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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
Further details:
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0 [webpage]. https://cran.r-project.org/package=seacarb
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
1SiteSiteShamberger, K E F
2CoverageCov%Shamberger, K E Flive coral
3Coverage, standard errorCov std e±Shamberger, K E Flive coral
4Species richnessSShamberger, K E Fcoral
5Species richness, standard errorS std e±Shamberger, K E Fcoral
6DiversityH(S)Shamberger, K E Fcoral
7Diversity, standard errorH(S) std e±Shamberger, K E Fcoral
8Aragonite saturation stateOmega ArgShamberger, K E FCalculated using CO2SYS
9Aragonite saturation state, standard errorOmega Arg std e±Shamberger, K E FCalculated using CO2SYS
10Alkalinity, totalATµmol/kgShamberger, K E FPotentiometric titration
11Carbon, inorganic, dissolvedDICµmol/kgShamberger, K E FCoulometric titration
12SalinitySalShamberger, K E F
13Temperature, waterTemp°CShamberger, K E F
14Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
15pH, total scalepHTYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
16Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
17Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
18Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
132 data points

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