Welch Zoe S zoe.welch@lifesci.ucsb.edu University of California, Santa Barbara https://ror.org/02t274463 Kim Sylvia M University of California, Santa Barbara https://ror.org/02t274463 Liu Michael University of California, Santa Barbara https://ror.org/02t274463 Bui An University of California, Santa Barbara https://ror.org/02t274463 Grigolite Jesse University of California, Santa Barbara https://ror.org/02t274463 Jones Janice L University of California, Santa Barbara https://ror.org/02t274463 Iglesias-Rodríguez M Débora University of California, Santa Barbara https://ror.org/02t274463 2026 Seawater carbonate chemistry and biogeochemistry and composition of a phytoplankton community dataset https://doi.pangaea.de/10.1594/PANGAEA.993632 2026-04-15T03:16:13 The dramatic impacts of global climate change have driven marine carbon dioxide removal (mCDR) innovation, including ocean alkalinity enhancement (OAE), in an attempt to keep global warming under 2 °C. We experimented to assess the impacts of brucite-inspired alkalinity addition (BIAA) as an OAE approach on the carbonate chemistry, biogeochemistry, and composition of the Santa Barbara Channel phytoplankton community sourced from a spring upwelling event. The BIAA treatment used MgCl2 * 6H2O and NaOH to yield a total alkalinity (TA) concentration of 3000 µmol/kg, in contrast with the untreated seawater controls (TA = 2300 µmol/kg). 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 Dryad (see Source) by the OA-SICC 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 2026-04-15. Welch Zoe S zoe.welch@lifesci.ucsb.edu Kim Sylvia M Liu Michael Bui An Grigolite Jesse Jones Janice L Iglesias-Rodríguez M Débora 2025 Brucite-inspired ocean alkalinity enhancement alters the biogeochemistry and composition of a phytoplankton community: a Santa Barbara channel case report journal article Environmental Research Letters 20(11) https://doi.org/10.1088/1748-9326/ae1752 114087 Welch Zoe S zoe.welch@lifesci.ucsb.edu Kim Sylvia M Liu Michael Bui An Grigolite Jesse Jones Janice L Iglesias-Rodriguez Debora dir@noc.soton.ac.uk 2025 Data from: Brucite-inspired ocean alkalinity enhancement alters the biogeochemistry and composition of a phytoplankton community: A Santa Barbara channel case report dataset Dryad https://doi.org/10.5061/DRYAD.9CNP5HQVK 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 -119.8 -119.8 34.3 34.3 -119.8 34.3 2023-05-10T00:00:00 2023-05-10T00:00:00 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 Santa_Barbara_channel_OAE 34.3 -119.8 2023-05-10T00:00:00 Experiment EXP 8280 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Type of study Study type type Welch Zoe S zoe.welch@lifesci.ucsb.edu Study type Treatment Treat treatment Welch Zoe S zoe.welch@lifesci.ucsb.edu Treat Condition Cond Welch Zoe S zoe.welch@lifesci.ucsb.edu Cond Day of experiment DOE day day Time T http://dbpedia.org/resource/Time Welch Zoe S zoe.welch@lifesci.ucsb.edu DOE [day] Replicate Repl Welch Zoe S zoe.welch@lifesci.ucsb.edu Repl Biogenic silica bSiO2 µmol/l biogenic silica http://purl.obolibrary.org/obo/CHEBI_64389 Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu bSiO2 [µmol/l] Carbon, organic, particulate POC µmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic particulate Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu POC [µmol/l] Nitrogen, organic, particulate PON µmol/l nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 organic particulate Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu PON [µmol/l] Carbon, inorganic, particulate PIC µmol/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 particulate Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu PIC [µmol/l] Carbon, organic, particulate/Nitrogen, organic, particulate ratio POC/PON carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic particulate nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 ratio Welch Zoe S zoe.welch@lifesci.ucsb.edu POC/PON Particulate inorganic carbon/particulate organic carbon ratio PIC/POC particulate inorganic carbon PIC particulate organic carbon POC ratio Welch Zoe S zoe.welch@lifesci.ucsb.edu PIC/POC Biogenic silica/Carbon, organic, particulate bSi/POC biogenic silica http://purl.obolibrary.org/obo/CHEBI_64389 carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic particulate Welch Zoe S zoe.welch@lifesci.ucsb.edu bSi/POC Calcium Ca µmol/l calcium Ca https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:22984 Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu dissolved Ca [µmol/l] (dissolved) Magnesium Mg µmol/l magnesium Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu dissolved Mg [µmol/l] (dissolved) Phosphate [PO4]3- µmol/l phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu [PO4]3- [µmol/l] Silicate Si(OH)4 µmol/l Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu Si(OH)4 [µmol/l] Nitrite [NO2]- µmol/l nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu [NO2]- [µmol/l] Nitrate and Nitrite [NO3]- + [NO2]- µmol/l nitrate http://purl.obolibrary.org/obo/CHEBI_17632 nitrite http://purl.obolibrary.org/obo/CHEBI_16301 Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu [NO3]- + [NO2]- [µmol/l] Quantum yield efficiency of photosystem II Fv/Fm Welch Zoe S zoe.welch@lifesci.ucsb.edu