Gill Sophie University of Oxford https://ror.org/052gg0110 Ge Jiayou Hong Kong University of Science and Technology https://ror.org/00q4vv597 Southern Marine Science and Engineering Guangdong Laboratory http://www.gmlab.ac.cn/ https://ror.org/00y7mag53 Zhang Qiong Hong Kong University of Science and Technology https://ror.org/00q4vv597 Southern Marine Science and Engineering Guangdong Laboratory http://www.gmlab.ac.cn/ https://ror.org/00y7mag53 Henderson Gideon M 0000-0002-6279-7137 University of Oxford https://ror.org/052gg0110 Rickaby Rosalind E M rosr@earth.ox.ac.uk http://www.earth.ox.ac.uk/people/profiles/academic/rosr 0000-0002-6095-8419 University of Oxford https://ror.org/052gg0110 2026 Seawater carbonate chemistry and physiological data for coccolithophores under OAE treatment dataset https://doi.pangaea.de/10.1594/PANGAEA.993974 2026-05-08T08:30:40 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. Gill Sophie Ge Jiayou Zhang Qiong Henderson Gideon M 0000-0002-6279-7137 Rickaby Rosalind E M rosr@earth.ox.ac.uk http://www.earth.ox.ac.uk/people/profiles/academic/rosr 0000-0002-6095-8419 2025 The Physiological Response of Contrasting Coccolithophore Species to Ocean Alkalinity Enhancement journal article Journal of Geophysical Research: Biogeosciences 130(11) https://doi.org/10.1029/2025JG009103 e2025JG009103 Gill Sophie Ge Jiayou Zhang Qiong Henderson Gideon M 0000-0002-6279-7137 Rickaby Rosalind E M rosr@earth.ox.ac.uk http://www.earth.ox.ac.uk/people/profiles/academic/rosr 0000-0002-6095-8419 2025 Physiological data for coccolithophores under OAE treatment dataset Zenodo https://doi.org/10.5281/ZENODO.17479763 Nisumaa Anne-Marin annemarin@gmail.com Pesant Stephane pesant@ebi.ac.uk 0000-0002-4936-5209 Bellerby Richard G J Richard.Bellerby@niva.no http://www2.bjerknes.uib.no/pages.asp?pid=21&kat=5&lang=2 Delille Bruno bruno.delille@uliege.be 0000-0003-0502-8101 Middelburg Jack J jmiddelburg@nioo.knaw.nl 0000-0003-3601-9072 Orr James C j.orr@iaea.org 0000-0002-8707-7080 Riebesell Ulf uriebesell@geomar.de https://www.geomar.de/uriebesell/ 0000-0002-9442-452X Tyrrell Toby t.tyrrell@noc.soton.ac.uk Wolf-Gladrow Dieter A dieter.wolf-gladrow@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/dieter-wolf-gladrow.html 0000-0001-9531-8668 Gattuso Jean-Pierre jean-pierre.gattuso@imev-mer.fr 0000-0002-4533-4114 2010 EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification journal article Earth System Science Data 2(2) https://doi.org/10.5194/essd-2-167-2010 167-175 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 Brockmann Patrick Galdino Carolina Schindler Uwe uschindler@pangaea.de https://blog.thetaphi.de/ 0000-0002-1900-4162 Gazeau Frédéric frederic.gazeau@imev-mer.fr 0000-0001-8807-4597 2024 An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal journal article Earth System Science Data 16(8) https://doi.org/10.5194/essd-16-3771-2024 3771-3780 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 Hansson L Gattuso Jean-Pierre jean-pierre.gattuso@imev-mer.fr 0000-0002-4533-4114 2016 Data compilation on the biological response to ocean acidification: an update journal article Earth System Science Data 8(1) https://doi.org/10.5194/essd-8-79-2016 79-87 Gattuso Jean-Pierre jean-pierre.gattuso@imev-mer.fr 0000-0002-4533-4114 Epitalon Jean-Marie Lavigne Héloïse hlavigne@naturalsciences.be Orr James James.Orr@lsce.ipsl.fr Gentili Bernard bernard.gentili@orange.fr http://omtab.obs-vlfr.fr/personnes/z_gent_be/gentili.php Hagens Mathilde 0000-0003-3980-1043 Hofmann Andreas Mueller Jens-Daniel Proye Aurélien Rae James 0000-0003-3904-2526 Soetaert Karline karline.soetaert@nioz.nl 0000-0003-4603-7100 2024 seacarb: seawater carbonate chemistry with R. R package version 3.3.3 other https://cran.r-project.org/web/packages/seacarb/index.html OA-ICC Ocean Acidification International Coordination Centre https://www.iaea.org/services/oa-icc/science-and-collaboration/data-access-and-management International Atomic Energy Agency IAEA http://www.iaea.org https://ror.org/02zt1gg83 6422 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Type of study Study type type Zhang Qiong Study type Species, unique identification Species UID species Zhang Qiong Species UID Species, unique identification (URI) Species UID (URI) species Zhang Qiong Species UID (URI) Species, unique identification (Semantic URI) Species UID (Semantic URI) species Zhang Qiong Species UID (Semantic URI) Treatment Treat treatment Zhang Qiong Replete: CO2aq > 10 μmol /kg throughout the experiment; Limited: [CO2] reached <1μmol/kg by the time of harvest Treat (Replete: CO2aq > 10 μmol /kg ...) Pathway Pathw Zhang Qiong I: adding NaHCO3 to Synthetic Ocean Water (SOW); II: adding Na2CO3 + CaCl2 to SOW Pathw (I: adding NaHCO3 to Synthetic...) Alkalinity, total AT µmol/kg total