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dc.contributor.authorFernandes, C.E.G.
dc.contributor.authorDeSouza, M.J.B.D.
dc.contributor.authorNair, S.
dc.contributor.authorLokaBharathi, P.A.
dc.date.accessioned2008-02-22T04:26:32Z
dc.date.available2008-02-22T04:26:32Z
dc.date.issued2005
dc.identifier.citationMarine georesources and geotechnology, Vol.23; 289-297p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/866
dc.description.abstractInformation on the response of nucleic acids (i.e., DNA and RNA) to simulated benthic disturbance was obtained from samples collected from eight sediment cores (0-10 cm) located in the Central Indian Basin (CIB). In general the total sedimentary DNA (DNA) increased with depth (from 380.09 to 408.99 mu g g sup(-1)), while total sedimentary RNA (RNA) decreased (from 878.13 to 484.16 mu g g sup(-1)). Following the simulated benthic disturbance brought about by the benthic hydraulic disturber, DNA decreased by 10% along the disturbed track while the RNA increased by around 75%. The RNA=DNA ratio decreased nearly 10%. However, the ratio doubled along the disturbed track suggesting that the activity was stimulated at molecular level following artificial disturbance. The nucleic acid ratio thus shows that the CIB sediments are metabolically active, and with disturbance the activity tends to increase further.
dc.language.isoen
dc.publisherTaylor and Francis
dc.rightsCopyright [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 If it is brought to our notice by copyright holder that the rights are voilated then the item would be withdrawn.
dc.subjectDNA
dc.subjectRNA
dc.subjectnucleic acid
dc.subjectbenthic environment
dc.subjectecosystem disturbance
dc.subjectsediments
dc.subjectmetabolism
dc.titleResponse of sedimentary nucleic acids to benthic disturbance in the Central Indian Basin
dc.typeJournal Article


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