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Thiyagarajan, Vengatesen; Ko, W K Ginger (2012): Seawater carbonate chemistry and larval growth response of the Portuguese oyster (Crassostrea angulata) in a laboratory experiment [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.831099, Supplement to: Thiyagarajan, V; Ko, WKG (2012): Larval growth response of the Portuguese oyster (Crassostrea angulata) to multiple climate change stressors. Aquaculture, 370-371, 90-95, https://doi.org/10.1016/j.aquaculture.2012.09.025

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Abstract:
Rising anthropogenic carbon dioxide (CO2) dissolving into coastal waters is decreasing the pH and carbonate ion concentration, thereby lowering the saturation state of calcium carbonate (CaCO3) minerals through a process named ocean acidification (OA). The unprecedented threats posed by such low pH on calcifying larvae of several edible oyster species have not yet been fully explored. Effects of low pH (7.9, 7.6, 7.4) on the early growth phase of Portuguese oyster (Crassostrea angulata) veliger larvae was examined at ambient salinity (34 ppt) and the low-salinity (27 ppt) treatment. Additionally, the combined effect of pH (8.1, 7.6), salinity (24 and 34 ppt) and temperature (24 °C and 30 °C) was examined using factorial experimental design. Surprisingly, the early growth phase from hatching to 5-day-old veliger stage showed high tolerance to pH 7.9 and pH 7.6 at both 34 ppt and 27 ppt. Larval shell area was significantly smaller at pH 7.4 only in low-salinity. In the 3-factor experiment, shell area was affected by salinity and the interaction between salinity and temperature but not by other combinations. Larvae produced the largest shell at the elevated temperature in low-salinity, regardless of pH. Thus the growth of the Portuguese oyster larvae appears to be robust to near-future pH level (> 7.6) when combined with projected elevated temperature and low-salinity in the coastal aquaculture zones of South China Sea.
Keyword(s):
Animalia; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Crassostrea angulata; Growth/Morphology; Laboratory experiment; Mollusca; North Pacific; Pelagos; Salinity; Single species; Temperate; Temperature; 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
Coverage:
Latitude: 26.098160 * Longitude: 119.796060
Date/Time Start: 2011-09-01T00:00:00 * Date/Time End: 2011-11-30T00:00:00
Event(s):
Fujian * Latitude: 26.098160 * Longitude: 119.796060 * Date/Time Start: 2011-09-01T00:00:00 * Date/Time End: 2011-11-30T00:00:00 * Method/Device: Experiment (EXP) * Comment: Adult C. angulata were collected from the coastal area in Fujian and transported by train (in an
hour or two) to Hong Kong in wet condition.
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 2014-03-24.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesThiyagarajan, Vengatesen
2FigureFigThiyagarajan, Vengatesen
3TreatmentTreatThiyagarajan, Vengatesen
4AreaAream2Thiyagarajan, Vengatesenlarval Shell
5Area, standard deviationArea std dev±Thiyagarajan, Vengatesenlarval Shell
6pHpHThiyagarajan, VengatesenNBS scale
7pH, standard deviationpH std dev±Thiyagarajan, VengatesenNBS scale
8Temperature, waterTemp°CThiyagarajan, Vengatesen
9Temperature, water, standard deviationTemp std dev±Thiyagarajan, Vengatesen
10SalinitySalThiyagarajan, Vengatesen
11Salinity, standard deviationSal std dev±Thiyagarajan, Vengatesen
12Alkalinity, totalATµmol/kgThiyagarajan, VengatesenPotentiometric titration
13Alkalinity, total, standard deviationAT std dev±Thiyagarajan, VengatesenPotentiometric titration
14Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmThiyagarajan, VengatesenCalculated using CO2SYS
15Carbonate ion[CO3]2-µmol/kgThiyagarajan, VengatesenCalculated using CO2SYS
16Calcite saturation stateOmega CalThiyagarajan, VengatesenCalculated using CO2SYS
17Aragonite saturation stateOmega ArgThiyagarajan, VengatesenCalculated using CO2SYS
18Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
20Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_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, dissolvedDICµmol/kgYang, 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)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
405 data points

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