Citation:

PANGAEA.914250

Name: Seawater carbonate chemistry and calcification conditions and calcification rates of Porites astreoides corals
Published: 2019
License: https://creativecommons.org/licenses/by/4.0/
Keywords: 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

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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

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, 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):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Wall, Marlene		study
2	Species	Species		Wall, Marlene
3	Registration number of species	Reg spec no		Wall, Marlene
4	Uniform resource locator/link to reference	URL ref		Wall, Marlene		WoRMS Aphia ID
5	Site	Site		Wall, Marlene
6	Aragonite saturation state	Omega Arg		Wall, Marlene		Seawater
7	pH	pH		Wall, Marlene		Seawater, total scale
8	Salinity	Sal		Wall, Marlene
9	Temperature, water	Temp	°C	Wall, Marlene
10	Identification	ID		Wall, Marlene		Coral
11	δ11B	δ11B	‰ SRM	Wall, Marlene		Seawater
12	δ11B	δ11B	‰ SRM	Wall, Marlene		Skeletal
13	Logarithmic base dissociation constant	pk (b)		Wall, Marlene		Seawater
14	Calcifying fluid, pH	CF pH		Wall, Marlene
15	Boron/Calcium ratio	B/Ca	µmol/mol	Wall, Marlene		Skeletal
16	Calcifying fluid, carbonate ion	CF [CO3]2-	µmol/kg	Wall, Marlene
17	Calcifying fluid, dissolved inorganic carbon	CF DIC	µmol/kg	Wall, Marlene
18	Carbon, inorganic, dissolved	DIC	µmol/kg	Wall, Marlene		Seawater
19	Calcifying fluid, aragonite saturation state	CF Omega Arg		Wall, Marlene
20	Growth	Growth	%	Wall, Marlene		Relative growth rates based on ¦¸cf
21	Ratio	Ratio		Wall, Marlene		DICcf/DICsw
22	Calcifying fluid, aragonite saturation state	CF Omega Arg		Wall, Marlene		based on d11B and 2*DICsw
23	Growth	Growth	%	Wall, Marlene		Relative growth rates based on d11B and 2*DICsw
24	Calcifying fluid, aragonite saturation state	CF Omega Arg		Wall, Marlene		based on d11B and 1*DICsw
25	Growth	Growth	%	Wall, Marlene		Relative growth rates based on d11B and 1*DICsw
26	Alkalinity, total	AT	µmol/kg	Wall, Marlene
27	Bicarbonate ion	[HCO3]-	µmol/kg	Wall, Marlene
28	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
29	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	total scale
30	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
31	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

8172 data points

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