Ammonium excretion and oxygen respiration of tropical copepods and  euphausiids exposed to oxygen minimum zone conditions

Kiko, Rainer; Hauss, Helena; Buchholz, Friedrich; Melzner, Frank

doi:https://doi.org/10.5194/bg-13-2241-2016

Articles | Volume 13, issue 8

https://doi.org/10.5194/bg-13-2241-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Low oxygen environments in marine, fresh and estuarine...

https://doi.org/10.5194/bg-13-2241-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 8

Research article

|

19 Apr 2016

Research article |

| 19 Apr 2016

Ammonium excretion and oxygen respiration of tropical copepods and euphausiids exposed to oxygen minimum zone conditions

Rainer Kiko, Helena Hauss, Friedrich Buchholz, and Frank Melzner

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Final revised paper (published on 19 Apr 2016)
Preprint (discussion started on 28 Oct 2015)

Interactive discussion

Status: closed

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

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RC C7865: 'full peer review', Anonymous Referee #1, 23 Nov 2015
RC C8078: 'Review of Kiko et al.', Anonymous Referee #2, 29 Nov 2015
AC C9212: 'Final author comments', R. Kiko, 18 Jan 2016

Peer-review completion

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

ED: Publish subject to minor revisions (Editor review) (05 Feb 2016) by Marilaure Grégoire

AR by Rainer Kiko on behalf of the Authors (08 Mar 2016) Author's response Manuscript

ED: Publish as is (25 Mar 2016) by Marilaure Grégoire

AR by Rainer Kiko on behalf of the Authors (31 Mar 2016)

Short summary

The diel vertical migration of zooplankton and nekton results in an active export of carbon and nitrogen from the oceans surface layer. In vast areas of the ocean the daytime distribution depth of migrating organisms corresponds to the core of an oxygen minimum zone (OMZ). We show that exposure to OMZ conditions can result in a strong depression of respiration and ammonium excretion in zooplankton, a fact that needs to be considered when calculating carbon and nitrogen fluxes in OMZ regions.