 x 10⁵ CFU/ml. This finding reveals that FW gastropod snails such as Indoplanorbis exustus could be a tool for bacterial indicators in monitoring water quality in polluted environments.

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