10.1594/PANGAEA.994609Subhas, Adam VAdam VSubhas0000-0002-7688-6624Woods Hole Oceanographic InstitutionMarx, LukasLukasMarxUniversity of PortsmouthReynolds, SarahSarahReynoldsUniversity of PortsmouthFlohr, AnitaAnitaFlohr0000-0002-5018-5379National Oceanography Centre, SouthamptonMawji, Edward WEdward WMawjiNational Oceanography Centre, SouthamptonBrown, Peter JPeter JBrown0000-0002-1152-1114National Oceanography Centre, SouthamptonCael, B BB BCaelNational Oceanography Centre, SouthamptonPANGAEA2026Biomass/Abundance/Elemental compositionBottles or small containers/Aquaria (<20 L)Calcification/DissolutionCommunity composition and diversityEntire communityLaboratory experimentNorth AtlanticOcean alkalinity enhancementOpen oceanPelagosPrimary production/PhotosynthesisTemperateEvent labelType of studyTreatmentTime in hoursExperimentNitrate and NitriteNitritePhosphateSilicateSynechococcusProchlorococcusPicoeukaryotesLow nucleic acid bacteriaHigh nucleic acid bacteriaBacteriaParticle distribution exponentParticle distribution exponent, standard deviationVolume, filterCarbon, total particulateCarbon, inorganic, particulateNitrogen, total particulateCalcium carbonate/Total carbon ratioδ13C, total particulate carbonNet primary production of carbonAlkalinity, totalCarbon, inorganic, dissolvedCalcite saturation statePartial pressure of carbon dioxide (water) at sea surface temperature (wet air)pH, total scaleTemperature, waterSalinityCarbonate system computation flagCarbon dioxideFugacity of carbon dioxide (water) at sea surface temperature (wet air)Bicarbonate ionCarbonate ionAragonite saturation stateExperimentCalculated using seacarb after Nisumaa et al. (2010)Ocean Acidification International Coordination Centre (OA-ICC)Yang, YanYanYang0000-0003-4900-56062020-01-25T00:05:00/2020-02-29T00:01:45Dataset10.3389/fclim.2022.784997https://github.com/bbcael/subhasetal10.5194/essd-2-167-201010.5194/essd-16-3771-202410.5194/essd-8-79-2016https://cran.r-project.org/web/packages/seacarb/index.html1224 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalWe tested the ocean alkalinity enhancement response of two natural seawater mixed layer microbial communities in the North Atlantic Subtropical Gyre, one at the Western gyre boundary, and one in the middle of the gyre. We conducted 4-day microcosm incubation experiments at sea, spiked with three increasing amounts of alkaline sodium salts and a 13C-bicarbonate tracer at constant pCO2. We then measured a suite of dissolved and particulate parameters to constrain the chemical and biological response to these additions.
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 Github (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 2026-05-12.-76.15-41.466623.566626.5