Articles | Volume 12, issue 24
https://doi.org/10.5194/bg-12-7467-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-12-7467-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| Highlight paper
| 
21 Dec 2015
Research article | Highlight paper |
| 21 Dec 2015
Hidden biosphere in an oxygen-deficient Atlantic open-ocean eddy: future implications of ocean deoxygenation on primary production in the eastern tropical North Atlantic
C. R. Löscher
Department of biology, Institute for General Microbiology, Kiel, Germany
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
M. A. Fischer
Department of biology, Institute for General Microbiology, Kiel, Germany
S. C. Neulinger
Department of biology, Institute for General Microbiology, Kiel, Germany
B. Fiedler
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
M. Philippi
Department of biology, Institute for General Microbiology, Kiel, Germany
F. Schütte
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
A. Singh
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
now at: Physical Research Laboratory, Geosciences Division, Ahmedabad, 380 009, India
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
J. Karstensen
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
A. Körtzinger
GEOMAR, Helmholtz Centre for Ocean Research Kiel, Kiel University, Kiel, Germany
Christian-Albrechts-Universität zu Kiel, Kiel, Germany
S. Künzel
Max Planck Institute for Evolutionary Biology, Plön, Germany
R. A. Schmitz
Department of biology, Institute for General Microbiology, Kiel, Germany
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Cited
31 citations as recorded by crossref.
- Quantification of dissolved oxygen dynamics in a semi-enclosed sea – A comparison of observational platforms D. Meyer et al. 10.1016/j.csr.2018.09.011
- System controls of coastal and open ocean oxygen depletion G. Pitcher et al. 10.1016/j.pocean.2021.102613
- Dead zone or oasis in the open ocean? Zooplankton distribution and migration in low-oxygen modewater eddies H. Hauss et al. 10.5194/bg-13-1977-2016
- No nitrogen fixation in the Bay of Bengal? C. Löscher et al. 10.5194/bg-17-851-2020
- Water column biogeochemistry of oxygen minimum zones in the eastern tropical North Atlantic and eastern tropical South Pacific oceans C. Löscher et al. 10.5194/bg-13-3585-2016
- Upwelling and isolation in oxygen-depleted anticyclonic modewater eddies and implications for nitrate cycling J. Karstensen et al. 10.5194/bg-14-2167-2017
- Biogeochemical Role of Subsurface Coherent Eddies in the Ocean: Tracer Cannonballs, Hypoxic Storms, and Microbial Stewpots? I. Frenger et al. 10.1002/2017GB005743
- Bathypelagic particle flux signatures from a suboxic eddy in the oligotrophic tropical North Atlantic: production, sedimentation and preservation G. Fischer et al. 10.5194/bg-13-3203-2016
- Particulate matter flux interception in oceanic mesoscale eddies by the polychaete Poeobius sp. S. Christiansen et al. 10.1002/lno.10926
- Transport, properties, and life cycles of mesoscale eddies in the eastern tropical South Pacific R. Czeschel et al. 10.5194/os-14-731-2018
- Climate-Biogeochemistry Interactions in the Tropical Ocean: Data Collection and Legacy G. Krahmann et al. 10.3389/fmars.2021.723304
- Low oxygen eddies in the eastern tropical North Atlantic: Implications for N2O cycling D. Grundle et al. 10.1038/s41598-017-04745-y
- Islands as eddy transformation and generation hotspots: Cabo Verde case study C. Cardoso et al. 10.1016/j.pocean.2020.102271
- Generation Mechanisms of Mesoscale Eddies in the Mauritanian Upwelling Region A. Dilmahamod et al. 10.1175/JPO-D-21-0092.1
- Distribution of nitrogen-cycling genes in an oxygen-depleted cyclonic eddy in the Alfonso Basin, Gulf of California R. Ramos-de la Cruz et al. 10.1071/MF20074
