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Barkley, Hannah C; Cohen, Anne L; Golbuu, Yimnang; Starczak, V R; DeCarlo, Thomas M; Shamberger, K E F (2015): Changes in coral reef communities across a natural gradient in seawater pH [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.849300, Supplement to: Barkley, HC et al. (2015): Changes in coral reef communities across a natural gradient in seawater pH. Science Advances, 1(5), e1500328-e1500328, https://doi.org/10.1126/sciadv.1500328

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Abstract:
Ocean acidification threatens the survival of coral reef ecosystems worldwide. The negative effects of ocean acidification observed in many laboratory experiments have been seen in studies of naturally low-pH reefs, with little evidence to date for adaptation. Recently, we reported initial data suggesting that low-pH coral communities of the Palau Rock Islands appear healthy despite the extreme conditions in which they live. Here, we build on that observation with a comprehensive statistical analysis of benthic communities across Palau's natural acidification gradient. Our analysis revealed a shift in coral community composition but no impact of acidification on coral richness, coralline algae abundance, macroalgae cover, coral calcification, or skeletal density. However, coral bioerosion increased 11-fold as pH decreased from the barrier reefs to the Rock Island bays. Indeed, a comparison of the naturally low-pH coral reef systems studied so far revealed increased bioerosion to be the only consistent feature among them, as responses varied across other indices of ecosystem health. Our results imply that whereas community responses may vary, escalation of coral reef bioerosion and acceleration of a shift from net accreting to net eroding reef structures will likely be a global signature of ocean acidification.
Keyword(s):
Benthos; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; Rocky-shore community; South Pacific; Tropical
Related to:
Cohen, Anne L; Karnauskas, Kristopher (2015): Dataset: coral skeletal growth [dataset]. Biological and Chemical Oceanography Data Management Office, https://www.bco-dmo.org/dataset/561046
Cohen, Anne L; Karnauskas, Kristopher; McCorkle, Daniel C; Tarrant, Ann M; de Putron, Samantha J (2015): Dataset: coral diversity and richness [dataset]. Biological and Chemical Oceanography Data Management Office, https://www.bco-dmo.org/dataset/520476
Cohen, Anne L; Karnauskas, Kristopher; McCorkle, Daniel C; Tarrant, Ann M; de Putron, Samantha J (2015): Dataset: Palau carbonate chemistry [dataset]. Biological and Chemical Oceanography Data Management Office, https://www.bco-dmo.org/dataset/489014
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb
Coverage:
Median Latitude: 7.338125 * Median Longitude: 134.462750 * South-bound Latitude: 7.160000 * West-bound Longitude: 134.352000 * North-bound Latitude: 7.544000 * East-bound Longitude: 134.557000
Date/Time Start: 2011-09-19T00:00:00 * Date/Time End: 2013-11-15T00:00:00
Event(s):
Palau * Latitude: 7.338000 * Longitude: 134.463000 * Date/Time Start: 2011-09-19T00:00:00 * Date/Time End: 2013-11-15T00:00:00 * 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 2015-09-09.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
SiteSiteBarkley, Hannah C
LATITUDELatitudeBarkley, Hannah CGeocode
LONGITUDELongitudeBarkley, Hannah CGeocode
Aragonite saturation stateOmega ArgBarkley, Hannah C
Aragonite saturation state, standard errorOmega Arg std e±Barkley, Hannah C
Corals, coverCorals cov%Barkley, Hannah C
Corals, cover, standard errorCorals cov std e±Barkley, Hannah C
Species richnessSBarkley, Hannah Ccoral genera
Species richness, standard errorS std e±Barkley, Hannah Ccoral genera
10 DiversityH(S)Barkley, Hannah Ccoral genera
11 Diversity, standard errorH(S) std e±Barkley, Hannah Ccoral genera
12 Evenness of speciesEBarkley, Hannah Ccoral genera
13 Evenness of species, standard errorE std e±Barkley, Hannah Ccoral genera
14 CoverageCov%Barkley, Hannah CPorites coral
15 Coverage, standard errorCov std e±Barkley, Hannah CPorites coral
16 CoverageCov%Barkley, Hannah Cacropora coral
17 Coverage, standard errorCov std e±Barkley, Hannah Cacropora coral
18 CoverageCov%Barkley, Hannah Cmacroalgae
19 Coverage, standard errorCov std e±Barkley, Hannah Cmacroalgae
20 CoverageCov%Barkley, Hannah CCrustose coralline algae (CCA)
21 Coverage, standard errorCov std e±Barkley, Hannah CCrustose coralline algae (CCA)
22 Extension rateExtensionmm/aBarkley, Hannah CPorites
23 Extension rate, standard errorExtension std e±Barkley, Hannah CPorites
24 DensityDensityg/cm3Barkley, Hannah CPorites
25 Density, standard errorDensity std e±Barkley, Hannah CPorites
26 Calcification rate of calcium carbonateCalc rate CaCO3g/cm2/aBarkley, Hannah CPorites
27 Calcification rate, standard errorCalc rate std e±Barkley, Hannah CPorites
28 Extension rateExtensionmm/aBarkley, Hannah CFavia
29 Extension rate, standard errorExtension std e±Barkley, Hannah CFavia
30 DensityDensityg/cm3Barkley, Hannah CFavia
31 Density, standard errorDensity std e±Barkley, Hannah CFavia
32 Calcification rate of calcium carbonateCalc rate CaCO3g/cm2/aBarkley, Hannah CFavia
33 Calcification rate, standard errorCalc rate std e±Barkley, Hannah CFavia
34 PercentagePerc%Barkley, Hannah Caverage Porites percent volume bioeroded.
35 Percentage, standard errorPerc std e±Barkley, Hannah Caverage Porites percent volume bioeroded.
36 Temperature, waterTemp°CBarkley, Hannah C
37 Temperature, water, standard errorT std e±Barkley, Hannah C
38 SalinitySalBarkley, Hannah C
39 Salinity, standard errorSal std e±Barkley, Hannah C
40 Nitrate and Nitrite[NO3]- + [NO2]-µmol/lBarkley, Hannah C
41 Nitrate and Nitrite, standard error[NO3]- + [NO2]- std e±Barkley, Hannah C
42 Ammonium[NH4]+µmol/lBarkley, Hannah C
43 Ammonium, standard error[NH4]+ std e±Barkley, Hannah C
44 Phosphate[PO4]3-µmol/lBarkley, Hannah C
45 Phosphate, standard errorPO4 std e±Barkley, Hannah C
46 Alkalinity, totalATµmol/kgBarkley, Hannah CPotentiometric titration
47 Alkalinity, total, standard errorAT std e±Barkley, Hannah CPotentiometric titration
48 Carbon, inorganic, dissolvedDICµmol/kgBarkley, Hannah CCoulometric titration
49 Carbon, inorganic, dissolved, standard errorDIC std e±Barkley, Hannah CCoulometric titration
50 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmBarkley, Hannah CCalculated using CO2SYS
51 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard errorpCO2water_SST_wet std e±Barkley, Hannah CCalculated using CO2SYS
52 Carbonate ion[CO3]2-µmol/kgBarkley, Hannah CCalculated using CO2SYS
53 Carbonate ion, standard error[CO3]2- std e±Barkley, Hannah CCalculated using CO2SYS
54 pHpHBarkley, Hannah CCalculated using CO2SYStotal scale
55 pH, standard errorpH std e±Barkley, Hannah CCalculated using CO2SYStotal scale
56 Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
57 pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
58 Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
59 Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
60 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
61 Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
62 Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
63 Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
64 Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
728 data points

