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Suwa, Ryota; Nakamura, Masoko; Morita, Masaya; Shimada, Kazuaki; Iguchi, Akira; Sakai, Kazuhiko; Suzuki, Atsushi (2010): Seawater carbonate chemistry and coral (Acropora digitifera and Acropora tenuis) algal infection rate, survival and surface area of plyps during experiments, 2009 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.758198, Supplement to: Suwa, R et al. (2009): Effects of acidified seawater on early life stages of scleractinian corals (Genus Acropora). Fisheries Science, 76(1), 93-99, https://doi.org/10.1007/s12562-009-0189-7

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Abstract:
Ocean acidification, caused by increased atmospheric carbon dioxide (CO2) concentrations, is currently an important environmental problem. It is therefore necessary to investigate the effects of ocean acidification on all life stages of a wide range of marine organisms. However, few studies have examined the effects of increased CO2 on early life stages of organisms, including corals. Using a range of pH values (pH 7.3, 7.6, and 8.0) in manipulative duplicate aquarium experiments, we have evaluated the effects of increased CO2 on early life stages (larval and polyp stages) of Acropora spp. with the aim of estimating CO2 tolerance thresholds at these stages. Larval survival rates did not differ significantly between the reduced pH and control conditions. In contrast, polyp growth and algal infection rates were significantly decreased at reduced pH levels compared to control conditions. These results suggest that future ocean acidification may lead to reduced primary polyp growth and delayed establishment of symbiosis. Stress exposure experiments using longer experimental time scales and lower levels of CO2 concentrations than those used in this study are needed to establish the threshold of CO2 emissions required to sustain coral reef ecosystems.
Keyword(s):
Acropora digitifera; Acropora tenuis; Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria (<20 L); Cnidaria; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Mortality/Survival; North Pacific; Other studied parameter or process; Single species; Temperate
Project(s):
European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)
European Project on Ocean Acidification (EPOCA)
Ocean Acidification International Coordination Centre (OA-ICC)
Funding:
Seventh Framework Programme (FP7), grant/award no. 211384: European Project on Ocean Acidification
Sixth Framework Programme (FP6), grant/award no. 511106: European network of excellence for Ocean Ecosystems Analysis
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 InvestigatorMethod/DeviceComment
1SpeciesSpeciesNakamura, Masoko
2Experiment dayExp daydayNakamura, Masoko
3Experimental treatmentExp treatNakamura, Masoko
4IdentificationIDNakamura, Masoko
5SalinitySalNakamura, MasokoMeasured
6Temperature, waterTemp°CNakamura, MasokoMeasured
7pHpHNakamura, MasokoMetrohm Titrando titratorTotal scale
8Alkalinity, totalATµmol/kgNakamura, MasokoMeasured
9Bicarbonate ion[HCO3]-µmol/kgNakamura, MasokoCalculated using CO2SYS
10Carbonate ion[CO3]2-µmol/kgNakamura, MasokoCalculated using CO2SYS
11Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNakamura, MasokoCalculated using CO2SYS
12Aragonite saturation stateOmega ArgNakamura, MasokoCalculated using CO2SYS
13Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
14Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
15Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
16Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
17Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
18Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
19Carbon, inorganic, dissolvedDICµmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
20Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
21Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
22Acropora digitifera, algal infection rateA. digitifera infection%Nakamura, Masoko
23SurvivalSurvival%Nakamura, Masoko
24Acropora digitifera, surface area of polypsA. digitifera SA polyps%Nakamura, Masoko
25Acropora digitifera, surface area of polyps, standard deviationA. digitifera SA polyps std dev±Nakamura, Masoko
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3510 data points

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