High denitrification and anaerobic ammonium oxidation contributes to net nitrogen loss in a seagrass ecosystem in the central Red Sea

Garcias-Bonet, Neus; Fusi, Marco; Ali, Muhammad; Shaw, Dario R.; Saikaly, Pascal E.; Daffonchio, Daniele; Duarte, Carlos M.

doi:https://doi.org/10.5194/bg-15-7333-2018

Articles | Volume 15, issue 23

https://doi.org/10.5194/bg-15-7333-2018

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

https://doi.org/10.5194/bg-15-7333-2018

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

Articles | Volume 15, issue 23

Research article

|

11 Dec 2018

Research article |

| 11 Dec 2018

High denitrification and anaerobic ammonium oxidation contributes to net nitrogen loss in a seagrass ecosystem in the central Red Sea

Neus Garcias-Bonet, Marco Fusi, Muhammad Ali, Dario R. Shaw, Pascal E. Saikaly, Daniele Daffonchio, and Carlos M. Duarte

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Final revised paper (published on 11 Dec 2018)
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Preprint (discussion started on 19 Jul 2018)
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Interactive discussion

Status: closed

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

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RC1: 'Great contribution to seagrass biogeochemistry literature, but needs discussion of ARA issues', Anonymous Referee #1, 25 Aug 2018
- AC1: 'Reply to Anonymous Referee #1', Neus Garcias-Bonet, 09 Oct 2018
RC2: 'Review', Anonymous Referee #2, 14 Sep 2018
- AC2: 'Reply to Anonymous Referee #2', Neus Garcias-Bonet, 09 Oct 2018
RC3: 'Review', Anonymous Referee #3, 20 Sep 2018
- AC3: 'Reply to Anonymous Referee #3', Neus Garcias-Bonet, 09 Oct 2018

Peer-review completion

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

ED: Reconsider after major revisions (11 Oct 2018) by S. Wajih A. Naqvi

AR by Neus Garcias-Bonet on behalf of the Authors (30 Oct 2018)

ED: Referee Nomination & Report Request started (01 Nov 2018) by S. Wajih A. Naqvi

RR by Anonymous Referee #2 (08 Nov 2018)

RR by Anonymous Referee #3 (21 Nov 2018)

ED: Publish as is (27 Nov 2018) by S. Wajih A. Naqvi

AR by Neus Garcias-Bonet on behalf of the Authors (28 Nov 2018) Manuscript

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Short summary

Nitrogen (N) loads are detrimental for coastal ecosystems. We measured the balance between N losses and gains in a Red Sea seagrass. The N loss was higher than N₂ fixed, pointing out the importance of seagrasses in removing N from the system. N₂ losses increased with temperature. Therefore, the forecasted warming could increase the N₂ flux to the atmosphere, potentially impacting seagrass productivity and their capacity to mitigate climate change but also enhancing their potential N removal.