https://www.oxforddictionaries.com/definition/american_english/total Molar Concentration Zhang Qiong Initial AT [µmol/kg] (Initial) Carbon, inorganic, dissolved DIC µmol/kg carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Zhang Qiong DIC [µmol/kg] pH, NBS scale pH NBS Zhang Qiong pH NBS Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pCO2water_SST_wet µatm partial pressure carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 water http://purl.obolibrary.org/obo/CHEBI_15377 Energy Density http://dbpedia.org/resource/Energy_density Force Per Area Zhang Qiong pCO2water_SST_wet [µatm] Carbon dioxide CO2 µmol/kg carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 Molar Concentration Zhang Qiong CO2 [µmol/kg] Bicarbonate ion [HCO3]- µmol/kg Molar Concentration Zhang Qiong [HCO3]- [µmol/kg] Carbonate ion [CO3]2- µmol/kg Molar Concentration Zhang Qiong [CO3]2- [µmol/kg] Calcite saturation state Omega Cal Zhang Qiong Omega Cal Growth rate µ 1/day growth rate http://purl.obolibrary.org/obo/PATO_0001492 Frequency http://dbpedia.org/resource/Frequency Zhang Qiong µ [1/day] Calcification rate of calcium carbonate per cell Calc rate CaCO3/cell pg/#/day calcification rate calcium carbonate http://purl.obolibrary.org/obo/CHEBI_3311 cell Zhang Qiong Calc rate CaCO3/cell [pg/#/day] Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Zhang Qiong Temp [°C] Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 Zhang Qiong Sal Coccosphere size, relative Coccosp size rel size http://purl.obolibrary.org/obo/PATO_0000117 Zhang Qiong Coccosp size rel Alkalinity, total AT µmol/kg total https://www.oxforddictionaries.com/definition/american_english/total Molar Concentration Zhang Qiong Final AT [µmol/kg] (Final) Carbonate system computation flag CSC flag Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 CSC flag pH, total scale pHT Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 pHT Carbon dioxide CO2 µmol/kg carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 Molar Concentration Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 CO2 [µmol/kg] Fugacity of carbon dioxide (water) at sea surface temperature (wet air) fCO2water_SST_wet µatm fugacity https://en.wikipedia.org/wiki/Fugacity carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 water http://purl.obolibrary.org/obo/CHEBI_15377 Energy Density http://dbpedia.org/resource/Energy_density Force Per Area Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 fCO2water_SST_wet [µatm] Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) pCO2water_SST_wet µatm partial pressure carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 water http://purl.obolibrary.org/obo/CHEBI_15377 Energy Density http://dbpedia.org/resource/Energy_density Force Per Area Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 pCO2water_SST_wet [µatm] Bicarbonate ion [HCO3]- µmol/kg Molar Concentration Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 [HCO3]- [µmol/kg] Carbonate ion [CO3]2- µmol/kg Molar Concentration Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 [CO3]2- [µmol/kg] Carbon, inorganic, dissolved DIC µmol/kg carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Molar Concentration Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 DIC [µmol/kg] Aragonite saturation state Omega Arg aragonite saturation state Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 Omega Arg Calcite saturation state Omega Cal Calculated using seacarb after Nisumaa et al. (2010) https://doi.org/10.5194/essd-2-167-2010 Yang Yan yangyan@xmu.edu.cn http://mel.xmu.edu.cn/en/ 0000-0003-4900-5606 Omega Cal CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels 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 author10403 author10414 author107699 author107700 author117393 author117394 author21564 author22144 author22148 author22159 author22414 author22445 author24922 author27217 author28606 author28754 author29138 author29176 author32865 author34379 author34696 author39204 author48750 author51658 author55788 author56746 author59171 author59172 author59173 author69140 author72095 curlevel30 inst20253 inst20620 inst21016 inst21841 journal16590 journal8820 license21 method6426 param128289 param185520 param49312 param49313 param510679 param515368 param531872 param534368 param534369 param54293 param54294 param563141 param716 param717 param80114 param82111 param82364 param82365 param82366 param87073 param96278 pi48750 pi72095 project4173 ref124625 ref128879 ref139772 ref139773 ref31273 ref79258 term1073204 term1073490 term1073493 term1073966 term1074204 term2606205 term2698012 term38253 term38477 term38841 term38844 term38858 term38860 term38871 term38887 term38888 term39413 term39425 term40551 term40646 term41013 term41029 term42635 term43298 term43821 term43834 term43838 term43972 term43995 term44030 term48166 term49384 term49506 term50714 term77985 term78027