Articles | Volume 22, issue 2
https://doi.org/10.5194/bg-22-499-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-22-499-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Jan 2025
Research article |
| 28 Jan 2025
| 28 Jan 2025
Assessing the impacts of simulated ocean alkalinity enhancement on viability and growth of nearshore species of phytoplankton
Jessica L. Oberlander
CORRESPONDING AUTHOR
Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, N3H 4R2, Canada
Mackenzie E. Burke
Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, N3H 4R2, Canada
Cat A. London
Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, N3H 4R2, Canada
Hugh L. MacIntyre
Department of Oceanography, Dalhousie University, Halifax, Nova Scotia, N3H 4R2, Canada
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Cited
18 citations as recorded by crossref.
- Resilience to Alkalinity Perturbations Reveals Ecosystem Stability under Ocean Alkalinity Enhancement Y. Liu et al. https://doi.org/10.34133/olar.0157
- Ocean alkalinity enhancement in an estuary M. Ho et al. https://doi.org/10.3389/fclim.2025.1665329
- Resilience of the gelatinous zooplankton species Oikopleura dioica to ocean alkalinity enhancement A. Bhaumik et al. https://doi.org/10.1371/journal.pone.0344503
- Alkaline mineral dissolution can impair embryonic development in the Pacific oyster (Magallana gigas), raising caution for ocean alkalinity enhancement F. Pernet et al. https://doi.org/10.1093/icesjms/fsag011
- Anchoring permits kelp to acquire an ecological niche in coastal oceans: A model analysis M. Gao et al. https://doi.org/10.1016/j.heliyon.2026.e44523
- Ocean liming effect on a North Atlantic microbial community: changes in composition and rates I. de Castro et al. https://doi.org/10.3389/fmars.2025.1602158
- Removal of dissolved inorganic carbon from seawater for climate mitigation: potential marine ecosystem impacts G. Hooper et al. https://doi.org/10.3389/fclim.2025.1528951
- Competition for light color between marine Synechococcus strains with fixed and variable pigmentation L. Dufour et al. https://doi.org/10.1128/aem.00087-25
- Design and structuring of activated sludge-based adsorbents for the direct air capture of carbon dioxide J. Liu et al. https://doi.org/10.1080/09593330.2025.2593568
- Ocean alkalinity enhancement reduces silica ballasting during export due to amplified dissolution P. Suessle et al. https://doi.org/10.5194/bg-23-4691-2026
- A stochastic phytoplankton-zooplankton model for the impact of climate change and environmental disturbance on the growth of phytoplankton C. Zhan et al. https://doi.org/10.1007/s11071-025-11936-0
- Seasonal reversal in phytoplankton assembly mechanisms: stochastic dominance in autumn vs. deterministic control in spring within the middle and lower reaches of the Yellow River D. Zeng et al. https://doi.org/10.3389/fmicb.2025.1610438
- Plankton do not care: Minimal effects of ocean liming on plankton growth and grazing in the Eastern Mediterranean C. Traboni et al. https://doi.org/10.1002/lno.70136
- Guidance on integrating marine environmental impacts of ocean alkalinity enhancement into life cycle assessment M. Delval et al. https://doi.org/10.1007/s11367-026-02707-z
- Ocean alkalinity enhancement in a coastal channel: simulating localised dispersion, carbon sequestration and ecosystem impact H. Anderson et al. https://doi.org/10.1088/2515-7620/adce5a
- The alkalinity generation potential of olivine and oyster shell for laboratory experiments: testing the effects of ocean alkalinity enhancement C. Miller & F. Pernet https://doi.org/10.1088/2515-7620/adf0cd
- Influence of Inorganic Nutrients on a North Atlantic Microbial Community’s Response to Ocean Alkalinity Enhancement I. de Castro et al. https://doi.org/10.3390/oceans6040065
- Marine carbon dioxide removal (mCDR) in the Indian seas: current understanding, regional opportunities, and future directions S. Sonar et al. https://doi.org/10.1007/s11027-026-10311-7
18 citations as recorded by crossref.
