Articles | Volume 12, issue 21
https://doi.org/10.5194/bg-12-6515-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/bg-12-6515-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
13 Nov 2015
Research article |
| 13 Nov 2015
Production regime and associated N cycling in the vicinity of Kerguelen Island, Southern Ocean
A. J. Cavagna
CORRESPONDING AUTHOR
Analytical, Environmental and Geo-Chemistry dept. (AMGC), Earth System Sciences Research Group, Vrije Universiteit Brussel, Brussels, Belgium
F. Fripiat
Analytical, Environmental and Geo-Chemistry dept. (AMGC), Earth System Sciences Research Group, Vrije Universiteit Brussel, Brussels, Belgium
M. Elskens
Analytical, Environmental and Geo-Chemistry dept. (AMGC), Earth System Sciences Research Group, Vrije Universiteit Brussel, Brussels, Belgium
P. Mangion
Centre for Coastal Biogeochemistry Research, Southern Cross University, Lismore, Australia
L. Chirurgien
Aix-Marseille Université, Université de Toulon, CNRS/INSU, IRD, MIO, UM110, 13288, Marseille, CEDEX 09, France
I. Closset
Sorbonne Universités, UPMC, LOCEAN Laboratory, 4 place Jussieu, 75005 Paris, France
M. Lasbleiz
Aix-Marseille Université, Université de Toulon, CNRS/INSU, IRD, MIO, UM110, 13288, Marseille, CEDEX 09, France
L. Florez-Leiva
Program of Oceanography, University of Antioquia, Medellin, Colombia
Program of Biology, University of Magdalena, Santa Marta, Colombia
D. Cardinal
Sorbonne Universités, UPMC, LOCEAN Laboratory, 4 place Jussieu, 75005 Paris, France
K. Leblanc
Aix-Marseille Université, Université de Toulon, CNRS/INSU, IRD, MIO, UM110, 13288, Marseille, CEDEX 09, France
C. Fernandez
Department of Oceanography, COPAS SurAustral program and Interdisciplinary Center for Aquaculture Research (INCAR), University of Concepción, Chile
Sorbonne Universités, UPMC, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
D. Lefèvre
Aix-Marseille Université, Université de Toulon, CNRS/INSU, IRD, MIO, UM110, 13288, Marseille, CEDEX 09, France
L. Oriol
Sorbonne Universités, UPMC, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
S. Blain
Sorbonne Universités, UPMC, UMR7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, 66650 Banyuls/mer, France
B. Quéguiner
Aix-Marseille Université, Université de Toulon, CNRS/INSU, IRD, MIO, UM110, 13288, Marseille, CEDEX 09, France
F. Dehairs
Analytical, Environmental and Geo-Chemistry dept. (AMGC), Earth System Sciences Research Group, Vrije Universiteit Brussel, Brussels, Belgium
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38 citations as recorded by crossref.
