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|Title:||Distribution of Aerobic and Anaerobic Bacteria along the Intertidal Zones of Sunderban Mangrove Ecosystems, NE Coast of Bay of Bengal, India|
Ghosh, P. K.
|Abstract:||Population of aerobic and anaerobic bacteria along the different tidal zones of Sundarban Mangrove forest sediment was studied to determine their distribution with the availability of different nutrients and other physicochemical parameters. Lower littoral zone (LLZ) along the shore which remains inundated by sea water showed more population of anaerobic bacteria (212 x 104 CFUg-1) than that of mid littoral zone(MLZ) (102 x 104 CFUg-1) and upper littoral zone(ULZ) (60 x 104 CFUg-1). Population of aerobic bacteria was found to be maximum in ULZ (57 x 104 CFUg-1) compared to MLZ (46 x 104 CFUg-1) and LLZ (14 x 104 CFUg-1). Population of methanogens increased with rise of sea level which in turn emitted more methane than CO2. A stable dynamic equilibrium for growth rate of aerobic and anaerobic bacteria observed in ULZ and is ecologically more consistent than LLZ particularly with respect to methane emission from sediment. Anaerobic bacteria are relatively more tolerant to variable salinity, pH and other physicochemical factors than the aerobic bacteria.|
|ISSN:||0975-1033 (Online); 0379-5136 (Print)|
|Appears in Collections:||IJMS Vol.41(5) [October 2012]|
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