Citation:

bg-8-771-2011

Name: Seawater carbonate chemistry and biological processes during experiments with Coccolithus braarudii, 2011
Published: 2011-06-29
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Chromista; Coccolithus braarudii; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; South Atlantic

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Abstract:

Ocean acidification and associated shifts in carbonate chemistry speciation induced by increasing levels of atmospheric carbon dioxide (CO2) have the potential to impact marine biota in various ways. The process of biogenic calcification, for instance, is usually shown to be negatively affected. In coccolithophores, an important group of pelagic calcifiers, changes in cellular calcification rates in response to changing ocean carbonate chemistry appear to differ among species. By applying a wider CO2 range we show that a species previously reported insensitive to seawater acidification, Coccolithusbraarudii, responds both in terms of calcification and photosynthesis, although at higher levels of CO2. Thus, observed differences between species seem to be related to individual sensitivities while the underlying mechanisms could be the same. On this basis we develop a conceptual model of coccolithophorid calcification and photosynthesis in response to CO2-induced changes in seawater carbonate chemistry speciation.

Keyword(s):

Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Chromista; Coccolithus braarudii; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; South Atlantic

Project(s):

Biological Impacts of Ocean Acidification (BIOACID)

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	Experimental treatment	Exp treat		Krug, Sebastian
2	Identification	ID		Krug, Sebastian
3	Salinity	Sal		Krug, Sebastian
4	Temperature, water	Temp	°C	Krug, Sebastian
5	Radiation, photosynthetically active	PAR	µmol/m²/s	Krug, Sebastian
6	Light:Dark cycle	L:D	hh:hh	Krug, Sebastian
7	Nitrate	NITRATE	µmol/kg	Krug, Sebastian
8	Phosphate	PHSPHT	µmol/kg	Krug, Sebastian
9	Carbon, inorganic, dissolved	DIC	µmol/kg	Krug, Sebastian	Photometrically using autoanalyzer QUAATRO
10	Alkalinity, total	AT	µmol/kg	Krug, Sebastian	Titration potentiometric, 794 Basic Titrino (Metrohm)
11	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Krug, Sebastian
12	Carbon dioxide	CO2	µmol/kg	Krug, Sebastian
13	Bicarbonate ion	[HCO3]-	µmol/kg	Krug, Sebastian
14	Carbonate ion	[CO3]2-	µmol/kg	Krug, Sebastian
15	Calcite saturation state	Omega Cal		Krug, Sebastian
16	pH	pH		Krug, Sebastian		Total scale
17	Particulate inorganic carbon production per cell	PIC prod/cell	µmol/#/day	Krug, Sebastian	Thermal conductivity meter
18	Particulate organic carbon production per cell	POC prod/cell	µmol/#/day	Krug, Sebastian	Thermal conductivity meter
19	Particulate inorganic carbon/particulate organic carbon ratio	PIC/POC		Krug, Sebastian
20	Carbon, organic, particulate/Nitrogen, organic, particulate ratio	POC/PON		Krug, Sebastian	Measured
21	Coccolithus braarudii, size	C. braarudii size	µm	Krug, Sebastian	Coulter counter
22	Coccolithus braarudii, size, standard deviation	C. braarudii size std dev	±	Krug, Sebastian	Coulter counter
23	Growth rate	µ	#/day	Krug, Sebastian	Calculated, see reference(s)
24	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
25	pH	pH		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Total scale
26	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
27	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)
28	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)
29	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
30	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
31	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
32	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:

