dc.contributor.author | Ahmed, A. | |
dc.contributor.author | Naik, H. | |
dc.contributor.author | Adel, S.S. | |
dc.contributor.author | Bardhan, P. | |
dc.contributor.author | Gauns, M. | |
dc.contributor.author | Naik, B. | |
dc.contributor.author | Naqvi, S.W.A. | |
dc.date.accessioned | 2019/04/29 | |
dc.date.accessioned | 2019-04-30T12:48:23Z | |
dc.date.available | 2019/02/01 | |
dc.date.available | 2019-04-30T12:48:23Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Journal of Sea Research, vol.144; 2019; 16-21 | |
dc.identifier.issn | 1385-1101 | |
dc.identifier.uri | https://doi.org/10.1016/J.SEARES.2018.09.018 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/8101 | |
dc.description.abstract | Biological 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.language | en | |
dc.publisher | Elsevier | |
dc.relation.isreferencedby | SCI | |
dc.title | Nitrogen fixation and carbon uptake in a tropical estuarine system of Goa, western India | |
dc.type | Journal Article | |
dc.affiliation.author | CSIR-National Institute of Oceanography, Dona Paula, Goa, India | |