Biogeosciences
Biogeosciences
BG
Articles | Volume 13, issue 16
Articles | Volume 13, issue 16
https://doi.org/10.5194/bg-13-4645-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/bg-13-4645-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 16
Research article
 | 
18 Aug 2016
Research article |  | 18 Aug 2016

Nitrogen isotopic evidence for a shift from nitrate- to diazotroph-fueled export production in the VAHINE mesocosm experiments

Angela N. Knapp, Sarah E. Fawcett, Alfredo Martínez-Garcia, Nathalie Leblond, Thierry Moutin, and Sophie Bonnet

Viewed

Total article views: 3,247 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
1,990 1,138 119 3,247 243 132 180
  • HTML: 1,990
  • PDF: 1,138
  • XML: 119
  • Total: 3,247
  • Supplement: 243
  • BibTeX: 132
  • EndNote: 180
Views and downloads (calculated since 14 Dec 2015)
Cumulative views and downloads (calculated since 14 Dec 2015)
Latest update: 18 Nov 2025
Download
Short summary
The goal of this manuscript was to track the fate of newly fixed nitrogen (N) in large volume mesocosms in the coastal waters of New Caledonia. We used a N isotope ("δ15N") budget and found a shift in the δ15N of sinking particulate N over the 23-day experiment, indicating that nitrate supported export production at the beginning of the experiment, but that nitrogen fixation supported export at the end. We infer that nitrogen fixation supported export production by a release of dissolved N.
Read more
Share
Special issue
Biogeochemical and biological response to a diazotroph bloom...
Altmetrics
Final-revised paper
Preprint