Citation:

s00227-012-2001-y

Name: Growth, respiration and photophysiology of coral massive Porites spp. in the experiment of Moorea
Creator: Peter J Edmunds
Published: 2012
License: https://creativecommons.org/licenses/by/3.0/
Keywords: 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; Porites sp.; Primary production/Photosynthesis; Respiration; Single species; South Pacific; Tropical

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Abstract:

I tested the hypothesis that high pCO2 (76.6 Pa and 87.2 Pa vs. 42.9 Pa) has no effect on the metabolism of juvenile massive Porites spp. after 11 days at 28 °C and 545 µmol quanta/m**2/s. The response was assessed as aerobic dark respiration, skeletal weight (i.e., calcification), biomass, and chlorophyll fluorescence. Corals were collected from the shallow (3-4 m) back reef of Moorea, French Polynesia (17°28.614'S, 149°48.917'W), and experiments conducted during April and May 2011. An increase in pCO2 to 76.6 Pa had no effect on any dependent variable, but 87.2 Pa pCO2 reduced area-normalized (but not biomass-normalized) respiration 36 %, as well as maximum photochemical efficiency (Fv/Fm) of open RCIIs and effective photochemical efficiency of RCIIs in actinic light (Delta F/F'm ); neither biomass, calcification, nor the energy expenditure coincident with calcification (J/g) was effected. These results do not support the hypothesis that high pCO2 reduces coral calcification through increased metabolic costs and, instead, suggest that high pCO2 causes metabolic depression and photochemical impairment similar to that associated with bleaching. Evidence of a pCO2 threshold between 76.6 and 87.2 Pa for inhibitory effects on respiration and photochemistry deserves further attention as it might signal the presence of unpredictable effects of rising pCO2.

Keyword(s):

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; Porites sp.; Primary production/Photosynthesis; Respiration; Single species; South Pacific; Tropical

Further details:

Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4. https://cran.r-project.org/package=seacarb

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Coverage:

Latitude: -17.476900 * Longitude: -149.815300

Date/Time Start: 2011-04-01T00:00:00 * Date/Time End: 2011-08-31T00:00:00

Minimum Elevation: -4.0 m * Maximum Elevation: -2.0 m

Event(s):

Moorea * Latitude: -17.476900 * Longitude: -149.815300 * Date/Time Start: 2011-04-01T00:00:00 * Date/Time End: 2011-08-31T00:00:00 * Elevation Start: -2.0 m * Elevation End: -4.0 m * Location: French Polynesia * Method/Device: Experiment (EXP)

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). The date of carbonate chemistry calculation by seacarb is 2013-10-11.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Species	Species		Edmunds, Peter J
2	Sample code/label	Sample label		Edmunds, Peter J
3	Treatment	Treat		Edmunds, Peter J		LT-AC = ambient pCO2, LT-MC = medium pCO2, LT-HC = high pCO2
4	Surface area	SA	cm²	Edmunds, Peter J
5	Respiration rate, oxygen	Resp O2	µmol/cm²/h	Edmunds, Peter J		Dark
6	Calcification rate of calcium carbonate	Calc rate CaCO3	mg/cm²/day	Edmunds, Peter J
7	Metabolic expenditure	Met exp	J/g	Edmunds, Peter J
8	Respiration rate, oxygen	Resp O2	µmol/mg/h	Edmunds, Peter J		Dark respiration normalized to biomass
9	Calcification rate of calcium carbonate	Calc rate CaCO3	mg/mg/day	Edmunds, Peter J		Normalized to biomass
10	Biomass	Biom	mg/cm²	Edmunds, Peter J
11	Effective photochemical quantum yield	phi PS II		Edmunds, Peter J
12	Maximum photochemical quantum yield of photosystem II	Fv/Fm		Edmunds, Peter J
13	Excitation pressure	Qm		Edmunds, Peter J
14	Fluorescence	Fluorescence	arbitrary units	Edmunds, Peter J		Yield in actinic light
15	Fluorescence, maximum	Fm		Edmunds, Peter J		Maximum fluorescence yield in actinic light
16	Fluorescence	Fluorescence	arbitrary units	Edmunds, Peter J		Yield in darkness
17	Fluorescence, maximum	Fm		Edmunds, Peter J
18	Temperature, water	Temp	°C	Edmunds, Peter J
19	Temperature, water, standard error	T std e	±	Edmunds, Peter J
20	Irradiance	E	µmol/m²/s	Edmunds, Peter J
21	Irradiance, standard error	E std e	±	Edmunds, Peter J
22	Salinity	Sal		Edmunds, Peter J
23	pH	pH		Edmunds, Peter J	Spectrophotometric	Total scale, measured at 25 centi degree
24	pH, standard error	pH std e	±	Edmunds, Peter J	Spectrophotometric	Total scale, measured at 25 centi degree
25	Alkalinity, total	AT	µmol/kg	Edmunds, Peter J	Potentiometric titration
26	Alkalinity, total, standard error	AT std e	±	Edmunds, Peter J	Potentiometric titration
27	Aragonite saturation state	Omega Arg		Edmunds, Peter J	Calculated using CO2SYS
28	Aragonite saturation state, standard error	Omega Arg std e	±	Edmunds, Peter J	Calculated using CO2SYS
29	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	Pa	Edmunds, Peter J
30	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Edmunds, Peter J	Calculated using CO2SYS
31	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	Total scale, in situ pH
33	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	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)
35	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)
36	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
39	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
40	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1160 data points

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