930 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Exp treat	2 ID	3 Sal	4 Temp [°C]	5 PAR [µmol/m²/s]	6 L:D [hh:hh]	7 NITRATE [µmol/kg]	8 PHSPHT [µmol/kg]	9 DIC [µmol/kg] (Photometrically using autoana...)	10 AT [µmol/kg] (Titration potentiometric, 794...)	11 pCO2water_SST_wet [µatm]	12 CO2 [µmol/kg]	13 [HCO3]- [µmol/kg]	14 [CO3]2- [µmol/kg]	15 Omega Cal	16 pH (Total scale)	17 PIC prod/cell [µmol/#/day] (Thermal conductivity meter)	18 POC prod/cell [µmol/#/day] (Thermal conductivity meter)	19 PIC/POC	20 POC/PON (Measured)	21 C. braarudii size [µm] (Coulter counter)	22 C. braarudii size std dev [±] (Coulter counter)	23 µ [#/day] (Calculated, see reference(s))	24 CSC flag (Calculated using seacarb afte...)	25 pH (Total scale, Calculated using...)	26 CO2 [µmol/kg] (Calculated using seacarb afte...)	27 pCO2water_SST_wet [µatm] (Calculated using seacarb afte...)	28 fCO2water_SST_wet [µatm] (Calculated using seacarb afte...)	29 [HCO3]- [µmol/kg] (Calculated using seacarb afte...)	30 [CO3]2- [µmol/kg] (Calculated using seacarb afte...)	31 Omega Arg (Calculated using seacarb afte...)	32 Omega Cal (Calculated using seacarb afte...)
Experiment 1	NS-1	34	17	130	16:8	80	5	2048	2240	505	17.8	1887.9	142.3	3.4	7.96	359.3	217.3	1.7	8.6	19.07	1.92	0.7	15	7.97	17.11	483.83	482.15	1893.22	137.67	2.13	3.31
Experiment 1	NS-2	34	17	130	16:8	80	5	2058	2249	512	18.0	1898.0	142.0	3.4	7.96	334.8	199.8	1.7	8.6	19.70	1.94	0.6	15	7.96	17.34	490.21	488.51	1903.33	137.33	2.12	3.30
Experiment 1	NS-3	34	17	130	16:8	80	5	2062	2238	555	19.5	1909.9	132.6	3.2	7.92	310.9	227.2	1.4	7.8	19.53	1.84	0.6	15	7.93	18.83	532.44	530.59	1915.16	128.01	1.98	3.07
Experiment 1	NS-4	34	17	130	16:8	80	5	2058	2135	1015	35.7	1947.0	75.3	1.8	7.67	292.8	227.0	1.3	7.4	19.61	2.23	0.6	15	7.67	35.16	994.03	990.57	1951.64	71.21	1.10	1.71
Experiment 1	NS-5	34	17	130	16:8	80	5	2022	2077	1166	41.0	1917.4	63.6	1.5	7.60	267.4	397.4	0.7	8.7	19.60	2.18	0.5	15	7.60	40.65	1149.40	1145.40	1921.65	59.70	0.92	1.43
Experiment 1	NS-6	34	17	130	16:8	80	5	2057	2103	1273	44.8	1951.8	60.4	1.4	7.57	477.6	242.3	2.1	7.3	19.85	2.15	0.6	15	7.57	44.47	1257.29	1252.92	1955.99	56.55	0.87	1.36
Experiment 1	NS-7	34	17	130	16:8	80	5	2005	2021	1566	55.1	1903.2	46.7	1.1	7.47	124.4	134.2	0.9	9.6	16.02	2.32	0.4	15	7.46	55.22	1561.19	1555.77	1906.52	43.27	0.67	1.04
Experiment 1	NS-8	34	17	130	16:8	80	5	2048	2052	1755	61.7	1942.9	43.4	1.0	7.43	46.4	139.8	0.3	9.2	18.11	1.64	0.4	15	7.42	62.03	1753.87	1747.78	1945.85	40.12	0.62	0.96
Experiment 1	NS-9	34	17	130	16:8	80	5	2058	2041	2075	73.0	1948.1	36.9	0.9	7.36	75.9	146.4	0.5	9.4	16.63	1.72	0.5	15	7.35	73.65	2082.55	2075.31	1950.40	33.94	0.53	0.82
Experiment 1	NS-10	34	17	130	16:8	80	5	2032	2008	2170	76.3	1921.3	34.3	0.8	7.33	39.9	74.4	0.6	7.8	15.35	2.60	0.2	15	7.32	77.18	2182.15	2174.56	1923.32	31.50	0.49	0.76
Experiment 1	NS-11	34	17	130	16:8	80	5	2065	2030	2384	83.8	1949.0	32.2	0.8	7.30	12.3	107.1	0.1	6.4	11.34	2.95	0.1	15	7.29	84.86	2399.24	2390.91	1950.67	29.47	0.46	0.71
