TaxonCodeEffectif
Achnanthidium pyrenaicum (Hustedt) Kobayasi ADPY 56
Nitzschia soratensis Morales & Vis NSTS 55
Nitzschia frustulum (Kützing) Grunow var.frustulum NIFR 38
Nitzschia fonticola Grunow in Van Heurck NFON 36
Navicula cryptotenella Lange-Bertalot NCTE 34
Melosira varians Agardh MVAR 33
Gomphonema minutum(Ag.)Agardh f. minutum GMIN 17
Reimeria sinuata (Gregory) Kociolek & Stoermer RSIN 16
Punctastriata lancettula (Schumann) Hamilton & Siver PULA 15
Rhoicosphenia abbreviata (C.Agardh) Lange-Bertalot RABB 14
Staurosira binodis Lange-Bertalot in Hofmann Werum & Lange-Bertalot SBND 14
Encyonema ventricosum (Agardh) Grunow in Schmidt & al. ENVE 12
Pseudostaurosira brevistriata (Grun.in Van Heurck) Williams & Round PSBR 12
Cocconeis euglypta Ehrenberg emend Romero & Jahn CEUG 10
Navicula tripunctata (O.F.Müller) Bory NTPT 9
Nitzschia dissipata (Kützing) Grunow ssp.dissipata NDIS 8
Craticula subminuscula CSNU 5
Diatoma vulgaris Bory DVUL 4
Gomphonema pumilum var. rigidum Reichardt & Lange-Bertalot GPRI 4
Navicula lanceolata (Agardh) Ehrenberg NLAN 4
Amphora pediculus (Kützing) Grunow APED 3
Achnanthidium eutrophilum (Lange-Bertalot)Lange-Bertalot ADEU 2
Achnanthidium rivulare Potapova &Ponader ADRI 2
Mayamaea permitis (Hustedt) Bruder & Medlin MPMI 1