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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

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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
 
Creator Gobalakrishnan, Rajagopal
Aarthi, Chandramohan
Kamala, Kannan
Sivakumar, Kannan
Kannan, Lakshmanan
 
Subject Seasonal variation
Havelock island
Total heterotrophic bacteria
Pathogens
Population density
 
Description 1600-1607
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.
 
Date 2016-06-27T13:17:27Z
2016-06-27T13:17:27Z
2014-08
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34520
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(8) [August 2014]