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dc.contributor.authorPradhan, U.K.
dc.contributor.authorWu, Y.
dc.contributor.authorShirodkar, P.V.
dc.date.accessioned2019-12-31
dc.date.accessioned2020-02-04T09:38:24Z
dc.date.available2019-07-03
dc.date.available2020-02-04T09:38:24Z
dc.date.issued2019
dc.identifier.citationChemistry and Ecology, vol.35(6); 2019; 537-552
dc.identifier.urihttps://doi.org/10.1080/02757540.2019.1600682
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8260
dc.description.abstractSources of organic matter (OM) in lower Narmada and Tapiriver-estuaries were examinedusing organic carbon to nitrogen ratio (Corg/N),stable carbon isotope ratio ( 13Corg) andlignin phenol biomarkers. The signature of lower Corg (av. 0.50%)and higher  13Corg (av. -20.3‰) inNarmada and,higher Corg (av. 0.85%) and lower  13Corg (av. -22.8‰)in Tapihighlight the difference in OM characteristics ofboth systems, nevertheless they flow adjacent to each other. TheOM in Tapiwas predominated by fresh plant tissues, as indicated by higher 8=1.2–3.2 mg/100mgCorg,lower Ad/Alv = 0.22-0.46 and lower LPVI = 17-23. The plant OM present in the sediments of Narmada was previously degraded and mixed with soil. The OMcontribution from algaewas restricted to estuarine stations in both the rivers, which was~50% in Narmada and ~35% in Tapi. The contribution of OM from fresh vascular plant was higher (20% to 63%) in Tapithan Narmada (2% to 35%). This study illustrated the benefits of using lignin phenols along withCorg/N and  13Corgto identify the potential OM sourcesin two large river-estuary systems of India, whichhighlighted the complex interaction of natural and anthropogenic processes acted on theterrestrial OM compositions
dc.languageen
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleCarbon isotopic and biochemical fingerprints of sedimentary organic matter in lower Narmada and Tapi rivers, north-west coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Mumbai, Maharastra, India


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