Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Achnanthes petersenii Hustedt 1936 Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.29 0.29
Achnanthes pusilla (Grunow) DeToni Taimyr Peninsula, Russia (TAI) 0.29 2.42 12.82
Achnanthes rossii Hustedt 1954 Taimyr Peninsula, Russia (TAI) 0.29 0.61 1.00
Achnanthes saccula Carter Taimyr Peninsula, Russia (TAI) 0.29 0.77 1.52
Achnanthes sp. impexiformis/impexa CDD_FM Taimyr Peninsula, Russia (TAI) 0.29 0.85 1.88
Achnanthes sp. impexiformis/impexa CDD_FM Pechora River, Russia (PEC) 0.29 0.85 2.91
Achnanthes sp. impexiformis/impexa CDD_FM Lena River, Russia (LEN) 0.29 0.75 2.17
Achnanthes sp. YEL Yellowknife area, Northwest Territories, Canada (YEL) 0.29 2.02 7.99
Achnanthes suchlandtii Hustedt Pechora River, Russia (PEC) 0.29 1.20 7.29
Achnanthes ventralis (Krasske) Lange-Bertalot Pechora River, Russia (PEC) 0.29 0.62 1.70
Amphora copulata (Kützing) Schoeman et Archibald Bylot Island, Nunavut, Canada. (BYL) 0.29 2.78 6.32
Amphora inariensis Krammer Taimyr Peninsula, Russia (TAI) 0.29 0.97 2.36
Amphora pediculus (Kützing) Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.77 1.69
Aulacoseira distans var. nivalis (Smith) Haworth Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.95 2.49
Aulacoseira sp. YEL Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.30 0.31
Aulacoseira subarctica (Müller) Haworth Taimyr Peninsula, Russia (TAI) 0.29 0.55 1.18
Caloneis cf. bacillum DERMOT Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.29 6.01 47.67
Caloneis fasciata Group 1 DERMOT Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.29 1.76 7.83
Caloneis silicula (Ehrenberg) Cleve Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.29 0.30
Cyclotella atomus Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.30 0.31
Cymbella hebridica Grunow ex Cleve Pechora River, Russia (PEC) 0.29 1.78 5.06
Cymbella incerta (Grunow) Cleve Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.65 1.27
Cymbella microcephala Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.29 1.13 3.17
Cymbella minuta Hilse ex Rabenhorst Lena River, Russia (LEN) 0.29 1.08 1.85
Denticula tenuis Kützing Lena River, Russia (LEN) 0.29 0.87 2.51
Diploneis marginestriata Hustedt Lena River, Russia (LEN) 0.29 0.57 1.23
Encyonema paucistratum Bylot Island, Nunavut, Canada. (BYL) 0.29 0.47 0.78
Eunotia bilunaris (Ehrenberg) Mills Pechora River, Russia (PEC) 0.29 2.11 10.32
Eunotia microcephala Krasske ex Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.29 0.29
Eunotia praerupta Ehrenberg Pechora River, Russia (PEC) 0.29 0.67 1.59
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