Data

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


Site

Latitude

Longitude

Omega Arg

Omega Arg std e [±]

Corals cov [%]

Corals cov std e [±]

S
(coral genera)

S std e [±]
(coral genera)
10 
H(S)
(coral genera)
11 
H(S) std e [±]
(coral genera)
12 
E
(coral genera)
13 
E std e [±]
(coral genera)
14 
Cov [%]
(Porites coral)
15 
Cov std e [±]
(Porites coral)
16 
Cov [%]
(acropora coral)
17 
Cov std e [±]
(acropora coral)
18 
Cov [%]
(macroalgae)
19 
Cov std e [±]
(macroalgae)
20 
Cov [%]
(Crustose coralline algae (CCA))
21 
Cov std e [±]
(Crustose coralline algae (CCA))
22 
Extension [mm/a]
(Porites)
23 
Extension std e [±]
(Porites)
24 
Density [g/cm3]
(Porites)
25 
Density std e [±]
(Porites)
26 
Calc rate CaCO3 [g/cm2/a]
(Porites)
27 
Calc rate std e [±]
(Porites)
28 
Extension [mm/a]
(Favia)
29 
Extension std e [±]
(Favia)
30 
Density [g/cm3]
(Favia)
31 
Density std e [±]
(Favia)
32 
Calc rate CaCO3 [g/cm2/a]
(Favia)
33 
Calc rate std e [±]
(Favia)
34 
Perc [%]
(average Porites percent volum...)
35 
Perc std e [±]
(average Porites percent volum...)
36 
Temp [°C]
37 
T std e [±]
38 
Sal
39 
Sal std e [±]
40 
[NO3]- + [NO2]- [µmol/l]
41 
[NO3]- + [NO2]- std e [±]
42 
[NH4]+ [µmol/l]
43 
[NH4]+ std e [±]
44 
[PO4]3- [µmol/l]
45 
PO4 std e [±]
46 
AT [µmol/kg]
(Potentiometric titration)
47 
AT std e [±]
(Potentiometric titration)
48 
DIC [µmol/kg]
(Coulometric titration)
49 
DIC std e [±]
(Coulometric titration)
50 
pCO2water_SST_wet [µatm]
(Calculated using CO2SYS)
51 
pCO2water_SST_wet std e [±]
(Calculated using CO2SYS)
52 
[CO3]2- [µmol/kg]
(Calculated using CO2SYS)
53 
[CO3]2- std e [±]
(Calculated using CO2SYS)
54 
pH
(total scale, Calculated using...)
55 
pH std e [±]
(total scale, Calculated using...)
56 
CSC flag
(Calculated using seacarb afte...)
57 
pH
(total scale, Calculated using...)
58 
CO2 [µmol/kg]
(Calculated using seacarb afte...)
59 
fCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)
60 
pCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)
61 
[HCO3]- [µmol/kg]
(Calculated using seacarb afte...)
62 
[CO3]2- [µmol/kg]
(Calculated using seacarb afte...)
63 
Omega Arg
(Calculated using seacarb afte...)
64 
Omega Cal
(Calculated using seacarb afte...)
Nikko7.324134.4932.320.0363.004.1912.60.501.600.090.410.0534.006.320.200.120.000.000.900.6030.30.132.40.100.370.080.460.070.050.001976.704.31782.74.1604.20.22139.81.77.840.00157.8415.30603.17604.981627.44140.002.333.49
Risong7.307134.4772.670.0231.844.5012.00.421.790.040.520.0514.104.080.000.000.000.002.160.9930.00.133.20.000.210.050.100.020.050.002063.801.31836.81.7542.64.40162.21.07.900.00157.8913.99550.31551.971672.44162.252.684.01
Taoch7.277134.4273.240.0663.104.785.00.580.300.050.410.1559.605.410.500.220.000.000.100.1029.50.233.70.050.320.130.370.150.090.022163.1010.91883.69.4447.010.30197.83.57.980.01157.9811.49447.83449.191674.25197.833.244.86
