Articles | Volume 18, issue 14
https://doi.org/10.5194/bg-18-4305-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-4305-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
23 Jul 2021
Research article |
| 23 Jul 2021
Nitrogen loss processes in response to upwelling in a Peruvian coastal setting dominated by denitrification – a mesocosm approach
Centre for Coastal Biogeochemistry, School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW, Australia
Eric P. Achterberg
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Javier Arístegui
Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria ULPGC, Las Palmas, Spain
Lennart T. Bach
Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
Isabel Baños
Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria ULPGC, Las Palmas, Spain
Tim Boxhammer
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Dirk Erler
Centre for Coastal Biogeochemistry, School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW, Australia
Maricarmen Igarza
Instituto del Mar del Perú (IMARPE), Dirección General de Investigaciones en Oceanografía y Cambio Climático, Callao, Peru
Verena Kalter
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Department of Ocean Sciences, Memorial University of Newfoundland, Logy Bay, Newfoundland, Canada
Andrea Ludwig
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Carolin Löscher
Department of Biology, Nordcee, Danish Institute for Advanced Study (DIAS), University of Southern Denmark, Campusvej 55, Odense M, Denmark
Jana Meyer
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Judith Meyer
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Fabrizio Minutolo
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Elisabeth von der Esch
Institute of Hydrochemistry, Chair of Analytical Chemistry and Water Chemistry, Technical University of Munich, Munich, Germany
Bess B. Ward
Department of Geosciences, Princeton University, Princeton, New Jersey 08544, USA
Ulf Riebesell
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Data sets
KOSMOS 2017 Peru mesocosm study: overview data Bach, L. T., Paul, A. J., Boxhammer, T., et al. https://doi.org/10.1594/PANGAEA.923395
Short summary
Upwelling of nutrient-rich deep waters to the surface make eastern boundary upwelling systems hot spots of marine productivity. This leads to subsurface oxygen depletion and the transformation of bioavailable nitrogen into inert N2. Here we quantify nitrogen loss processes following a simulated deep water upwelling. Denitrification was the dominant process, and budget calculations suggest that a significant portion of nitrogen that could be exported to depth is already lost in the surface ocean.
Upwelling of nutrient-rich deep waters to the surface make eastern boundary upwelling systems...
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