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Macrobenthic standing stock in the nodule areas of Central Indian Ocean Basin

DRS at CSIR-National Institute of Oceanography

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Title Macrobenthic standing stock in the nodule areas of Central Indian Ocean Basin
 
Creator Pavithran, S.
Ingole, B.S.
 
Subject benthos
biomass
vertical distribution
ferromanganese nodules
faunal provinces
abundance
environmental impact
 
Description Diversity, distribution and standing stock of macrofauna in the nodule areas of Central Indian Ocean Basin (CIOB) were studied during April 2003. The density ranged between 22 to 132 no.m super(-2) (mean: 55 + or - 37 SD, n=25) and biomass ranged (AFDW) between 0.2 to 33 mg. M super(-2) (mean: 7 + or - 10 SD). Vertically the fauna was observed down to a sediment depth of 40 cm. The highest values were in the top 0-10 cm depth and decreased with increasing sediment depth. Polychaetes were the dominant taxa followed by the crustaceans. Generally, the density and biomass was lower in the CIOB but comparable with the abyssal areas of NE Atlantic and Western Atlantic.
 
Date 2008-02-22T04:45:43Z
2008-02-22T04:45:43Z
2005
 
Type Conference Article
 
Identifier Proceedings of National Seminar on Polymetallic Nodules (PMN 2005), RRL, Bhubaneswar, 29-30 September, eds. Anand, S.; Sanjay, K. 26-31p.
http://drs.nio.org/drs/handle/2264/888
 
Language en
 
Rights Copyright [2005]. It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
 
Publisher Regional Research laboratory, Bhubaneswar