- Protist Interactions and Community Structure During Early Autumn in the Kerguelen Region (Southern Ocean) I. Sassenhagen et al. 10.1016/j.protis.2019.125709
- Biogeochemical controls on ammonium accumulation in the surface layer of the Southern Ocean S. Smith et al. 10.5194/bg-19-715-2022
- Iron requirements and uptake strategies of the globally abundant marine ammonia-oxidising archaeon, Nitrosopumilus maritimus SCM1 R. Shafiee et al. 10.1038/s41396-019-0434-8
- Database of nitrification and nitrifiers in the global ocean W. Tang et al. 10.5194/essd-15-5039-2023
- A Circum‐Antarctic Plankton Isoscape: Carbon Export Potential Across the Summertime Southern Ocean L. Stirnimann et al. 10.1029/2023GB007808
- Temporal variability in the trophic composition of benthic invertebrates in the Indian Sub-Antarctic Ocean E. Puccinelli et al. 10.1016/j.dsr.2020.103340
- Marked spatiotemporal variations in small phytoplankton structure in contrasted waters of the Southern Ocean (Kerguelen area) S. Irion et al. 10.1002/lno.11555
- The Seasonal Cycle of Nitrogen Uptake and Nitrification in the Atlantic Sector of the Southern Ocean M. Mdutyana et al. 10.1029/2019GB006363
- Controls on nitrite oxidation in the upper Southern Ocean: insights from winter kinetics experiments in the Indian sector M. Mdutyana et al. 10.5194/bg-19-3425-2022
- Unveiling the Si cycle using isotopes in an iron-fertilized zone of the Southern Ocean: from mixed-layer supply to export I. Closset et al. 10.5194/bg-13-6049-2016
- Characterizing Marine Heatwaves in the Kerguelen Plateau Region Z. Su et al. 10.3389/fmars.2020.531297
- Annual particulate matter and diatom export in a high nutrient, low chlorophyll area of the Southern Ocean M. Rembauville et al. 10.1007/s00300-017-2167-3
- Microzooplankton diversity and potential role in carbon cycling of contrasting Southern Ocean productivity regimes U. Christaki et al. 10.1016/j.jmarsys.2021.103531
- The Role of Zooplankton in Establishing Carbon Export Regimes in the Southern Ocean – A Comparison of Two Representative Case Studies in the Subantarctic Region S. Halfter et al. 10.3389/fmars.2020.567917
- Phytoplankton‐Nitrifier Interactions Control the Geographic Distribution of Nitrite in the Upper Ocean X. Wan et al. 10.1029/2021GB007072
- The kinetics of ammonium uptake and oxidation across the Southern Ocean M. Mdutyana et al. 10.1002/lno.12050
- Differentiating Lithogenic Supplies, Water Mass Transport, and Biological Processes On and Off the Kerguelen Plateau Using Rare Earth Element Concentrations and Neodymium Isotopic Compositions M. Grenier et al. 10.3389/fmars.2018.00426
- Seasonal microbial food web dynamics in contrasting Southern Ocean productivity regimes U. Christaki et al. 10.1002/lno.11591
- Ecological control of nitrite in the upper ocean E. Zakem et al. 10.1038/s41467-018-03553-w
- Natural marine cloud brightening in the Southern Ocean G. Mace et al. 10.5194/acp-23-1677-2023
- Origin and fate of long-chain polyunsaturated fatty acids in the Kerguelen Islands region (Southern Ocean) in late summer M. Remize et al. 10.1016/j.jmarsys.2021.103693
- Composition of diatom communities and their contribution to plankton biomass in the naturally iron-fertilized region of Kerguelen in the Southern Ocean M. Lasbleiz et al. 10.1093/femsec/fiw171
- Impact of the natural Fe-fertilization on the magnitude, stoichiometry and efficiency of particulate biogenic silica, nitrogen and iron export fluxes N. Lemaitre et al. 10.1016/j.dsr.2016.09.002
- Recent advances in marine N-cycle studies using 15N labeling methods H. Marchant et al. 10.1016/j.copbio.2016.04.019
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- Microbial iron uptake in the naturally fertilized waters in the vicinity of the Kerguelen Islands: phytoplankton–bacteria interactions M. Fourquez et al. 10.5194/bg-12-1893-2015
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- The relative importance of phytoplankton aggregates and zooplankton fecal pellets to carbon export: insights from free-drifting sediment trap deployments in naturally iron-fertilised waters near the Kerguelen Plateau E. Laurenceau-Cornec et al. 10.5194/bg-12-1007-2015
- Early spring mesopelagic carbon remineralization and transfer efficiency in the naturally iron-fertilized Kerguelen area S. Jacquet et al. 10.5194/bg-12-1713-2015
- Dissolved greenhouse gases (nitrous oxide and methane) associated with the naturally iron-fertilized Kerguelen region (KEOPS 2 cruise) in the Southern Ocean L. Farías et al. 10.5194/bg-12-1925-2015
- Differences in foraging habitat result in contrasting fisheries interactions in two albatross populations A. Corbeau et al. 10.3354/meps13648
- Significant mixed layer nitrification in a natural iron‐fertilized bloom of the Southern Ocean F. Fripiat et al. 10.1002/2014GB005051
- Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms M. Landa et al. 10.1038/ismej.2015.105
25 citations as recorded by crossref.
