Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Comeau, Steeve; Edmunds, Peter J; Lantz, Coulson A; Carpenter, Robert C (2015): Seawater carbonate chemistry and calcification rate in flume experiment. PANGAEA, https://doi.org/10.1594/PANGAEA.847986, Supplement to: Comeau, Steeve; Carpenter, Robert C; Lantz, Coulson A; Edmunds, Peter J (2015): Ocean acidification accelerates dissolution of experimental coral reef communities. Biogeosciences, 12(2), 365-372, https://doi.org/10.5194/bg-12-365-2015

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Ocean acidification (OA) poses a severe threat to tropical coral reefs, yet much of what is know about these effects comes from individual corals and algae incubated in isolation under high pCO2. Studies of similar effects on coral reef communities are scarce. To investigate the response of coral reef communities to OA, we used large outdoor flumes in which communities composed of calcified algae, corals, and sediment were combined to match the percentage cover of benthic communities in the shallow back reef of Moorea, French Polynesia. Reef communities in the flumes were exposed to ambient (400 matm) and high pCO2 (1300 matm) for 8 weeks, and calcification rates measured for the constructed communities including the sediments. Community calcification was reduced by 59% under high pCO2, with sediment dissolution explaining ~ 50% of this decrease; net calcification of corals and calcified algae remained positive but was reduced by 29% under elevated pCO2. These results show that, despite the capacity of coral reef calcifiers to maintain positive net accretion of calcium carbonate under OA conditions, reef communities might transition to net dissolution as pCO2 increases, particularly at night, due to enhanced sediment dissolution.
Keyword(s):
Benthos; Calcification/Dissolution; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Entire community; Laboratory experiment; Rocky-shore community; South Pacific; Tropical
Related to:
Comeau, Steeve; Edmunds, Peter J; Lantz, Coulson A; Carpenter, Robert C (2014): Water flow modulates the response of coral reef communities to ocean acidification. Scientific Reports, 4, 6681, https://doi.org/10.1038/srep06681
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb
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 (Gattuso et al, 2015) 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 is 2015-07-09.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample code/labelSample labelComeau, Steeve
2DateDateComeau, Steeve
3Sample commentSample commentComeau, Steeveday/night
4IdentificationIDComeau, Steeve
5TreatmentTreatComeau, Steeve
6Calcification rateCalc rateg/m2/dayComeau, Steeve
7SalinitySalComeau, Steeve
8Temperature, waterTemp°CComeau, Steeve
9pHpHComeau, SteeveSpectrophotometrictotal scale
10Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmComeau, SteeveCalculated using seacarb
11Bicarbonate ion[HCO3]-µmol/kgComeau, SteeveCalculated using seacarb
12Carbonate ion[CO3]2-µmol/kgComeau, SteeveCalculated using seacarb
13Carbon, inorganic, dissolvedDICµmol/kgComeau, SteeveCalculated using seacarb
14Alkalinity, totalATµmol/kgComeau, SteevePotentiometric titration
15Aragonite saturation stateOmega ArgComeau, SteeveCalculated using seacarb
16Calcite saturation stateOmega CalComeau, SteeveCalculated using seacarb
17Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
18Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, 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)
21Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
2248 data points

Download Data

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

View dataset as HTML (shows only first 2000 rows)