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Biochemical composition of Antarctic zooplankton from the Indian Ocean sector

DRS at CSIR-National Institute of Oceanography

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Title Biochemical composition of Antarctic zooplankton from the Indian Ocean sector
 
Creator Ingole, B.S.
Parulekar, A.H.
 
Subject zooplankton
biochemical composition
abundance
species composition
polar waters
Euphausia superba
 
Description Zooplankton samples were analysed for faunal composition, organic carbon, protein, carbohydrate and lipid content. Total zooplankton biomass (as displacement volume) varied from 0.032 to 0.500 ml.m sup(-3) (x = 0.23 + or - 0.14) in upper 200 m with significant difference between the Antarctic and the sub-Antarctic waters. Calanoid copepods were numerically the predominant group comprising greater than 80% of total counts, whereas, euphausiid Euphausia superba was abundant in samples collected south of lat. 55 degrees S. Organic carbon concentrations ranged from 0.83 to 13.04 mgC.m sup(-3) (x = 5.91 + or - 3.59). Lipid was the principal biochemical component, varying between 11.08 to 27.65% (x = 21.04 + or - 4.39). Protein content showed large variations and ranged between 8.02 and 29.9% (x = 19.57 + or - 6.25). Values for carbohydrate content varied from 11.01 to 27.65% (x = 19.62 + or - 4.80). Higher accumulation of lipids in Antarctic zooplankton during phytoplankton blooms (austral summer) could be an adaptative phenomenon, and may function as metabolic reserve and insulation layer
 
Date 2009-01-25T05:36:00Z
2009-01-25T05:36:00Z
1995
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.24; 73-76p.
http://drs.nio.org/drs/handle/2264/2295
 
Language en
 
Rights Copyright [1995]. 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 NISCAIR, CSIR