Ngaremlengui_Patch7.541134.4703.430.0829.957.789.20.221.450.070.500.0914.108.1114.603.510.210.130.000.0029.70.033.20.100.080.050.290.150.040.022132.608.11835.315.7395.519.20208.54.98.020.02158.0110.26401.53402.741606.68203.753.355.02
Airai7.329134.5573.460.1537.224.838.80.361.070.050.350.053.301.2826.615.412.700.752.500.8129.60.333.10.300.410.130.090.030.050.002107.0123.91845.624.2378.319.60210.38.98.020.02158.039.70377.63378.771585.41210.493.475.20
Uchelbeluu7.271134.5493.660.0828.601.328.40.501.460.070.540.031.300.7310.002.090.300.201.700.8029.70.133.50.100.320.080.290.070.040.012159.607.71841.09.1373.613.40223.04.78.050.01158.059.54373.34374.471608.48222.953.665.49
Ngerdiluches7.438134.3573.680.0521.134.927.00.511.480.040.690.091.740.688.623.511.030.461.030.5829.10.133.90.000.130.040.120.050.050.002178.0015.71882.818.7372.88.30225.53.48.050.01158.059.51368.86369.981626.32226.043.695.54
Ngaremlengui_Barrier7.544134.4443.690.0631.254.579.40.671.610.080.560.051.200.3723.901.950.100.102.140.7929.60.133.40.000.030.000.300.090.030.002132.608.11835.315.6369.68.40224.63.68.050.01158.059.45368.89370.011623.67224.813.695.54
Nikko_Bay7.324134.4922.320.039.10.60.970.040.870.066.70.30.950.040.660.032.000.6030.30.132.40.100.370.080.460.070.050.001976.704.31782.74.1604.20.22139.81.77.840.00157.8415.30603.17604.981627.44140.002.333.49
Risong7.304134.4772.670.027.80.41.060.040.820.056.30.30.950.040.630.041.180.4130.00.133.20.000.210.050.100.020.050.002063.801.31836.81.7542.64.40162.21.07.900.00157.8913.99550.31551.971672.44162.252.684.01
Mecherchar7.160134.3522.880.077.50.51.350.041.010.055.550.9531.30.233.20.100.270.070.710.120.070.012082.907.81839.16.3534.517.40173.54.27.900.01157.9113.18533.92535.511652.11173.792.894.31
PICRC7.338134.4543.130.089.50.70.980.060.910.080.550.2330.50.233.50.100.510.030.520.070.090.002131.606.61863.32.9477.616.10189.94.87.950.01157.9511.96476.73478.161661.17190.203.144.69
Taoch7.276134.4273.240.068.00.61.070.040.850.061.150.4329.50.233.70.050.320.130.370.150.090.022163.1010.91883.69.4447.010.30197.83.57.980.01157.9811.49447.83449.191674.25197.833.244.86
Drop_Off7.268134.5223.650.067.40.61.320.030.980.096.10.51.090.070.680.040.000.0029.90.333.60.100.110.550.410.120.030.002178.809.91862.711.9384.48.60221.93.28.040.00158.049.76383.69384.851630.77222.183.655.47
Uchelbeluu7.271134.5493.660.089.70.51.270.031.230.056.50.31.000.070.670.040.190.1229.70.133.50.100.320.080.290.070.040.012159.607.71841.09.1373.613.40223.04.78.050.01158.059.54373.34374.471608.48222.953.665.49
Ngerdiluches7.438134.3573.680.058.10.71.300.051.070.110.090.0829.10.133.90.000.130.040.120.050.050.002178.0015.71882.818.7372.88.30225.53.48.050.01158.059.51368.86369.981626.32226.043.695.54