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.

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Cited articles

Albert, A., Echevin, V., Lévy, M., and Aumont, O.: Impact of nearshore wind stress curl on coastal circulation and primary productivity in the Peru upwelling system, J. Geophys. Res.-Oceans, 115, 1–13, https://doi.org/10.1029/2010JC006569, 2010. 
Arístegui, J. and Harrison, W. G.: Decoupling of primary production and community respiration in the ocean: implications for regional carbon studies, Aquat. Microb. Ecol., 29, 199–209, 2002. 
Ayón, P., Criales-Hernandez, M. I., Schwamborn, R., and Hirche, H. J.: Zooplankton research off Peru: A review, Prog. Oceanogr., 79, 238–255, https://doi.org/10.1016/j.pocean.2008.10.020, 2008. 
Bach, L. T., Taucher, J., Boxhammer, T., Ludwig, A., Achterberg, E. P., Algueró-Muñiz, M., Anderson, L. G., Bellworthy, J., Büdenbender, J., Czerny, J., Ericson, Y., Esposito, M., Fischer, M., Haunost, M., Hellemann, D., Horn, H. G., Hornick, T., Meyer, J., Sswat, M., Zark, M., and Riebesell, U.: Influence of Ocean Acidification on a Natural Winter-to-Summer Plankton Succession: First Insights from a Long-Term Mesocosm Study Draw Attention to Periods of Low Nutrient Concentrations, PLoS One, 11, e0159068, https://doi.org/10.1371/journal.pone.0159068, 2016a. 
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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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