TaxonCodeEffectif
Navicula gregaria Donkin NGRE 77
Navicula lanceolata (Agardh) Ehrenberg NLAN 50
Fragilaria vaucheriae (Kützing) Petersen FVAU 33
Nitzschia tubicola Grunow NTUB 18
Fragilaria capucina Desmazieres var.capucina FCAP 14
Navicula tripunctata (O.F.Müller) Bory NTPT 14
Meridion circulare (Greville) C.A.Agardh var. circulare MCIR 13
Planothidium frequentissimum(Lange-Bertalot)Lange-Bertalot PLFR 13
Gomphonema lagenula Kützing GLGN 12
Gomphonema parvulum (Kützing) Kützing var. parvulum f. parvulum GPAR 12
Ulnaria ulna (Nitzsch.) Compère UULN 12
Craticula subminuscula CSNU 11
Nitzschia sociabilis Hustedt NSOC 9
Nitzschia soratensis Morales & Vis NSTS 9
Nitzschia dissipata (Kützing) Grunow ssp.dissipata NDIS 8
Nitzschia palea (Kützing) W.Smith var. palea NPAL 8
Stephanodiscus vestibulis Hakansson Theriot & Stoermer SVES 8
Rhoicosphenia abbreviata (C.Agardh) Lange-Bertalot RABB 7
Amphora pediculus (Kützing) Grunow APED 5
Fragilaria rumpens (Kütz.) G.W.F.Carlson FRUM 5
Geissleria acceptata (Hust.) Lange-Bertalot & Metzeltin GACC 5
Mayamaea permitis (Hustedt) Bruder & Medlin MPMI 5
Melosira varians Agardh MVAR 5
Planothidium lanceolatum(Brebisson ex Kützing) Lange-Bertalot PTLA 5
Cocconeis euglypta Ehrenberg emend Romero & Jahn CEUG 4
Fragilaria pararumpens Lange-Bertalot, Hofmann & Werum in Hofmann & al. FPRU 4
Nitzschia capitellata Hustedt in A.Schmidt & al. NCPL 4
Reimeria sinuata (Gregory) Kociolek & Stoermer RSIN 4
Nitzschia linearis(Agardh) W.M.Smith var.linearis NLIN 3
Achnanthidium minutissimum (Kützing) Czarnecki ADMI 2
Cyclostephanos dubius (Fricke) Round CDUB 2
Encyonema ventricosum (Agardh) Grunow in Schmidt & al. ENVE 2
Humidophila perpusilla HPEP 2
Humidophila contenta HUCO 2
Navicula amphiceropsis Lange-Bertalot & Rumrich NAAM 2
Nitzschia palea (Kützing) W.Smith var.debilis(Kützing)Grunow in Cl. & Grun NPAD 2
Nitzschia puriformis Hlubikova et Ector NPUF 2
Navicula veneta Kützing NVEN 2
Sellaphora nigri SNIG 2
Adlafia minuscula (Grunow) Lange-Bertalot ADMS 1
Cyclotella meneghiniana Kützing CMEN 1
Fistulifera saprophila (Lange-Bertalot & Bonik) Lange-Bertalot FSAP 1
Nitzschia recta Hantzsch in Rabenhorst NREC 1
Stephanodiscus hantzschii Grunow in Cleve & Grunow SHAN 1
Surirella lacrimula English SLAC 1