Citation:

s00227-012-2090-7

Name: Seawater carbonate chemistry, physiology and skeletal mineralogy of coralline alga Corallina elongata in a laboratory experiment
Published: 2013
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Coast and continental shelf; Corallina elongata; Laboratory experiment; Macroalgae; North Atlantic; Plantae; Primary production/Photosynthesis; Respiration; Rhodophyta; Single species; Temperate

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Abstract:

Marine organisms inhabiting environments where pCO2/pH varies naturally are suggested to be relatively resilient to future ocean acidification. To test this hypothesis, the effect of elevated pCO2 was investigated in the articulated coralline red alga Corallina elongata from an intertidal rock pool on the north coast of Brittany (France), where pCO2 naturally varied daily between 70 and 1000 µatm. Metabolism was measured on algae in the laboratory after they had been grown for 3 weeks at pCO2 concentrations of 380, 550, 750 and 1000 µatm. Net and gross primary production, respiration and calcification rates were assessed by measurements of oxygen and total alkalinity fluxes using incubation chambers in the light and dark. Calcite mol % Mg/Ca (mMg/Ca) was analysed in the tips, branches and basal parts of the fronds, as well as in new skeletal structures produced by the algae in the different pCO2 treatments. Respiration, gross primary production and calcification in light and dark were not significantly affected by increased pCO2. Algae grown under elevated pCO2 (550, 750 and 1000 µatm) formed fewer new structures and produced calcite with a lower mMg/Ca ratio relative to those grown under 380 µatm. This study supports the assumption that C. elongata from a tidal pool, where pCO2 fluctuates over diel and seasonal cycles, is relatively robust to elevated pCO2 compared to other recently investigated coralline algae.

Keyword(s):

Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Coast and continental shelf; Corallina elongata; Laboratory experiment; Macroalgae; North Atlantic; Plantae; Primary production/Photosynthesis; Respiration; Rhodophyta; Single species; Temperate

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: 48.690830 * Longitude: -4.121000

Date/Time Start: 2012-10-01T00:00:00 * Date/Time End: 2012-10-30T00:00:00

Event(s):

Les_Amiets * Latitude: 48.690830 * Longitude: -4.121000 * Date/Time Start: 2012-10-01T00:00:00 * Date/Time End: 2012-10-30T00:00:00 * 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 2014-04-15.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Species	Species		Egilsdottir, Hronn
2	Identification	ID		Egilsdottir, Hronn
3	Replicates	Repl	#	Egilsdottir, Hronn		tank
4	Irradiance	E	µmol/m²/s	Egilsdottir, Hronn
5	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Egilsdottir, Hronn		treatment
6	Dry mass	Dry m	g	Egilsdottir, Hronn
7	Chlorophyll a	Chl a	µg/g	Egilsdottir, Hronn
8	Carbon dioxide, flux	CO2 flux	µmol/g/h	Egilsdottir, Hronn		per dry weight
9	Calcification rate of calcium carbonate	Calc rate CaCO3	µmol/g/h	Egilsdottir, Hronn	Alkalinity anomaly technique (Smith and Key, 1975)	per dry weight
10	Net photosynthesis rate, oxygen	PN O2	µmol/g/h	Egilsdottir, Hronn
11	Respiration rate, oxygen	Resp O2	µmol/g/h	Egilsdottir, Hronn
12	Gross photosynthesis rate, oxygen	PG O2	µmol/g/h	Egilsdottir, Hronn
13	Calcification rate of calcium carbonate	Calc rate CaCO3	µmol/g/h	Egilsdottir, Hronn		gross, per dry weight
14	Magnesium/Calcium ratio	Mg/Ca		Egilsdottir, Hronn
15	Salinity	Sal		Egilsdottir, Hronn
16	Temperature, water	Temp	°C	Egilsdottir, Hronn
17	Temperature, water, standard error	T std e	±	Egilsdottir, Hronn
18	pH	pH		Egilsdottir, Hronn	Potentiometric	total scale
19	pH, standard error	pH std e	±	Egilsdottir, Hronn	Potentiometric	total scale
20	Alkalinity, total	AT	µmol/kg	Egilsdottir, Hronn	Potentiometric titration
21	Alkalinity, total, standard error	AT std e	±	Egilsdottir, Hronn	Potentiometric titration
22	Partial pressure of carbon dioxide (water) at equilibrator temperature (wet air)	pCO2water_equ_wet	µatm	Egilsdottir, Hronn	Calculated using CO2SYS
23	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
24	Carbon, inorganic, dissolved	DIC	µmol/kg	Egilsdottir, Hronn	Calculated using CO2SYS
25	Carbon, inorganic, dissolved, standard error	DIC std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
26	Carbonate ion	[CO3]2-	µmol/kg	Egilsdottir, Hronn	Calculated using CO2SYS
27	Carbonate ion, standard error	[CO3]2- std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
28	Bicarbonate ion	[HCO3]-	µmol/kg	Egilsdottir, Hronn	Calculated using CO2SYS
29	Bicarbonate ion, standard error	[HCO3]- std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
30	Carbon dioxide	CO2	µmol/kg	Egilsdottir, Hronn	Calculated using CO2SYS
31	Carbon dioxide, standard error	CO2 std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
32	Aragonite saturation state	Omega Arg		Egilsdottir, Hronn	Calculated using CO2SYS
33	Aragonite saturation state, standard error	Omega Arg std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
34	Calcite saturation state	Omega Cal		Egilsdottir, Hronn	Calculated using CO2SYS
35	Calcite saturation state, standard error	Omega Cal std e	±	Egilsdottir, Hronn	Calculated using CO2SYS
36	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	Partial pressure of carbon dioxide (water) at equilibrator temperature (wet air)	pCO2water_equ_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
39	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)
40	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
41	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
42	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
43	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
44	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:

2968 data points

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