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Meng, Yuan; Guo, Zhenbin; Yao, Haimin; Yeung, Kelvin W K; Thiyagarajan, Vengatesen (2019): Seawater carbonate chemistry and shell microstructure, mechanical properties of an edible estuarine oyster [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.908459, Supplement to: Meng, Y et al. (2019): Calcium carbonate unit realignment under acidification: A potential compensatory mechanism in an edible estuarine oyster. Marine Pollution Bulletin, 139, 141-149, https://doi.org/10.1016/j.marpolbul.2018.12.030

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Published: 2019-11-14 • DOI registered: 2019-12-20

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Abstract:
Ocean acidification (OA) is well-known for impairing marine calcification; however, the end response of several essential species to this perturbation remains unknown. Decreased pH and saturation levels (Omega) of minerals under OA is projected to alter shell crystallography and thus to reduce shell mechanical properties. This study examined this hypothesis using a commercially important estuarine oyster Magallana hongkongensis. Although shell damage occurred on the outmost prismatic layer and the undying myostracum at decreased pH 7.6 and 7.3, the major foliated layer was relatively unharmed. Oysters maintained their shell hardness and stiffness through altered crystal unit orientation under pH 7.6 conditions. However, under the undersaturated conditions (Omega Cal ~ 0.8) at pH 7.3, the realigned crystal units in foliated layer ultimately resulted in less stiff shells which indicated although estuarine oysters are mechanically resistant to unfavorable calcification conditions, extremely low pH condition is still a threat to this essential species.
Keyword(s):
Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria (<20 L); Brackish waters; Growth/Morphology; Laboratory experiment; Magallana hongkongensis; Mollusca; North Pacific; Other studied parameter or process; Single species; Tropical
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)
Coverage:
Latitude: 21.333330 * Longitude: 110.666670
Date/Time Start: 2016-06-01T00:00:00 * Date/Time End: 2016-06-30T00:00:00
Event(s):
Zhanjiang * Latitude: 21.333330 * Longitude: 110.666670 * Date/Time Start: 2016-06-01T00:00:00 * Date/Time End: 2016-06-30T00:00:00 * Method/Device: Experiment (EXP)
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 2019-11-08.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeThiyagarajan, Vengatesenstudy
2SpeciesSpeciesThiyagarajan, Vengatesen
3Registration number of speciesReg spec noThiyagarajan, Vengatesen
4Uniform resource locator/link to referenceURL refThiyagarajan, VengatesenWoRMS Aphia ID
5TreatmentTreatThiyagarajan, Vengatesen
6Area porosityArea poros%Thiyagarajan, Vengatesen
7StiffnessStiffnessGPaThiyagarajan, Vengatesen
8StiffnessStiffnessGPaThiyagarajan, VengatesenModulus
9HardnessHardnessGPaThiyagarajan, Vengatesen
10DensityDensityg/cm3Thiyagarajan, Vengatesen
11VolumeVol%Thiyagarajan, Vengatesendensity less than 1 g/cm**3
12VolumeVol%Thiyagarajan, Vengatesendensity from 1 to 2 g/cm**3
13VolumeVol%Thiyagarajan, Vengatesendensity higher than 2 g/cm**3
14pH, NBS scalepH NBSThiyagarajan, VengatesenPotentiometricNBS scale
15pH, standard deviationpH std dev±Thiyagarajan, VengatesenPotentiometricNBS scale
16Temperature, waterTemp°CThiyagarajan, Vengatesen
17Temperature, water, standard deviationTemp std dev±Thiyagarajan, Vengatesen
18SalinitySalThiyagarajan, Vengatesen
19Salinity, standard deviationSal std dev±Thiyagarajan, Vengatesen
20Alkalinity, totalATµmol/kgThiyagarajan, VengatesenPotentiometric titration
21Alkalinity, total, standard deviationAT std dev±Thiyagarajan, VengatesenPotentiometric titration
22Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmThiyagarajan, VengatesenCalculated using CO2SYS
23Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Thiyagarajan, VengatesenCalculated using CO2SYS
24Carbonate ion[CO3]2-µmol/kgThiyagarajan, VengatesenCalculated using CO2SYS
25Carbonate ion, standard deviation[CO3]2- std dev±Thiyagarajan, VengatesenCalculated using CO2SYS
26Calcite saturation stateOmega CalThiyagarajan, VengatesenCalculated using CO2SYS
27Calcite saturation state, standard deviationOmega Cal std dev±Thiyagarajan, VengatesenCalculated using CO2SYS
28Aragonite saturation stateOmega ArgThiyagarajan, VengatesenCalculated using CO2SYS
29Aragonite saturation state, standard deviationOmega Arg std dev±Thiyagarajan, VengatesenCalculated using CO2SYS
30Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31pH, total scalepHTYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
32Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, Yan
35Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Calcite 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:
918 data points

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