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Iglesias-Rodriguez, Debora; Halloran, P R; Rickaby, Rosalind E M; Hall, Ian R; Colmenero-Hidalgo, Elena; Gittins, J R; Green, Darryl R H; Tyrrell, Toby; Gibbs, Samantha J; von Dassow, Peter; Rehm, E; Armbrust, E Virginia; Boessenkool, K P (2008): Seawater carbonate chemistry and processes during experiments with Emiliania huxleyi, 2008 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.718841, Supplement to: Iglesias-Rodriguez, D et al. (2008): Phytoplankton calcification in a high-CO2 world. Science, 320(5874), 336-340, https://doi.org/10.1126/science.1154122

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Abstract:
Ocean acidification in response to rising atmospheric CO2 partial pressures is widely expected to reduce calcification by marine organisms. From the mid-Mesozoic, coccolithophores have been major calcium carbonate producers in the world's oceans, today accounting for about a third of the total marine CaCO3 production. Here, we present laboratory evidence that calcification and net primary production in the coccolithophore species Emiliania huxleyi are significantly increased by high CO2 partial pressures. Field evidence from the deep ocean is consistent with these laboratory conclusions, indicating that over the past 220 years there has been a 40% increase in average coccolith mass. Our findings show that coccolithophores are already responding and will probably continue to respond to rising atmospheric CO2 partial pressures, which has important implications for biogeochemical modeling of future oceans and climate.
Keyword(s):
Biomass/Abundance/Elemental composition; Calcification/Dissolution; Chromista; Emiliania huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; North Atlantic; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species
Funding:
Seventh Framework Programme (FP7), grant/award no. 211384: European Project on Ocean Acidification
Sixth Framework Programme (FP6), grant/award no. 511106: European network of excellence for Ocean Ecosystems Analysis
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Experimental treatmentExp treatIglesias-Rodriguez, Debora
2Carbonate system computation flagCSC flagIglesias-Rodriguez, Debora
3SalinitySalIglesias-Rodriguez, Debora
4Temperature, waterTemp°CIglesias-Rodriguez, Debora
5pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
6Alkalinity, totalATµmol/kgIglesias-Rodriguez, DeboraPotentiometric titration, VINDTA (marianda)
7Carbon, inorganic, dissolvedDICµmol/kgIglesias-Rodriguez, DeboraPotentiometric titration, VINDTA (marianda)
8Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
9Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
10Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
11Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
12Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
13Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
14Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
15Calcification rate of calcium carbonate per algae cellCalc rate CaCO3pmol/#/dayIglesias-Rodriguez, Debora
16Growth rateµ#/dayIglesias-Rodriguez, DeboraCalculated
17Calcium carbonate in cellCaCO3 cellpmolIglesias-Rodriguez, DeboraFlow cytometry
18Particulate organic carbon, per cellPOC/cellpmol/#Iglesias-Rodriguez, DeboraElement analyser, Thermo Finnigan flash EA 1112
19Particulate organic carbon production per cellPOC prod/cellpg/#/dayIglesias-Rodriguez, Debora
20Carbon/Nitrogen ratioC/NIglesias-Rodriguez, Debora
21Emiliania huxleyiE. huxleyi#Iglesias-Rodriguez, DeboraCounting
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1237 data points

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