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Houlbrèque, Fanny; Rodolfo-Metalpa, Riccardo; Jeffree, Ross; Oberhänsli, F; Teyssié, Jean-Louis; Boisson, Florence; AL-Trabeen, Khalid; Ferrier-Pagès, Christine (2011): Seawater carbonate chemistry, calcification and Zn uptake during experiments with coral Stylophora pistillata, 2011 [dataset]. Marine Environment Laboratories- International Atomic Energy Agency, PANGAEA, https://doi.org/10.1594/PANGAEA.756646

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Abstract:
Many studies have investigated the effect of an increase in pCO2 on coral calcification and photosynthesis but the physiological consequences are still relatively speculative. We investigated the effects of ocean acidification on zinc incorporation and gross calcification in the scleractinian coral Stylophora pistillata. Zn is an essential element for health and growth of corals. Colonies were maintained at normal pHT (8.1) and at two low-pH conditions (7.8 and 7.5) during 5 weeks. Corals were exposed to 65Zn dissolved in seawater to assess uptake rates of this element. After 5 weeks, 65Zn activity measured in the whole coral and in the two compartments: tissue and skeleton, differed significantly between pH conditions with concentration factors higher at pHT 8.1, compared to lower pH. Zn is therefore taken less efficiently by corals at reduced pH. Their gross calcification, as measured by 45Ca incorporation, photosynthesis and photosynthetic efficiency did not change with pH even at the lowest level.
Keyword(s):
Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Laboratory experiment; Other metabolic rates; Single species; Stylophora pistillata
Project(s):
European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)
European Project on Ocean Acidification (EPOCA)
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
Coverage:
Date/Time Start: 2009-03-20T00:00:00 * Date/Time End: 2009-05-06T00:00:00
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
1DATE/TIMEDate/TimeGeocode
2Experiment dayExp daydayHoulbrèque, Fanny
3Experimental treatmentExp treatHoulbrèque, Fanny
4SalinitySalHoulbrèque, Fanny
5Temperature, waterTemp°CHoulbrèque, Fanny
6pHpHHoulbrèque, FannypH meter (Metrohm, 826 pH mobile)Total scale
7Alkalinity, totalATµmol/kgHoulbrèque, FannyAlkalinity, Gran titration (Gran, 1950)
8Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHoulbrèque, FannyCalculated using SYSTAT
9Bicarbonate ion[HCO3]-µmol/kgHoulbrèque, FannyCalculated using SYSTAT
10Carbonate ion[CO3]2-µmol/kgHoulbrèque, FannyCalculated using SYSTAT
11Carbon dioxideCO2µmol/kgHoulbrèque, FannyCalculated using SYSTAT
12Aragonite saturation stateOmega ArgHoulbrèque, FannyCalculated using SYSTAT
13Zinc-65, inc uptake kinetics65Zn upt kinetiksHoulbrèque, FannyDetermined using a high-resolution spectrometry system consisting of four coaxia
14Gross calcification rate of calcium carbonateGC CaCO3nmol/g/hHoulbrèque, FannyMeasured after Tambutté et al. (1995)
15Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
16Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
17Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
18Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
19Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
20Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
21Carbon, inorganic, dissolvedDICµmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
22Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
23Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3219 data points

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