Impact of ocean acidification on Arctic phytoplankton blooms and dimethyl sulfide concentration under simulated ice-free and under-ice conditions

Hussherr, Rachel; Levasseur, Maurice; Lizotte, Martine; Tremblay, Jean-Éric; Mol, Jacoba; Thomas, Helmuth; Gosselin, Michel; Starr, Michel; Miller, Lisa A.; Jarniková, Tereza; Schuback, Nina; Mucci, Alfonso

doi:https://doi.org/10.5194/bg-14-2407-2017

Articles | Volume 14, issue 9

https://doi.org/10.5194/bg-14-2407-2017

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

Special issue:

NETCARE (Network on Aerosols and Climate: Addressing Key Uncertainties...

https://doi.org/10.5194/bg-14-2407-2017

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

Articles | Volume 14, issue 9

Research article

|

12 May 2017

Research article |

| 12 May 2017

Impact of ocean acidification on Arctic phytoplankton blooms and dimethyl sulfide concentration under simulated ice-free and under-ice conditions

Rachel Hussherr, Maurice Levasseur, Martine Lizotte, Jean-Éric Tremblay, Jacoba Mol, Helmuth Thomas, Michel Gosselin, Michel Starr, Lisa A. Miller, Tereza Jarniková, Nina Schuback, and Alfonso Mucci

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Final revised paper (published on 12 May 2017)
Preprint (discussion started on 06 Dec 2016)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Hussherr et al. bg-2016-501', Anonymous Referee #1, 09 Jan 2017
- RC2: 'Impact of OA on Arctic phytoplankton', Anonymous Referee #2, 22 Jan 2017
  - AC2: 'Response to referee #2 by Rachel Hussherr', Rachel Hussherr, 02 Mar 2017
- AC1: 'Response to referee #1 by Rachel Hussherr', Rachel Hussherr, 02 Mar 2017

Peer-review completion

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

ED: Publish subject to minor revisions (Editor review) (19 Mar 2017) by Laurent Bopp

AR by Rachel Hussherr on behalf of the Authors (23 Mar 2017) Author's response Manuscript

ED: Publish as is (06 Apr 2017) by Laurent Bopp

AR by Rachel Hussherr on behalf of the Authors (06 Apr 2017)

Short summary

This study assesses the impact of ocean acidification on phytoplankton and its synthesis of the climate-active gas dimethyl sulfide (DMS), as well as its modulation, by two contrasting light regimes in the Arctic. The light regimes tested had no significant impact on either the phytoplankton or DMS concentration, whereas both variables decreased linearly with the decrease in pH. Thus, a rapid decrease in surface water pH could alter the algal biomass and inhibit DMS production in the Arctic.