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Dheenan P.S.,Earth System science Organization National Institute of Ocean Technology | Jha D.K.,Earth System science Organization National Institute of Ocean Technology | Vinithkumar N.V.,Earth System science Organization National Institute of Ocean Technology | Ponmalar A.A.,Earth System science Organization National Institute of Ocean Technology | And 2 more authors.
Journal of Sea Research | Year: 2014

The purpose of this study was to determine the concentration, distribution of bacteria and physicochemical property of surface seawater in Rangat Bay, Middle Andaman, Andaman Islands (India). The bay experiences tidal variations. Perhaps physicochemical properties of seawater in Rangat Bay were found not to vary significantly. The concentration of faecal streptococci was high (2.2×103CFU/100mL) at creek and harbour area, whereas total coliforms were high (7.0×102CFU/100mL) at mangrove area. Similarly, total heterotrophic bacterial concentration was high (5.92×104CFU/100mL) in mangrove and harbour area. The Vibrio cholerae and Vibrio parahaemolyticus concentration was high (4.2×104CFU/100mL and 9×103CFU/100mL) at open sea. Cluster analysis showed grouping of stations in different tidal periods. The spatial maps clearly depicted the bacterial concentration pattern in the bay. The combined approach of multivariate analysis and spatial mapping techniques was proved to be useful in the current study. © 2013 Elsevier B.V. Source

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