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Wall, Marlene; Fietzke, Jan; Crook, Elizabeth Derse; Paytan, Adina (2019): Seawater carbonate chemistry and calcification conditions and calcification rates of Porites astreoides corals. PANGAEA, https://doi.org/10.1594/PANGAEA.914250

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Abstract:
Ocean acidification is expected to negatively impact calcifying organisms, yet we lack understanding of their acclimation potential in the natural environment. Here we measured geochemical proxies (delta 11B and B/Ca) in Porites astreoides corals that have been growing for their entire life under low aragonite saturation (Omega sw: 0.77–1.85). This allowed us to assess the ability of these corals to manipulate the chemical conditions at the site of calcification (Omega cf), and hence their potential to acclimate to changing Omegasw. We show that lifelong exposure to low Omega sw did not enable the corals to acclimate and reach similar Omega cf as corals grown under ambient conditions. The lower Omega cf at the site of calcification can explain a large proportion of the decreasing P. astreoides calcification rates at low Omega sw. The naturally elevated seawater dissolved inorganic carbon concentration at this study site shed light on how different carbonate chemistry parameters affect calcification conditions in corals.
Keyword(s):
Acid-base regulation; Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Field observation; Growth/Morphology; North Atlantic; Porites astreoides; Single species; Tropical
Supplement to:
Wall, Marlene; Fietzke, Jan; Crook, Elizabeth Derse; Paytan, Adina (2019): Using B isotopes and B/Ca in corals from low saturation springs to constrain calcification mechanisms. Nature Communications, 10(1), https://doi.org/10.1038/s41467-019-11519-9
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2019): seacarb: seawater carbonate chemistry with R. R package version 3.2.12. https://CRAN.R-project.org/package=seacarb
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 by seacarb is 2020-03-18.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeWall, Marlenestudy
2SpeciesSpeciesWall, Marlene
3Registration number of speciesReg spec noWall, Marlene
4Uniform resource locator/link to referenceURL refWall, MarleneWoRMS Aphia ID
5SiteSiteWall, Marlene
6Aragonite saturation stateOmega ArgWall, MarleneSeawater
7pHpHWall, MarleneSeawater, total scale
8SalinitySalWall, Marlene
9Temperature, waterTemp°CWall, Marlene
10IdentificationIDWall, MarleneCoral
11δ11Bδ11B‰ SRMWall, MarleneSeawater
12δ11Bδ11B‰ SRMWall, MarleneSkeletal
13Logarithmic base dissociation constantpk (b)Wall, MarleneSeawater
14Calcifying fluid, pHCF pHWall, Marlene
15Boron/Calcium ratioB/Caµmol/molWall, MarleneSkeletal
16Calcifying fluid, carbonate ionCF [CO3]2-µmol/kgWall, Marlene
17Calcifying fluid, dissolved inorganic carbonCF DICµmol/kgWall, Marlene
18Carbon, inorganic, dissolvedDICµmol/kgWall, MarleneSeawater
19Calcifying fluid, aragonite saturation stateCF Omega ArgWall, Marlene
20GrowthGrowth%Wall, MarleneRelative growth rates based on ¦¸cf
21RatioRatioWall, MarleneDICcf/DICsw
22Calcifying fluid, aragonite saturation stateCF Omega ArgWall, Marlenebased on d11B and 2*DICsw
23GrowthGrowth%Wall, MarleneRelative growth rates based on d11B and 2*DICsw
24Calcifying fluid, aragonite saturation stateCF Omega ArgWall, Marlenebased on d11B and 1*DICsw
25GrowthGrowth%Wall, MarleneRelative growth rates based on d11B and 1*DICsw
26Alkalinity, totalATµmol/kgWall, Marlene
27Bicarbonate ion[HCO3]-µmol/kgWall, Marlene
28Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
30Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
8172 data points

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