Articles | Volume 17, issue 19
Biogeosciences, 17, 4831–4852, 2020
https://doi.org/10.5194/bg-17-4831-2020

Special issue: Ecological and biogeochemical functioning of the coastal upwelling...

Biogeosciences, 17, 4831–4852, 2020
https://doi.org/10.5194/bg-17-4831-2020

Research article 12 Oct 2020

Research article | 12 Oct 2020

Factors controlling plankton community production, export flux, and particulate matter stoichiometry in the coastal upwelling system off Peru

Lennart Thomas Bach et al.

Data sets

KOSMOS 2017 Peru mesocosm study: overview data L. T. Bach, A. Paul, T. Boxhammer, E. von der Esch, M. Graco, K. G. Schulz, E. P. Achterberg, P. Aguayo, J. Arístegui Ruiz, P. Ayón, I. Banos, A. Bernales, A. S. Boegeholz, F. P. Chavez, S.-M. Chen, K. Doering, A. Filella, M. A. Fischer, P. Grasse, M. Haunost, J. Hennke, N. Hernandez-Hernandez, M. Hopwood, M. Igarza, V. Kalter, L. Kittu, P. Kohnert, J. Ledesma, C. Lieberum, S. Lischka, C. R. Löscher, A. Ludwig, U. Mendoza, J. Meyer, J. Meyer, F. Minutolo, J. Ortiz Cortes, J. Piiparinen, C. Sforna, K. Spilling, S. Sanchez, C. Spisla, M. Sswat, M. Zavala Moreira, and U. Riebesell https://doi.org/10.1594/PANGAEA.923395

Video supplement

Orni-eutrophication by Inca terns (Larosterna inca) during the KOSMOS study 2017 in the coastal upwelling system off Peru Tim Boxhammer, Lennart Thomas Bach, Michael Sswat, and Ulf Riebesell https://doi.org/10.3289/ORNI_EUTROPHICATION

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Short summary
The eastern boundary upwelling system off Peru is among Earth's most productive ocean ecosystems, but the factors that control its functioning are poorly constrained. Here we used mesocosms, moored ~ 6 km offshore Peru, to investigate how processes in plankton communities drive key biogeochemical processes. We show that nutrient and light co-limitation keep productivity and export at a remarkably constant level while stoichiometry changes strongly with shifts in plankton community structure.
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