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Leclercq, Nicolas; Gattuso, Jean-Pierre; Jaubert, Jean (2002): Seawater carbonate chemistry and calcification during experiments with coral communities, 2002 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.756652, Supplement to: Leclercq, N et al. (2002): Primary production, respiration, and calcification of a coral reef mesocosm under increased CO2 partial pressure. Limnology and Oceanography, 47(2), 558-564, https://doi.org/10.4319/lo.2002.47.2.0558

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Abstract:
The effect of increased CO2 partial pressure (pCO2) on the community metabolism (primary production, respiration, and calcification) of a coral community was investigated over periods ranging from 9 to 30 d. The community was set up in an open-top mesocosm within which pCO2 was manipulated (411, 647, and 918 µatm). The effect of increased pCO2 on the rate of calcification of the sand area of the mesocosm was also investigated. The net community primary production (NCP) did not change significantly with respect to pCO2 and was 5.1 ± 0.9 mmol O2 m-2 h-1, Dark respiration (R) increased slightly during the experiment at high pCO2, but this did not affect significantly the NCP:R ratio (1.0 ± 0.2). The rate of calcification exhibited the trend previously reported; it decreased as a function of increasing pCO2 and decreasing aragonite saturation state. This re-emphasizes the predictions that reef calcification is likely to decrease during the next century. The dissolution process of calcareous sand does not seem to be affected by open seawater carbonate chemistry; rather, it seems to be controlled by the biogeochemistry of sediment pore water.
Keyword(s):
Benthos; Calcification/Dissolution; Entire community; Laboratory experiment; Not applicable; Respiration; Rocky-shore community
Project(s):
European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)
European Project on Ocean Acidification (EPOCA)
Ocean Acidification International Coordination Centre (OA-ICC)
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
Comment:
Caution! Values are not truly measured! 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).
Calcification rate data were digitized from scanned figure 3 using software GraphClick (http://www.arizona-software.ch).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 SiteSiteGattuso, Jean-Pierre
2 Experimental treatmentExp treatGattuso, Jean-Pierre
3 SalinitySalGattuso, Jean-Pierre
4 Temperature, waterTemp°CGattuso, Jean-PierreMeasured
5 pHpHGattuso, Jean-PierrepH meter (Orion)Seawater scale
6 Alkalinity, totalATµmol/kgGattuso, Jean-PierreMeasured
7 Carbon dioxideCO2µmol/kgGattuso, Jean-PierreCalculated
8 Bicarbonate ion[HCO3]-µmol/kgGattuso, Jean-PierreCalculated
9 Carbonate ion[CO3]2-µmol/kgGattuso, Jean-PierreCalculated
10 Carbon, inorganic, dissolvedDICµmol/kgGattuso, Jean-PierreCalculated
11 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmGattuso, Jean-PierreCalculated
12 Aragonite saturation stateOmega ArgGattuso, Jean-PierreCalculated
13 Calcification rate of calcium carbonateCalc rate CaCO3mmol/m2/hGattuso, Jean-PierreAlkalinity anomaly technique (Smith and Key, 1975)
14 Calcification rate of calcium carbonateCalc rate CaCO3mmol/m2/hGattuso, Jean-PierreAlkalinity anomaly technique (Smith and Key, 1975)Community
15 Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
16 pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
17 Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
18 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
19 Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
20 Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
21 Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
22 Carbon, inorganic, dissolvedDICµmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
23 Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
24 Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated 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:
288 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Site		2 
Exp treat		3 
Sal		4 
Temp [°C]
(Measured)		5 
pH
(Seawater scale, pH meter (Orion))		6 
AT [µmol/kg]
(Measured)		7 
CO2 [µmol/kg]
(Calculated)		8 
[HCO3]- [µmol/kg]
(Calculated)		9 
[CO3]2- [µmol/kg]
(Calculated)		10 
DIC [µmol/kg]
(Calculated)		11 
pCO2water_SST_wet [µatm]
(Calculated)		12 
Omega Arg
(Calculated)		13 
Calc rate CaCO3 [mmol/m2/h]
(Alkalinity anomaly technique ...)		14 
Calc rate CaCO3 [mmol/m2/h]
(Community, Alkalinity anomaly...)		15 
CSC flag
(Calculated using seacarb afte...)		16 
pH
(Calculated using seacarb afte...)		17 
CO2 [µmol/kg]
(Total scale, Calculated using...)		18 
pCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)		19 
fCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)		20 
[HCO3]- [µmol/kg]
(Calculated using seacarb afte...)		21 
[CO3]2- [µmol/kg]
(Calculated using seacarb afte...)		22 
DIC [µmol/kg]
(Calculated using seacarb afte...)		23 
Omega Arg
(Calculated using seacarb afte...)		24 
Omega Cal
(Calculated using seacarb afte...)
Coral communityLow pCO2 - Light38258.09260011188230321964114.5?11.51?12.3388.0910.26371.87370.711908.83284.492203.64.426.68
Coral communityMid pCO2 - Light38257.92260018207822023166473.2?10.57?11.7187.9216.83602.62600.722096.90207.422321.23.224.86
Coral communityHigh pCO2 - Light38267.81260025216218523739182.7?10.30?11.1587.8122.27811.34808.802183.30172.042377.62.684.04
Sand communityLow pCO2 - Light38268.09260011188130221943934.5?0.82?12.3388.0910.08370.87369.721897.65289.162196.94.516.79
Sand communityMid pCO2 - Light38268.00260014199525522655403.8?0.53?11.1088.0013.21481.29479.792005.95244.812264.03.815.75
Sand communityHigh pCO2 - Light38267.92260018206722523096413.3?0.34?10.6487.9216.39601.53599.662081.99213.702312.13.335.02
Coral communityLow pCO2 - Dark38258.09260011188230321964114.5?4.31?4.1088.0910.26371.87370.711908.83284.492203.64.426.68
Coral communityMid pCO2 - Dark38257.92260018207822023166473.2?4.39?4.2987.9216.83602.62600.722096.90207.422321.23.224.86
Coral communityHigh pCO2 - Dark38267.81260025216218523739182.7?4.19?3.9087.8122.27811.34808.802183.30172.042377.62.684.04
Sand communityLow pCO2 - Dark38268.09260011188130221943934.5?-0.81?3.5088.0910.08370.87369.721897.65289.162196.94.516.79
Sand communityMid pCO2 - Dark38268.00260014199525522655403.8?-0.81?3.5888.0013.21481.29479.792005.95244.812264.03.815.75
Sand communityHigh pCO2 - Dark38267.92260018206722523096413.3?-0.81?3.3887.9216.39601.53599.662081.99213.702312.13.335.02