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Gill, Sophie; Ge, Jiayou; Zhang, Qiong; Henderson, Gideon M; Rickaby, Rosalind E M (2026): Seawater carbonate chemistry and physiological data for coccolithophores under OAE treatment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993974 (DOI registration in progress)

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Published: 2026-05-08

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Abstract:
Here we examined the growth, calcification response, and morphology of these two key "endmember" species of coccolithophore (Gephyrocapsa huxleyi and Coccolithus braarudii) to ocean alkalinity enhancement using in vitro laboratory culture experiments. We also compared how the addition of the monovalent cation Na+ and divalent cation Ca2+ to raise total alkalinity affected growth and calcification responses.
This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were downloaded from Zenodo (see Source) by the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2026-04-30.
Keyword(s):
Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Chromista; Coccolithus braarudii; Gephyrocapsa huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Not applicable; Ocean alkalinity enhancement; Pelagos; Phytoplankton; Single species
Related to:
Gill, Sophie; Ge, Jiayou; Zhang, Qiong; Henderson, Gideon M; Rickaby, Rosalind E M (2025): The Physiological Response of Contrasting Coccolithophore Species to Ocean Alkalinity Enhancement. Journal of Geophysical Research: Biogeosciences, 130(11), e2025JG009103, https://doi.org/10.1029/2025JG009103
Source:
Gill, Sophie; Ge, Jiayou; Zhang, Qiong; Henderson, Gideon M; Rickaby, Rosalind E M (2025): Physiological data for coccolithophores under OAE treatment [dataset]. Zenodo, https://doi.org/10.5281/ZENODO.17479763
References:
Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010
Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024
Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016
Related code / software:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeZhang, Qiong
2Species, unique identificationSpecies UIDZhang, Qiong
3Species, unique identification (URI)Species UID (URI)Zhang, Qiong
4Species, unique identification (Semantic URI)Species UID (Semantic URI)Zhang, Qiong
5TreatmentTreatZhang, QiongReplete: CO2aq > 10 μmol /kg throughout the experiment; Limited: [CO2] reached <1μmol/kg by the time of harvest
6PathwayPathwZhang, QiongI: adding NaHCO3 to Synthetic Ocean
Water (SOW); II: adding Na2CO3 + CaCl2 to SOW
7Alkalinity, totalATµmol/kgZhang, QiongInitial
8Carbon, inorganic, dissolvedDICµmol/kgZhang, Qiong
9pH, NBS scalepH NBSZhang, Qiong
10Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmZhang, Qiong
11Carbon dioxideCO2µmol/kgZhang, Qiong
12Bicarbonate ion[HCO3]-µmol/kgZhang, Qiong
13Carbonate ion[CO3]2-µmol/kgZhang, Qiong
14Calcite saturation stateOmega CalZhang, Qiong
15Growth rateµ1/dayZhang, Qiong
16Calcification rate of calcium carbonate per cellCalc rate CaCO3/cellpg/#/dayZhang, Qiong
17Temperature, waterTemp°CZhang, Qiong
18SalinitySalZhang, Qiong
19Coccosphere size, relativeCoccosp size relZhang, Qiong
20Alkalinity, totalATµmol/kgZhang, QiongFinal
21Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22pH, total scalepHTYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6422 data points

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