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Birk, Matthew A; McLean, Erin L; Seibel, Brad A (2018): Seawater carbonate chemistry and metabolic rate, ventilation rate and critical oxygen partial pressure of Dosidicus gigas and Doryteuthis pealeii [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.909481, Supplement to: Birk, MA et al. (2018): Ocean acidification does not limit squid metabolism via blood oxygen supply. Journal of Experimental Biology, 221(19), jeb187443, https://doi.org/10.1242/jeb.187443

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Abstract:
Ocean acidification is hypothesized to limit the performance of squid owing to their exceptional oxygen demand and pH sensitivity of blood–oxygen binding, which may reduce oxygen supply in acidified waters. The critical oxygen partial pressure (Pcrit), the PO2 below which oxygen supply cannot match basal demand, is a commonly reported index of hypoxia tolerance. Any CO2-induced reduction in oxygen supply should be apparent as an increase in Pcrit. In this study, we assessed the effects of CO2 (46–143 Pa; 455–1410 μatm) on the metabolic rate and Pcrit of two squid species - Dosidicus gigas and Doryteuthis pealeii – through manipulative experiments. We also developed a model, with inputs for hemocyanin pH sensitivity, blood PCO2 and buffering capacity, that simulates blood oxygen supply under varying seawater CO2 partial pressures. We compare model outputs with measured Pcrit in squid. Using blood–O2 parameters from the literature for model inputs, we estimated that, in the absence of blood acid–base regulation, an increase in seawater PCO2 to 100 Pa (1000 μatm) would result in a maximum drop in arterial hemocyanin–O2 saturation by 1.6% at normoxia and a Pcrit increase of 0.5 kPa. Our live-animal experiments support this supposition, as CO2 had no effect on measured metabolic rate or Pcrit in either squid species.
Keyword(s):
Animalia; Behaviour; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Doryteuthis pealeii; Dosidicus gigas; Growth/Morphology; Laboratory experiment; Mollusca; Nekton; North Atlantic; Respiration; Single species; Temperate
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2019): seacarb: seawater carbonate chemistry with R. R package version 3.2.12. 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, 2019) 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 by seacarb is 2019-11-20.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeBirk, Matthew Astudy
2SpeciesSpeciesBirk, Matthew A
3Registration number of speciesReg spec noBirk, Matthew A
4Uniform resource locator/link to referenceURL refBirk, Matthew AWoRMS Aphia ID
5IdentificationIDBirk, Matthew ARun
6MassMassgBirk, Matthew A
7Length, mantlel mantlemmBirk, Matthew ADorsal
8GenderGenderBirk, Matthew A
9Temperature, waterTemp°CBirk, Matthew A
10SalinitySalBirk, Matthew A
11pHpHBirk, Matthew Atotal scale
12Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmBirk, Matthew A
13Metabolic rate of oxygenMR O2µmol/h/gBirk, Matthew ARoutine
14Oxygen, partial pressure, criticalpO2 critkPaBirk, Matthew A
15Oxygen, partial pressurepO2kPaBirk, Matthew A
16Ventilation rateVentilationHzBirk, Matthew A
17Alkalinity, totalATµmol/kgBirk, Matthew A
18Alkalinity, total, standard deviationAT std dev±Birk, Matthew A
19Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Carbon, inorganic, dissolvedDICmg/lYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2908 data points

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