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Towle, Erica K; Enochs, I C; Langdon, Chris (2015): Threatened Caribbean coral is able to mitigate the adverse effects of ocean acidification on calcification by increasing feeding rate [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.853608, Supplement to: Towle, EK et al. (2015): Threatened Caribbean coral is able to mitigate the adverse effects of ocean acidification on calcification by increasing feeding rate. PLoS ONE, 10(4), e0123394, https://doi.org/10.1371/journal.pone.0123394

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Abstract:
Global climate change threatens coral growth and reef ecosystem health via ocean warming and ocean acidification (OA). Whereas the negative impacts of these stressors are increasingly well-documented, studies identifying pathways to resilience are still poorly understood. Heterotrophy has been shown to help corals experiencing decreases in growth due to either thermal or OA stress; however, the mechanism by which it mitigates these decreases remains unclear. This study tested the ability of coral heterotrophy to mitigate reductions in growth due to climate change stress in the critically endangered Caribbean coral Acropora cervicornis via changes in feeding rate and lipid content. Corals were either fed or unfed and exposed to elevated temperature (30°C), enriched pCO2 (800 ppm), or both (30°C/800 ppm) as compared to a control (26°C/390 ppm) for 8 weeks. Feeding rate and lipid content both increased in corals experiencing OA vs. present-day conditions, and were significantly correlated. Fed corals were able to maintain ambient growth rates at both elevated temperature and elevated CO2, while unfed corals experienced significant decreases in growth with respect to fed conspecifics. Our results show for the first time that a threatened coral species can buffer OA-reduced calcification by increasing feeding rates and lipid content.
Keyword(s):
Acropora cervicornis; Animalia; Behaviour; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Laboratory experiment; North Atlantic; Single species; Temperate
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
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
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 2015-09-30.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesTowle, Erica K
2FigureFigTowle, Erica K
3TreatmentTreatTowle, Erica KLT-LCO2=low temperature low CO2, LT-HCO2=low temperature high CO2, HT-HCO2=high temperature high CO2, HT-LCO2=high temperature low CO2
4TreatmentTreatTowle, Erica K
5Calcification rate of calcium carbonateCalc rate CaCO3mg/cm2/dayTowle, Erica K
6Feeding rateFeed rate#/cm2/hTowle, Erica K
7Lipid contentLipidsmg/cm2Towle, Erica K
8Chlorophyll aChl aµg/cm2Towle, Erica K
9Symbiont cell densitySymbiont#/cm2Towle, Erica K
10Temperature, waterTemp°CTowle, Erica K
11Temperature, water, standard deviationTemp std dev±Towle, Erica K
12Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetppmvTowle, Erica KCalculated using CO2SYS
13Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Towle, Erica KCalculated using CO2SYS
14SalinitySalTowle, Erica K
15Salinity, standard deviationSal std dev±Towle, Erica K
16pHpHTowle, Erica KCalculated using CO2SYStotal scale
17pH, standard deviationpH std dev±Towle, Erica KCalculated using CO2SYStotal scale
18Aragonite saturation stateOmega ArgTowle, Erica KCalculated using CO2SYS
19Aragonite saturation state, standard deviationOmega Arg std dev±Towle, Erica KCalculated using CO2SYS
20Alkalinity, totalATµmol/kgTowle, Erica KPotentiometric titration
21Alkalinity, total, standard deviationAT std dev±Towle, Erica KPotentiometric titration
22Carbon, inorganic, dissolvedDICµmol/kgTowle, Erica KCoulometric titration
23Carbon, inorganic, dissolved, standard deviationDIC std dev±Towle, Erica KCoulometric titration
24Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
26Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Calcite 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:
10416 data points

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