Fv/Fm Indicator Indicator indicator http://purl.obolibrary.org/obo/CHEBI_47867 Welch Zoe S zoe.welch@lifesci.ucsb.edu FixArea, which is a proxy indicator for chlorophyll a content Indicator (FixArea, which is a proxy ind...) Identification ID Welch Zoe S zoe.welch@lifesci.ucsb.edu ID Cell density Cells #/ml cell density Welch Zoe S zoe.welch@lifesci.ucsb.edu Cells [#/ml] Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 Welch Zoe S zoe.welch@lifesci.ucsb.edu Sal Alkalinity, total AT µmol/kg total https://www.oxforddictionaries.com/definition/american_english/total Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu AT [µmol/kg] pH, total scale pHT Welch Zoe S zoe.welch@lifesci.ucsb.edu measured at temperature during carbonate chemistry anallysis pHT (measured at temperature durin...) Phosphate [PO4]3- µmol/kg phosphate http://purl.obolibrary.org/obo/CHEBI_26020 Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu [PO4]3- [µmol/kg] Silicate Si(OH)4 µmol/kg Molar Concentration Welch Zoe S zoe.welch@lifesci.ucsb.edu Si(OH)4 [µmol/kg] Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Welch Zoe S zoe.welch@lifesci.ucsb.edu in Situ Temp [°C] (in Situ) Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Welch Zoe S zoe.welch@lifesci.ucsb.edu duringCChemAnalysis Temp [°C] (duringCChemAnalysis) pH, total scale pHT Calculated using CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu pHT (Calculated using CO2SYS) 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 CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu fCO2water_SST_wet [µatm] (Calculated using CO2SYS) 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 CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu pCO2water_SST_wet [µatm] (Calculated using CO2SYS) Bicarbonate ion [HCO3]- µmol/kg Molar Concentration Calculated using CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu [HCO3]- [µmol/kg] (Calculated using CO2SYS) Carbonate ion [CO3]2- µmol/kg Molar Concentration Calculated using CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu [CO3]2- [µmol/kg] (Calculated using CO2SYS) Carbon dioxide CO2 µmol/kg carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 Molar Concentration Calculated using CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu CO2 [µmol/kg] (Calculated using CO2SYS) Calcite saturation state Omega Cal Calculated using CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu Omega Cal (Calculated using CO2SYS) Aragonite saturation state Omega Arg aragonite saturation state Calculated using CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu Omega Arg (Calculated using CO2SYS) 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 CO2SYS Welch Zoe S zoe.welch@lifesci.ucsb.edu DIC [µmol/kg] (Calculated using CO2SYS) 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 (Calculated using seacarb afte...) 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] (Calculated using seacarb afte...) 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] (Calculated using seacarb afte...) 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] (Calculated using seacarb afte...) 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] (Calculated using seacarb afte...) 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] (Calculated using seacarb afte...) 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] (Calculated using seacarb afte...) 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 (Calculated using seacarb afte...) 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 (Calculated using seacarb afte...) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Coast and continental shelf Community composition and diversity Entire community Laboratory experiment North Pacific Pelagos Primary production/Photosynthesis Temperate author10403 author10414 author104871 author106429 author107699 author107700 author116949 author116950 author116951 author116952 author116953 author21564 author22144 author22148 author22159 author22414 author22445 author24922 author27217 author28754 author29138 author29176 author32865 author33259 author34379 author39204 author48750 author51658 author55788 author56746 author59171 author59172 author59173 author69140 curlevel30 event3367365 geocode1599 geocode1600 geocode1601 inst20253 inst20533 journal16590 journal5064 license21 method6426 method6506 method7423 param103569 param105290 param105291 param129269 param172694 param176551 param184731 param185520 param18664 param18846 param21033 param2922 param49312 param49313 param516309 param5342 param534369 param54293 param54294 param7056 param716 param717 param755 param757 param758 param78394 param80104 param80107 param80114 param82111 param82364 param82365 param82366 param84049 param87073 param87457 param96278 pi116949 pi48750 project4173 ref124625 ref128879 ref139356 ref139357 ref31273 ref79258 term1073209 term1073482 term1073483 term1073484 term1073490 term1073493 term1102892 term2606205 term2663825 term2698012 term38253 term38338 term38477 term38520 term38548 term38841 term38844 term38851 term38855 term38858 term38859 term38889 term38892 term38896 term40024 term40552 term40554 term40646 term40665 term41013 term43298 term43821 term43834 term43972 term43975 term43997 term44030 term44419 term48166 term48982 term49506