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Shamberger, K E F; Cohen, Anne L; Golbuu, Yimnang; McCorkle, Daniel C; Lentz, S J; Barkley, Hannah C (2014): Diverse coral communities in naturally acidified waters of a Western Pacific reef [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.833900, Supplement to: Shamberger, KEF et al. (2014): Diverse coral communities in naturally acidified waters of a Western Pacific reef. Geophysical Research Letters, 41(2), 499-504, https://doi.org/10.1002/2013GL058489

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Abstract:
Anthropogenic carbon dioxide emissions are acidifying the oceans, reducing the concentration of carbonate ions ([CO32-) that calcifying organisms need to build and cement coral reefs. To date, studies of a handful of naturally acidified reef systems reveal depauperate communities, sometimes with reduced coral cover and calcification rates, consistent with results of laboratory-based studies. Here we report the existence of highly diverse, coral-dominated reef communities under chronically low pH and aragonite saturation state (Omega ar). Biological and hydrographic processes change the chemistry of the seawater moving across the barrier reefs and into Palau's Rock Island bays, where levels of acidification approach those projected for the western tropical Pacific open ocean by 2100. Nevertheless, coral diversity, cover, and calcification rates are maintained across this natural acidification gradient. Identifying the combination of biological and environmental factors that enable these communities to persist could provide important insights into the future of coral reefs under anthropogenic acidification.
Keyword(s):
Benthos; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; North Pacific; Rocky-shore community; Tropical
Other version:
Dataset: Palau carbonate chemistry
Further details:
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Median Latitude: 7.425000 * Median Longitude: 134.475000 * South-bound Latitude: 7.270000 * West-bound Longitude: 134.390000 * North-bound Latitude: 7.580000 * East-bound Longitude: 134.560000
Event(s):
Palauan_reef * Latitude Start: 7.270000 * Longitude Start: 134.390000 * Latitude End: 7.580000 * Longitude End: 134.560000 * Method/Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne et al, 2014) 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 2014-07-08. Funded by a WHOI-OLI Postdoctoral Scholarship to KEF Shamberger, NSF OCE-1041106 to AL Cohen and DC McCorkle, TNC award PNA/WHOI061810 to AL Cohen and the Palau International Coral Reef Center.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 SiteSiteShamberger, K E F
2 CoverageCov%Shamberger, K E Flive coral
3 Coverage, standard errorCov std e±Shamberger, K E Flive coral
4 Species richnessSShamberger, K E Fcoral
5 Species richness, standard errorS std e±Shamberger, K E Fcoral
6 DiversityH(S)Shamberger, K E Fcoral
7 Diversity, standard errorH(S) std e±Shamberger, K E Fcoral
8 Aragonite saturation stateOmega ArgShamberger, K E FCalculated using CO2SYS
9 Aragonite saturation state, standard errorOmega Arg std e±Shamberger, K E FCalculated using CO2SYS
10 Alkalinity, totalATµmol/kgShamberger, K E FPotentiometric titration
11 Carbon, inorganic, dissolvedDICµmol/kgShamberger, K E FCoulometric titration
12 SalinitySalShamberger, K E F
13 Temperature, waterTemp°CShamberger, K E F
14 Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
15 pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
16 Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
17 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
18 Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19 Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20 Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21 Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22 Calcite 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:
132 data points

Data

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

1 
Site		2 
Cov [%]
(live coral)		3 
Cov std e [±]
(live coral)		4 
S
(coral)		5 
S std e [±]
(coral)		6 
H(S)
(coral)		7 
H(S) std e [±]
(coral)		8 
Omega Arg
(Calculated using CO2SYS)		9 
Omega Arg std e [±]
(Calculated using CO2SYS)		10 
AT [µmol/kg]
(Potentiometric titration)		11 
DIC [µmol/kg]
(Coulometric titration)		12 
Sal		13 
Temp [°C]		14 
CSC flag
(Calculated using seacarb afte...)		15 
pH
(total scale, Calculated using...)		16 
CO2 [µmol/kg]
(Calculated using seacarb afte...)		17 
pCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)		18 
fCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)		19 
[HCO3]- [µmol/kg]
(Calculated using seacarb afte...)		20 
[CO3]2- [µmol/kg]
(Calculated using seacarb afte...)		21 
Omega Arg
(Calculated using seacarb afte...)		22 
Omega Cal
(Calculated using seacarb afte...)
Uchelbeluu ocean side (site 1)28.6001.3008.40.51.50.13.730.032177.041852.4733.4329.47158.06936136016162283.735.60
NW barrier ocean side (site 2)31.2004.6009.40.71.60.13.600.032212.601900.0433.8728.93158.041039239116692213.605.40
NW barrier lagoon side (site 5)29.9007.8009.20.21.40.13.340.052111.821820.6833.4529.69158.011040340116072043.355.02
Airai (site 6)37.2004.9008.80.41.10.03.460.152107.011805.6033.0629.63158.031037937815852113.475.20
Risong main bay (site 7)31.8004.50012.00.41.80.02.970.032086.751830.9233.2329.47157.961246546416381812.974.46
Risong Bay jacuzzi (site 8)63.0004.20012.60.51.60.12.660.022062.021835.9033.1629.98157.891454554416601622.674.00