Factors controlling the depth habitat of planktonic foraminifera in the subtropical eastern North Atlantic

Rebotim, Andreia; Voelker, Antje H. L.; Jonkers, Lukas; Waniek, Joanna J.; Meggers, Helge; Schiebel, Ralf; Fraile, Igaratza; Schulz, Michael; Kucera, Michal

doi:https://doi.org/10.5194/bg-14-827-2017

Articles | Volume 14, issue 4

https://doi.org/10.5194/bg-14-827-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-14-827-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 4

Research article

|

24 Feb 2017

Research article |

| 24 Feb 2017

Factors controlling the depth habitat of planktonic foraminifera in the subtropical eastern North Atlantic

Andreia Rebotim, Antje H. L. Voelker, Lukas Jonkers, Joanna J. Waniek, Helge Meggers, Ralf Schiebel, Igaratza Fraile, Michael Schulz, and Michal Kucera

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Final revised paper (published on 24 Feb 2017)
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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: 'Review of „Factors controlling the depth habitat of planktonic foraminifera in the subtropical eastern North Atlantic“ by Rebotim et al.', Jelle Bijma, 05 Oct 2016
- AC1: 'Answer to Referee Jelle Bijma', Andreia Rebotim, 05 Dec 2016
RC2: 'Referee Comment on "Factors controlling the depth habitat of planktonic foraminifera in the subtropical eastern North Atlantic"', P. Graham Mortyn, 16 Oct 2016
- AC2: 'Answer to Referee Graham Mortyn', Andreia Rebotim, 05 Dec 2016
EC1: 'invitation for revision of your manuscript', Lennart de Nooijer, 22 Nov 2016
- AC3: 'Answer to Associate Editor', Andreia Rebotim, 05 Dec 2016
EC2: 'AE comments 2', Lennart de Nooijer, 17 Jan 2017

Peer-review completion

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

ED: Publish subject to minor revisions (Editor review) (17 Jan 2017) by Lennart de Nooijer

Dear Dr Rebotim and co-authors,

Thank you very much for uploading your answers to the reviews by Drs Bijma and Mortyn. I think you have satisfyingly replied to their comments and improved your manuscript accordingly. Therefore, it is fit for publication in Biogeosciences after incorporating some minor issues I came across when reading the second version of your manuscript. Please incorporate them along with the changes you suggested yourself before uploading your final version.

I think it is good to incorporate (briefly) the reply to Dr Bijma’s first comment (i.e. the use of a size fraction for which the mortality is in the manuscript. For example, in the beginning of the discussion (page 11, somewhere between lines 15 and 25).
Page 2, line 18: this sentence “...in the plankton (Berger, 1969.....” seems incomplete.
Page 2, line 26: consider changing “...mechanism, with buoyancy being regulated by...” into “...mechanism, which is primarily regulated by...”
Page 2, line 28: “not sufficiently known” reads better as “not fully understood”
Page 3, line 5: the word “simulating” is slightly confusing here. Consider changing into: “...internal waves, leading to apparent vertical migration...”
Page 3, line 22: “...in many species...” should be “...among species...”
Page 5, line 27: I guess in some cases it was a midi- and in others a maxi-version of the Hydrobios net. Then it would be better to state “...either a Midi- or Maxi multiple closing net...”
Page 6, line 25: please specify “satellite values”. Values for what?
Page 6, line 31: please specify “the vertical profile for each species”. Their abundance?
Page 7, line 14: replace “ones” with “variables”.
Page 9, line 9: what does “seem to vary in proportion to their ALD” mean?
Page 9, line 21: replace “to a certain degree due to the” by: “caused by an”
Page 12, line 15: “...it could also represent...” should be a separate sentence.
Page 12, line 17: delete “had”
Page 13, line 14: insert “thereby” after the second “and”.
Page 13, line 28: insert a dot after “al”
Throughout the discussion: ALDs “below” or “above” a certain value can be confusing. Please refer to ALDs that are shallower or deeper than x meters.
Page 18, line 25: replace “above” by “more than”
Page 22, lines 11-13: this sentence is unclear. Equilibrium with respect to what? I guess this mainly refers to oxygen isotopes, because e.g. Mg/Ca is never said to be “in equilibrium” with that of seawater (although the reference to Nürnberg suggests that this sentence also refers to e.g. Mg-incorporation).
Page 22, line 26: complexity in what?
Page 22, line 29-30: what is the consequence of the (potentially) variable concentrations of pigments?

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AR by Andreia Rebotim on behalf of the Authors (24 Jan 2017)

ED: Publish as is (26 Jan 2017) by Lennart de Nooijer

AR by Andreia Rebotim on behalf of the Authors (27 Jan 2017)

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Short summary

Planktonic foraminifera species depth habitat remains poorly constrained and the existing conceptual models are not sufficiently tested by observational data. Here we present a synthesis of living planktonic foraminifera abundance data in the subtropical eastern North Atlantic from vertical plankton tows. We also test potential environmental factors influencing the species depth habitat and investigate yearly or lunar migration cycles. These findings may impact paleoceanographic studies.