Citation:

lo.2011.56.3.0927

Name: Seawater carbonate chemistry and growth rate during experiments with phylotypes of Symbiodinium (Dinophyceae), 2011
Published: 2011-11-10
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Bottles or small containers/Aquaria (<20 L); Chromista; Growth/Morphology; Laboratory experiment; Laboratory strains; Myzozoa; Not applicable; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; Symbiodinium sp.

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Published: 2011-11-10 • DOI registered: 2011-12-08

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Abstract:

We investigated the effect of elevated partial pressure of CO2 (pCO2) on the photosynthesis and growth of four phylotypes (ITS2 types A1, A13, A2, and B1) from the genus Symbiodinium, a diverse dinoflagellate group that is important, both free-living and in symbiosis, for the viability of cnidarians and is thus a potentially important model dinoflagellate group. The response of Symbiodinium to an elevated pCO2 was phylotype-specific. Phylotypes A1 and B1 were largely unaffected by a doubling in pCO2 in contrast, the growth rate of A13 and the photosynthetic capacity of A2 both increased by ~ 60%. In no case was there an effect of ocean acidification (OA) upon respiration (dark- or light-dependent) for any of the phylotypes examined. Our observations suggest that OA might preferentially select among free-living populations of Symbiodinium, with implications for future symbioses that rely on algal acquisition from the environment (i.e., horizontal transmission). Furthermore, the carbon environment within the host could differentially affect the physiology of different Symbiodinium phylotypes. The range of responses we observed also highlights that the choice of species is an important consideration in OA research and that further investigation across phylogenetic diversity, for both the direction of effect and the underlying mechanism(s) involved, is warranted.

Keyword(s):

Bottles or small containers/Aquaria (<20 L); Chromista; Growth/Morphology; Laboratory experiment; Laboratory strains; Myzozoa; Not applicable; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; Symbiodinium sp.

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	Identification	ID		Brading, Patrick
2	Experimental treatment	Exp treat		Brading, Patrick
3	Salinity	Sal		Brading, Patrick
4	Temperature, water	Temp	°C	Brading, Patrick
5	Radiation, photosynthetically active	PAR	µmol/m²/s	Brading, Patrick
6	pH, total scale	pHT		Brading, Patrick	Ross Ultra pH electrode (model 8103BNUWP, Thermo Fisher Scientific)	Total scale
7	Alkalinity, total	AT	µmol/kg	Brading, Patrick	Calculated using CO2SYS
8	Alkalinity, total, standard error	AT std e	±	Brading, Patrick
9	Carbon, inorganic, dissolved	DIC	µmol/kg	Brading, Patrick	TOC analyzer (Shimadzu)
10	Carbon, inorganic, dissolved, standard error	DIC std e	±	Brading, Patrick
11	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Brading, Patrick	Calculated using CO2SYS
12	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard error	pCO2water_SST_wet std e	±	Brading, Patrick
13	Bicarbonate ion	[HCO3]-	µmol/kg	Brading, Patrick	Calculated using CO2SYS
14	Bicarbonate ion, standard error	[HCO3]- std e	±	Brading, Patrick
15	Carbonate ion	[CO3]2-	µmol/kg	Brading, Patrick	Calculated using CO2SYS
16	Carbonate ion, standard error	[CO3]2- std e	±	Brading, Patrick
17	Carbon dioxide	CO2	µmol/kg	Brading, Patrick	Calculated using CO2SYS
18	Carbon dioxide, standard error	CO2 std e	±	Brading, Patrick
19	Calcite saturation state	Omega Cal		Brading, Patrick	Calculated using CO2SYS
20	Calcite saturation state, standard deviation	Omega Cal std dev	±	Brading, Patrick
21	Aragonite saturation state	Omega Arg		Brading, Patrick	Calculated using CO2SYS
22	Aragonite saturation state, standard deviation	Omega Arg std dev	±	Brading, Patrick
23	Maximum potential capacity of photosynthesis, oxygen production, per cell	Pmax O2/cell	fmol/#/h	Brading, Patrick
24	Photosynthetic efficiency per cell, oxygen production	alpha/cell	(fmol/#/h)/(µmol photons)	Brading, Patrick
25	Light saturation	Ek	µmol/m²/s	Brading, Patrick
26	Carbon/Chlorophyll a ratio	C/Chl a		Brading, Patrick		[g/g]
27	Growth rate	µ	#/day	Brading, Patrick	Calculated
28	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
29	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
30	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)
31	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)
32	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
33	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
34	Alkalinity, total	AT	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
35	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
36	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:

5700 data points

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