Biogeosciences
Biogeosciences
Biogeosciences
Articles | Volume 17, issue 18
Articles | Volume 17, issue 18
Biogeosciences, 17, 4663–4679, 2020
https://doi.org/10.5194/bg-17-4663-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Ocean deoxygenation: drivers and consequences – past, present...

Biogeosciences, 17, 4663–4679, 2020
https://doi.org/10.5194/bg-17-4663-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 18

Research article 25 Sep 2020

Research article | 25 Sep 2020

Sediment release of dissolved organic matter to the oxygen minimum zone off Peru

Alexandra N. Loginova et al.

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Latest update: 02 Dec 2021
Special issue
Ocean deoxygenation: drivers and consequences – past, present...
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Short summary
We measured dissolved organic carbon (DOC), nitrogen (DON) and matter (DOM) optical properties in pore waters and near-bottom waters of the eastern tropical South Pacific off Peru. The difference between diffusion-driven and net fluxes of DOC and DON and qualitative changes in DOM optical properties suggested active microbial utilisation of the released DOM at the sediment–water interface. Our results suggest that the sediment release of DOM contributes to microbial processes in the area.
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