Seasonal development of iron limitation in the sub-Antarctic zone

Ryan-Keogh, Thomas J.; Thomalla, Sandy J.; Mtshali, Thato N.; van Horsten, Natasha R.; Little, Hazel J.

doi:https://doi.org/10.5194/bg-15-4647-2018

Articles | Volume 15, issue 14

https://doi.org/10.5194/bg-15-4647-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-15-4647-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 14

Research article

|

30 Jul 2018

Research article |

| 30 Jul 2018

Seasonal development of iron limitation in the sub-Antarctic zone

Thomas J. Ryan-Keogh, Sandy J. Thomalla, Thato N. Mtshali, Natasha R. van Horsten, and Hazel J. Little

Download

Final revised paper (published on 30 Jul 2018)
Supplement to the final revised paper
Preprint (discussion started on 08 Jan 2018)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Review of ‘Seasonal development of iron limitation in the sub-Antarctic zone’ by Ryan-Keogh et al.', Anonymous Referee #1, 19 Feb 2018
- AC1: 'Response to reviewer 1, manuscript bg-2017-551', Thomas Ryan-Keogh, 18 May 2018
RC2: 'Anonymous Referee #2', Anonymous Referee #2, 24 Apr 2018
- AC2: 'Response to reviewer 2, manuscript bg-2017-551', Thomas Ryan-Keogh, 18 May 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (29 May 2018) by Gerhard Herndl

AR by Thomas Ryan-Keogh on behalf of the Authors (03 Jun 2018)

ED: Publish as is (29 Jun 2018) by Gerhard Herndl

AR by Thomas Ryan-Keogh on behalf of the Authors (06 Jul 2018) Manuscript

Download

Article (2918 KB)
Full-text XML

Short summary

The availability of iron in the Southern Ocean constrains the overall extent and magnitude of the phytoplankton bloom. Uncertainty remains over the dominant supply mechanisms, which are expected to be altered by climate change. Nutrient addition experiments confirm that iron limitation is seasonal in nature, with increased responses to iron addition in late summer. This is driven by variability in the supply mechanisms across the growing season, which fail to meet the phytoplankton demand.