dc.contributor.author | Pradhan, U.K. | |
dc.contributor.author | Wu, Y. | |
dc.contributor.author | Shirodkar, P.V. | |
dc.date.accessioned | 2019-12-31 | |
dc.date.accessioned | 2020-02-04T09:38:24Z | |
dc.date.available | 2019-07-03 | |
dc.date.available | 2020-02-04T09:38:24Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Chemistry and Ecology, vol.35(6); 2019; 537-552 | |
dc.identifier.uri | https://doi.org/10.1080/02757540.2019.1600682 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/8260 | |
dc.description.abstract | Sources 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.language | en | |
dc.relation.isreferencedby | SCI | |
dc.rights | Only the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations | |
dc.title | Carbon isotopic and biochemical fingerprints of sedimentary organic matter in lower Narmada and Tapi rivers, north-west coast of India | |
dc.type | Journal Article | |
dc.affiliation.author | CSIR-National Institute of Oceanography, Mumbai, Maharastra, India | |