N and P as ultimate and proximate limiting nutrients in the northern Gulf of Mexico: implications for hypoxia reduction strategies

Fennel, Katja; Laurent, Arnaud

doi:https://doi.org/10.5194/bg-15-3121-2018

Articles | Volume 15, issue 10

https://doi.org/10.5194/bg-15-3121-2018

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

https://doi.org/10.5194/bg-15-3121-2018

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

Articles | Volume 15, issue 10

Research article

|

24 May 2018

Research article |

| 24 May 2018

N and P as ultimate and proximate limiting nutrients in the northern Gulf of Mexico: implications for hypoxia reduction strategies

Katja Fennel and Arnaud Laurent

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Final revised paper (published on 24 May 2018)
Preprint (discussion started on 06 Nov 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review comments', Anonymous Referee #1, 07 Mar 2018
- AC1: 'Response to Reviewer #1's comments', Katja Fennel, 03 Apr 2018
RC2: 'Review of manuscript', Anonymous Referee #2, 08 Mar 2018
- AC2: 'Response to Reviewer #2's comments', Katja Fennel, 03 Apr 2018
RC3: 'Review of Fennel and Laurent', Anonymous Referee #3, 14 Mar 2018
- AC3: 'Response to Reviewer #3's comments', Katja Fennel, 03 Apr 2018

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (10 Apr 2018) by Gerhard Herndl

AR by Katja Fennel on behalf of the Authors (10 Apr 2018) Author's response Manuscript

ED: Publish as is (04 May 2018) by Gerhard Herndl

AR by Katja Fennel on behalf of the Authors (04 May 2018) Manuscript

Short summary

Increasing human-derived nutrient inputs to coastal oceans lead to spreading dead zones around the world. Here a biogeochemical model for the northern Gulf of Mexico, where nutrients from the Mississippi River create the largest dead zone in North American coastal waters, is used for the first time to show the effects of single and dual nutrient reductions of nitrogen (N) and phosphorus (P). Significant reductions in N or N&P load would be required to significantly reduce hypoxia in this system.