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Indian Deep-sea Environment Experiment (INDEX): An appraisal

DRS at CSIR-National Institute of Oceanography

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Title Indian Deep-sea Environment Experiment (INDEX): An appraisal
 
Creator Sharma, R.
 
Subject baseline studies
deep-sea mining
ocean floor
research programmes
environmental effects
water column
benthic environment
 
Description Indian Deep-sea Environment Experiment (INDEX) is a multi-disciplinary study to establish baseline conditions and evaluate the possible impact of deep-seabed mining in Central Indian Basin. A disturbance was simulated to study the effects of sediment re-suspension and re-settlement in the benthic areas. Monitoring the process of restoration and recolonisation of benthic environment and development of predictive models for environmental impact of deep seabed mining are underway. Significant information on physical, chemical, biological and geological characteristics of water column and benthic baseline conditions has been generated in the programme. Evaluation of impact of simulated disturbance on the seafloor shows vertical mixing of sediment on the seafloor, lateral migration of sediment plume, changes in geochemical and biochemical conditions as well as reduction in biomass in the benthic environment. The results obtained are useful in determining the indicator parameters and standardising the methods for assessment of effects of large-scale mining
 
Date 2009-01-07T10:43:43Z
2009-01-07T10:43:43Z
2001
 
Type Journal Article
 
Identifier Deep-Sea Research (II: Topical Studies in Oceanography), Vol.48; 3295-3307p.
http://drs.nio.org/drs/handle/2264/1566
 
Language en
 
Rights Copyright [2001]. 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 Pergamon