Citation:

PANGAEA.914289

Name: Seawater carbonate chemistry and photo-physiological fitness, growth and carbon production of the Antarctic cryptophyte Geminigera cryophila
Published: 2020-04-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Chromista; Cryptophyta; Geminigera cryophila; Growth/Morphology; Laboratory experiment; Laboratory strains; Light; Not applicable; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species

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Abstract:

Ecophysiological studies on Antarctic cryptophytes to assess whether climatic changes such as ocean acidification and enhanced stratification affect their growth in Antarctic coastal waters in the future are lacking so far. This is the first study that investigates the combined effects of the increasing availability of pCO2 (400 and 1000 μatm) and irradiance (20, 200 and 500 μmol photons m-2 s-1) on growth, elemental composition and photo-physiology of the Antarctic cryptophyte Geminigera cryophila. Under ambient pCO2, this species was characterized by a pronounced sensitivity to increasing irradiance with complete growth inhibition at the highest light intensity. Interestingly, when grown under high pCO2 this negative light effect vanished, and it reached the highest rates of growth and particulate organic carbon production at the highest irradiance compared to the other tested experimental conditions. Our results for G. cryophila reveal beneficial effects of ocean acidification in conjunction with enhanced irradiance on growth and photosynthesis. Hence, cryptophytes such as G. cryophila may be potential winners of climate change, potentially thriving better in more stratified and acidic coastal waters and contributing in higher abundance to future phytoplankton assemblages of coastal Antarctic waters.

Keyword(s):

Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Chromista; Cryptophyta; Geminigera cryophila; Growth/Morphology; Laboratory experiment; Laboratory strains; Light; Not applicable; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species

Related to:

Trimborn, Scarlett; Thoms, Silke; Karitter, Pascal; Bischof, Kai (2019): Ocean acidification and high irradiance stimulate growth of the Antarctic cryptophyte Geminigera cryophila. Biogeosciences, 16, 2997–3008, https://doi.org/10.5194/bg-2019-97

Original version:

Trimborn, Scarlett (2019): Acidification and irradiance effect on the photo-physiological fitness, growth and carbon production of the Antarctic cryptophyte Geminigera cryophila [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.904010

Further details:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2019): seacarb: seawater carbonate chemistry with R. R package version 3.2.12. https://CRAN.R-project.org/package=seacarb

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 2020-03-18.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Trimborn, Scarlett		study
2	Species	Species		Trimborn, Scarlett
3	Registration number of species	Reg spec no		Trimborn, Scarlett
4	Uniform resource locator/link to reference	URL ref		Trimborn, Scarlett		WoRMS Aphia ID
5	Irradiance	E	µmol/m²/s	Trimborn, Scarlett		treatment
6	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Trimborn, Scarlett		treatment
7	Growth rate	µ	1/day	Trimborn, Scarlett
8	Growth rate, standard deviation	µ std dev	±	Trimborn, Scarlett
9	Carbon, organic, particulate, per cell	POC/cell	pg/#	Trimborn, Scarlett
10	Carbon, organic, particulate, standard deviation	POC std dev	±	Trimborn, Scarlett
11	Carbon, organic, particulate, production per cell	POC prod/cell	pg/#/day	Trimborn, Scarlett
12	Particulate organic carbon, production, standard deviation	POC prod std dev	±	Trimborn, Scarlett
13	Nitrogen, organic, particulate, per cell	PON/cell	pg/#	Trimborn, Scarlett
14	Nitrogen, organic, particulate, per cell, standard deviation	PON/cell std dev	±	Trimborn, Scarlett
15	Production of particulate organic nitrogen	PON prod	pg/#/day	Trimborn, Scarlett
16	Particulate organic nitrogen production, standard deviation	PON prod std dev	±	Trimborn, Scarlett
17	Carbon/Nitrogen ratio	C/N	mol/mol	Trimborn, Scarlett
18	Carbon/Nitrogen ratio, standard deviation	C/N std dev	±	Trimborn, Scarlett
19	Maximum photochemical quantum yield of photosystem II	Fv/Fm		Trimborn, Scarlett
20	Maximum photochemical quantum yield of photosystem II, standard deviation	Fv/Fm std dev	±	Trimborn, Scarlett
21	Recovery	Recovery	%	Trimborn, Scarlett		Fv/Fm recovery [% of initial]
22	Recovery, standard deviation	Recov std dev	±	Trimborn, Scarlett		Fv/Fm recovery [% of initial]
23	Functional photosystem II reaction centers, per cell	RCII/cell	zmol/#	Trimborn, Scarlett
24	Functional photosystem II reaction centers, standard deviation	RCII std dev	±	Trimborn, Scarlett
25	Connectivity between photosystem II	p		Trimborn, Scarlett
26	Connectivity between photosystem II, standard deviation	p std dev	±	Trimborn, Scarlett
27	Functional absorption cross sections of photosystem II reaction centers	Sigma PSII	nm²	Trimborn, Scarlett
28	Functional absorption cross sections of photosystem II reaction centers, standard deviation	Sigma PSII std dev	±	Trimborn, Scarlett
29	Re-oxidation time of the Qa acceptor	tQa	µs	Trimborn, Scarlett
30	Re-oxidation time of the Qa acceptor, standard deviation	tQa std dev	±	Trimborn, Scarlett
31	Irradiance	E	µmol/m²/s	Trimborn, Scarlett
32	Electron transport rate, absolute	aETR	e/PSII/s	Trimborn, Scarlett
33	Electron transport rate, absolute, standard deviation	aETR std dev	±	Trimborn, Scarlett
34	Non photochemical quenching	NPQ		Trimborn, Scarlett
35	Non photochemical quenching, standard deviation	NPQ std dev	±	Trimborn, Scarlett
36	Temperature, water	Temp	°C	Trimborn, Scarlett
37	Salinity	Sal		Trimborn, Scarlett
38	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Trimborn, Scarlett		abiotic
39	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Trimborn, Scarlett		abiotic
40	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Trimborn, Scarlett		biotic
41	Partial pressure of carbon dioxide, standard deviation	pCO2 std dev	±	Trimborn, Scarlett		biotic
42	pH	pH		Trimborn, Scarlett		abiotic, NBS scale
43	pH, standard deviation	pH std dev	±	Trimborn, Scarlett		abiotic, NBS scale
44	pH	pH		Trimborn, Scarlett		biotic, NBS scale
45	pH, standard deviation	pH std dev	±	Trimborn, Scarlett		biotic, NBS scale
46	Carbon, inorganic, dissolved	DIC	µmol/kg	Trimborn, Scarlett		abiotic
47	Carbon, inorganic, dissolved, standard deviation	DIC std dev	±	Trimborn, Scarlett		abiotic
48	Carbon, inorganic, dissolved	DIC	µmol/kg	Trimborn, Scarlett		biotic
49	Carbon, inorganic, dissolved, standard deviation	DIC std dev	±	Trimborn, Scarlett		biotic
50	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
51	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic, total scale
52	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic
53	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)	abiotic
54	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)	abiotic
55	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic
56	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic
57	Alkalinity, total	AT	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic
58	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic
59	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	abiotic
60	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic, total scale
61	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic
62	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)	biotic
63	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)	biotic
64	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic
65	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic
66	Alkalinity, total	AT	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic
67	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic
68	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	biotic

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

2200 data points

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