Citation:

bg-7-247-2010

Name: Seawater carbonate chemistry and Globigerinoides sacculifer biological processes during experiments, 2010
Published: 2010-09-01
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Chromista; Coast and continental shelf; Foraminifera; Globigerinoides sacculifer; Growth/Morphology; Heterotrophic prokaryotes; Laboratory experiment; Light; North Atlantic; North Pacific; Orbulina universa; Pelagos; Single species; Temperate; Tropical

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Abstract:

The effect of carbonate ion concentration ([CO3]) on calcification rates estimated from shell size and weight was investigated in the planktonic foraminifera Orbulina universa and Globigerinoides sacculifer. Experiments on G. sacculifer were conducted under two irradiance levels (35 and 335 µmol photons m-2 s-1). Calcification was ca. 30% lower under low light than under high light, irrespective of the [CO3]. Both O. universa and G. sacculifer exhibited reduced final shell weight and calcification rate under low [CO3]. For the [CO3] expected at the end of the century, the calcification rates of these two species are projected to be 6 to 13% lower than the present conditions, while the final shell weights are reduced by 20 to 27% for O. universa and by 4 to 6% for G. sacculifer. These results indicate that ocean acidification would impact on calcite production by foraminifera and may decrease the calcite flux contribution from these organisms.

Keyword(s):

Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Chromista; Coast and continental shelf; Foraminifera; Globigerinoides sacculifer; Growth/Morphology; Heterotrophic prokaryotes; Laboratory experiment; Light; North Atlantic; North Pacific; Orbulina universa; Pelagos; Single species; Temperate; Tropical

Project(s):

European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)

European Project on Ocean Acidification (EPOCA)

Ocean Acidification International Coordination Centre (OA-ICC)

Funding:

Seventh Framework Programme (FP7), grant/award no. 211384 : European Project on Ocean Acidification

Sixth Framework Programme (FP6), grant/award no. 511106 : European network of excellence for Ocean Ecosystems Analysis

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).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Date	Date		Lombard, Fabien		Sampling
2	Date	Date		Lombard, Fabien		Gametogenesis
3	Experimental treatment	Exp treat		Lombard, Fabien
4	Experiment day	Exp day	day	Lombard, Fabien
5	Temperature, water	Temp	°C	Lombard, Fabien
6	Alkalinity, total	AT	µmol/kg	Lombard, Fabien	Alkalinity, Gran titration (Gran, 1950)	Initial
7	Alkalinity, total, standard deviation	AT std dev	±	Lombard, Fabien
8	pH	pH		Lombard, Fabien	Titration potentiometric	Initial, NBS scale
9	pH, standard deviation	pH std dev	±	Lombard, Fabien
10	Alkalinity, total	AT	µmol/kg	Lombard, Fabien	Alkalinity, Gran titration (Gran, 1950)	Final
11	Alkalinity, total, standard deviation	AT std dev	±	Lombard, Fabien
12	pH	pH		Lombard, Fabien	Titration potentiometric	Final, NBS scale
13	pH, standard deviation	pH std dev	±	Lombard, Fabien
14	Temperature, water	Temp	°C	Lombard, Fabien		At the time of titration
15	Salinity	Sal		Lombard, Fabien		Initial
16	Bicarbonate ion	[HCO3]-	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Initial
17	Carbonate ion	[CO3]2-	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Initial
18	Carbon dioxide	CO2	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Initial
19	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lombard, Fabien	Calculated using CO2SYS	Initial
20	Calcite saturation state	Omega Cal		Lombard, Fabien	Calculated using CO2SYS	Initial
21	Aragonite saturation state	Omega Arg		Lombard, Fabien	Calculated using CO2SYS	Initial
22	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Initial, total scale
23	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Initial, seawater scale
24	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Initial, free scale
25	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Initial, NBS scale
26	Temperature, water	Temp	°C	Lombard, Fabien		Final
27	Salinity	Sal		Lombard, Fabien		Final
28	Bicarbonate ion	[HCO3]-	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Final
29	Carbonate ion	[CO3]2-	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Final
30	Carbon dioxide	CO2	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Final
31	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lombard, Fabien	Calculated using CO2SYS	Final
32	Calcite saturation state	Omega Cal		Lombard, Fabien	Calculated using CO2SYS	Final
33	Aragonite saturation state	Omega Arg		Lombard, Fabien	Calculated using CO2SYS	Final
34	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Final, total scale
35	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Final, seawater scale
36	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Final, free scale
37	pH	pH		Lombard, Fabien	Calculated using CO2SYS	Final, NBS scale
38	Globigerinoides sacculifer, size average	G. sacculifer size	µm	Lombard, Fabien	Counting	initial
39	Globigerinoides sacculifer, size average	G. sacculifer size	µm	Lombard, Fabien	Counting	Final
40	Globigerinoides sacculifer, weight	G. sacculifer W	µg	Lombard, Fabien	Measured	Final
41	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
42	pH	pH		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean, total scale
43	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
44	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
45	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
46	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
47	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
48	Carbon, inorganic, dissolved	DIC	µmol/kg	Lombard, Fabien	Calculated using CO2SYS	Mean
49	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean
50	Calcite saturation state	Omega Cal		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Mean

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

8959 data points

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