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PreprintCited by 15Marine and coastal ecosystemsClimate Change and GeoengineeringOcean Acidification Effects and Responses

Technical note: Ocean Alkalinity Enhancement Pelagic Impact Intercomparison Project (OAEPIIP)

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Bach, Lennart Thomas, Ferderer, Aaron James, LaRoche, Julie, Schulz, Kai Georg·2024·Biogeosciences
DOI 10.5194/egusphere-2024-692

Preprint — published as 10.5194/bg-21-3665-2024

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Abstract

Abstract. Ocean Alkalinity Enhancement (OAE) aims to transfer carbon dioxide (CO2) from the atmosphere to the ocean by increasing the capacity of seawater to store CO2. The potential effects of OAE-induced changes in seawater chemistry on marine biology must be assessed to understand if OAE, operated at a climate relevant scale, would be environmentally sustainable. Here, we describe the design of the Ocean Alkalinity Enhancement Pelagic Impact Intercomparison Project (OAEPIIP) – a standardised OAE microcosm experiment with plankton communities to be conducted worldwide. OAEPIIP provides funding for participating laboratories to conduct OAE experiments in their local environments. This paper constitutes a detailed manual on the standardised methodology that shall be adopted by all OAEPIIP participants. The individual studies will provide new insights into how plankton communities respond to OAE. The synthesis of these standardized studies, without publication bias, will reveal common OAE-responses that occur across geographic and environmental gradients and are therefore particularly important to determine. The funding available to OAEPIIP and resulting data will be shared to maximise its value and the accessibility. The globally coordinated effort has potential to promote scientific consensus about the potential effects of OAE on diverse plankton communities. Such consensus, through inclusion of the global community, will provide a sounder base to facilitate political decision making whether OAE should be upscaled or not.

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  • The study followed OAEPIIP-standardised methods to ensure consistency and comparability within the global intercomparison framework.

    “Our study followed OAEPIIP-standardised methods to ensure consistency and comparability within the global intercomparison framework.”

    From Biogeochemical responses to ocean alkalinity enhancement in the North China Sea (2026) · cites this paper as Bach et al. (2024)

  • The Ocean Alkalinity Enhancement Pelagic Impact Intercomparison Project (OAEPIIP) was established to standardise experimental protocols and enable systematic evaluation of plankton responses across diverse marine environments.

    “To improve comparability among studies, the Ocean Alkalinity Enhancement Pelagic Impact Intercomparison Project (OAEPIIP) was established to standardise experimental protocols and enable systematic evaluation of plankton responses across diverse marine environments (Bach, 2024).”

    From Biogeochemical responses to ocean alkalinity enhancement in the North China Sea (2026) · cites this paper as Bach, 2024

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Research works printed but not linked: 39

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Cited by

Sorted by citations

Authors
Bach, L. T., Ferderer, A. J., LaRoche, J., & Schulz, K. G.
Affiliations
  • University of Tasmania (AU)
  • Dalhousie University (CA)
  • Southern Cross University (AU)
Corresponding author
Bach, Lennart Thomas
ORCID
Venue
Biogeosciences
Publisher
Copernicus GmbH
Published
2024-03-12
Volume
21
Issue
16
Pages
3665-3676
ISSN
1726-4170 (ISSN-L)
DOI
10.5194/egusphere-2024-692
OpenAlex
W4401763481
Cited by
15
References
0
Citations by year
2026: 7 · 2025: 7 · 2024: 1
FWCI
3.23
Type
journal article
Language
en
Open access
Licence
Locations
  • Biogeosciences (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Informationszentrum Lebenswissenschaften (ZB MED) (submittedVersion, cc-by)
Funders
  • University of Tasmania
  • Australian Research Council (FT200100846)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Marine and coastal ecosystems
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate Change and Geoengineering
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Ocean Acidification Effects and Responses
Keywords
ocean alkalinity enhancement, plankton communities, seawater chemistry, CO2 sequestration, microcosm experiments, ocean carbon storage

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