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Isari, Stamatina; Zervoudaki, Soultana; Peters, J; Papantoniou, Georgia; Pelejero, Carles; Saiz, Enric (2016): Lack of evidence for elevated CO2-induced bottom-up effects on marine copepods: a dinoflagellate-calanoid prey-predator pair [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.848379, Supplement to: Isari, S et al. (2015): Lack of evidence for elevated CO2-induced bottom-up effects on marine copepods: a dinoflagellate-calanoid prey-predator pair. ICES Journal of Marine Science, https://doi.org/10.1093/icesjms/fsv078

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Abstract:
Rising levels of atmospheric CO2 are responsible for a change in the carbonate chemistry of seawater with associated pH drops (acidification) projected to reach 0.4 units from 1950 to 2100. We investigated possible indirect effects of seawater acidification on the feeding, fecundity, and hatching success of the calanoid copepod Acartia grani, mediated by potential CO2-induced changes in the nutritional characteristics of their prey. We used as prey the autotrophic dinoflagellate Heterocapsa sp., cultured at three distinct pH levels (control: 8.17, medium: 7.96, and low: 7.75) by bubbling pure CO2 via a computer automated system. Acartia grani adults collected from a laboratory culture were acclimatized for 3 d at food suspensions of Heterocapsa from each pH treatment (ca. 500 cells/ml; 300 mg C/l). Feeding and egg production rates of the preconditioned females did not differ significantly among the three Heterocapsa diets. Egg hatching success, monitored once per day for the 72 h, did not reveal significant difference among treatments. These results are in agreement with the lack of difference in the cellular stoichiometry (C : N, C : P, and N : P ratios) and fatty acid concentration and composition encountered between the three tested Heterocapsa treatments. Our findings disagree with those of other studies using distinct types of prey, suggesting that this kind of indirect influence of acidification on copepods may be largely associated with interspecific differences among prey items with regard to their sensitivity to elevated CO2 levels.
Keyword(s):
Acartia grani; Animalia; Arthropoda; Behaviour; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Chromista; Growth/Morphology; Heterocapsa sp.; Laboratory experiment; Laboratory strains; Myzozoa; Not applicable; Pelagos; Phytoplankton; Reproduction; Single species; Zooplankton
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 2015-07-16.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1FigureFigIsari, Stamatina
2TableTabIsari, Stamatina
3SpeciesSpeciesIsari, Stamatina
4TreatmentTreatIsari, Stamatina
5Time in daysTimedaysIsari, Stamatina
6Cell densityCells#/mlIsari, Stamatinaln (cells/ml)
7Cells equivalent spherical diameterESDcmIsari, Stamatina
8Clearance rateCRml/#/dayIsari, Stamatina
9Clearance rate, standard deviationCR std dev±Isari, Stamatina
10Ingestion rate per individualIR#/#/dayIsari, Stamatina
11Ingestion rate, standard deviationIR std dev±Isari, Stamatina
12Egg production rate per femaleEPR#/female/dayIsari, Stamatina
13Egg production rate, standard deviationEPR std dev±Isari, Stamatina
14Carbon ingestion rate per individualIR Cµg/#/dayIsari, Stamatina
15Carbon ingestion rate, standard deviationIR C std dev±Isari, Stamatina
16Nitrogen ingestion rate per individualIR Nµg/#/dayIsari, Stamatina
17Nitrogen ingestion rate, standard deviationIR N std dev±Isari, Stamatina
18Phosphorus ingestion rate per individualIR Pµg/#/dayIsari, Stamatina
19Phosphorus ingestion rate, standard deviationIR P std dev±Isari, Stamatina
20Gross growth efficiencyGGE%Isari, Stamatinain carbon
21Gross growth efficiency, standard deviationGGE std dev±Isari, Stamatinain carbon
22Gross growth efficiencyGGE%Isari, Stamatinain nitrogen
23Gross growth efficiency, standard deviationGGE std dev±Isari, Stamatinain nitrogen
24Gross growth efficiencyGGE%Isari, Stamatinain phosphorus
25Gross growth efficiency, standard deviationGGE std dev±Isari, Stamatinain phosphorus
26Cell biovolumeCell biovolµm3Isari, Stamatina
27Cell biovolume, standard deviationCell biovol std dev±Isari, Stamatina
28Carbon per cellC/cellpg/#Isari, Stamatina
29Carbon per cell, standard deviationC/cell std dev±Isari, Stamatina
30Nitrogen per cellN/cellpg/#Isari, Stamatina
31Nitrogen per cell, standard deviationN/cell std dev±Isari, Stamatina
32Phosphorus per cellP/cellpg/#Isari, Stamatina
33Phosphorus per cell, standard deviationP/cell std dev±Isari, Stamatina
34Carbon/Nitrogen ratioC/NIsari, Stamatina
35Carbon/Nitrogen ratio, standard deviationC/N std dev±Isari, Stamatina
36Carbon/Phosphorus ratioC/PIsari, Stamatina
37Carbon/Phosphorus ratio, standard deviationC/P std dev±Isari, Stamatina
38Nitrogen/Phosphorus ratioN/PIsari, Stamatina
39Nitrogen/Phosphorus ratio, standard deviationN/P std dev±Isari, Stamatina
40GroupGroupIsari, Stamatina
41Fatty acid contentFA conpg/#Isari, Stamatina
42Fatty acid content, standard deviationFA con std dev±Isari, Stamatina
43PercentagePerc%Isari, Stamatina% of total FA
44Percentage, standard deviationPerc std dev±Isari, Stamatina% of total FA
45Temperature, waterTemp°CIsari, Stamatina
46SalinitySalIsari, Stamatina
47pHpHIsari, StamatinaPotentiometricNBS scale
48pH, standard deviationpH std dev±Isari, StamatinaPotentiometricNBS scale
49pHpHIsari, StamatinaCalculated using SWCO2 (Hunter, 2007)total scale
50pH, standard deviationpH std dev±Isari, StamatinaCalculated using SWCO2 (Hunter, 2007)total scale
51Alkalinity, totalATµmol/kgIsari, StamatinaPotentiometric titration
52Alkalinity, total, standard deviationAT std dev±Isari, StamatinaPotentiometric titration
53Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmIsari, StamatinaCalculated using CO2SYS
54Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Isari, StamatinaCalculated using CO2SYS
55Dry air column-averaged mixing ratio of carbon dioxideXCO2ppmvIsari, StamatinaCalculated using CO2SYS
56Dry air column-averaged mixing ratio of carbon dioxide, standard deviationXCO2 std dev±Isari, StamatinaCalculated using CO2SYS
57Carbon, inorganic, dissolvedDICµmol/kgIsari, StamatinaCalculated using CO2SYS
58Carbon, inorganic, dissolved, standard deviationDIC std dev±Isari, StamatinaCalculated using CO2SYS
59Bicarbonate ion[HCO3]-µmol/kgIsari, StamatinaCalculated using CO2SYS
60Bicarbonate ion, standard deviation[HCO3]- std dev±Isari, StamatinaCalculated using CO2SYS
61Carbonate ion[CO3]2-µmol/kgIsari, StamatinaCalculated using CO2SYS
62Carbonate ion, standard deviation[CO3]2- std dev±Isari, StamatinaCalculated using CO2SYS
63Aragonite saturation stateOmega ArgIsari, StamatinaCalculated using CO2SYS
64Aragonite saturation state, standard deviationOmega Arg std dev±Isari, StamatinaCalculated using CO2SYS
65Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
66pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
67Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
68Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
69Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
70Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
71Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
72Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
73Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
74Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3726 data points

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