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Hildebrandt, Nicole; Niehoff, Barbara; Sartoris, Franz-Josef (2014): Performance of the Arctic calanoid copepods Calanus glacialis and C. hyperboreus under elevated pCO2 and temperatures. doi:10.1594/PANGAEA.834091,
Supplement to: Hildebrandt, N et al. (2014): Long-term effects of elevated CO2 and temperature on the Arctic calanoid copepods Calanus glacialis and C. hyperboreus. Marine Pollution Bulletin, 80(1-2), 59-70, doi:10.1016/j.marpolbul.2014.01.050

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Abstract:
The sensitivity of copepods to ocean acidification (OA) and warming may increase with time, however, studies >10 days and on synergistic effects are rare. We therefore incubated late copepodites and females of two dominant Arctic species, Calanus glacialis and Calanus hyperboreus, at 0 °C at 390 and 3000 µatm pCO2 for several months in fall/winter 2010. Respiration rates, body mass and mortality in both species and life stages did not change with pCO2. To detect synergistic effects, in 2011 C. hyperboreus females were kept at different pCO2 and temperatures (0, 5, 10 °C). Incubation at 10 °C induced sublethal stress, which might have overruled effects of pCO2. At 5 °C and 3000 µatm, body carbon was significantly lowest indicating a synergistic effect. The copepods, thus, can tolerate pCO2 predicted for a future ocean, but in combination with increasing temperatures they could be sensitive to OA.
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 2014-07-16.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1FigureFigHildebrandt, Nicole
2SpeciesSpeciesHildebrandt, Nicole
3Life stageLife stageHildebrandt, Nicole
4Experiment dayExp daydayHildebrandt, Nicole
5TreatmentTreatHildebrandt, NicoleCO2
6Treatment: temperatureTreat temp°CHildebrandt, Nicole
7LengthlmmHildebrandt, NicoleProsome
8Dry massDry mgHildebrandt, Nicole
9Carbon massCmgHildebrandt, Nicole
10Nitrogen massNmgHildebrandt, Nicole
11Carbon/Nitrogen ratioC/NHildebrandt, Nicole
12ReplicatesRepl#Hildebrandt, Nicole
13Oxygen consumptionO2 conml/g/minHildebrandt, Nicole
14Gonadal stageGon stgHildebrandt, Nicole
15MortalityMortality%Hildebrandt, Nicole
16Temperature, waterTemp°CHildebrandt, Nicole
17Temperature, water, standard deviationTemp std dev±Hildebrandt, Nicole
18SalinitySalHildebrandt, Nicole
19Salinity, standard deviationSal std dev±Hildebrandt, Nicole
20pHpHHildebrandt, NicolePotentiometricfree scale
21pH, standard deviationpH std dev±Hildebrandt, NicolePotentiometricfree scale
22Carbon, inorganic, dissolvedDICµmol/kgHildebrandt, NicoleCoulometric titration
23Carbon, inorganic, dissolved, standard deviationDIC std dev±Hildebrandt, NicoleCoulometric titration
24Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHildebrandt, NicoleCalculated using CO2SYS
25Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Hildebrandt, NicoleCalculated using CO2SYS
26Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
28Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Alkalinity, totalATµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
51067 data points

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