- Resilience to Alkalinity Perturbations Reveals Ecosystem Stability under Ocean Alkalinity Enhancement Y. Liu et al. https://doi.org/10.34133/olar.0157
- Ocean alkalinity enhancement in an estuary M. Ho et al. https://doi.org/10.3389/fclim.2025.1665329
- Resilience of the gelatinous zooplankton species Oikopleura dioica to ocean alkalinity enhancement A. Bhaumik et al. https://doi.org/10.1371/journal.pone.0344503
- Alkaline mineral dissolution can impair embryonic development in the Pacific oyster (Magallana gigas), raising caution for ocean alkalinity enhancement F. Pernet et al. https://doi.org/10.1093/icesjms/fsag011
- Anchoring permits kelp to acquire an ecological niche in coastal oceans: A model analysis M. Gao et al. https://doi.org/10.1016/j.heliyon.2026.e44523
- Ocean liming effect on a North Atlantic microbial community: changes in composition and rates I. de Castro et al. https://doi.org/10.3389/fmars.2025.1602158
- Removal of dissolved inorganic carbon from seawater for climate mitigation: potential marine ecosystem impacts G. Hooper et al. https://doi.org/10.3389/fclim.2025.1528951
- Competition for light color between marine Synechococcus strains with fixed and variable pigmentation L. Dufour et al. https://doi.org/10.1128/aem.00087-25
- Design and structuring of activated sludge-based adsorbents for the direct air capture of carbon dioxide J. Liu et al. https://doi.org/10.1080/09593330.2025.2593568
- Ocean alkalinity enhancement reduces silica ballasting during export due to amplified dissolution P. Suessle et al. https://doi.org/10.5194/bg-23-4691-2026
- A stochastic phytoplankton-zooplankton model for the impact of climate change and environmental disturbance on the growth of phytoplankton C. Zhan et al. https://doi.org/10.1007/s11071-025-11936-0
- Seasonal reversal in phytoplankton assembly mechanisms: stochastic dominance in autumn vs. deterministic control in spring within the middle and lower reaches of the Yellow River D. Zeng et al. https://doi.org/10.3389/fmicb.2025.1610438
- Plankton do not care: Minimal effects of ocean liming on plankton growth and grazing in the Eastern Mediterranean C. Traboni et al. https://doi.org/10.1002/lno.70136
- Guidance on integrating marine environmental impacts of ocean alkalinity enhancement into life cycle assessment M. Delval et al. https://doi.org/10.1007/s11367-026-02707-z
- Ocean alkalinity enhancement in a coastal channel: simulating localised dispersion, carbon sequestration and ecosystem impact H. Anderson et al. https://doi.org/10.1088/2515-7620/adce5a
- The alkalinity generation potential of olivine and oyster shell for laboratory experiments: testing the effects of ocean alkalinity enhancement C. Miller & F. Pernet https://doi.org/10.1088/2515-7620/adf0cd
- Influence of Inorganic Nutrients on a North Atlantic Microbial Community’s Response to Ocean Alkalinity Enhancement I. de Castro et al. https://doi.org/10.3390/oceans6040065
- Marine carbon dioxide removal (mCDR) in the Indian seas: current understanding, regional opportunities, and future directions S. Sonar et al. https://doi.org/10.1007/s11027-026-10311-7
Saved (final revised paper)
Latest update: 24 Jul 2026
Short summary
Ocean alkalinity enhancement (OAE) is a promising negative emission technology that results in the net sequestration of atmospheric carbon. In this paper, we assess the potential impact of OAE on phytoplankton through an analysis of prior studies and the effects of simulated OAE on photosynthetic competence. Our findings suggest that there may be little if any significant impact on most phytoplankton studied to date if OAE is conducted in well-flushed, nearshore environments.
Ocean alkalinity enhancement (OAE) is a promising negative emission technology that results in...
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