Experiment 1	NS-12	34	17	130	16:8	80	5	2060	2025	2380	83.7	1944.2	32.0	0.8	7.30	13.2	86.8	0.1	7.1	11.60	2.80	0.1	15	7.28	84.74	2395.87	2387.55	1945.89	29.37	0.45	0.71
Experiment 1	NS-13	34	17	130	16:8	80	5	2026	1943	3311	116.5	1887.8	21.7	0.5	7.14	8.1	41.9	0.2	7.5	10.51	3.41	0.1	15	7.13	118.36	3346.51	3334.88	1887.85	19.79	0.31	0.48
Experiment 1	NS-14	34	17	130	16:8	80	5	2035	1940	3581	126.0	1888.9	20.1	0.5	7.11	29.9	147.6	0.2	8.3	14.06	2.79	0.2	15	7.09	128.03	3620.13	3607.55	1888.66	18.31	0.28	0.44
Experiment 1	NS-15	34	17	130	16:8	80	5	2042	1945	3631	127.7	1894.4	19.9	0.5	7.10	14.1	79.1	0.2	7.2	12.73	2.70	0.1	15	7.09	129.78	3669.50	3656.75	1894.05	18.17	0.28	0.44
Experiment 2	AS-1	34	17	130	16:8	80	5	2132	2385	407	14.3	1932.7	185.0	4.4	8.06	388.0	212.0	1.8	6.5			0.7	15	8.07	13.70	387.50	386.15	1938.15	180.15	2.79	4.33
Experiment 2	AS-2	34	17	130	16:8	80	5	2122	2370	413	14.5	1926.2	181.3	4.3	8.06	290.0	187.0	1.6	6.8			0.8	15	8.07	13.90	392.90	391.53	1931.63	176.48	2.73	4.24
Experiment 2	AS-3	34	17	130	16:8	80	5	2131	2375	423	14.9	1937.2	178.9	4.3	8.05	363.0	247.0	1.5	7.3			0.7	15	8.06	14.25	402.84	401.44	1942.66	174.09	2.69	4.18
Experiment 2	AS-4	34	17	130	16:8	80	5	2048	2230	532	18.7	1893.3	136.0	3.2	7.94	235.0	242.0	1.0	9.8			0.6	15	7.95	18.04	509.96	508.19	1898.61	131.36	2.03	3.15
Experiment 2	AS-5	34	17	130	16:8	80	5	2053	2235	534	18.8	1898.1	136.1	3.2	7.94	301.0	192.0	1.6	7.4			0.6	15	7.95	18.11	511.96	510.18	1903.39	131.51	2.03	3.16
Experiment 2	AS-6	34	17	130	16:8	80	5	2068	2243	560	19.7	1916.1	132.2	3.2	7.92	251.0	203.0	1.2	8.3			0.6	15	7.93	19.02	537.82	535.95	1921.42	127.56	1.97	3.06
Experiment 2	AS-7	34	17	130	16:8	80	5	2061	2162	863	30.4	1942.5	88.2	2.1	7.74	277.0	243.0	1.1	8.2			0.8	15	7.74	29.72	840.34	837.42	1947.41	83.87	1.30	2.01
Experiment 2	AS-8	34	17	130	16:8	80	5	2055	2149	901	31.7	1939.1	84.2	2.0	7.72	402.0	226.0	1.8	6.1			0.8	15	7.72	31.07	878.50	875.45	1943.99	79.94	1.24	1.92
Experiment 2	AS-9	34	17	130	16:8	80	5	2059	2152	910	32.0	1943.2	83.8	2.0	7.72	344.0	221.0	1.7	6.3			0.8	15	7.72	31.37	886.97	883.89	1948.12	79.51	1.23	1.91
Experiment 2	AS-10	34	17	130	16:8	80	5	1973	2028	1133	39.9	1870.8	62.3	1.5	7.60	219.0	301.0	0.7	9.5			0.9	15	7.60	39.52	1117.43	1113.55	1875.01	58.47	0.90	1.40
Experiment 2	AS-11	34	17	130	16:8	80	5	1974	2018	1235	43.4	1873.2	57.4	1.4	7.57	253.0	294.0	0.9	9.5			0.9	15	7.56	43.20	1221.45	1217.20	1877.19	53.61	0.83	1.29
Experiment 2	AS-12	34	17	130	16:8	80	5	1976	2017	1265	44.5	1875.4	56.1	1.3	7.56	257.0	283.0	0.9	7.8			0.9	15	7.55	44.32	1252.99	1248.64	1879.30	52.38	0.81	1.26
Experiment 2	AS-13	34	17	130	16:8	80	5	2094	2108	1656	58.2	1987.6	48.1	1.1	7.47	196.0	288.0	0.7	3.4			0.6	15	7.46	58.34	1649.67	1643.94	1991.00	44.65	0.69	1.07
Experiment 2	AS-14	34	17	130	16:8	80	5	2102	2107	1781	62.6	1994.3	45.1	1.0	7.44	121.0	294.0	0.4	7.5			0.7	15	7.43	62.87	1777.76	1771.58	1997.42	41.70	0.65	1.00
Experiment 2	AS-15	34	17	130	16:8	80	5	2080	2083	1792	63.0	1973.1	43.8	1.0	7.43	149.0	287.0	0.5	7.1			0.6	15	7.42	63.33	1790.66	1784.43	1976.14	40.53	0.63	0.97