- Mesoscale contribution to the long-range offshore transport of organic carbon from the Canary Upwelling System to the open North Atlantic E. Lovecchio et al. 10.5194/bg-15-5061-2018
- Eddy-enhanced primary production sustains heterotrophic microbial activities in the Eastern Tropical North Atlantic Q. Devresse et al. 10.5194/bg-19-5199-2022
- Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016) G. Fischer et al. 10.5194/bg-18-6479-2021
- Oxygen utilization and downward carbon flux in an oxygen-depleted eddy in the eastern tropical North Atlantic B. Fiedler et al. 10.5194/bg-13-5633-2016
- Restructuring of Epibacterial Communities on Fucus vesiculosus forma mytili in Response to Elevated pCO2 and Increased Temperature Levels B. Mensch et al. 10.3389/fmicb.2016.00434
- Quantifying the Contribution of Ocean Mesoscale Eddies to Low Oxygen Extreme Events J. Atkins et al. 10.1029/2022GL098672
- Biogeochemistry of greenhouse gases in coastal upwelling systems: Processes and sensitivity to global change Z. Lachkar et al. 10.1525/elementa.2023.00088
- Linking physical processes to biological responses: Interdisciplinary observational insights into the enhanced biological productivity of the Cape Verde Archipelago F. Schütte et al. 10.1016/j.pocean.2025.103479
- Unraveling the distribution patterns of bacterioplankton in a mesoscale cyclonic eddy confined to an oxygen-depleted basin S. Pajares 10.3354/ame01975
- Nitrate-dependent iron oxidation limits iron transport in anoxic ocean regions F. Scholz et al. 10.1016/j.epsl.2016.09.025
- Unravelling environmental drivers and patterns of Portuguese man o' war (Physalia physalis) blooms in two ocean regions: North Atlantic and the Southeast Pacific L. Colaço Martins et al. 10.1016/j.marpolbul.2024.117278
- Microorganisms and ocean global change D. Hutchins & F. Fu 10.1038/nmicrobiol.2017.58
- Manifestation, Drivers, and Emergence of Open Ocean Deoxygenation L. Levin 10.1146/annurev-marine-121916-063359
- A submesoscale coherent vortex in the Ligurian Sea: From dynamical barriers to biological implications A. Bosse et al. 10.1002/2016JC012634
- Characterization of “dead-zone” eddies in the eastern tropical North Atlantic F. Schütte et al. 10.5194/bg-13-5865-2016
- Eddies as trigger for diatom productivity in the open-ocean Northeast Atlantic O. Romero et al. 10.1016/j.pocean.2016.07.011
30 citations as recorded by crossref.
- Quantification of dissolved oxygen dynamics in a semi-enclosed sea – A comparison of observational platforms D. Meyer et al. 10.1016/j.csr.2018.09.011
- System controls of coastal and open ocean oxygen depletion G. Pitcher et al. 10.1016/j.pocean.2021.102613
- Dead zone or oasis in the open ocean? Zooplankton distribution and migration in low-oxygen modewater eddies H. Hauss et al. 10.5194/bg-13-1977-2016
- No nitrogen fixation in the Bay of Bengal? C. Löscher et al. 10.5194/bg-17-851-2020
- Water column biogeochemistry of oxygen minimum zones in the eastern tropical North Atlantic and eastern tropical South Pacific oceans C. Löscher et al. 10.5194/bg-13-3585-2016
- Upwelling and isolation in oxygen-depleted anticyclonic modewater eddies and implications for nitrate cycling J. Karstensen et al. 10.5194/bg-14-2167-2017
- Biogeochemical Role of Subsurface Coherent Eddies in the Ocean: Tracer Cannonballs, Hypoxic Storms, and Microbial Stewpots? I. Frenger et al. 10.1002/2017GB005743
- Bathypelagic particle flux signatures from a suboxic eddy in the oligotrophic tropical North Atlantic: production, sedimentation and preservation G. Fischer et al. 10.5194/bg-13-3203-2016
- Particulate matter flux interception in oceanic mesoscale eddies by the polychaete Poeobius sp. S. Christiansen et al. 10.1002/lno.10926
