Citation:

j.1529-8817.2011.01080.x

Name: Seawater carbonate chemistry, nutrients, particulate carbon and growth rate of Emiliania huxleyi (AC472), Calcidiscus leptoporus (AC370) and Syracosphaera pulchra (AC418) during experiments, 2011
Published: 2011
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Calcidiscus leptoporus; Calcification/Dissolution; Chromista; Emiliania huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; South Pacific; Syracosphaera pulchra

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Abstract:

The response of Emiliania huxleyi (Lohmann) W. W. Hay et H. Mohler, Calcidiscus leptoporus (G. Murray et V. H. Blackman) J. Schiller, andSyracosphaera pulchra Lohmann to elevated partial pressure of carbon dioxide (pCO2) was investigated in batch cultures. We reported on the response of both haploid and diploid life stages of these three species. Growth rate, cell size, particulate inorganic carbon (PIC), and particulate organic carbon (POC) of both life stages were measured at two different pCO2 (400 and 760 parts per million [ppm]), and their organic and inorganic carbon production were calculated. The two life stages within the same species generally exhibited a similar response to elevated pCO2, the response of the haploid stage being often more pronounced than that of the diploid stage. The growth rate was consistently higher at elevated pCO2, but the response of other processes varied among species. Calcification rate of C. leptoporusand of S. pulchra did not change at elevated pCO2, whereas it increased in E. huxleyi. POC production and cell size of both life stages of S. pulchra and of the haploid stage of E. huxleyi markedly decreased at elevated pCO2. It remained unaltered in the diploid stage of E. huxleyi and C. leptoporus and increased in the haploid stage of the latter. The PIC:POC ratio increased in E. huxleyi and was constant in C. leptoporus and S. pulchra. Elevated pCO2 has a significant effect on these three coccolithophore species, the haploid stage being more sensitive. This effect must be taken into account when predicting the fate of coccolithophores in the future ocean.

Keyword(s):

Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Calcidiscus leptoporus; Calcification/Dissolution; Chromista; Emiliania huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; South Pacific; Syracosphaera pulchra

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	Species	Species		Fiorini, Sarah
2	Experimental treatment	Exp treat		Fiorini, Sarah
3	Identification	ID		Fiorini, Sarah
4	Light:Dark cycle	L:D	hh:hh	Fiorini, Sarah	Measured
5	Radiation, photosynthetically active	PAR	µmol/m²/s	Fiorini, Sarah
6	Salinity	Sal		Fiorini, Sarah
7	Temperature, water	Temp	°C	Fiorini, Sarah
8	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Fiorini, Sarah	Calculated using seacarb
9	Carbon dioxide	CO2	µmol/kg	Fiorini, Sarah	Calculated using seacarb
10	Bicarbonate ion	[HCO3]-	µmol/kg	Fiorini, Sarah	Calculated using seacarb
11	Carbonate ion	[CO3]2-	µmol/kg	Fiorini, Sarah	Calculated using seacarb
12	Calcite saturation state	Omega Cal		Fiorini, Sarah	Calculated using seacarb
13	Carbon, inorganic, dissolved	DIC	µmol/kg	Fiorini, Sarah	Calculated using seacarb
14	Alkalinity, total	AT	µmol/kg	Fiorini, Sarah	Alkalinity, Gran titration (Gran, 1950)
15	pH	pH		Fiorini, Sarah	pH meter (Metrohm electrodes)	Total scale
16	Nitrate	[NO3]-	µmol/l	Fiorini, Sarah
17	Phosphate	[PO4]3-	µmol/l	Fiorini, Sarah
18	Carbon/Nitrogen ratio	C/N		Fiorini, Sarah
19	Carbon/Nitrogen ratio, standard deviation	C/N std dev	±	Fiorini, Sarah
20	Emiliania huxleyi	E. huxleyi	#/l	Fiorini, Sarah	Lemaur hemocytometer (Fisher Scientific)
21	Emiliania huxleyi, standard deviation	E. huxleyi std dev	±	Fiorini, Sarah
22	Calcidiscus leptoporus	C. leptoporus	#/l	Fiorini, Sarah	Lemaur hemocytometer (Fisher Scientific)
23	Calcidiscus leptoporus, standard deviation	C. leptoporus std dev	±	Fiorini, Sarah
24	Syracosphaera pulchra	S. pulchra	#/l	Fiorini, Sarah	Lemaur hemocytometer (Fisher Scientific)
25	Syracosphaera pulchra, standard deviation	S. pulchra std dev	±	Fiorini, Sarah
26	Phytoplankton, cell biovolume	PP biovol	µm³	Fiorini, Sarah
27	Phytoplankton, cell biovolume, standard deviation	Phytopl biovol std dev	±	Fiorini, Sarah
28	Growth rate	µ	#/day	Fiorini, Sarah	Calculated
29	Growth rate, standard deviation	µ std dev	±	Fiorini, Sarah
30	Carbon, inorganic, particulate, per cell	PIC/cell	pg/#	Fiorini, Sarah	Calculated
31	Particulate inorganic carbon per cell, standard deviation	PIC/cell std dev	±	Fiorini, Sarah
32	Particulate inorganic carbon production per cell	PIC prod/cell	pg/#/day	Fiorini, Sarah	Calculated
33	Particulate inorganic carbon, production, standard deviation	PIC prod std dev	±	Fiorini, Sarah
34	Particulate inorganic carbon/particulate organic carbon ratio	PIC/POC		Fiorini, Sarah
35	Particulate inorganic carbon/particulate organic carbon ratio, standard deviation	PIC/POC ratio std dev	±	Fiorini, Sarah
36	Carbon, organic, particulate, per cell	POC/cell	pg/#	Fiorini, Sarah	Element analyser, Thermo Finnigan flash EA 1112
37	Particulate organic carbon content per cell, standard deviation	POC cont/cell std dev	±	Fiorini, Sarah
38	Particulate organic carbon production per cell	POC prod/cell	pg/#/day	Fiorini, Sarah	Calculated
39	Particulate organic carbon, production, standard deviation	POC prod std dev	±	Fiorini, Sarah
40	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
41	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
42	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)
43	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)
44	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
45	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
46	Carbon, inorganic, dissolved	DIC	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
47	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
48	Calcite saturation state	Omega Cal		Nisumaa, Anne-Marin	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:

492 data points

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