- Protist Interactions and Community Structure During Early Autumn in the Kerguelen Region (Southern Ocean) I. Sassenhagen et al. 10.1016/j.protis.2019.125709
- Biogeochemical controls on ammonium accumulation in the surface layer of the Southern Ocean S. Smith et al. 10.5194/bg-19-715-2022
- Iron requirements and uptake strategies of the globally abundant marine ammonia-oxidising archaeon, Nitrosopumilus maritimus SCM1 R. Shafiee et al. 10.1038/s41396-019-0434-8
- Database of nitrification and nitrifiers in the global ocean W. Tang et al. 10.5194/essd-15-5039-2023
- A Circum‐Antarctic Plankton Isoscape: Carbon Export Potential Across the Summertime Southern Ocean L. Stirnimann et al. 10.1029/2023GB007808
- Temporal variability in the trophic composition of benthic invertebrates in the Indian Sub-Antarctic Ocean E. Puccinelli et al. 10.1016/j.dsr.2020.103340
- Marked spatiotemporal variations in small phytoplankton structure in contrasted waters of the Southern Ocean (Kerguelen area) S. Irion et al. 10.1002/lno.11555
- The Seasonal Cycle of Nitrogen Uptake and Nitrification in the Atlantic Sector of the Southern Ocean M. Mdutyana et al. 10.1029/2019GB006363
- Controls on nitrite oxidation in the upper Southern Ocean: insights from winter kinetics experiments in the Indian sector M. Mdutyana et al. 10.5194/bg-19-3425-2022
- Unveiling the Si cycle using isotopes in an iron-fertilized zone of the Southern Ocean: from mixed-layer supply to export I. Closset et al. 10.5194/bg-13-6049-2016
- Characterizing Marine Heatwaves in the Kerguelen Plateau Region Z. Su et al. 10.3389/fmars.2020.531297
- Annual particulate matter and diatom export in a high nutrient, low chlorophyll area of the Southern Ocean M. Rembauville et al. 10.1007/s00300-017-2167-3
- Microzooplankton diversity and potential role in carbon cycling of contrasting Southern Ocean productivity regimes U. Christaki et al. 10.1016/j.jmarsys.2021.103531
- The Role of Zooplankton in Establishing Carbon Export Regimes in the Southern Ocean – A Comparison of Two Representative Case Studies in the Subantarctic Region S. Halfter et al. 10.3389/fmars.2020.567917
- Phytoplankton‐Nitrifier Interactions Control the Geographic Distribution of Nitrite in the Upper Ocean X. Wan et al. 10.1029/2021GB007072
- The kinetics of ammonium uptake and oxidation across the Southern Ocean M. Mdutyana et al. 10.1002/lno.12050
- Differentiating Lithogenic Supplies, Water Mass Transport, and Biological Processes On and Off the Kerguelen Plateau Using Rare Earth Element Concentrations and Neodymium Isotopic Compositions M. Grenier et al. 10.3389/fmars.2018.00426
- Seasonal microbial food web dynamics in contrasting Southern Ocean productivity regimes U. Christaki et al. 10.1002/lno.11591
- Ecological control of nitrite in the upper ocean E. Zakem et al. 10.1038/s41467-018-03553-w
- Natural marine cloud brightening in the Southern Ocean G. Mace et al. 10.5194/acp-23-1677-2023
- Origin and fate of long-chain polyunsaturated fatty acids in the Kerguelen Islands region (Southern Ocean) in late summer M. Remize et al. 10.1016/j.jmarsys.2021.103693
- Composition of diatom communities and their contribution to plankton biomass in the naturally iron-fertilized region of Kerguelen in the Southern Ocean M. Lasbleiz et al. 10.1093/femsec/fiw171
- Impact of the natural Fe-fertilization on the magnitude, stoichiometry and efficiency of particulate biogenic silica, nitrogen and iron export fluxes N. Lemaitre et al. 10.1016/j.dsr.2016.09.002
- Recent advances in marine N-cycle studies using 15N labeling methods H. Marchant et al. 10.1016/j.copbio.2016.04.019
- Nitrogen uptake and nitrification in the subarctic North Atlantic Ocean X. Peng et al. 10.1002/lno.10784
13 citations as recorded by crossref.
