Reduced growth with increased quotas of particulate organic and inorganic carbon in the coccolithophore <i>Emiliania huxleyi</i> under future ocean climate change conditions

Zhang, Yong; Collins, Sinéad; Gao, Kunshan

doi:https://doi.org/10.5194/bg-17-6357-2020

Articles | Volume 17, issue 24

https://doi.org/10.5194/bg-17-6357-2020

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

https://doi.org/10.5194/bg-17-6357-2020

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

Articles | Volume 17, issue 24

Research article

|

16 Dec 2020

Research article |

| 16 Dec 2020

Reduced growth with increased quotas of particulate organic and inorganic carbon in the coccolithophore Emiliania huxleyi under future ocean climate change conditions

Yong Zhang, Sinéad Collins, and Kunshan Gao

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Final revised paper (published on 16 Dec 2020)
Supplement to the final revised paper
Preprint (discussion started on 26 Jun 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Zhang et al 2020 - Reduced growth with increased quotas of particulate organic and inorganic carbon in E. huxleyi under future ocean climate change conditions', Anonymous Referee #1, 18 Aug 2020
- AC1: 'Responses to comments of BG-2020-213', Kunshan Gao, 02 Oct 2020
RC2: 'Interactive comments on “Reduced growth with increased quotas of particulate organic and inorganic carbon in the coccolithophore Emiliania huxleyi under future ocean climate change conditions” by Zhang et al.', Anonymous Referee #2, 05 Sep 2020
- AC1: 'Responses to comments of BG-2020-213', Kunshan Gao, 02 Oct 2020
AC2: 'Supplemental Information of BG-2020-213', Kunshan Gao, 02 Oct 2020
AC3: 'revised manuscript of BG-2020-213', Kunshan Gao, 02 Oct 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (09 Oct 2020) by Peter Landschützer

AR by Kunshan Gao on behalf of the Authors (10 Oct 2020) Author's response Manuscript

ED: Publish as is (26 Oct 2020) by Peter Landschützer

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Short summary

Our results show that ocean acidification, warming, increased light exposure and reduced nutrient availability significantly reduce the growth rate but increase particulate organic and inorganic carbon in cells in the coccolithophore Emiliania huxleyi, indicating biogeochemical consequences of future ocean changes on the calcifying microalga. Concurrent changes in nutrient concentrations and pCO₂ levels predominantly affected E. huxleyi growth, photosynthetic carbon fixation and calcification.