Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Navicula bryophila Petersen Pechora River, Russia (PEC) 1.80 1.80 1.80
Nitzschia hantzschiana Rabenhorst Labrador, Canada (LAB) 1.80 1.80 1.80
Psammothidium rossii (Hustedt) Bukhtiyarova et Round Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 1.80 1.80 1.80
Pinnularia gibba Ehrenberg Pechora River, Russia (PEC) 1.79 1.79 1.79
Navicula cf. rhynchocephala DERMOT fo. elegans Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.77 1.93 2.09
Surirella turgida Smith Taimyr Peninsula, Russia (TAI) 1.77 1.77 1.77
Nitzschia dissipata (Kützing) Grunow Pechora River, Russia (PEC) 1.74 1.74 1.74
Achnanthes nitidiformis Lange-Bertalot Yellowknife area, Northwest Territories, Canada (YEL) 1.69 1.69 1.69
Navicula pupula var. pseudopupula Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.66 1.66 1.66
Nitzschia dissipata fo. undulata Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.66 1.66 1.66
Cymbopleura incerta var. spitsbergensis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.65 1.65 1.65
Navicula costulata Grunow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.63 1.63 1.63
Stauroneis cf. prominula SAL CDD Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 1.63 1.63 1.63
Eunotia diodon Ehrenberg Taimyr Peninsula, Russia (TAI) 1.60 1.60 1.60
Fragilaria sp. 10 QUEBEC CDD_FM Northern Quebec (QUE) 1.60 1.60 1.60
Fragilaria sp. 5 QUEBEC CDD_FM Northern Quebec (QUE) 1.60 1.60 1.60
Brachysira zellensis (Grunow) Round et Mann Pechora River, Russia (PEC) 1.59 1.59 1.59
Cyclotella bodanica var. lemanica (O. Müller ex Schroter) Bachmann 1903 Lena River, Russia (LEN) 1.59 1.59 1.59
Eunotia formica Ehrenberg Pechora River, Russia (PEC) 1.59 1.59 1.59
Eunotia serra Ehrenberg Pechora River, Russia (PEC) 1.59 1.59 1.59
Nitzschia flexa Schumann Taimyr Peninsula, Russia (TAI) 1.59 1.59 1.59
Aulacoseira lacustris (Grunow) Krammer Pechora River, Russia (PEC) 1.58 1.58 1.58
Cyclostephanos costatilimbus Stoermer, Håkansson et Theriot Lena River, Russia (LEN) 1.58 1.58 1.58
Navicula mutica Kützing Lena River, Russia (LEN) 1.56 1.56 1.56
Navicula gerloffii Schimanski 1978 Lena River, Russia (LEN) 1.55 1.55 1.55
Fragilaria pinnata Ehrenberg Taimyr Peninsula, Russia (TAI) 1.52 23.53 52.42
Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot Southampton Island, Nunavut, Canada (SI) 1.51 3.05 6.19
Achnanthes cf. marginulata PEC CDD Pechora River, Russia (PEC) 1.49 1.49 1.49
Aulacoseira lirata var. lacustris (Grunow) Ross Abisko, Sweden (ABK) 1.49 3.75 8.33
Cyclotella sp. 8 Siberia CDD_FM Taimyr Peninsula, Russia (TAI) 1.49 1.49 1.49
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