Articles | Volume 15, issue 8
https://doi.org/10.5194/bg-15-2565-2018
https://doi.org/10.5194/bg-15-2565-2018
Research article
 | 
02 May 2018
Research article |  | 02 May 2018

N2 fixation as a dominant new N source in the western tropical South Pacific Ocean (OUTPACE cruise)

Mathieu Caffin, Thierry Moutin, Rachel Ann Foster, Pascale Bouruet-Aubertot, Andrea Michelangelo Doglioli, Hugo Berthelot, Cécile Guieu, Olivier Grosso, Sandra Helias-Nunige, Nathalie Leblond, Audrey Gimenez, Anne Alexandra Petrenko, Alain de Verneil, and Sophie Bonnet

Viewed

Total article views: 4,915 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
3,199 1,526 190 4,915 187 200
  • HTML: 3,199
  • PDF: 1,526
  • XML: 190
  • Total: 4,915
  • BibTeX: 187
  • EndNote: 200
Views and downloads (calculated since 06 Nov 2017)
Cumulative views and downloads (calculated since 06 Nov 2017)

Viewed (geographical distribution)

Total article views: 4,915 (including HTML, PDF, and XML) Thereof 4,727 with geography defined and 188 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved (final revised paper)

Latest update: 17 Jun 2026
Download
Short summary
We performed N budgets to assess the role of N2 fixation on production and export in the western tropical South Pacific Ocean. We deployed a combination of techniques including high-sensitivity measurements of N input and sediment traps deployment. We demonstrated that N2 fixation was the major source of new N before atmospheric deposition and upward nitrate fluxes. It contributed significantly to organic matter export, indicating a high efficiency of this region to export carbon.
Share
Altmetrics
Final-revised paper
Preprint