Citation:

PANGAEA.995743 (DOI registration in progress)

Name: Seawater carbonate chemistry and physiological data of the diatom Thalassiosira weissflogii employed in studying the diel effects of ocean acidification
Published: 2026-07-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bottles or small containers/Aquaria (<20 L); Chromista; Gene expression (incl. proteomics); Growth/Morphology; Heterokontophyta; Laboratory experiment; Laboratory strains; Light; Not applicable; Ocean acidification; Pelagos; Phytoplankton; Primary production/Photosynthesis; Respiration; Single species; Thalassiosira weissflogii

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Published: 2026-07-01

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Abstract:

We comparatively investigated the physiological and transcriptional performances of a diatom Thalassiosira weissflogii acclimated to OA (pHt drop of 0.35–0.41) between day and night periods.

This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were provided by the author of the related paper (see Related to) to the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) 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 2026-07-01.

Keyword(s):

Bottles or small containers/Aquaria (<20 L); Chromista; Gene expression (incl. proteomics); Growth/Morphology; Heterokontophyta; Laboratory experiment; Laboratory strains; Light; Not applicable; Ocean acidification; Pelagos; Phytoplankton; Primary production/Photosynthesis; Respiration; Single species; Thalassiosira weissflogii

Related to:

Gao, Guang; Qu, Liming; Ge, Jingke; Gao, Kunshan (2026): Divergent responses of the diatom Thalassiosira weissflogii to ocean acidification during light and dark periods. Limnology and Oceanography Letters, 11(3), e70128, https://doi.org/10.1002/lol2.70128

Source:

Gao, Guang; Qu, Liming; Ge, Jingke; Gao, Kunshan (2026): Diel effects of ocean acidification on diatom [dataset]. Mendeley Data, https://doi.org/10.17632/CJWPPWD3M5.1

References:

Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010

Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024

Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016

Related code / software:

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type of study	Study type		Gao, Guang
2	Species, unique identification	Species UID		Gao, Guang
3	Treatment	Treat		Gao, Guang		AC=ambient, HC=high CO2
4	Growth rate	µ	1/h	Gao, Guang		per 12 h, dark period
5	Growth rate	µ	1/h	Gao, Guang		per 12 h, light period
6	Growth rate	µ	1/day	Gao, Guang
7	Respiration rate, oxygen, per cell	Resp O2/cell	fmol/#/h	Gao, Guang		Dark period
8	Respiration rate, oxygen, per cell	Resp O2/cell	fmol/#/h	Gao, Guang		Light period
9	Net photosynthesis rate, oxygen, per cell	PN O2/cell	fmol/#/h	Gao, Guang
10	Gross photosynthesis rate, oxygen, per cell	PG O2/cell	pmol/#/h	Gao, Guang
11	Gene abundance	GA	#	Gao, Guang		upregulated differential expression genes (DEGs)
12	Gene abundance	GA	#	Gao, Guang		downregulated differential expression genes (DEGs)
13	pH, total scale	pHT		Gao, Guang		light
14	Alkalinity, total	AT	µmol/kg	Gao, Guang		light
15	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Gao, Guang	Calculated using CO2SYS	light
16	Carbon, inorganic, dissolved	DIC	µmol/kg	Gao, Guang	Calculated using CO2SYS	light
17	Bicarbonate ion	[HCO3]-	µmol/kg	Gao, Guang	Calculated using CO2SYS	light
18	Carbonate ion	[CO3]2-	µmol/kg	Gao, Guang	Calculated using CO2SYS	light
19	Carbon dioxide	CO2	µmol/kg	Gao, Guang	Calculated using CO2SYS	light
20	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
21	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
22	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)	light
23	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)	light
24	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
25	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
26	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
27	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
28	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	light
29	pH, total scale	pHT		Gao, Guang		dark
30	Alkalinity, total	AT	µmol/kg	Gao, Guang		dark
31	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Gao, Guang	Calculated using CO2SYS	dark
32	Carbon, inorganic, dissolved	DIC	µmol/kg	Gao, Guang	Calculated using CO2SYS	dark
33	Bicarbonate ion	[HCO3]-	µmol/kg	Gao, Guang	Calculated using CO2SYS	dark
34	Carbonate ion	[CO3]2-	µmol/kg	Gao, Guang	Calculated using CO2SYS	dark
35	Carbon dioxide	CO2	µmol/kg	Gao, Guang	Calculated using CO2SYS	dark
36	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark
37	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark
38	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)	dark
39	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)	dark
40	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark
41	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark
42	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark
43	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark
44	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	dark

