Data Description

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Dueñas-Bohórquez, A et al. (2011): Seawater carbonate chemistry and impacts of calcium and carbonate ion concentration on Mg and Sr incorporation in cultured benthic foraminifera (Ammonia tepida and Heterostegina depressa), 2011. doi:10.1594/PANGAEA.770474,
Supplement to: Dueñas-Bohórquez, Adriana; Raitzsch, Markus; de Nooijer, Lennart Jan; Reichart, Gert-Jan (2011): Independent impacts of calcium and carbonate ion concentration on Mg and Sr incorporation in cultured benthic foraminifera. Marine Micropaleontology, 81(3-4), 122-130, doi:10.1016/j.marmicro.2011.08.002
Laboratory culture experiments were conducted to determine effects of seawater carbonate ion concentration ([CO32-]), and thereby calcite saturation state, on Mg and Sr incorporation into calcite of two species of shallow-water benthic foraminifera: Ammonia tepida and Heterostegina depressa. Impact on Mg and Sr incorporation by increased seawater [CO32-] and thereby higher calcite saturation state, is absent in either species. Comparison to results from a similar culturing experiment, in which calcite saturation state was varied as a function of [Ca2+], reveals that saturation state affects incorporation of Mg and Sr through calcium- rather than carbonate availability. The similarity in response by both species is surprising since the average Mg/Ca ratio is ~ 70 times higher in H. depressa than in A. tepida. Furthermore, these results suggest that the ions involved in biomineralization (i.e. Ca2+ and DIC) are processed by separate cellular transport mechanisms. The similar response of Mg and Sr incorporation in this study suggests that only differences in the Ca2+ transport mechanism affect divalent cation partitioning.
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).
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Species *SpeciesDueñas-Bohórquez, Adriana *
2Identification *IDDueñas-Bohórquez, Adriana *
3Salinity *SalDueñas-Bohórquez, Adriana *
4Salinity, standard deviation *Sal std dev±Dueñas-Bohórquez, Adriana *
5Temperature, water *Temp°CDueñas-Bohórquez, Adriana *
6Temperature, standard deviation *T std dev±Dueñas-Bohórquez, Adriana *
7Alkalinity, total *ATµmol/kgDueñas-Bohórquez, Adriana *Measured *
8Alkalinity, total, standard deviation *AT std dev±Dueñas-Bohórquez, Adriana *
9Carbon, inorganic, dissolved *DICµmol/kgDueñas-Bohórquez, Adriana *Measured *
10Carbon, inorganic, dissolved, standard deviation *DIC std dev±Dueñas-Bohórquez, Adriana *
11pH *pHDueñas-Bohórquez, Adriana *Calculated using CO2SYS *
12pH, standard deviation *pH std dev±Dueñas-Bohórquez, Adriana *
13Carbonate ion *[CO3]2-µmol/kgDueñas-Bohórquez, Adriana *Calculated using CO2SYS *
14Carbonate ion, standard deviation *[CO3]2- std dev±Dueñas-Bohórquez, Adriana *
15Calcite saturation state *Omega CalDueñas-Bohórquez, Adriana *Calculated using CO2SYS *
16Calcite saturation state, standard deviation *Omega Cal std dev±Dueñas-Bohórquez, Adriana *
17Number of specimens *No spec#Dueñas-Bohórquez, Adriana *Beginning of experiment
18Number of specimens *No spec#Dueñas-Bohórquez, Adriana *Living at the end of experiment
19Number of specimens *No spec#Dueñas-Bohórquez, Adriana *Living juveniles at the end of experiment
20Number of specimens *No spec#Dueñas-Bohórquez, Adriana *Specimens analysed
21Ammonia tepida, chambers added *A. tepida chambers#Dueñas-Bohórquez, Adriana *
22Ammonia tepida, chambers added per individual *A. tepida chambers/ind#/#Dueñas-Bohórquez, Adriana *
23Rows of chambers added *Rows chamb#Dueñas-Bohórquez, Adriana *of Heterostegian depressa
24Rows of chambers added per individual *Rows chamb/ind#/#Dueñas-Bohórquez, Adriana *of Heterostegian depressa
25Replicates *Repl#Dueñas-Bohórquez, Adriana *
26Ammonia tepida, magnesium/calcium ratio *A. tepida Mg/Cammol/molDueñas-Bohórquez, Adriana *
27Ammonia tepida, magnesium/calcium ratio, standard deviation *A. tepida Mg/Ca std dev±Dueñas-Bohórquez, Adriana *
28Heterostegina depressa, magnesium/calcium ratio *H. depressa Mg/Cammol/molDueñas-Bohórquez, Adriana *
29Heterostegina depressa, magnesium/calcium ratio, standard deviation *H. depressa Mg/Ca std dev±Dueñas-Bohórquez, Adriana *
30Ammonia tepida, strontium/calcium ratio *A. tepida Sr/Cammol/molDueñas-Bohórquez, Adriana *
31Ammonia tepida, strontium/calcium ratio, standard deviation *A. tepida Sr/Ca std dev±Dueñas-Bohórquez, Adriana *
32Heterostegina depressa, strontium/calcium ratio *H. depressa Sr/Cammol/molDueñas-Bohórquez, Adriana *
33Heterostegina depressa, strontium/calcium ratio, standard deviation *H. depressa Sr/Ca std dev±Dueñas-Bohórquez, Adriana *
34Carbonate system computation flag *CSC flagNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
35pH *pHNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *Total scale
36Carbon dioxide *CO2µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
37Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
38Fugacity of carbon dioxide (water) at sea surface temperature (wet air) *fCO2water_SST_wetµatmNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
39Bicarbonate ion *[HCO3]-µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
40Carbonate ion *[CO3]2-µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
41Aragonite saturation state *Omega ArgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
42Calcite saturation state *Omega CalNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
282 data points

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