Biodiversity (2) Diatoms (2) Sources (2) Sources (2) Biodiversidad (2) Biodiversité (2) Sources (2) Biodiversité (2) Diatomées (2) source (2) Massif Central (2) Auvergne (1) France (1) Ecology (1) Development (1) Specimens (1) June (Month) (1) Wealth (1) Samples (Commerce) (1) Salinity (1) Saline waters (1) Rocks (1) Reason (1) Plants (1) Pitch (1) Pinnularia (1) Pebbles (1) Ocean (1) Navicula (1) Methane (1)