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Akademický článek

The role of diatom resting spores in pelagic–benthic coupling in the Southern Ocean

Autor: M. Rembauville, S. Blain, C. Manno, G. Tarling, A. Thompson, G. Wolff, I. Salter

Publikováno v: Biogeosciences, Vol 15, Pp 3071-3084 (2018)

Natural iron fertilization downstream of Southern Ocean island plateaus supports large phytoplankton blooms and promotes carbon export from the mixed layer. In addition to sequestering atmospheric CO2, the biological carbon pump also supplies orga

Externí odkaz: https://doaj.org/article/fbda7048b6534a818d369e15f359d392

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Akademický článek

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Akademický článek

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Akademický článek

Unveiling the Si cycle using isotopes in an iron-fertilized zone of the Southern Ocean: from mixed-layer supply to export

Autor: I. Closset, D. Cardinal, M. Rembauville, F. Thil, S. Blain

Publikováno v: Biogeosciences, Vol 13, Iss 21, Pp 6049-6066 (2016)

A massive diatom bloom forms annually in the surface waters of the naturally iron-fertilized Kerguelen Plateau (Southern Ocean). In this study, silicon isotopic signatures (δ30Si) of silicic acid (DSi) and suspended biogenic silica (BSi) were invest

Externí odkaz: https://doaj.org/article/7504c6aba9bb4324aa79016cb935fd17

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Akademický článek

Production regime and associated N cycling in the vicinity of Kerguelen Island, Southern Ocean

Autor: 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, F. Dehairs

Publikováno v: Biogeosciences, Vol 12, Iss 21, Pp 6515-6528 (2015)

Although the Southern Ocean is considered a high-nutrient, low-chlorophyll (HNLC) area, massive and recurrent blooms are observed over and downstream of the Kerguelen Plateau. This mosaic of blooms is triggered by a higher iron supply resulting from

Externí odkaz: https://doaj.org/article/79888a2791ab4bebba71a56c23e453fe

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Akademický článek

The biogeochemical structuring role of horizontal stirring: Lagrangian perspectives on iron delivery downstream of the Kerguelen Plateau

Autor: F. d'Ovidio, A. Della Penna, T. W. Trull, F. Nencioli, M.-I. Pujol, M.-H. Rio, Y.-H. Park, C. Cotté, M. Zhou, S. Blain

Publikováno v: Biogeosciences, Vol 12, Iss 19, Pp 5567-5581 (2015)

Field campaigns are instrumental in providing ground truth for understanding and modeling global ocean biogeochemical budgets. A survey however can only inspect a fraction of the global oceans, typically a region hundreds of kilometers wide for a tem

Externí odkaz: https://doaj.org/article/b819fb094a3c4bed931e27a3aee0a950

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Akademický článek

Iron budgets for three distinct biogeochemical sites around the Kerguelen Archipelago (Southern Ocean) during the natural fertilisation study, KEOPS-2

Autor: 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, S. Blain

Publikováno v: Biogeosciences, Vol 12, Iss 14, Pp 4421-4445 (2015)

Iron availability in the Southern Ocean controls phytoplankton growth, community composition and the uptake of atmospheric CO2 by the biological pump. The KEOPS-2 (KErguelen Ocean and Plateau compared Study 2) "process study", took place around the K

Externí odkaz: https://doaj.org/article/49437021f31344d5ac65c7411bcaa3a6

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Akademický článek

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

Autor: M. Rembauville, I. Salter, N. Leblond, A. Gueneugues, S. Blain

Publikováno v: Biogeosciences, Vol 12, Pp 3153-3170 (2015)

A sediment trap moored in the naturally iron-fertilized Kerguelen Plateau in the Southern Ocean provided an annual record of particulate organic carbon and nitrogen fluxes at 289 m. At the trap deployment depth, current speeds were typically low (

Externí odkaz: https://doaj.org/article/4fef684294e949e3bdb7c8bad580ab37

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Akademický článek

Export fluxes in a naturally iron-fertilized area of the Southern Ocean – Part 2: Importance of diatom resting spores and faecal pellets for export

Autor: M. Rembauville, S. Blain, L. Armand, B. Quéguiner, I. Salter

Publikováno v: Biogeosciences, Vol 12, Pp 3171-3195 (2015)

The biological composition of the material exported to a moored sediment trap located under the winter mixed layer of the naturally fertilized Kerguelen Plateau in the Southern Ocean was studied over an annual cycle. Despite iron availability in s

Externí odkaz: https://doaj.org/article/f3f18c0bcc6c4316830d59ea62cad996

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Akademický článek

High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean)

Autor: 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, A. R. Bowie

Publikováno v: Biogeosciences, Vol 12, Iss 12, Pp 3869-3883 (2015)

Dissolved Fe (dFe) concentrations were measured in the upper 1300 m of the water column in the vicinity of the Kerguelen Islands as part of the second KErguelen Ocean Plateau compared Study (KEOPS2). Concentrations ranged from 0.06 nmol L−1 in offs

Externí odkaz: https://doaj.org/article/688a5065f1724de0964578bb5c25a940

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