- Transport, properties, and life cycles of mesoscale eddies in the eastern tropical South Pacific R. Czeschel et al. 10.5194/os-14-731-2018
- Climate-Biogeochemistry Interactions in the Tropical Ocean: Data Collection and Legacy G. Krahmann et al. 10.3389/fmars.2021.723304
- Low oxygen eddies in the eastern tropical North Atlantic: Implications for N2O cycling D. Grundle et al. 10.1038/s41598-017-04745-y
- Islands as eddy transformation and generation hotspots: Cabo Verde case study C. Cardoso et al. 10.1016/j.pocean.2020.102271
- Generation Mechanisms of Mesoscale Eddies in the Mauritanian Upwelling Region A. Dilmahamod et al. 10.1175/JPO-D-21-0092.1
- Distribution of nitrogen-cycling genes in an oxygen-depleted cyclonic eddy in the Alfonso Basin, Gulf of California R. Ramos-de la Cruz et al. 10.1071/MF20074
- Mesoscale contribution to the long-range offshore transport of organic carbon from the Canary Upwelling System to the open North Atlantic E. Lovecchio et al. 10.5194/bg-15-5061-2018
- Eddy-enhanced primary production sustains heterotrophic microbial activities in the Eastern Tropical North Atlantic Q. Devresse et al. 10.5194/bg-19-5199-2022
- Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016) G. Fischer et al. 10.5194/bg-18-6479-2021
- Oxygen utilization and downward carbon flux in an oxygen-depleted eddy in the eastern tropical North Atlantic B. Fiedler et al. 10.5194/bg-13-5633-2016
- Restructuring of Epibacterial Communities on Fucus vesiculosus forma mytili in Response to Elevated pCO2 and Increased Temperature Levels B. Mensch et al. 10.3389/fmicb.2016.00434
- Quantifying the Contribution of Ocean Mesoscale Eddies to Low Oxygen Extreme Events J. Atkins et al. 10.1029/2022GL098672
- Biogeochemistry of greenhouse gases in coastal upwelling systems: Processes and sensitivity to global change Z. Lachkar et al. 10.1525/elementa.2023.00088
- Linking physical processes to biological responses: Interdisciplinary observational insights into the enhanced biological productivity of the Cape Verde Archipelago F. Schütte et al. 10.1016/j.pocean.2025.103479
- Unraveling the distribution patterns of bacterioplankton in a mesoscale cyclonic eddy confined to an oxygen-depleted basin S. Pajares 10.3354/ame01975
- Nitrate-dependent iron oxidation limits iron transport in anoxic ocean regions F. Scholz et al. 10.1016/j.epsl.2016.09.025
- Unravelling environmental drivers and patterns of Portuguese man o' war (Physalia physalis) blooms in two ocean regions: North Atlantic and the Southeast Pacific L. Colaço Martins et al. 10.1016/j.marpolbul.2024.117278
- Microorganisms and ocean global change D. Hutchins & F. Fu 10.1038/nmicrobiol.2017.58
- Manifestation, Drivers, and Emergence of Open Ocean Deoxygenation L. Levin 10.1146/annurev-marine-121916-063359
- A submesoscale coherent vortex in the Ligurian Sea: From dynamical barriers to biological implications A. Bosse et al. 10.1002/2016JC012634
- Characterization of “dead-zone” eddies in the eastern tropical North Atlantic F. Schütte et al. 10.5194/bg-13-5865-2016
1 citations as recorded by crossref.
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Latest update: 06 Jul 2025
Short summary
The waters of the tropical Atlantic Open Ocean usually contain comparably high concentrations of oxygen. Now, it became clear that there are watermasses related to eddies that are nearly anoxic. We surveyed one of those eddies and found a biosphere that largely differed from the usual biosphere present in this area with a specific community responsible for primary production and for degradation processes. Further, we found the very first indication for active nitrogen loss in the open Atlantic.
The waters of the tropical Atlantic Open Ocean usually contain comparably high concentrations of...
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