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Comeau, Steeve; Alliouane, Samir; Gattuso, Jean-Pierre (2012): Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.830119, Supplement to: Comeau, S et al. (2012): Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina. Marine Ecology Progress Series, 456, 279-284, https://doi.org/10.3354/meps09696

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Published: 2012 (exact date unknown) • DOI registered: 2014-04-29

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Abstract:
Pteropods are planktonic mollusks that play an important role in the food web of various ecosystems, particularly at high latitudes. Because they produce an aragonitic shell, pteropods are expected to be very sensitive to ocean acidification driven by anthropogenic CO2 emissions. The effect of ocean acidification was investigated using juveniles of the Arctic pteropod Limacina helicina from the Canada Basin of the Arctic Ocean. The animals were maintained in 3 controlled pH conditions (total scale pH [pHT] = 8.05, 7.90 or 7.75) for 8 d, and their mortality and the linear extension of their shell were monitored. The pH did not impact the mortality rate, but the linear extension of the shell decreased as a function of declining pH. Surprisingly, the pteropods were still able to extend their shell at an aragonite saturation state as low as 0.6. Nevertheless, dissolution marks were visible on the whole shell, indicating that calcium carbonate dissolution had also occurred, casting doubts on the ability of the pteropods to maintain a positive balance between precipitation and dissolution of calcium carbonate under corrosive conditions.
Keyword(s):
Animalia; Arctic; Bottles or small containers/Aquaria (<20 L); Growth/Morphology; Laboratory experiment; Limacina helicina; Mollusca; Open ocean; Pelagos; Polar; Single species; Zooplankton
Further details:
Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4 [webpage]. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: 78.720000 * Longitude: -104.790000
Date/Time Start: 2010-04-01T00:00:00 * Date/Time End: 2010-04-30T00:00:00
Event(s):
Deer_Bay * Latitude: 78.720000 * Longitude: -104.790000 * Date/Time Start: 2010-04-01T00:00:00 * Date/Time End: 2010-04-30T00:00:00 * Method/Device: Experiment (EXP)
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). The date of carbonate chemistry calculation by seacarb is 2014-03-31.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesComeau, Steeve
2TreatmentTreatComeau, Steeve
3Extension/diameter ratioExt/diamComeau, Steeve
4SalinitySalComeau, Steeve
5Temperature, waterTemp°CComeau, Steeve
6pH, total scalepHTComeau, SteevePotentiometrictotal scale, at the start
7pH, total scalepHTComeau, SteevePotentiometrictotal scale, at the end
8Alkalinity, totalATµmol/kgComeau, SteevePotentiometric titrationat the start
9Alkalinity, totalATµmol/kgComeau, SteevePotentiometric titrationat the end
10pH, total scalepHTComeau, SteeveCalculatedtotal scale, mean
11pH, standard deviationpH std dev±Comeau, SteeveCalculated
12Alkalinity, totalATµmol/kgComeau, SteeveCalculatedmean
13Alkalinity, total, standard deviationAT std dev±Comeau, SteeveCalculated
14Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
15Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
16Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
17Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
18Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Calcite 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:
2156 data points

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