Controls on redox-sensitive trace metals in the Mauritanian oxygen minimum zone

Rapp, Insa; Schlosser, Christian; Menzel Barraqueta, Jan-Lukas; Wenzel, Bernhard; Lüdke, Jan; Scholten, Jan; Gasser, Beat; Reichert, Patrick; Gledhill, Martha; Dengler, Marcus; Achterberg, Eric P.

doi:https://doi.org/10.5194/bg-16-4157-2019

Articles | Volume 16, issue 21

https://doi.org/10.5194/bg-16-4157-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-16-4157-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 16, issue 21

Research article

|

05 Nov 2019

Research article |

| 05 Nov 2019

Controls on redox-sensitive trace metals in the Mauritanian oxygen minimum zone

Insa Rapp, Christian Schlosser, Jan-Lukas Menzel Barraqueta, Bernhard Wenzel, Jan Lüdke, Jan Scholten, Beat Gasser, Patrick Reichert, Martha Gledhill, Marcus Dengler, and Eric P. Achterberg

Supplement

https://doi.org/10.5194/bg-16-4157-2019-supplement

Data sets

Physical oceanography during METEOR cruise M107 G. Krahmann, M. Dengler, and S. Thomsen https://doi.org/10.1594/PANGAEA.860480

Hydrochemistry of water samples during METEOR cruise M107 S. Sommer and M. Dengler https://doi.org/10.1594/PANGAEA.885109

Trace metal data from water samples during METEOR cruise M107 Insa Rapp https://doi.org/10.1594/PANGAEA.907160

Download

Article (4685 KB)
Full-text XML

Short summary

The availability of iron (Fe) affects phytoplankton growth in large parts of the ocean. Shelf sediments, particularly in oxygen minimum zones, are a major source of Fe and other essential micronutrients, such as cobalt (Co) and manganese (Mn). We observed enhanced concentrations of Fe, Co, and Mn corresponding with low oxygen concentrations along the Mauritanian shelf, indicating that the projected future decrease in oxygen concentrations may result in increases in Fe, Mn, and Co concentrations.