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Edmunds, Peter J; Brown, Darren; Moriarty, Vincent (2012): Calcification rate of massive Porites spp. and Porites rus in the experiment of Moorea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.820312, Supplement to: Edmunds, PJ et al. (2012): Interactive effects of ocean acidification and temperature on two scleractinian corals from Moorea, French Polynesia. Global Change Biology, 18(7), 2173-2183, https://doi.org/10.1111/j.1365-2486.2012.02695.x

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Abstract:
This study tested the hypothesis that the response of corals to temperature and pCO2 is consistent between taxa. Juvenile massive Porites spp. and branches of P. rus from the back reef of Moorea were incubated for 1 month under combinations of temperature (29.3 °C and 25.6 °C) and pCO2 (41.6 Pa and 81.5 Pa) at an irradiance of 599 µmol quanta/m/s. Using microcosms and CO2 gas mixing technology, treatments were created in a partly nested design (tanks) with two between-plot factors (temperature and pCO2), and one within-plot factor (taxon); calcification was used as a dependent variable. pCO2 and temperature independently affected calcification, but the response differed between taxa. Massive Porites spp. was largely unaffected by the treatments, but P. rus grew 50% faster at 29.3 °C compared with 25.6 °C, and 28% slower at 81.5 Pa vs. 41.6 Pa CO2. A compilation of studies placed the present results in a broader context and tested the hypothesis that calcification for individual coral genera is independent of pH, [HCO3]-, and [CO3]2-. Unlike recent reviews, this analysis was restricted to studies reporting calcification in units that could be converted to nmol CaCO3/cm**2/h. The compilation revealed a high degree of variation in calcification as a function of pH, [HCO3]-, and [CO3]2-, and supported three conclusions: (1) studies of the effects of ocean acidification on corals need to pay closer attention to reducing variance in experimental outcomes to achieve stronger synthetic capacity, (2) coral genera respond in dissimilar ways to pH, [HCO3]-, and [CO3]2-, and (3) calcification of massive Porites spp. is relatively resistant to short exposures of increased pCO2, similar to that expected within 100 y.
Keyword(s):
Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Laboratory experiment; Porites rus; Porites sp.; Single species; South Pacific; Temperature; Tropical
Further details:
Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: -17.476900 * Longitude: -149.815300
Date/Time Start: 2011-04-01T00:00:00 * Date/Time End: 2011-08-31T00:00:00
Minimum Elevation: -4.0 m * Maximum Elevation: -2.0 m
Event(s):
Moorea * Latitude: -17.476900 * Longitude: -149.815300 * Date/Time Start: 2011-04-01T00:00:00 * Date/Time End: 2011-08-31T00:00:00 * Elevation Start: -2.0 m * Elevation End: -4.0 m * Location: French Polynesia * 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 2013-11-29.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TreatmentTreatEdmunds, Peter JHT-HCO2=High Temp High CO2, HT-LCO2=High Temp Low CO2, LT-HCO2=Low Temp High CO2, LT-LCO2=Low Temp Low CO2
2SpeciesSpeciesEdmunds, Peter J
3Sample IDSample IDEdmunds, Peter J
4Sample code/labelSample labelEdmunds, Peter J
5Surface areaSAcm2Edmunds, Peter J
6Calcification rate of calcium carbonateCalc rate CaCO3mg/cm2/dayEdmunds, Peter J
7Temperature, waterTemp°CEdmunds, Peter JTemperature in tank
8Temperature, waterTemp°CEdmunds, Peter JLaboratory temperature
9SalinitySalEdmunds, Peter J
10pHpHEdmunds, Peter JSpectrophotometricpH measured at laboratory temperature, total scale. Standard error less than 0.1
11Alkalinity, totalATµmol/kgEdmunds, Peter JPotentiometric titration
12Alkalinity, total, standard errorAT std e±Edmunds, Peter JPotentiometric titration
13Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetPaEdmunds, Peter JCalculated using CO2SYS
14Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard errorpCO2water_SST_wet std e±Edmunds, Peter JCalculated using CO2SYS
15Aragonite saturation stateOmega ArgEdmunds, Peter JCalculated using CO2SYS
16Aragonite saturation state, standard errorOmega Arg std e±Edmunds, Peter JCalculated using CO2SYS
17Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
18pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)In situ pH, total scale
19Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, 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)
22Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Calcite 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:
2080 data points

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