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Anlauf, Holger; D'Croz, Luis; O'Dea, Aaron (2011): Seawater carbonate chemistry and biological processes of Porites panamensis during experiments, 2011. PANGAEA, https://doi.org/10.1594/PANGAEA.761769, Supplement to: Anlauf, H et al. (2011): A corrosive concoction: The combined effects of ocean warming and acidification on the early growth of a stony coral are multiplicative. Journal of Experimental Marine Biology and Ecology, 397(1), 13-20, https://doi.org/10.1016/j.jembe.2010.11.009

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Abstract:
Survival of coral planulae, and the successful settlement and healthy growth of primary polyps are critical for the dispersal of scleractinian corals and hence the recovery of degraded coral reefs. It is therefore important to explore how the warmer and more acidic oceanic conditions predicted for the future could affect these processes. This study used controlled culture to investigate the effects of a 1 °C increase in temperature and a 0.2-0.25 unit decrease in pH on the settlement and survival of planulae and the growth of primary polyps in the Tropical Eastern Pacific coral Porites panamensis. We found that primary polyp growth was reduced only marginally by more acidic seawater but the combined effect of high temperature and lowered pH caused a significant reduction in growth of primary polyps by almost a third. Elevated temperature was found to significantly reduce the amount of zooxanthellae in primary polyps, and when combined with lowered pH resulted in a significant reduction in biomass of primary polyps. However, survival and settlement of planula larvae were unaffected by increased temperature, lowered acidity or the combination of both. These results indicate that in future scenarios of increased temperature and oceanic acidity coral planulae will be able to disperse and settle successfully but primary polyp growth may be hampered. The recovery of reefs may therefore be impeded by global change even if local stressors are curbed and sufficient sources of planulae are available.
Comment:
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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1IdentificationIDAnlauf, Holger
2Experimental treatmentExp treatAnlauf, Holger
3SalinitySalAnlauf, Holger
4Temperature, waterTemp°CAnlauf, HolgerMean
5Temperature, waterTemp°CAnlauf, HolgerMaximum
6Temperature, waterTemp°CAnlauf, HolgerMinimum
7pHpHAnlauf, HolgerNBS scale, mean
8pHpHAnlauf, HolgerNBS scale, maximum
9pHpHAnlauf, HolgerNBS scale, minimum
10Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmAnlauf, Holger
11Aragonite saturation stateOmega ArgAnlauf, HolgerCalculated using CO2SYS
12Alkalinity, totalATµmol/kgAnlauf, HolgerTitration
13Zooxanthellae per polypZoox/polyp#Anlauf, Holger
14Porites panamensis, settledP. panamensis sett%Anlauf, Holger
15Porites panamensis, motileP. panamensis motile%Anlauf, Holger
16Porites panamensis, deadP. panamensis d%Anlauf, Holger
17Porites panamensis, mortality, post settlementP. panamensis psm%Anlauf, Holger
18Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
19pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
20Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
21Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
22Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
23Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
24Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
25Carbon, inorganic, dissolvedDICµmol/kgAnlauf, HolgerCalculated using CO2SYS
26Alkalinity, totalATµmol/kgAnlauf, HolgerCalculated using CO2SYS
27Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
28Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
Size:
1881 data points

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