Chamaepinnularia salina (Bacillariophyta), a new diatom species from French mineral springs (Massif Central) Author Beauger, Aude 0000-0002-0911-0500 Université Clermont Auvergne, CNRS, GEOLAB, F- 63000 Clermont-Ferrand, France. & LTSER “ Zone Atelier Territoires Uranifères ”, 63000 Clermont-Ferrand, 63178 Aubière Cedex, France. & aude. beauger @ uca. fr; https: // orcid. org / 0000 - 0002 - 0911 - 0500 aude.beauger@uca.fr Author Wetzel, Carlos E. 0000-0001-5330-0494 Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & carlos. wetzel @ list. lu; https: // orcid. org / 0000 - 0001 - 5330 - 0494 carlos.wetzel@list.lu Author Allain, Elisabeth 0000-0002-6411-5873 Université Clermont Auvergne, CNRS, GEOLAB, F- 63000 Clermont-Ferrand, France. & elisabeth. allain @ uca. fr; https: // orcid. org / 0000 - 0002 - 6411 - 5873 elisabeth.allain@uca.fr Author Bertin, Clotilde 0000-0003-3617-817X BRGM, 12 avenue des Landais, 63170 Aubière, France. & c. bertin @ brgm. fr; https: // orcid. org / 0000 - 0003 - 3617 - 817 X c.bertin@brgm.fr Author Voldoire, Olivier 0000-0003-1306-3054 Université Clermont Auvergne, CNRS, GEOLAB, F- 63000 Clermont-Ferrand, France. & olivier. voldoire @ uca. fr; https: // orcid. org / 0000 - 0003 - 1306 - 3054 olivier.voldoire@uca.fr Author Breton, Vincent 0000-0001-8197-7080 LTSER “ Zone Atelier Territoires Uranifères ”, 63000 Clermont-Ferrand, 63178 Aubière Cedex, France. & Université Clermont Auvergne, CNRS / IN 2 P 3, Laboratoire de Physique de Clermont, UMR 6533, 4 avenue Blaise Pascal TSA 60026, CS 60026, 63178 Aubière cedex, France. & BRETON @ clermont. in 2 p 3. fr; https: // orcid. org / 0000 - 0001 - 8197 - 7080 Author Baker, Lory-Anne 0000-0002-8346-8578 LTSER “ Zone Atelier Territoires Uranifères ”, 63000 Clermont-Ferrand, 63178 Aubière Cedex, France. & Université Clermont Auvergne, Laboratoire « Microorganismes: Génome et Environnement » (LMGE), 63178 Aubière Cedex, France. & l-anne. baker @ etu. uca. fr; https: // orcid. org / 0000 - 0002 - 8346 - 8578 l-anne.baker@etu.uca.fr Author Kolovi, Sofia 0000-0003-4778-2823 LTSER “ Zone Atelier Territoires Uranifères ”, 63000 Clermont-Ferrand, 63178 Aubière Cedex, France. & Université Clermont Auvergne, CNRS / IN 2 P 3, Laboratoire de Physique de Clermont, UMR 6533, 4 avenue Blaise Pascal TSA 60026, CS 60026, 63178 Aubière cedex, France. & sofia. kolovi @ clermont. in 2 p 3. fr; https: // orcid. org / 0000 - 0003 - 4778 - 2823 Author Biron, David 0000-0002-6531-4647 LTSER “ Zone Atelier Territoires Uranifères ”, 63000 Clermont-Ferrand, 63178 Aubière Cedex, France. & Université Clermont Auvergne, Laboratoire « Microorganismes: Génome et Environnement » (LMGE), 63178 Aubière Cedex, France. & david. biron @ uca. fr; https: // orcid. org / 0000 - 0002 - 6531 - 4647 david.biron@uca.fr Author Ector, Luc 0000-0002-4573-9445 Luxembourg Institute of Science and Technology (LIST), Environmental Research and Innovation Department (ERIN), Observatory for Climate, Environment and Biodiversity (OCEB), 41 rue du Brill, 4422 Belvaux, Luxembourg. & luc. ector @ list. lu; https: // orcid. org / 0000 - 0002 - 4573 - 9445 luc.ector@list.lu text Phytotaxa 2022 2022-03-03 538 1 55 73 journal article 20294 10.11646/phytotaxa.538.1.5 a0b7fa39-8ca6-42ce-a70f-c48ff3ff25b3 1179-3163 6332002

TABLE 1. Physical variables and chemical variables measured in the spring (below detection limit: Bdl).

	Sail spring			Camuse spring
Date	20/12/2014	23/11/2018	15/10/2019	26/09/2017
Conductivity (µS cm-1)	7140	7670	5390	4290
pH (pH units)	6.8	6.8	7.0	6.5
Temperature (°C)	12.9	10.3	16.6	15.8
Dissolved oxygen (%)	36.9	31.7	9.2	31.8
Li+ (mg L-1)	7.1	7.8	3.5	4.5
Na+ (mg L-1)	1323.3	1426.9	686.6	1006.8
NH + (mg L-1) 4	1.8	0.4	0.7	0.2
K+ (mg L-1)	155.2	164.1	83.5	72.1
Mg2+ (mg L-1)	124.6	131.1	52.8	29.9
Ca2+ (mg L-1)	273.9	171.2	85.7	53.6
F- (mg L-1)	0.6	0.6	0.5	2.4
Cl- (mg L-1)	1326.4	1349.3	671.6	79.9
NO - (mg L-1) 3	4.1	1.9	8.9	1.3
NO - (mg L-1) 2	0.01	0.05	0.61	Bdl
Br- (mg L-1)	3.1	3.1	1.1	Bdl
PO 3- (mg L-1) 4	0.1	0.3	0.5	0.1
HCO3- (mg L-1)	2480	2530	1150	2510
SO 2- (mg L-1) 4	94.6	101.2	51.8	51.5