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dc.contributor.authorAhmed, A.
dc.contributor.authorNaik, H.
dc.contributor.authorAdel, S.S.
dc.contributor.authorBardhan, P.
dc.contributor.authorGauns, M.
dc.contributor.authorNaik, B.
dc.contributor.authorNaqvi, S.W.A.
dc.date.accessioned2019/04/29
dc.date.accessioned2019-04-30T12:48:23Z
dc.date.available2019/02/01
dc.date.available2019-04-30T12:48:23Z
dc.date.issued2019
dc.identifier.citationJournal of Sea Research, vol.144; 2019; 16-21
dc.identifier.issn1385-1101
dc.identifier.urihttps://doi.org/10.1016/J.SEARES.2018.09.018
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8101
dc.description.abstractBiological production in aquatic systems is often nitrogen limited. Nitrogen (N2) fixation is an important contributor to nitrogen requirement of phytoplankton not only in oligotrophic but also in nutrient-replete waters. However, the importance of N2 fixation in meso-polyhaline estuaries is not well known. Here we report significant N2 fixation rates, ranging between 0.1 and 34--mol-N-m-3-d-1 from the Mandovi and Zuari estuaries, two typical tropical monsoon-affected estuaries located along the Indian west coast. The estuarine waters were moderately rich in nutrients with nitrate concentration up to 5--M in the Mandovi and 6--M in the Zuari and PO4- up to 1--M. Chlorophyll a concentration varied between 0.1 and 8-mg-m-3 with moderate primary production (up to 262-mg C m-3-d-1). The organisms responsible for the observed diazotrophic activity in the estuaries still remain to be identified.
dc.languageen
dc.publisherElsevier
dc.relation.isreferencedbySCI
dc.titleNitrogen fixation and carbon uptake in a tropical estuarine system of Goa, western India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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