Articles | Volume 12, issue 12
Biogeosciences, 12, 3869–3883, 2015
https://doi.org/10.5194/bg-12-3869-2015

Special issue: KEOPS2: Kerguelen Ocean and Plateau Study 2

Biogeosciences, 12, 3869–3883, 2015
https://doi.org/10.5194/bg-12-3869-2015

Research article 25 Jun 2015

Research article | 25 Jun 2015

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

F. Quéroué et al.

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Cited articles

Ardelan, M. V., Holm-Hansen, O., Hewes, C. D., Reiss, C. S., Silva, N. S., Dulaiova, H., Steinnes, E., and Sakshaug, E.: Natural iron enrichment around the Antarctic Peninsula in the Southern Ocean, Biogeosciences, 7, 11–25, https://doi.org/10.5194/bg-7-11-2010, 2010.
Armand, L. K., Cornet-Barthaux, V., Mosseri, J., and Quéguiner, B.: Late summer diatom biomass and community structure on and around the naturally iron-fertilised Kerguelen Plateau in the Southern Ocean, Deep-Sea Res. Pt. II, 55, 653–676, 2008.
Berthier, E., Le Bris, R., Mabileau, L., Testut, L., and Rémy, F.: Ice wastage on the Kerguelen Islands (49S, 69E) between 1963 and 2006, J. Geophys. Res.-Earth, 114, F03005, https://doi.org/10.1029/2008JF001192, 2009.
Blain, S., Sarthou, G., and Laan, P.: Distribution of DFe during the natural iron-fertilization experiment KEOPS, Deep-Sea Res. Pt. II, 55, 594–605, https://doi.org/10.1016/j.dsr2.2007.12.028, 2008.
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Short summary
Dissolved Fe (dFe) concentrations were measured in the vicinity of the Kerguelen Islands. Direct island runoff, glacial melting, and resuspended sediments were identified as important inputs of dFe that could potentially fertilise the northern part of the plateau. Overall, heterogeneous sources of Fe over and off the plateau, in addition to strong variability in Fe supply by vertical or horizontal transport, may explain the high variability in dFe concentrations observed during this study.
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