Articles | Volume 21, issue 3
https://doi.org/10.5194/bg-21-761-2024
© Author(s) 2024. 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-21-761-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Phytoplankton response to increased nickel in the context of ocean alkalinity enhancement
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Giulia Faucher
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Ulf Riebesell
GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
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Cited
17 citations as recorded by crossref.
- Alkalinity factory can achieve positive climate benefits within decades Q. Yan et al. https://doi.org/10.1016/j.jclepro.2025.145406
- Potential Environmental Impacts and Management Strategies for Metal Release during Ocean Alkalinity Enhancement Using Olivine W. Zhuang et al. https://doi.org/10.1021/acs.est.4c10705
- An ecosystem of carbon dioxide removal reviews – part 2: CO2 removal via blue carbon ecosystems C. Rischer et al. https://doi.org/10.1039/D5EE04922A
- Differential responses of size-fractionated eukaryotic microalgae to ocean alkalinity enhancement in oligotrophic seawaters H. Bian et al. https://doi.org/10.1128/aem.00092-26
- Ocean alkalinity enhancement using sodium carbonate salts does not lead to measurable changes in Fe dynamics in a mesocosm experiment D. González-Santana et al. https://doi.org/10.5194/bg-21-2705-2024
- Linking soil-derived dissolved organic matter from Malaysian forests to phytoplankton growth: insights from fractionation and EEM-PARAFAC analysis E. Hashim et al. https://doi.org/10.1007/s10811-026-03793-0
- Effects of ocean alkalinity enhancement on plankton in the Equatorial Pacific J. Guo et al. https://doi.org/10.1038/s43247-025-02248-7
- Responses of microbial metabolic rates to non-equilibrated silicate- versus calcium-based ocean alkalinity enhancement L. Marín-Samper et al. https://doi.org/10.5194/bg-21-5707-2024
- Olivine-induced seasonal dynamics of eukaryotic microalgal and bacterial assemblages in mid-latitude nearshore marine ecosystems H. Ren et al. https://doi.org/10.1016/j.marpolbul.2025.117964
- Tackling the technological, environmental, legal, and economic challenges of ocean alkalinity enhancement: A case study from the Baltic sea A. Lähteenmäki-Uutela et al. https://doi.org/10.1016/j.isci.2026.116928
- Assessment of solid ikaite release into seawater – implications for ocean alkalinity enhancement S. Baltruschat et al. https://doi.org/10.1016/j.apgeochem.2026.106781
- Hawaiian beaches as natural analogues for enhanced silicate weathering of olivine M. Kreuzburg et al. https://doi.org/10.1088/1748-9326/ae130c
- Impulse response functions as a framework for quantifying ocean-based carbon dioxide removal E. Yankovsky et al. https://doi.org/10.5194/bg-22-5723-2025
- Resilience of Phytoplankton and Microzooplankton Communities under Ocean Alkalinity Enhancement in the Oligotrophic Ocean X. Xin et al. https://doi.org/10.1021/acs.est.4c09838
- 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
- Influence of ocean alkalinity enhancement with olivine or steel slag on a coastal plankton community in Tasmania J. Guo et al. https://doi.org/10.5194/bg-21-2335-2024
- Investigating the effect of silicate- and calcium-based ocean alkalinity enhancement on diatom silicification A. Ferderer et al. https://doi.org/10.5194/bg-21-2777-2024
17 citations as recorded by crossref.
- Alkalinity factory can achieve positive climate benefits within decades Q. Yan et al. https://doi.org/10.1016/j.jclepro.2025.145406
- Potential Environmental Impacts and Management Strategies for Metal Release during Ocean Alkalinity Enhancement Using Olivine W. Zhuang et al. https://doi.org/10.1021/acs.est.4c10705
- An ecosystem of carbon dioxide removal reviews – part 2: CO2 removal via blue carbon ecosystems C. Rischer et al. https://doi.org/10.1039/D5EE04922A
- Differential responses of size-fractionated eukaryotic microalgae to ocean alkalinity enhancement in oligotrophic seawaters H. Bian et al. https://doi.org/10.1128/aem.00092-26
- Ocean alkalinity enhancement using sodium carbonate salts does not lead to measurable changes in Fe dynamics in a mesocosm experiment D. González-Santana et al. https://doi.org/10.5194/bg-21-2705-2024
- Linking soil-derived dissolved organic matter from Malaysian forests to phytoplankton growth: insights from fractionation and EEM-PARAFAC analysis E. Hashim et al. https://doi.org/10.1007/s10811-026-03793-0
- Effects of ocean alkalinity enhancement on plankton in the Equatorial Pacific J. Guo et al. https://doi.org/10.1038/s43247-025-02248-7
- Responses of microbial metabolic rates to non-equilibrated silicate- versus calcium-based ocean alkalinity enhancement L. Marín-Samper et al. https://doi.org/10.5194/bg-21-5707-2024
- Olivine-induced seasonal dynamics of eukaryotic microalgal and bacterial assemblages in mid-latitude nearshore marine ecosystems H. Ren et al. https://doi.org/10.1016/j.marpolbul.2025.117964
- Tackling the technological, environmental, legal, and economic challenges of ocean alkalinity enhancement: A case study from the Baltic sea A. Lähteenmäki-Uutela et al. https://doi.org/10.1016/j.isci.2026.116928
- Assessment of solid ikaite release into seawater – implications for ocean alkalinity enhancement S. Baltruschat et al. https://doi.org/10.1016/j.apgeochem.2026.106781
- Hawaiian beaches as natural analogues for enhanced silicate weathering of olivine M. Kreuzburg et al. https://doi.org/10.1088/1748-9326/ae130c
- Impulse response functions as a framework for quantifying ocean-based carbon dioxide removal E. Yankovsky et al. https://doi.org/10.5194/bg-22-5723-2025
- Resilience of Phytoplankton and Microzooplankton Communities under Ocean Alkalinity Enhancement in the Oligotrophic Ocean X. Xin et al. https://doi.org/10.1021/acs.est.4c09838
- 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
- Influence of ocean alkalinity enhancement with olivine or steel slag on a coastal plankton community in Tasmania J. Guo et al. https://doi.org/10.5194/bg-21-2335-2024
- Investigating the effect of silicate- and calcium-based ocean alkalinity enhancement on diatom silicification A. Ferderer et al. https://doi.org/10.5194/bg-21-2777-2024
Saved (final revised paper)
Latest update: 21 Aug 2026
Short summary
Ocean alkalinity enhancement (OAE) is a promising approach to remove CO2 by accelerating natural rock weathering. However, some of the alkaline substances contain trace metals which could be toxic to marine life. By exposing three representative phytoplankton species to Ni released from alkaline materials, we observed varying responses of phytoplankton to nickel concentrations, suggesting caution should be taken and toxic thresholds should be avoided in OAE with Ni-rich materials.
Ocean alkalinity enhancement (OAE) is a promising approach to remove CO2 by accelerating natural...
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