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KEOPS2: Kerguelen Ocean and Plateau Study 2 (2014)

Biogeochemistry

Biogeosciences, Special Issue (2014)
KEOPS2: Kerguelen Ocean and Plateau Study 2
Edited by S. Blain, I. Obernosterer, B. Queguiner, T. Trull, and G. Herndl

 

 

This issue includes the following 28 articles:

Production regime and associated N cycling in the vicinity of Kerguelen Island, Southern Ocean
A. J. Cavagna, F. Fripiat, M. Elskens, P. Mangion, L. Chirurgien, I. Closset, M. Lasbleiz, L. Florez-Leiva, D. Cardinal, K. Leblanc, C. Fernandez, D. Lefèvre, L. Oriol, S. Blain, B. Quéguiner, and F. Dehairs
Biogeosciences, 12, 6515-6528, doi:10.5194/bg-12-6515-2015, 2015

The biogeochemical structuring role of horizontal stirring: Lagrangian perspectives on iron delivery downstream of the Kerguelen Plateau
F. d'Ovidio, A. Della Penna, T. W. Trull, F. Nencioli, M.-I. Pujol, M.-H. Rio, Y.-H. Park, C. Cotté, M. Zhou, and S. Blain

Biogeosciences, 12, 5567-5581, doi:10.5194/bg-12-5567-2015, 2015

Mesozooplankton structure and functioning during the onset of the Kerguelen phytoplankton bloom during the KEOPS2 survey
F. Carlotti, M.-P. Jouandet, A. Nowaczyk, M. Harmelin-Vivien, D. Lefèvre, P. Richard, Y. Zhu, and M. Zhou
Biogeosciences, 12, 4543-4563, doi:10.5194/bg-12-4543-2015, 2015

Iron budgets for three distinct biogeochemical sites around the Kerguelen Archipelago (Southern Ocean) during the natural fertilisation study, KEOPS-2
A. R. Bowie, P. van der Merwe, F. Quéroué, T. Trull, M. Fourquez, F. Planchon, G. Sarthou, F. Chever, A. T. Townsend, I. Obernosterer, J.-B. Sallée, and S. Blain
Biogeosciences, 12, 4421-4445, doi:10.5194/bg-12-4421-2015, 2015

High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean)
F. Quéroué, G. Sarthou, H. F. Planquette, E. Bucciarelli, F. Chever, P. van der Merwe, D. Lannuzel, A. T. Townsend, M. Cheize, S. Blain, F. d'Ovidio, and A. R. Bowie
Biogeosciences, 12, 3869-3883, doi:10.5194/bg-12-3869-2015, 2015

Carbon export in the naturally iron-fertilized Kerguelen area of the Southern Ocean based on the 234Th approach
F. Planchon, D. Ballas, A.-J. Cavagna, A. R. Bowie, D. Davies, T. Trull, E. C. Laurenceau-Cornec, P. Van Der Merwe, and F. Dehairs
Biogeosciences, 12, 3831-3848, doi:10.5194/bg-12-3831-2015, 2015

Carbon, oxygen and biological productivity in the Southern Ocean in and out the Kerguelen plume: CARIOCA drifter results
L. Merlivat, J. Boutin, and F. d'Ovidio
Biogeosciences, 12, 3513-3524, doi:10.5194/bg-12-3513-2015, 2015

Export fluxes in a naturally iron-fertilized area of the Southern Ocean – Part 2: Importance of diatom resting spores and faecal pellets for export
M. Rembauville, S. Blain, L. Armand, B. Quéguiner, and I. Salter
Biogeosciences, 12, 3171-3195, doi:10.5194/bg-12-3171-2015, 2015

Export fluxes in a naturally iron-fertilized area of the Southern Ocean – Part 1: Seasonal dynamics of particulate organic carbon export from a moored sediment trap
M. Rembauville, I. Salter, N. Leblond, A. Gueneugues, and S. Blain
Biogeosciences, 12, 3153-3170, doi:10.5194/bg-12-3153-2015, 2015

Autonomous profiling float observations of the high-biomass plume downstream of the Kerguelen Plateau in the Southern Ocean
M. Grenier, A. Della Penna, and T. W. Trull
Biogeosciences, 12, 2707-2735, doi:10.5194/bg-12-2707-2015, 2015

Fe and C co-limitation of heterotrophic bacteria in the naturally fertilized region off the Kerguelen Islands
I. Obernosterer, M. Fourquez, and S. Blain
Biogeosciences, 12, 1983-1992, doi:10.5194/bg-12-1983-2015, 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, L. Florez-Leiva, V. Besoain, G. Sarthou, and C. Fernández
Biogeosciences, 12, 1925-1940, doi:10.5194/bg-12-1925-2015, 2015

Microbial iron uptake in the naturally fertilized waters in the vicinity of the Kerguelen Islands: phytoplankton–bacteria interactions
M. Fourquez, I. Obernosterer, D. M. Davies, T. W. Trull, and S. Blain
Biogeosciences, 12, 1893-1906, doi:10.5194/bg-12-1893-2015, 2015

Early spring mesopelagic carbon remineralization and transfer efficiency in the naturally iron-fertilized Kerguelen area
S. H. M. Jacquet, F. Dehairs, D. Lefèvre, A. J. Cavagna, F. Planchon, U. Christaki, L. Monin, L. André, I. Closset, and D. Cardinal
Biogeosciences, 12, 1713-1731, doi:10.5194/bg-12-1713-2015, 2015