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

487 data points

Data

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

1 Study type	2 Species UID	3 Treat (AC=ambient, HC=high CO2)	4 µ [1/h] (per 12 h, dark period)	5 µ [1/h] (per 12 h, light period)	6 µ [1/day]	7 Resp O2/cell [fmol/#/h] (Dark period)	8 Resp O2/cell [fmol/#/h] (Light period)	9 PN O2/cell [fmol/#/h]	10 PG O2/cell [pmol/#/h]	11 GA [#] (upregulated differential expr...)	12 GA [#] (downregulated differential ex...)	13 pHT (light)	14 AT [µmol/kg] (light)	15 pCO2water_SST_wet [µatm] (light, Calculated using CO2SYS)	16 DIC [µmol/kg] (light, Calculated using CO2SYS)	17 [HCO3]- [µmol/kg] (light, Calculated using CO2SYS)	18 [CO3]2- [µmol/kg] (light, Calculated using CO2SYS)	19 CO2 [µmol/kg] (light, Calculated using CO2SYS)	20 CSC flag (light, Calculated using seaca...)	21 CO2 [µmol/kg] (light, Calculated using seaca...)	22 fCO2water_SST_wet [µatm] (light, Calculated using seaca...)	23 pCO2water_SST_wet [µatm] (light, Calculated using seaca...)	24 [HCO3]- [µmol/kg] (light, Calculated using seaca...)	25 [CO3]2- [µmol/kg] (light, Calculated using seaca...)	26 DIC [µmol/kg] (light, Calculated using seaca...)	27 Omega Arg (light, Calculated using seaca...)	28 Omega Cal (light, Calculated using seaca...)	29 pHT (dark)	30 AT [µmol/kg] (dark)	31 pCO2water_SST_wet [µatm] (dark, Calculated using CO2SYS)	32 DIC [µmol/kg] (dark, Calculated using CO2SYS)	33 [HCO3]- [µmol/kg] (dark, Calculated using CO2SYS)	34 [CO3]2- [µmol/kg] (dark, Calculated using CO2SYS)	35 CO2 [µmol/kg] (dark, Calculated using CO2SYS)	36 CSC flag (dark, Calculated using seacar...)	37 CO2 [µmol/kg] (dark, Calculated using seacar...)	38 fCO2water_SST_wet [µatm] (dark, Calculated using seacar...)	39 pCO2water_SST_wet [µatm] (dark, Calculated using seacar...)	40 [HCO3]- [µmol/kg] (dark, Calculated using seacar...)	41 [CO3]2- [µmol/kg] (dark, Calculated using seacar...)	42 DIC [µmol/kg] (dark, Calculated using seacar...)	43 Omega Arg (dark, Calculated using seacar...)	44 Omega Cal (dark, Calculated using seacar...)
laboratory	Thalassiosira weissflogii	AC-1	0.462210898	0.579	1.041210898							8.16	2283.28	290.39	1952.96	1725.71	217.82	9.43	8	9.52	292.04	293.03	1741.76	219.89	1971.16	3.44	5.30	8.04	2274.55	398.21	2010.20	1820.59	176.67	12.93	8	13.04	400.06	401.42	1835.68	178.17	2026.89	2.79	4.29
laboratory	Thalassiosira weissflogii	AC-2	0.466242666	0.614	1.080242666							8.16	2283.28	290.39	1952.96	1725.71	217.82	9.43	8	9.52	292.04	293.03	1741.76	219.89	1971.16	3.44	5.30	8.04	2274.55	398.21	2010.20	1820.59	176.67	12.93	8	13.04	400.06	401.42	1835.68	178.17	2026.89	2.79	4.29
laboratory	Thalassiosira weissflogii	AC-3	0.491104678	0.585	1.076104678							8.16	2283.28	290.39	1952.96	1725.71	217.82	9.43	8	9.52	292.04	293.03	1741.76	219.89	1971.16	3.44	5.30	8.04	2274.55	398.21	2010.20	1820.59	176.67	12.93	8	13.04	400.06	401.42	1835.68	178.17	2026.89	2.79	4.29
