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http://nopr.niscpr.res.in/handle/123456789/34520| Title: | Seasonal variations in the culturable diversity and population density of the total heterotrophic and pathogenic bacteria, in the coastal waters of the Andaman Sea, India |
| Authors: | Gobalakrishnan, Rajagopal Aarthi, Chandramohan Kamala, Kannan Sivakumar, Kannan Kannan, Lakshmanan |
| Keywords: | Seasonal variation;Havelock island;Total heterotrophic bacteria;Pathogens;Population density |
| Issue Date: | Aug-2014 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Present study examined the seasonal variations of total heterotrophic and pathogenic bacterial diversity of the coastal waters of the Andaman Sea in the Havelock island. In the non-moonson season, 22 strains of total hetrotrophic bacteria (THB) belonging to 8 genera, were isolated from water. Escherichia (23%) was dominant, followed by Pseudomonas (18%), Vibrio (14%), Enterococcus (14%), Salmonella (9%), Aeromonas (9%), Klebsiella (9%) and Cornebacterium (4%). In the monsoon season, 29 strains of THB belonging to 12 genera, were isolated. Vibrio (14%), Micrococcus (14%) and Klebsiella (14%) were dominant and contributed equally to the percent composition followed by Escherichia (10%), Streptococcus(10%), Enterococcus (10%), Pseudomonas (7%), Aeromonas (7%), Salmonella (4%), Shigella (4%), Flavobacterium (3%) and Staphylococcus (3%). Population density of THB varied from 43 X105 CFU mL-1 to 182 X105 CFU mL-1 in the non-monsoon season. In the monsoon season, it varied from 93 X105 CFU mL-1 to 365 X105 CFU mL-1. In the monsoon, THB diversity including pathogens was higher as monsoon would provide with a favourable microenvironment for the higher growth of THB and pathogenic bacteria. |
| Page(s): | 1600-1607 |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Appears in Collections: | IJMS Vol.43(08) [August 2014] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJMS 43(8) 1600-1607.pdf | 350.65 kB | Adobe PDF | View/Open |
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