Data Description

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Citation:
Langer, G et al. (2012): Seawater carbonate chemistry, nutrients, and Calcidiscus leptoporus (strain RCC1135) growth rate and calcification rate during experiments, 2012. doi:10.1594/PANGAEA.778475,
Supplement to: Langer, Gerald; Oetjen, Kerstin; Brenneis, Tina (2012): Calcification of Calcidiscus leptoporus under nitrogen and phosphorus limitation. Journal of Experimental Marine Biology and Ecology, 413, 131-137, doi:10.1016/j.jembe.2011.11.028
Abstract:
The coccolithophore Calcidiscus leptoporus was grown in batch culture under nitrogen (N) as well as phosphorus (P) limitation. Growth rate, particulate inorganic carbon (PIC), particulate organic carbon (POC), particulate organic nitrogen (PON), and particulate organic phosphorus (POP) production were determined and coccolith morphology was analysed. While PON production decreased by 70% under N-limitation and POP production decreased by 65% under P-limitation, growth rate decreased by 33% under N- as well as P-limitation. POC as well as PIC production (calcification rate) increased by 27% relative to the control under P-limitation, and did not change under N-limitation. Coccolith morphology did not change in response to either P or N limitation. While these findings, supported by a literature survey, suggest that coccolith morphogenesis is not hampered by either P or N limitation, calcification rate might be. The latter conclusion is in apparent contradiction to our data. We discuss the reasons for this inference.
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
1Experimental treatment *Exp trtmLanger, Gerald *
2Sample ID *IDLanger, Gerald *
3Species *SpeciesLanger, Gerald *
4Salinity *SalLanger, Gerald *Tetra Con 325 salinity and temperature probe *
5Temperature, water *Temp°CLanger, Gerald *
6Light:Dark cycle *L:Dhh:hhLanger, Gerald *Measured *
7Radiation, photosynthetically active *PARµE/m2/sLanger, Gerald *
8Alkalinity, total *ATµmol/kgLanger, Gerald *Alkalinity, Gran titration (Gran, 1950) *
9Alkalinity, total, standard deviation *AT std dev±Langer, Gerald *
10pH *pHLanger, Gerald *pH meter (WTW 340i) *NBS scale
11pH, standard deviation *pH std dev±Langer, Gerald *
12Total carbon *TCµmol/kgLanger, Gerald *Seal Analytical QuAAtro analyser *
13Carbon, inorganic, total, standard deviation *TIC std dev±Langer, Gerald *
14Phosphate *PHSPHTµmol/kgLanger, Gerald *Autoanalyzer *
15Phosphate, standard deviation *PO4 std dev±Langer, Gerald *
16Nitrate *NO3mmol/kgLanger, Gerald *Autoanalyzer *
17Nitrate, standard deviation *NO3 std dev±Langer, Gerald *
18Calcidiscus leptoporus *C. leptoporus%Langer, Gerald *Normal
19Calcidiscus leptoporus, standard deviation *C. leptoporus std dev±Langer, Gerald *Normal
20Calcidiscus leptoporus *C. leptoporus%Langer, Gerald *Malformed
21Calcidiscus leptoporus, standard deviation *C. leptoporus std dev±Langer, Gerald *Malformed
22Calcidiscus leptoporus *C. leptoporus%Langer, Gerald *Incomplete
23Calcidiscus leptoporus, standard deviation *C. leptoporus std dev±Langer, Gerald *Incomplete
24Calcidiscus leptoporus *C. leptoporus%Langer, Gerald *Incompete and malformed
25Calcidiscus leptoporus, standard deviation *C. leptoporus std dev±Langer, Gerald *Incompete and malformed
26Growth rate *µ#/dayLanger, Gerald *
27Growth rate, standard deviation *µ std dev±Langer, Gerald *
28Carbon, organic, particulate, per cell *POCpg/cellLanger, Gerald *Element analyser CNS, EURO EA *
29Particulate organic carbon content per cell, standard deviation *POC cont std dev±Langer, Gerald *
30Production of particulate organic carbon *POC prodpg/cell/dayLanger, Gerald *Calculated, see reference(s) *
31Particulate organic carbon, production, standard deviation *POC prod std dev±Langer, Gerald *
32Carbon, inorganic, particulate, per cell *PICpg/#Langer, Gerald *Calculated, see reference(s) *
33Particulate inorganic carbon per cell, standard deviation *PIC in cell std dev±Langer, Gerald *
34Calcification rate of carbon *Calc rate Cpg/cell/hLanger, Gerald *
35Calcification rate, standard deviation *Calc rate std dev±Langer, Gerald *
36Particulate organic phosphorus per cell *POP cellpmol/#Langer, Gerald *Autoanalyzer *Original unit pg/cell, value devided by density
37Particulate organic phosphorus per cell, standard deviation *POP cell, std dev±Langer, Gerald *
38Production of particulate organic phosphorus *POP prodpmol/cell/dayLanger, Gerald *Calculated, see reference(s) *Original unit pg/cell/day, value devided by density
39Particulate organic phosphorus production *POP prodµmol/l/dayLanger, Gerald *Original unit pg/cell/day, value devided by density
40Particulate organic nitrogen per cell *PON cellpg/cellLanger, Gerald *Element analyser CNS, EURO EA *
41Particulate organic nitrogen per cell, standard deviation *PON cell std dev±Langer, Gerald *
42Production of particulate organic nitrogen *PON prodpg/cell/dayLanger, Gerald *Calculated, see reference(s) *
43Particulate organic nitrogen production, standard deviation *PON prod, std dev±Langer, Gerald *
44Carbonate system computation flag *CSC flagNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
45pH *pHNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *Total scale
46Carbon dioxide *CO2µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
47Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) *pCO2water_SST_wetµatmNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
48Fugacity of carbon dioxide (water) at sea surface temperature (wet air) *fCO2water_SST_wetµatmNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
49Bicarbonate ion *[HCO3]-µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
50Carbonate ion *[CO3]2-µmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
51Total carbon *TCµmol/kgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
52Aragonite saturation state *Omega ArgNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
53Calcite saturation state *Omega CalNisumaa, Anne-Marin *Calculated using seacarb after Nisumaa et al. (2010) *
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238 data points

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