Macroalgae contribute to nested mosaics of pH variability in a subarctic fjord

Krause-Jensen, D.; Duarte, C. M.; Hendriks, I. E.; Meire, L.; Blicher, M. E.; Marbà, N.; Sejr, M. K.

doi:https://doi.org/10.5194/bg-12-4895-2015

Articles | Volume 12, issue 16

https://doi.org/10.5194/bg-12-4895-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-12-4895-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 16

Research article

|

19 Aug 2015

Research article |

| 19 Aug 2015

Macroalgae contribute to nested mosaics of pH variability in a subarctic fjord

D. Krause-Jensen, C. M. Duarte, I. E. Hendriks, L. Meire, M. E. Blicher, N. Marbà, and M. K. Sejr

Download

Final revised paper (published on 19 Aug 2015)
Preprint (discussion started on 27 Mar 2015)

Interactive discussion

Status: closed

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

- Printer-friendly version

- Supplement

RC C971: 'Review of "Macroalgae contribute to nested mosaics of pH variability in a sub-Arctic fjord"', Anonymous Referee #1, 01 Apr 2015
- AC C2981: 'Please see the reply in the attached file', D. Krause-Jensen, 20 Jun 2015
RC C1816: 'Referee Comment on Macroalgae contribute to nested mosaics of pH variability in a sub-Arctic fjord', Anonymous Referee #2, 29 Apr 2015
- AC C2982: 'Reply to reviewer 2', D. Krause-Jensen, 20 Jun 2015

Peer-review completion

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

ED: Publish subject to minor revisions (Editor review) (29 Jun 2015) by Jean-Pierre Gattuso

AR by D. Krause-Jensen on behalf of the Authors (01 Jul 2015)

ED: Publish subject to minor revisions (Editor review) (20 Jul 2015) by Jean-Pierre Gattuso

Dear Author,

Thank you for providing a revised version of your manuscript submitted to Biogeosciences, which can be accepted for publication after minor revision (see below). When submitting the revised version, please let me know which of the changes were not implemented, if any, and why. This will speed up final acceptance.

I look forward to seeing this paper published and thank you for considering Biogeosciences to publish these very interesting results.

Best regards,
Jean-Pierre Gattuso

-----------------------------------------------------------------------------
- abbreviate minutes by min
- use a dot rather than a comma as decimal separator
- use x rather than * as multiplier sign
- 320, 934, 941, axis of Fig. 4 and elsewhere: you have not measured light intensity but irradiance
- throughout the apper, spp should not be in italics
- do not use plural for genus names (Ulva rather than Ulvas)
- try to avoid jargon such as OA, use ocean acidification instead. In contrast to the request of one of the reviewers, feel also free to sue diffusive boundary layer!
- Is it the light attenuation coefficient that you are reporting? Unit should be m-1, right?
- 143: open water pH
- 169: 1-3 m
- 184: vertical profiles were performed
- both NBS and NIST are used for buffers. Please use the same term throughout the paper
- 216: K1 and K2, K in italics and 1 and 2 as subscripts
- 242 and elsewhere: SeaFET
- 251:no need to indicate the serial number of this instrument
- 255: in situ
- 276: spp not in italics
- 319: min
- 406: "Tidal changes in water masses"?
- 415 forward: isn't it the other way around: lower omega at night than during the day?
- 429: perhaps indicate a typical range?
- I would move line 449 to line 324 because not only data from section 3.4 are archived but all data, right?
- 537: pH changes of
- 546: large supersaturation levels
- 565 and elsewhere: pH range
- 592: acidic means less than 7.0, which you have not measured. Hence, use low pH instead.
- 928: Kobbefjord on 19 April
- Fig. 2: the isolines of pH will be very difficult to read in print. You should consider increasing the font size (likewise of the axes). This also applies to other figures which would benefit from an increase in size in order to be of great quality when scaled down.

Hide

AR by D. Krause-Jensen on behalf of the Authors (04 Aug 2015) Author's response Manuscript

ED: Publish as is (04 Aug 2015) by Jean-Pierre Gattuso

AR by D. Krause-Jensen on behalf of the Authors (10 Aug 2015)

Short summary

The Arctic Ocean is considered the most vulnerable ecosystem to ocean acidification (OA), but very little information is available on natural variability of pH in the Arctic coastal zone. We report pH variability at various scales in a Greenland fjord. Variability ranged up to 0.2-0.3 pH units horizontally and vertically in the fjord, between seasons and on diel basis in kelp forests and was extreme in tidal pools. Overall, primary producers played a fundamental role in producing mosaics of pH.