Citation:

PANGAEA.920872

Name: Seawater carbonate chemistry and net community calcification, production and respiration of coral reef
Published: 2020-07-27
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Laboratory experiment; Mesocosm or benthocosm; North Pacific; Other; Primary production/Photosynthesis; Respiration; Rocky-shore community; Tropical

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Abstract:

Previous studies have found that calcification in coral reefs is generally stronger during the day, whereas dissolution is prevalent at night. On the basis of these contrasting patterns, the diel variations of net community calcification (NCC) were monitored to examine the relative sensitivity of CaCO3 production (calcification) and dissolution in coral reefs to ocean acidification (OA), using two mesocosms that replicated a typical subtropical coral reef ecosystem in southern Taiwan. The results revealed that the daytime NCC remained unchanged, whereas the nighttime NCC decreased between the control (ambient) and treatment (OA) conditions, suggesting that carbonate dissolution could be more sensitive to OA than coral calcification. The average sensitivity of the integrated daily NCC to changes in the seawater saturation state (Omega a) was estimated to be a reduction of 54% in NCC per unit change in Omega a, which is consistent with the global average. In summary, our results support the prevailing anticipation that OA would lead to a reduction in the overall accretion of coral reef ecosystems. However, increased CaCO3 dissolution rather than decreased coral calcification could be the dominant driving force responsible for this OA-induced reduction in NCC.

Keyword(s):

Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Laboratory experiment; Mesocosm or benthocosm; North Pacific; Other; Primary production/Photosynthesis; Respiration; Rocky-shore community; Tropical

Supplement to:

Chou, Wen-Chen; Liu, Pi-Jen; Chen, Ying Hsuan; Huang, Wei-Jen (2020): Contrasting Changes in Diel Variations of Net Community Calcification Support That Carbonate Dissolution Can Be More Sensitive to Ocean Acidification Than Coral Calcification. Frontiers in Marine Science, 7, https://doi.org/10.3389/fmars.2020.00003

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 2020-07-07.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Chou, Wen-Chen		study
2	Experiment duration	Exp duration	days	Chou, Wen-Chen
3	Treatment	Treat		Chou, Wen-Chen
4	Identification	ID		Chou, Wen-Chen		WoRMS Aphia ID
5	Salinity	Sal		Chou, Wen-Chen
6	Temperature, water	Temp	°C	Chou, Wen-Chen
7	Carbon, inorganic, dissolved	DIC	µmol/kg	Chou, Wen-Chen	CO2-analyzer, nondispersive infrared gas analyzer with water vapor freeze trap
8	Alkalinity, total	AT	µmol/kg	Chou, Wen-Chen	Potentiometric titration
9	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Chou, Wen-Chen	Calculated using CO2SYS
10	pH	pH		Chou, Wen-Chen	Spectrophotometric	total scale
11	Aragonite saturation state	Omega Arg		Chou, Wen-Chen	Calculated using CO2SYS
12	Oxygen, dissolved	DO	mg/l	Chou, Wen-Chen
13	Time point, descriptive	Time point		Chou, Wen-Chen
14	Net calcification rate of calcium carbonate	NC CaCO3	mmol/m²/h	Chou, Wen-Chen
15	Net calcification rate of calcium carbonate	NC CaCO3	mmol/m²/h	Chou, Wen-Chen		Daily
16	Net community calcification, light	NC light	mmol/m²/h	Chou, Wen-Chen		Day time
17	Calcification rate, standard deviation	Calc rate std dev	±	Chou, Wen-Chen		Day time
18	Net community calcification, dark	NC dark	mmol/m²/h	Chou, Wen-Chen		Night time
19	Calcification rate, standard deviation	Calc rate std dev	±	Chou, Wen-Chen		Night time
20	Net community production, oxygen	NCP O2	mmol/m²/h	Chou, Wen-Chen		Daily
21	Net community production, standard deviation	netOX std dev	±	Chou, Wen-Chen		Daily
22	Net community production, oxygen	NCP O2	mmol/m²/h	Chou, Wen-Chen
23	Respiration rate, oxygen	Resp O2	mmol/m²/h	Chou, Wen-Chen
24	Net community production, oxygen	NCP O2	mmol/m²/h	Chou, Wen-Chen		Day time
25	Net community production, standard deviation	netOX std dev	±	Chou, Wen-Chen		Day time
26	Respiration rate, oxygen	Resp O2	mmol/m²/h	Chou, Wen-Chen
27	Respiration rate, oxygen, standard deviation	Resp O2 std dev	±	Chou, Wen-Chen
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:

12436 data points

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