Articles | Volume 18, issue 21
Biogeosciences, 18, 5871–5889, 2021
https://doi.org/10.5194/bg-18-5871-2021

Special issue: Atmospheric deposition in the low-nutrient-low-chlorophyll...

Biogeosciences, 18, 5871–5889, 2021
https://doi.org/10.5194/bg-18-5871-2021

Research article 04 Nov 2021

Research article | 04 Nov 2021

Phosphorus cycling in the upper waters of the Mediterranean Sea (PEACETIME cruise): relative contribution of external and internal sources

Elvira Pulido-Villena et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on bg-2021-94', Anonymous Referee #1, 18 May 2021
  • RC2: 'Comment on bg-2021-94', Maurizio Ribera d'Alcala', 19 May 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (27 Jul 2021) by Silvia Becagli
ED: Publish subject to minor revisions (review by editor) (23 Aug 2021) by Christine Klaas(Co-Editor-in-Chief)
AR by Elvira Pulido-Villena on behalf of the Authors (02 Sep 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (13 Sep 2021) by Silvia Becagli
ED: Publish subject to minor revisions (review by editor) (22 Sep 2021) by Christine Klaas(Co-Editor-in-Chief)
AR by Elvira Pulido-Villena on behalf of the Authors (23 Sep 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to minor revisions (review by editor) (28 Sep 2021) by Christine Klaas
ED: Publish subject to minor revisions (review by editor) (28 Sep 2021) by Christine Klaas(Co-Editor-in-Chief)
ED: Publish subject to technical corrections (05 Oct 2021) by Christine Klaas
ED: Publish subject to technical corrections (05 Oct 2021) by Christine Klaas(Co-Editor-in-Chief)
AR by Elvira Pulido-Villena on behalf of the Authors (05 Oct 2021)  Author's response    Manuscript
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Short summary
We report on phosphorus dynamics in the surface layer of the Mediterranean Sea. Highly sensitive phosphate measurements revealed vertical gradients above the phosphacline. The relative contribution of diapycnal fluxes to total external supply of phosphate to the mixed layer decreased towards the east, where atmospheric deposition dominated. Taken together, external sources of phosphate contributed little to total supply, which was mainly sustained by enzymatic hydrolysis of organic phosphorus.
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