laboratory	Thalassiosira weissflogii	HC-1	0.428036783	0.677	1.105036783							7.80	2295.88	761.68	2142.18	2005.37	112.07	24.73	8	24.91	764.62	767.22	2018.84	112.76	2156.51	1.76	2.72	7.64	2294.91	1165.70	2203.82	2086.66	79.31	37.85	8	38.08	1168.82	1172.80	2098.98	79.76	2216.82	1.25	1.92
laboratory	Thalassiosira weissflogii	HC-2	0.376298215	0.627	1.003298215							7.80	2295.88	761.68	2142.18	2005.37	112.07	24.73	8	24.91	764.62	767.22	2018.84	112.76	2156.51	1.76	2.72	7.64	2294.91	1165.70	2203.82	2086.66	79.31	37.85	8	38.08	1168.82	1172.80	2098.98	79.76	2216.82	1.25	1.92
laboratory	Thalassiosira weissflogii	HC-3	0.418036783	0.647	1.065036783							7.80	2295.88	761.68	2142.18	2005.37	112.07	24.73	8	24.91	764.62	767.22	2018.84	112.76	2156.51	1.76	2.72	7.64	2294.91	1165.70	2203.82	2086.66	79.31	37.85	8	38.08	1168.82	1172.80	2098.98	79.76	2216.82	1.25	1.92
laboratory	Thalassiosira weissflogii	AC-1				140.6211947	176.3	1623.3	1.7996			8.16	2283.28	290.39	1952.96	1725.71	217.82	9.43	8	9.52	292.04	293.03	1741.76	219.89	1971.16	3.44	5.30	8.04	2274.55	398.21	2010.20	1820.59	176.67	12.93	8	13.04	400.06	401.42	1835.68	178.17	2026.89	2.79	4.29
laboratory	Thalassiosira weissflogii	AC-2				130.6748887	165.2	1722.6	1.8878			8.16	2283.28	290.39	1952.96	1725.71	217.82	9.43	8	9.52	292.04	293.03	1741.76	219.89	1971.16	3.44	5.30	8.04	2274.55	398.21	2010.20	1820.59	176.67	12.93	8	13.04	400.06	401.42	1835.68	178.17	2026.89	2.79	4.29
laboratory	Thalassiosira weissflogii	AC-3				127.1294543	180.2	1658.3	1.8385			8.16	2283.28	290.39	1952.96	1725.71	217.82	9.43	8	9.52	292.04	293.03	1741.76	219.89	1971.16	3.44	5.30	8.04	2274.55	398.21	2010.20	1820.59	176.67	12.93	8	13.04	400.06	401.42	1835.68	178.17	2026.89	2.79	4.29
laboratory	Thalassiosira weissflogii	HC-1				151.5198330	196.1	1902.3	2.0984			7.80	2295.88	761.68	2142.18	2005.37	112.07	24.73	8	24.91	764.62	767.22	2018.84	112.76	2156.51	1.76	2.72	7.64	2294.91	1165.70	2203.82	2086.66	79.31	37.85	8	38.08	1168.82	1172.80	2098.98	79.76	2216.82	1.25	1.92
laboratory	Thalassiosira weissflogii	HC-2				147.7447277	197.8	1821.3	2.0191			7.80	2295.88	761.68	2142.18	2005.37	112.07	24.73	8	24.91	764.62	767.22	2018.84	112.76	2156.51	1.76	2.72	7.64	2294.91	1165.70	2203.82	2086.66	79.31	37.85	8	38.08	1168.82	1172.80	2098.98	79.76	2216.82	1.25	1.92
laboratory	Thalassiosira weissflogii	HC-3				155.4225085	180.3	1756.6	1.9369			7.80	2295.88	761.68	2142.18	2005.37	112.07	24.73	8	24.91	764.62	767.22	2018.84	112.76	2156.51	1.76	2.72	7.64	2294.91	1165.70	2203.82	2086.66	79.31	37.85	8	38.08	1168.82	1172.80	2098.98	79.76	2216.82	1.25	1.92
laboratory	Thalassiosira weissflogii	HC-L vs AC-L								4074	2871
laboratory	Thalassiosira weissflogii	HC-D vs AC-D								1908	1907
laboratory	Thalassiosira weissflogii	AC-L vs AC-D								20470	13390
laboratory	Thalassiosira weissflogii	HC-L vs HC-D								21042	10239
laboratory	Thalassiosira weissflogii	HC-L vs AC-D								18055	12575