TaxonCodeEffectif
Rhoicosphenia abbreviata (C.Agardh) Lange-Bertalot RABB 229
Navicula tripunctata (O.F.Müller) Bory NTPT 27
Amphora pediculus (Kützing) Grunow APED 25
Nitzschia dissipata (Kützing) Grunow ssp.dissipata NDIS 18
Melosira varians Agardh MVAR 13
Gomphonema bourbonense E. Reichardt et Lange-Bertalot GBOB 11
Navicula cryptotenella Lange-Bertalot NCTE 11
Caloneis lancettula (Schulz) Lange-Bertalot & Witkowski CLCT 10
Navicula gregaria Donkin NGRE 8
Gomphonema pumilum var. rigidum Reichardt & Lange-Bertalot GPRI 6
Planothidium frequentissimum(Lange-Bertalot)Lange-Bertalot PLFR 4
Sellaphora nigri SNIG 4
Tryblionella angustatula TATU 4
Cocconeis euglypta Ehrenberg emend Romero & Jahn CEUG 3
Gomphonema parvulum (Kützing) Kützing var. parvulum f. parvulum GPAR 3
Navicula lanceolata (Agardh) Ehrenberg NLAN 3
Achnanthidium eutrophilum (Lange-Bertalot)Lange-Bertalot ADEU 2
Amphora indistincta Levkov AMID 2
Amphora ovalis (Kützing) Kützing var.ovalis AOVA 2
Encyonema ventricosum (Agardh) Grunow in Schmidt & al. ENVE 2
Fallacia subhamulata (Grunow in V. Heurck) D.G. Mann FSBH 2
Gomphonema olivaceum (Hornemann) Brébisson var. olivaceum GOLI 2
Navigeia decussis NGDU 2
Nitzschia archibaldii Lange-Bertalot NIAR 2
Nitzschia palea (Kützing) W.Smith var. palea NPAL 2
Navicula slesvicensis Grunow NSLE 2
Nitzschia sociabilis Hustedt NSOC 2
Gomphonema hebridense Gregory GHEB 1