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Stemmer, Kristina; Nehrke, Gernot; Brey, Thomas (2013): Elevated CO2 levels do not affect the shell structure of the bivalve Arctica islandica from the western Baltic. PANGAEA, https://doi.org/10.1594/PANGAEA.835309, Supplement to: Stemmer, K et al. (2013): Elevated CO2 Levels do not Affect the Shell Structure of the Bivalve Arctica islandica from the Western Baltic. PLoS ONE, 8(7), e70106, https://doi.org/10.1371/journal.pone.0070106

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Abstract:
Shells of the bivalve Arctica islandica are used to reconstruct paleo-environmental conditions (e.g. temperature) via biogeochemical proxies, i.e. biogenic components that are related closely to environmental parameters at the time of shell formation. Several studies have shown that proxies like element and isotope-ratios can be affected by shell growth and microstructure. Thus it is essential to evaluate the impact of changing environmental parameters such as high pCO2 and consequent changes in carbonate chemistry on shell properties to validate these biogeochemical proxies for a wider range of environmental conditions. Growth experiments with Arctica islandica from the Western Baltic Sea kept under different pCO2 levels (from 380 to 1120 µatm) indicate no affect of elevated pCO2 on shell growth or crystal microstructure, indicating that A. islandica shows an adaptation to a wider range of pCO2 levels than reported for other species. Accordingly, proxy information derived from A. islandica shells of this region contains no pCO2 related bias.
Keyword(s):
Animalia; Arctica islandica; Baltic Sea; Benthic animals; Benthos; Bottles or small containers/Aquaria ( 20 L); Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mollusca; Single species; Temperate
Further details:
Lavigne, Héloise; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 is 2014-08-26.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1SpeciesSpeciesStemmer, Kristina
2IdentificationIDStemmer, Kristinacontinuous sample number
3Sample code/labelSample labelStemmer, Kristina
4Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmStemmer, Kristinatreatment
5Calcein markCalcein markStemmer, Kristina
6Growth rateµmm/dayStemmer, Kristinashell growth in height
7Growth rateµmm/dayStemmer, Kristinashell growth in thickness
8Alkalinity, totalATµmol/kgStemmer, KristinaPotentiometric titration
9Alkalinity, total, standard deviationAT std dev±Stemmer, KristinaPotentiometric titration
10SalinitySalStemmer, Kristina
11Salinity, standard deviationSal std dev±Stemmer, Kristina
12Temperature, waterTemp°CStemmer, Kristina
13Temperature, water, standard deviationTemp std dev±Stemmer, Kristina
14pHpHStemmer, KristinaPotentiometricNBS scale
15pH, standard deviationpH std dev±Stemmer, KristinaPotentiometric
16Carbon, inorganic, dissolvedDICµmol/kgStemmer, KristinaCalculated using CO2SYS
17Carbon, inorganic, dissolved, standard deviationDIC std dev±Stemmer, KristinaCalculated using CO2SYS
18Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmStemmer, KristinaCalculated using CO2SYS
19Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Stemmer, KristinaCalculated using CO2SYS
20Aragonite saturation stateOmega ArgStemmer, KristinaCalculated using CO2SYS
21Aragonite saturation state, standard deviationOmega Arg std dev±Stemmer, KristinaCalculated using CO2SYS
22Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
24Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
1377 data points

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