Nitrogen cycling in the Southern Ocean Kerguelen Plateau area: evidence for significant surface nitrification from nitrate isotopic compositions
F. Dehairs, F. Fripiat, A.-J. Cavagna, T. W. Trull, C. Fernandez, D. Davies, A. Roukaerts, D. Fonseca Batista, F. Planchon, and M. Elskens
Biogeosciences, 12, 1459-1482, doi:10.5194/bg-12-1459-2015, 2015

Use of Ra isotopes to deduce rapid transfer of sediment-derived inputs off Kerguelen
V. Sanial, P. van Beek, B. Lansard, M. Souhaut, E. Kestenare, F. d'Ovidio, M. Zhou, and S. Blain
Biogeosciences, 12, 1415-1430, doi:10.5194/bg-12-1415-2015, 2015

Chemometric perspectives on plankton community responses to natural iron fertilisation over and downstream of the Kerguelen Plateau in the Southern Ocean
T. W. Trull, D. M. Davies, F. Dehairs, A.-J. Cavagna, M. Lasbleiz, E. C. Laurenceau-Cornec, F. d'Ovidio, F. Planchon, K. Leblanc, B. Quéguiner, and S. Blain
Biogeosciences, 12, 1029-1056, doi:10.5194/bg-12-1029-2015, 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. C. Laurenceau-Cornec, T. W. Trull, D. M. Davies, S. G. Bray, J. Doran, F. Planchon, F. Carlotti, M.-P. Jouandet, A.-J. Cavagna, A. M. Waite, and S. Blain
Biogeosciences, 12, 1007-1027, doi:10.5194/bg-12-1007-2015, 2015

Sourcing the iron in the naturally fertilised bloom around the Kerguelen Plateau: particulate trace metal dynamics
P. van der Merwe, A. R. Bowie, F. Quéroué, L. Armand, S. Blain, F. Chever, D. Davies, F. Dehairs, F. Planchon, G. Sarthou, A. T. Townsend, and T. W. Trull
Biogeosciences, 12, 739-755, doi:10.5194/bg-12-739-2015, 2015

Distributions and stoichiometry of dissolved nitrogen and phosphorus in the iron-fertilized region near Kerguelen (Southern Ocean)
S. Blain, J. Capparos, A. Guéneuguès, I. Obernosterer, and L. Oriol
Biogeosciences, 12, 623-635, doi:10.5194/bg-12-623-2015, 2015

Origin and fate of particulate and dissolved organic matter in a naturally iron-fertilized region of the Southern Ocean
L. Tremblay, J. Caparros, K. Leblanc, and I. Obernosterer
Biogeosciences, 12, 607-621, doi:10.5194/bg-12-607-2015, 2015

Validation of Thorpe-scale-derived vertical diffusivities against microstructure measurements in the Kerguelen region
Y.-H. Park, J.-H. Lee, I. Durand, and C.-S. Hong
Biogeosciences, 11, 6927-6937, doi:10.5194/bg-11-6927-2014, 2014

Enhanced viral production and virus-mediated mortality of bacterioplankton in a natural iron-fertilized bloom event above the Kerguelen Plateau
A. Malits, U. Christaki, I. Obernosterer, and M. G. Weinbauer
Biogeosciences, 11, 6841-6853, doi:10.5194/bg-11-6841-2014, 2014

Microbial food web dynamics during spring phytoplankton blooms in the naturally iron-fertilized Kerguelen area (Southern Ocean)
U. Christaki, D. Lefèvre, C. Georges, J. Colombet, P. Catala, C. Courties, T. Sime-Ngando, S. Blain, and I. Obernosterer
Biogeosciences, 11, 6739-6753, doi:10.5194/bg-11-6739-2014, 2014

Wind-induced upwelling in the Kerguelen Plateau region
S. T. Gille, M. M. Carranza, R. Cambra, and R. Morrow
Biogeosciences, 11, 6389-6400, doi:10.5194/bg-11-6389-2014, 2014

Pigments, elemental composition (C, N, P, and Si), and stoichiometry of particulate matter in the naturally iron fertilized region of Kerguelen in the Southern Ocean
M. Lasbleiz, K. Leblanc, S. Blain, J. Ras, V. Cornet-Barthaux, S. Hélias Nunige, and B. Quéguiner
Biogeosciences, 11, 5931-5955, doi:10.5194/bg-11-5931-2014, 2014

Protist community composition during early phytoplankton blooms in the naturally iron-fertilized Kerguelen area (Southern Ocean)
C. Georges, S. Monchy, S. Genitsaris, and U. Christaki
Biogeosciences, 11, 5847-5863, doi:10.5194/bg-11-5847-2014, 2014

Seasonal evolution of net and regenerated silica production around a natural Fe-fertilized area in the Southern Ocean estimated with Si isotopic approaches
I. Closset, M. Lasbleiz, K. Leblanc, B. Quéguiner, A.-J. Cavagna, M. Elskens, J. Navez, and D. Cardinal
Biogeosciences, 11, 5827-5846, doi:10.5194/bg-11-5827-2014, 2014

Taxon-specific responses of Southern Ocean diatoms to Fe enrichment revealed by synchrotron radiation FTIR microspectroscopy
O. Sackett, L. Armand, J. Beardall, R. Hill, M. Doblin, C. Connelly, J. Howes, B. Stuart, P. Ralph, and P. Heraud
Biogeosciences, 11, 5795-5808, doi:10.5194/bg-11-5795-2014, 2014

Rapid formation of large aggregates during the spring bloom of Kerguelen Island: observations and model comparisons
M.-P. Jouandet, G. A. Jackson, F. Carlotti, M. Picheral, L. Stemmann, and S. Blain
Biogeosciences, 11, 4393-4406, doi:10.5194/bg-11-4393-2014, 2014

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