Bacterial degradation activity in the eastern tropical South Pacific oxygen minimum zone

Maßmig, Marie; Lüdke, Jan; Krahmann, Gerd; Engel, Anja

doi:https://doi.org/10.5194/bg-17-215-2020

Articles | Volume 17, issue 1

https://doi.org/10.5194/bg-17-215-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Ocean deoxygenation: drivers and consequences – past, present...

https://doi.org/10.5194/bg-17-215-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 1

Research article

|

17 Jan 2020

Research article |

| 17 Jan 2020

Bacterial degradation activity in the eastern tropical South Pacific oxygen minimum zone

Marie Maßmig, Jan Lüdke, Gerd Krahmann, and Anja Engel

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Final revised paper (published on 17 Jan 2020)
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Preprint (discussion started on 17 Jun 2019)
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Interactive discussion

Status: closed

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

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- Supplement

SC1: 'Peptidase Activity in the Cariaco Basin', Gordon Taylor, 17 Jun 2019
- AC1: 'Response to Gordon Taylor', Anja Engel, 18 Jun 2019
  - SC2: 'Peptidase Activity in the Cariaco Basin', Gordon Taylor, 18 Jun 2019
RC1: 'review BG-2019-237', Anonymous Referee #1, 24 Jul 2019
- AC2: 'Response to Anonymous Referee 1', Anja Engel, 13 Sep 2019
RC2: 'Review of Maßmig et al.', Anonymous Referee #2, 20 Aug 2019
- AC3: 'Response to Anonymous Referee 2', Anja Engel, 13 Sep 2019

Peer-review completion

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

ED: Reconsider after major revisions (22 Sep 2019) by S. Wajih A. Naqvi

AR by Anja Engel on behalf of the Authors (25 Oct 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (28 Oct 2019) by S. Wajih A. Naqvi

RR by Anonymous Referee #1 (14 Nov 2019)

ED: Publish subject to minor revisions (review by editor) (17 Nov 2019) by S. Wajih A. Naqvi

AR by Anja Engel on behalf of the Authors (24 Nov 2019) Author's response Manuscript

ED: Publish as is (01 Dec 2019) by S. Wajih A. Naqvi

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Short summary

Little is known about the rates of bacterial element cycling in oxygen minimum zones (OMZs). We measured bacterial production and rates of extracellular hydrolytic enzymes at various in situ oxygen concentrations in the OMZ off Peru. Our field data show unhampered bacterial activity at low oxygen concentrations. Meanwhile bacterial degradation of organic matter substantially contributed to the formation of the OMZ.