Biogeosciences
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Articles | Volume 13, issue 10
Articles | Volume 13, issue 10
https://doi.org/10.5194/bg-13-2889-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/bg-13-2889-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 10
Research article
 | 
18 May 2016
Research article |  | 18 May 2016

N2 fixation in eddies of the eastern tropical South Pacific Ocean

Carolin R. Löscher, Annie Bourbonnais, Julien Dekaezemacker, Chawalit N. Charoenpong, Mark A. Altabet, Hermann W. Bange, Rena Czeschel, Chris Hoffmann, and Ruth Schmitz

Supplement

https://doi.org/10.5194/bg-13-2889-2016-supplement

Data sets

Oxygen measured on water bottle samples during METEOR cruise M91 H. W. Bange https://doi.org/10.1594/PANGAEA.817193

Nutrients measured on water bottle samples during METEOR cruise M91 H. W. Bange https://doi.org/10.1594/PANGAEA.817174

Physical oceanography during METEOR cruise M90 G. Krahmann https://doi.org/10.1594/PANGAEA.830245

Hydrochemistry of water samples during METEOR cruise M90 L. Stramma and M. Lohmann https://doi.org/10.1594/PANGAEA.857751

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Short summary
The ocean is full of eddies and they play a key role for ocean biogeochemistry. In order to understand dinitrogen (N2) fixation, one major control of oceanic primary production, we investigated three eddies in the eastern tropical South Pacific off Peru. We conducted the first detailed survey and found increased N2 fixation in the oxygen-depleted cores of anticyclonic mode water eddies. Taken together, we could – for the first time – show that eddies play an important role in N2 fixation off Peru.
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Biogeochemical processes, tropospheric chemistry and interactions...
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