PANGAEA_993415 Seawater carbonate chemistry and growth response of Emiliania huxleyi to ocean alkalinity enhancement Faucher, Giulia; Haunost, Mathias; Paul, Allanah Joy; Tietz, Anne Ulrike Christiane; Riebesell, Ulf Seawater carbonate chemistry and growth response of Emiliania huxleyi to ocean alkalinity enhancement 2026-04-02 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993415 Investigator Giulia Faucher gfaucher@geomar.de Investigator Yan Yang yangyan@xmu.edu.cn Earth Science Type of study Species, unique identification Species, unique identification (URI) Species, unique identification (Semantic URI) Alkalinity, total Carbon, inorganic, dissolved pH, total scale Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Carbon dioxide Bicarbonate ion Carbonate ion Aragonite saturation state Calcite saturation state Growth rate Particulate inorganic carbon/particulate organic carbon ratio Carbon, total, particulate, production per cell Carbon, organic, particulate, production per cell Carbon, inorganic, particulate, production per cell Temperature, water Salinity Carbonate system computation flag Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) geoscientificInformation Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Chromista Emiliania huxleyi Growth/Morphology Haptophyta Laboratory experiment Laboratory strains Not applicable Pelagos Phytoplankton Primary production/Photosynthesis Species interaction Calculated using CO2SYS Calculated using seacarb after Nisumaa et al. (2010) Complete OA-ICC Ocean Acidification International Coordination Centre unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 432 data points text/tab-separated-values Faucher, Giulia; Haunost, Mathias; Paul, Allanah Joy; Tietz, Christiane; Riebesell, Ulf (2025): Growth response of Emiliania huxleyi to ocean alkalinity enhancement. Biogeosciences, 22(2), 405-415, https://doi.org/10.5194/bg-22-405-2025 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 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

In this context, we studied the sensitivity of Emiliania huxleyi, the most widespread coccolithophore species, to ocean alkalinity enhancement in a culture experiment. We monitored the species' growth and calcification response to progressively increasing levels of total alkalinity (TA). 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 extracted from tables in the related paper (see Related to) 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 2026-04-02. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993415"!

http://mel.xmu.edu.cn/en/ https://cran.r-project.org/web/packages/seacarb/index.html seacarb: seawater carbonate chemistry with R. R package version 3.3.3 https://doi.org/10.5194/bg-22-405-2025 Growth response of Emiliania huxleyi to ocean alkalinity enhancement https://doi.org/10.5194/essd-16-3771-2024 An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal https://doi.org/10.5194/essd-2-167-2010 Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification https://doi.org/10.5194/essd-8-79-2016 Data compilation on the biological response to ocean acidification: an update https://www.iaea.org/services/oa-icc/science-and-collaboration/data-access-and-management OA-ICC DIF 9.4 2026-04-02 2026-04-02