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Kurihara, Haruko; Kato, Shoji; Ishimatsu, Atsushi (2007): Seawater carbonate chemistry and processes during experiments with Crassostrea gigas, 2007 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.721193, Supplement to: Kurihara, H et al. (2007): Effects of increased seawater pCO2 on early development of the oyster Crassostrea gigas. Aquatic Biology, 1(1), 91-98, https://doi.org/10.3354/ab00009

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Abstract:
This study demonstrated that the increased partial pressure of CO2 (pCO2) in seawater and the attendant acidification that are projected to occur by the year 2300 will severely impact the early development of the oyster Crassostrea gigas. Eggs of the oyster were artificially fertilized and incubated for 48 h in seawater acidified to pH 7.4 by equilibrating it with CO2-enriched air (CO2 group), and the larval morphology and degree of shell mineralization were compared with the control treatment (air-equilibrated seawater). Only 5% of the CO2 group developed into normal 'D-shaped' veliger larvae as compared with 68% in the control group, although no difference was observed between the groups up to the trochophore stage. Thus, during embryogenesis, the calcification process appears to be particularly affected by low pH and/or the low CaCO3 saturation state of high-CO2 seawater. Veliger larvae with fully mineralized shells accounted for 30% of the CO2-group larvae, compared with 72% in the control (p < 0.005). Shell mineralization was completely inhibited in 45% of the CO2-group larvae, but only in 16% of the control (p < 0.05). Normal D-shaped veligers of the control group exhibited increased shell length and height between 24 and 48 h after fertilization, while the few D-shaped veligers of the CO2 group showed no shell growth during the same period. Our results suggest that future ocean acidification will have deleterious impacts on the early development of marine benthic calcifying organisms.
Keyword(s):
Animalia; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Coast and continental shelf; Crassostrea gigas; Development; Growth/Morphology; Laboratory experiment; Mollusca; North Pacific; Pelagos; Single species; Temperate; Zooplankton
Funding:
Seventh Framework Programme (FP7), grant/award no. 211384: European Project on Ocean Acidification
Sixth Framework Programme (FP6), grant/award no. 511106: European network of excellence for Ocean Ecosystems Analysis
Event(s):
Kurihara_etal_07 * 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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Experimental treatmentExp treatKurihara, Haruko
2Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
3Temperature, waterTemp°CKurihara, Haruko
4SalinitySalKurihara, HarukoRefractometer (Atago 100-S)
5pHpHKurihara, HarukopH meter (Mettler Toledo, USA)NBS scale
6pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
7Alkalinity, totalATµmol/kgKurihara, HarukopH meter (PHM290, Radiometer)
8Carbon, inorganic, dissolvedDICµmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
9Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
10Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
11Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
12Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
13Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
14Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
15Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
16ProportionProp%Kurihara, Harukoof each stage
17Crassostrea gigas, larvae lengthC. gigas larv lµmKurihara, HarukoMeasured
18Crassostrea gigas, larvae heightC. gigas larv hµmKurihara, HarukoMeasured
19Crassostrea gigas, non mineralizedC. gigas non min%Kurihara, HarukoMeasured
20Crassostrea gigas, partially mineralizedC. gigas part min%Kurihara, HarukoMeasured
21Crassostrea gigas, fully mineralizedC. gigas ful min%Kurihara, HarukoMeasured
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2170 data points

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