- Carbon export in the naturally iron-fertilized Kerguelen area of the Southern Ocean based on the <sup>234</sup>Th approach F. Planchon et al. 10.5194/bg-12-3831-2015
- Carbon, oxygen and biological productivity in the Southern Ocean in and out the Kerguelen plume: CARIOCA drifter results L. Merlivat et al. 10.5194/bg-12-3513-2015
- Autonomous profiling float observations of the high-biomass plume downstream of the Kerguelen Plateau in the Southern Ocean M. Grenier et al. 10.5194/bg-12-2707-2015
- Microbial iron uptake in the naturally fertilized waters in the vicinity of the Kerguelen Islands: phytoplankton–bacteria interactions M. Fourquez et al. 10.5194/bg-12-1893-2015
- Nitrogen cycling in the Southern Ocean Kerguelen Plateau area: evidence for significant surface nitrification from nitrate isotopic compositions F. Dehairs et al. 10.5194/bg-12-1459-2015
- Chemometric perspectives on plankton community responses to natural iron fertilisation over and downstream of the Kerguelen Plateau in the Southern Ocean T. Trull et al. 10.5194/bg-12-1029-2015
- Iron budgets for three distinct biogeochemical sites around the Kerguelen Archipelago (Southern Ocean) during the natural fertilisation study, KEOPS-2 A. Bowie et al. 10.5194/bg-12-4421-2015
- The relative importance of phytoplankton aggregates and zooplankton fecal pellets to carbon export: insights from free-drifting sediment trap deployments in naturally iron-fertilised waters near the Kerguelen Plateau E. Laurenceau-Cornec et al. 10.5194/bg-12-1007-2015
- Early spring mesopelagic carbon remineralization and transfer efficiency in the naturally iron-fertilized Kerguelen area S. Jacquet et al. 10.5194/bg-12-1713-2015
- Dissolved greenhouse gases (nitrous oxide and methane) associated with the naturally iron-fertilized Kerguelen region (KEOPS 2 cruise) in the Southern Ocean L. Farías et al. 10.5194/bg-12-1925-2015
- Differences in foraging habitat result in contrasting fisheries interactions in two albatross populations A. Corbeau et al. 10.3354/meps13648
- Significant mixed layer nitrification in a natural iron‐fertilized bloom of the Southern Ocean F. Fripiat et al. 10.1002/2014GB005051
- Shifts in bacterial community composition associated with increased carbon cycling in a mosaic of phytoplankton blooms M. Landa et al. 10.1038/ismej.2015.105
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Short summary
Primary production, NO3- and NH4+ uptake, and nitrification rates were measured during the KEOPS 2 cruise (austral spring 2011) in the Kerguelen Plateau area. Natural iron fertilization stimulated primary production which is much higher in the fertilized areas compared to the HNLC site. We report high rates of nitrification in the mixed layer below the euphotic zone. We conclude that high productivity in deep mixing system stimulates the N cycle by increasing both assimilation and regeneration.
Primary production, NO3- and NH4+ uptake, and nitrification rates were measured during the KEOPS...
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