Articles | Volume 16, issue 9
https://doi.org/10.5194/bg-16-2033-2019
https://doi.org/10.5194/bg-16-2033-2019
Research article
 | 
15 May 2019
Research article |  | 15 May 2019

Diapycnal dissolved organic matter supply into the upper Peruvian oxycline

Alexandra N. Loginova, Sören Thomsen, Marcus Dengler, Jan Lüdke, and Anja Engel

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Cited articles

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Short summary
High primary production in the Peruvian upwelling system is followed by rapid heterotrophic utilization of organic matter and supports the formation of one of the most intense oxygen minimum zones (OMZs) in the world. Here, we estimated vertical fluxes of oxygen and dissolved organic matter (DOM) from the surface to the OMZ. Our results suggest that DOM remineralization substantially reduces oxygen concentration in the upper water column and controls the shape of the upper oxycline.
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