Citation:

PANGAEA.926042

Name: Seawater carbonate chemistry and coral calcification
Published: 2020-12-23
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Acropora hyacinthus; Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Single species; South Pacific; Temperature; Tropical

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Abstract:

Experiments with coral fragments (i.e. nubbins) have shown that net calcification is depressed by elevated PCO2. Evaluating the implications of this finding requires scaling of results from nubbins to colonies, yet the experiments to codify this process have not been carried out. Building from our previous research demonstrating that net calcification of Pocillopora verrucosa (2–13 cm diameter) was unaffected by PCO2 (400 and 1000 µatm) and temperature (26.5 and 29.7°C), we sought generality to this outcome by testing how colony size modulates PCO2 and temperature sensitivity in a branching acroporid. Together, these taxa represent two of the dominant lineages of branching corals on Indo-Pacific coral reefs. Two trials conducted over 2 years tested the hypothesis that the seasonal range in seawater temperature (26.5 and 29.2°C) and a future PCO2 (1062 µatm versus an ambient level of 461 µatm) affect net calcification of an ecologically relevant size range (5–20 cm diameter) of colonies of Acropora hyacinthus. As for P. verrucosa, the effects of temperature and PCO2 on net calcification (mg day−1) of A. verrucosa were not statistically detectable. These results support the generality of a null outcome on net calcification of exposing intact colonies of branching corals to environmental conditions contrasting seasonal variation in temperature and predicted future variation in PCO2. While there is a need to expand beyond an experimental culture relying on coral nubbins as tractable replicates, rigorously responding to this need poses substantial ethical and logistical challenges.

Keyword(s):

Acropora hyacinthus; Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Single species; South Pacific; Temperature; Tropical

Supplement to:

Edmunds, Peter J; Burgess, Scott C (2020): Emergent properties of branching morphologies modulate the sensitivity of coral calcification to high pCO2. Journal of Experimental Biology, 223(8), jeb217000, https://doi.org/10.1242/jeb.217000

Original version:

Edmunds, Peter J; Burgess, Scott C (2020): MCR LTER: Coral Reef: Data for manuscript J.Exp.Bio 2020 Edmunds and Burgess. Environmental Data Initiative, https://doi.org/10.6073/pasta/c4490637abcbbd54899e28c7d4f74ae7

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2020): seacarb: seawater carbonate chemistry with R. R package version 3.2.14. https://CRAN.R-project.org/package=seacarb

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Coverage:

Latitude: -17.533000 * Longitude: 149.833000

Event(s):

Moorea_north_shore * Latitude: -17.533000 * Longitude: 149.833000 * Method/Device: Experiment (EXP)

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2020) 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 2020-12-11.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Edmunds, Peter J		study
2	Species	Species		Edmunds, Peter J
3	Registration number of species	Reg spec no		Edmunds, Peter J
4	Uniform resource locator/link to reference	URL ref		Edmunds, Peter J		WoRMS Aphia ID
5	Experiment duration	Exp duration	days	Edmunds, Peter J
6	Experiment	Exp		Edmunds, Peter J		year of trail
7	Size	Size		Edmunds, Peter J
8	Identification	ID		Edmunds, Peter J		tank number in mesocosm assembly
9	Identification	ID		Edmunds, Peter J		Coral
10	Treatment	Treat		Edmunds, Peter J
11	Diameter	Diameter	cm	Edmunds, Peter J
12	Area	Area	cm²	Edmunds, Peter J		actual area of coral by wax dipping
13	Calcification rate	Calc rate	mg/day	Edmunds, Peter J		mass increment over study duration
14	pH	pH		Edmunds, Peter J	Potentiometric	total scale
15	pH, standard error	pH std e	±	Edmunds, Peter J	Potentiometric	total scale
16	Replicates	Repl	#	Edmunds, Peter J
17	Alkalinity, total	AT	µmol/kg	Edmunds, Peter J	Potentiometric titration
18	Alkalinity, total, standard error	AT std e	±	Edmunds, Peter J	Potentiometric titration
19	Replicates	Repl	#	Edmunds, Peter J
20	Carbon, inorganic, dissolved	DIC	µmol/kg	Edmunds, Peter J	Calculated using seacarb
21	Carbon, inorganic, dissolved, standard error	DIC std e	±	Edmunds, Peter J	Calculated using seacarb
22	Replicates	Repl	#	Edmunds, Peter J
23	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Edmunds, Peter J	Calculated using seacarb
24	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Edmunds, Peter J	Calculated using seacarb
25	Replicates	Repl	#	Edmunds, Peter J
26	Aragonite saturation state	Omega Arg		Edmunds, Peter J	Calculated using seacarb
27	Aragonite saturation state, standard error	Omega Arg std e	±	Edmunds, Peter J	Calculated using seacarb
28	Replicates	Repl	#	Edmunds, Peter J
29	Temperature, water	Temp	°C	Edmunds, Peter J
30	Temperature, water, standard error	T std e	±	Edmunds, Peter J
31	Replicates	Repl	#	Edmunds, Peter J
32	Salinity	Sal		Edmunds, Peter J
33	Salinity, standard error	Sal std e	±	Edmunds, Peter J
34	Replicates	Repl	#	Edmunds, Peter J
35	Irradiance	E	µmol/m²/s	Edmunds, Peter J
36	Irradiance, standard error	E std e	±	Edmunds, Peter J
37	Replicates	Repl	#	Edmunds, Peter J
38	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
39	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
40	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)
41	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)
42	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
43	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
44	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
45	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
46	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:

1334 data points

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