Record Details

Response of deep-sea macrobenthos to a small-scale environmental disturbance

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Response of deep-sea macrobenthos to a small-scale environmental disturbance
 
Creator Ingole, B.S.
Ansari, Z.A.
Rathod, V.
Rodrigues, N.
 
Subject Indian Ocean
benthic disturbance
 
Description To assess the possible effect of nodule mining on deep-sea environment, the Indian deep-sea environment experiment (INDEX) was undertaken in the Indian Basin. The present investigation is a part of the disturbance and recolonization study. Pre- and post-disturbance sediment samples were collected from 21 stations between 10?01'-10? 03'S and 75?59'-76?02'E at water depths of 5300-5350 m to assess the effect of benthic disturbance. There was a significant change in the composition and biomass of macrofauna after the disturbance. Post-disturbance vertical profiles indicated a 63% reduction in the numerical count in the top 0-2-cm layer and high aggregation of macrofauna in deeper (5-10-cm) sediment layer. The impact of the disturbance was severe, as the mean biomass of macrofauna was significantly reduced in the disturbed area, probably due to the displacement and / or mortality caused by the benthic disturber.
 
Date 2006-12-05T08:43:02Z
2006-12-05T08:43:02Z
2001
 
Type Journal Article
 
Identifier Deep-Sea Research II, vol.48(16), 3401-3410p.
http://drs.nio.org/drs/handle/2264/529
 
Language en
 
Rights An edited version of this paper was published by Elsevier. Copyright [2001] Elsevier
 
Format 185674 bytes
application/pdf
 
Publisher Elsevier