Citation:

PANGAEA.923623

Name: Seawater carbonate chemistry and calcification of an estuarine coccolithophore
Published: 2018
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Calcification/Dissolution; Chromista; Containers and aquaria (20-1000 L or < 1 m**2); Haptophyta; Laboratory experiment; Laboratory strains; Light; Not applicable; Other; Pelagos; Phytoplankton; Pleurochrysis carterae; Primary production/Photosynthesis; Single species

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Abstract:

Ocean acidification has the capacity to impact future coccolithophore growth, photosynthesis, and calcification, but experimental culture work with coccolithophores has produced seemingly contradictory results and has focused on open-ocean species. We investigated the influence of pCO2 (between 250 and 750 µatm) on the growth, photosynthetic, and calcification rates of the estuarine coccolithophore Pleurochrysis carterae using a CO2 manipulation system that allowed for natural carbonate chemistry variability, representing the highly variable carbonate chemistry of coastal and estuarine waters. We further considered the influence of pCO2 on dark calcification. Increased pCO2 conditions had no significant impact on P. carterae growth rate or photosynthetic rate. However, P. carterae calcification rates significantly increased at elevated mean pCO2 concentrations of 750 µatm. P. carterae calcification was somewhat, but not completely, light-dependent, with increased calcification rates at elevated mean pCO2 conditions in both light and dark incubations. This trend of increased calcification at higher pCO2 conditions fits into a recently developed substrate-inhibitor concept, which demonstrates a calcification optima concept that broadly fits the experimental results of many studies on the impact of increased pCO2 on coccolithophore calcification.

Keyword(s):

Calcification/Dissolution; Chromista; Containers and aquaria (20-1000 L or < 1 m**2); Haptophyta; Laboratory experiment; Laboratory strains; Light; Not applicable; Other; Pelagos; Phytoplankton; Pleurochrysis carterae; Primary production/Photosynthesis; Single species

Supplement to:

White, Meredith M; Drapeau, Dave T; Lubelczyk, Laura C; Abel, Victoria C; Bowler, Bruce C; Balch, William M (2018): Calcification of an estuarine coccolithophore increases with ocean acidification when subjected to diurnally fluctuating carbonate chemistry. Marine Ecology Progress Series, 601, 59-76, https://doi.org/10.3354/meps12639

Original version:

Balch, William M (2015): Project: Effects of ocean acidification on Emiliania huxleyi and Calanus finmarchicus; insights into the oceanic alkalinity and biological carbon pumps. The Biological and Chemical Oceanography Data Management Office, https://www.bco-dmo.org/project/514415

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

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

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 2020-09-27.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Balch, William M		study
2	Species	Species		Balch, William M
3	Registration number of species	Reg spec no		Balch, William M
4	Uniform resource locator/link to reference	URL ref		Balch, William M		WoRMS Aphia ID
5	Treatment	Treat		Balch, William M
6	Time of day	Time of day		Balch, William M		approx
7	Time in hours	Time	h	Balch, William M		elapsed
8	Date	Date		Balch, William M
9	Light mode	L mode		Balch, William M
10	pH	pH		Balch, William M		total scale
11	Temperature, water	Temp	°C	Balch, William M
12	Salinity	Sal		Balch, William M
13	Fluorescence	Fluorescence		Balch, William M		inVivo
14	Cell density	Cells	#/ml	Balch, William M
15	Cell, diameter	Cell diam	µm	Balch, William M
16	Fluorescence	Fluorescence		Balch, William M		Per Cell Density
17	Carbon, inorganic, particulate	PIC	µg/l	Balch, William M
18	Carbon, inorganic, particulate, per cell	PIC/cell	pg/#	Balch, William M
19	Nitrate and Nitrite	[NO3]- + [NO2]-	µmol/kg	Balch, William M
20	Nitrate	NITRATE	µmol/kg	Balch, William M		measured at the University of California Santa Barbara
21	Nitrate	NITRATE	µmol/kg	Balch, William M		measured by Bigelow Analytical Services
22	Phosphate	PHSPHT	µmol/kg	Balch, William M		measured at the University of California Santa Barbara
23	Phosphate	PHSPHT	µmol/kg	Balch, William M		measured by Bigelow Analytical Services
24	Silicate	SILCAT	µmol/kg	Balch, William M		measured at the University of California Santa Barbara
25	Silicate	SILCAT	µmol/kg	Balch, William M		mean
26	Alkalinity, total	AT	µmol/kg	Balch, William M
27	Carbon, inorganic, dissolved	DIC	µmol/kg	Balch, William M	Calculated using CO2SYS
28	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Balch, William M	Calculated using CO2SYS
29	Bicarbonate ion	[HCO3]-	µmol/kg	Balch, William M	Calculated using CO2SYS
30	Carbonate ion	[CO3]2-	µmol/kg	Balch, William M	Calculated using CO2SYS
31	Carbon dioxide	CO2	µmol/kg	Balch, William M	Calculated using CO2SYS
32	Calcite saturation state	Omega Cal		Balch, William M	Calculated using CO2SYS
33	Time in days	Time	days	Balch, William M
34	Carbon, organic, particulate	POC	µg/l	Balch, William M
35	Carbon, organic, particulate, per cell	POC/cell	pg/#	Balch, William M
36	Nitrite	NITRITE	µmol/kg	Balch, William M
37	Nitrate	NITRATE	µmol/kg	Balch, William M		calculated from the total N and nitrite measurements
38	Phosphate	PHSPHT	µmol/kg	Balch, William M
39	Replicate	Repl		Balch, William M
40	Photosynthesis rate of carbon	Photosynth C	µg/l/day	Balch, William M
41	Calcification rate of carbon	Calc rate C	µg/l/day	Balch, William M
42	Photosynthesis rate of carbon	Photosynth C	µg/l/day	Balch, William M		corrected to a 14-10 h light-dark cycle
43	Calcification rate of carbon	Calc rate C	µg/l/day	Balch, William M		corrected to a 14-10 h light-dark cycle
44	Photosynthesis rate, carbon, per cell	Photosynth C/cell	µg/#/day	Balch, William M
45	Photosynthesis rate, carbon, per cell	Photosynth C/cell	pmol/#/day	Balch, William M
46	Calcification rate of carbon per cell	Calc rate C/cell	µg/#/day	Balch, William M
47	Calcification rate of carbon per cell	Calc rate C/cell	pmol/#/day	Balch, William M
48	Particulate inorganic carbon/particulate organic carbon ratio	PIC/POC		Balch, William M
49	Sample code/label	Sample label		Balch, William M
50	Light mode	L mode		Balch, William M
51	Coccoliths	Cocco	#	Balch, William M		attached
52	Coccoliths	Cocco	#	Balch, William M		attached_blankCorrected
53	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
54	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
55	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)
56	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)
57	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
58	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
59	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
60	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
61	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

4198 data points

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