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Ecosystem characterization in Indian Ocean sector, Antarctica

DRS at CSIR-National Institute of Oceanography

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Title Ecosystem characterization in Indian Ocean sector, Antarctica
 
Creator Matondkar, S.G.P.
Dhargalkar, V.K.
Parulekar, A.H.
 
Description High Chl a) values characterized the surface water (0.445-2.085 mg m sup(-3)) and column (14.63-105.46 mg m sup(-2)). The rate and magnitude pattern of production varied under pack ice influence and also in offshore region. The divergence zone is most pronounced, which makes Indian Ocean sector an upwelled area marked by high nutrients, appreciable growth rate of phytoplankton and rich organic matter in the water column. The fractionation studies revealed the importance of picoautotrophs and picoheterotrophs in food chain. The bacterioplankton equals the zooplankton biomass, at second trophic level. The zooplankton biomass recorded was 100 g/1000 m sup(3) , 50 g/1000 m sup(3) being krill. The 50% of zooplankton were copepods alone. Its relation to fronts, blooming nature of plankton and other components of ecosystem is assessed and discussed, for delineating ecosystems in Antarctic marine environment
 
Date 2009-01-20T12:15:37Z
2009-01-20T12:15:37Z
1996
 
Type Book Chapter
 
Identifier Scientific report: Twelfth Indian Expedition to Antarctica, 207-231p.
http://drs.nio.org/drs/handle/2264/2161
 
Language en
 
Relation DOD Tech. Publ.. 10
 
Rights Copyright [1996]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Department of Ocean Development, India