Articles | Volume 15, issue 16
https://doi.org/10.5194/bg-15-4973-2018
https://doi.org/10.5194/bg-15-4973-2018
Research article
 | 
22 Aug 2018
Research article |  | 22 Aug 2018

Mechanisms of dissolved and labile particulate iron supply to shelf waters and phytoplankton blooms off South Georgia, Southern Ocean

Christian Schlosser, Katrin Schmidt, Alfred Aquilina, William B. Homoky, Maxi Castrillejo, Rachel A. Mills, Matthew D. Patey, Sophie Fielding, Angus Atkinson, and Eric P. Achterberg

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (05 Mar 2018) by Laurent Bopp
AR by Christian Schlosser on behalf of the Authors (24 Apr 2018)
ED: Referee Nomination & Report Request started (07 May 2018) by Laurent Bopp
RR by Anonymous Referee #1 (25 May 2018)
ED: Reconsider after major revisions (13 Jun 2018) by Laurent Bopp
AR by Christian Schlosser on behalf of the Authors (18 Jun 2018)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (02 Jul 2018) by Laurent Bopp
RR by Anonymous Referee #1 (18 Jul 2018)
ED: Publish subject to technical corrections (19 Jul 2018) by Laurent Bopp
AR by Christian Schlosser on behalf of the Authors (19 Jul 2018)  Author's response   Manuscript 
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Short summary
Iron (Fe) emanating from the South Georgia shelf system fuels large phytoplankton blooms downstream of the island. However, the actual supply mechanisms of Fe are unclear. We found that shelf-sediment-derived iron and iron released from Antarctic krill control the Fe distribution in the shelf waters around South Georgia. The majority of the Fe appears to be derived from recycling of Fe-enriched particles that are transported with the water masses into the bloom region.
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