Data Description

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Citation:
Langer, G; Bode, M (2011): Seawater carbonate chemistry, growth rate and morphology of Calcidiscus leptoporus (RCC1135) during experiments, 2011. doi:10.1594/PANGAEA.763286,
Supplement to: Langer, Gerald; Bode, Maya (2011): CO2 mediation of adverse effects of seawater acidification in Calcidiscus leptoporus. Geochemistry, Geophysics, Geosystems, 12(5), Q05001, doi:10.1029/2010GC003393
Abstract:
The coccolithophore Calcidiscus leptoporus (strain RCC1135) was grown in dilute batch culture at CO2 levels ranging from ~200 to ~1600 µatm. Increasing CO2 concentration led to an increased percentage of malformed coccoliths and eventually (at ~1500 µatm CO2) to aggregation of cells. Carbonate chemistry of natural seawater was manipulated in three ways: first, addition of acid; second, addition of a HCO3/CO3 solution; and third, addition of both acid and HCO3/CO3 solution. The data set allowed the disentangling of putative effects of the different parameters of the carbonate system. It is concluded that CO2 is the parameter of the carbonate system which causes both aberrant coccolithogenesis and aggregation of cells.
Project(s):
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 InvestigatorMethodComment
1Identification *IDLanger, Gerald *
2Experimental treatment *Exp trtmLanger, Gerald *
3Salinity *SalLanger, Gerald *
4Temperature, water *Temp°CLanger, Gerald *Conductivity meter (WTW, Weilheim, Gemany) *
5Carbon dioxide *CO2µmol/kgLanger, Gerald *Calculated using CO2SYS *
6Bicarbonate ion *[HCO3]-µmol/kgLanger, Gerald *Calculated using CO2SYS *
7Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmLanger, Gerald *Calculated using CO2SYS *
8Carbonate ion *[CO3]2-µmol/kgLanger, Gerald *Calculated using CO2SYS *
9Total carbon *TCµmol/kgLanger, Gerald *Photometrically using autoanalyzer QUAATRO *
10Alkalinity, total *ATµmol/kgLanger, Gerald *Alkalinity, Gran titration (Gran, 1950) *
11pH *pHLanger, Gerald *Conductivity meter (WTW, Weilheim, Gemany) *Total scale
12Calcite saturation state *Omega CalLanger, Gerald *Calculated using CO2SYS *
13Carbon, inorganic, particulate, per cell *PICpg/#Langer, Gerald *Calculated, see reference(s) *
14Particulate inorganic carbon per cell, standard deviation *PIC in cell std dev±Langer, Gerald *
15Carbon, organic, particulate, per cell *POCpg/cellLanger, Gerald *Gas chromatography (EURO EA Elemental Analyser, EUROVECTOR) *
16Particulate organic carbon content per cell, standard deviation *POC cont std dev±Langer, Gerald *
17Particulate inorganic carbon production per day *PIC prodpg/cell/dayLanger, Gerald *Calculated, see reference(s) *
18Particulate inorganic carbon, production, standard deviation *PIC prod std dev±Langer, Gerald *
19Production of particulate organic carbon *POC prodpg/cell/dayLanger, Gerald *Calculated, see reference(s) *
20Particulate organic carbon, production, standard deviation *POC prod std dev±Langer, Gerald *
21Particulate inorganic carbon/particulate organic carbon ratio *PIC/POC ratioLanger, Gerald *Calculated *
22Particulate inorganic carbon/particulate organic carbon ratio, standard deviation *PIC/POC ratio std dev±Langer, Gerald *
23Growth rate *µ#/dayLanger, Gerald *Calculated, see reference(s) *
24Growth rate, standard deviation *µ std dev±Langer, Gerald *
25Calcidiscus leptoporus, morphology *C. leptoporus morph%Langer, Gerald *Normal
26Calcidiscus leptoporus, morphology, standard deviation *C. leptoporus morph std dev±Langer, Gerald *Normal
27Calcidiscus leptoporus, morphology *C. leptoporus morph%Langer, Gerald *Malformed
28Calcidiscus leptoporus, morphology, standard deviation *C. leptoporus morph std dev±Langer, Gerald *Malformed
29Calcidiscus leptoporus, morphology *C. leptoporus morph%Langer, Gerald *Incomplete
30Calcidiscus leptoporus, morphology, standard deviation *C. leptoporus morph std dev±Langer, Gerald *Incomplete
31Calcidiscus leptoporus, morphology *C. leptoporus morph%Langer, Gerald *Malformed and incomplete
32Calcidiscus leptoporus, morphology, standard deviation *C. leptoporus morph std dev±Langer, Gerald *Malformed and incomplete
33Carbonate system computation flag *CSC flagNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
34Carbon dioxide *CO2µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
35Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
36Fugacity of carbon dioxide (water) at sea surface temperature (wet air) *fCO2water_SST_wetµatmNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
37Bicarbonate ion *[HCO3]-µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
38Carbonate ion *[CO3]2-µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
39Total carbon *TCµmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
40Aragonite saturation state *Omega ArgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
41Calcite saturation state *Omega CalNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
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