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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 8
Biogeosciences, 15, 2565–2585, 2018
https://doi.org/10.5194/bg-15-2565-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Interactions between planktonic organisms and biogeochemical...

Biogeosciences, 15, 2565–2585, 2018
https://doi.org/10.5194/bg-15-2565-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

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 et al.
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (23 Jan 2018) by Helge Niemann
AR by Mathieu Caffin on behalf of the Authors (27 Feb 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (06 Mar 2018) by Helge Niemann
RR by Annie Bourbonnais (22 Mar 2018)
ED: Publish subject to minor revisions (review by editor) (05 Apr 2018) by Helge Niemann
AR by Mathieu Caffin on behalf of the Authors (10 Apr 2018)  Author's response    Manuscript
ED: Publish as is (11 Apr 2018) by Helge Niemann
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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.
We performed N budgets to assess the role of N2 fixation on production and export in the western...
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