Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Nitzschia commutata Grunow Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.58 1.70 5.17
Aneumastus tusculus Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.35 1.58 5.16
Eunotia exigua (Brébisson ex Kützing) Rabenhorst Northern Sweden (SWE) 0.19 1.33 5.16
Navicula cf. hoefleri [hoefleri sensu Ross & Sims] DIAT_UME Sensu Ross et Sims Northern Sweden (SWE) 0.18 1.49 5.16
Navicula sp. [cf. Microcostatus egregius] DERMOT Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.19 1.56 5.13
Sellaphora pseudonana Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.36 1.72 5.12
Gomphonema parvulum (Kützing) Kützing Lena River, Russia (LEN) 0.31 1.28 5.11
Aulacoseira perglabra (Østrup) Haworth Northern Sweden (SWE) 0.18 1.40 5.08
Tabellaria flocculosa (Roth) Kützing Northern Sweden (SWE) 0.15 0.82 5.07
Cymbella hebridica Grunow ex Cleve Pechora River, Russia (PEC) 0.29 1.78 5.06
Navicula indifferens Hustedt Northern Sweden (SWE) 0.18 1.44 5.04
Fragilaria construens SWEDEN var. venter fo. long Northern Sweden (SWE) 0.28 3.02 5.03
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 2.09 5.02
Cyclotella tripartita Håkansson Taimyr Peninsula, Russia (TAI) 0.60 2.09 5.01
Achnanthes biasolettiana var. subatomus Lange-Bertalot Northern Quebec (QUE) 0.20 1.67 5.00
Achnanthes ingratiformis Lange-Bertalot Bylot Island, Nunavut, Canada. (BYL) 0.19 1.48 5.00
Fragilaria nanana Lange-Bertalot Taimyr Peninsula, Russia (TAI) 0.30 1.38 5.00
Navicula pupula Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 1.17 5.00
Nupela devilensis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.71 2.28 5.00
Cyclotella comta (Ehrenberg) Kützing Abisko, Sweden (ABK) 0.24 1.67 4.99
Navicula schmassmannii Hustedt 1943 Abisko, Sweden (ABK) 0.23 1.23 4.99
Fragilaria brevistriata var. papillosa Cleve-Euler Southampton Island, Nunavut, Canada (SI) 0.58 3.31 4.98
Navicula subtilissima Cleve Northern Sweden (SWE) 0.19 1.24 4.97
Nitzschia dissipata var. dissipata (Kützing) Grunow 1862 Abisko, Sweden (ABK) 0.23 0.85 4.95
Anomoeoneis brachysira (Brébisson) Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.80 4.94
Navicula menisculus Schumann Lena River, Russia (LEN) 0.31 2.17 4.94
Cymbella microcephala Grunow Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.31 1.08 4.93
Stephanodiscus alpinus Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 2.43 4.93
Brachysira cf. procera CDD_FM Lange-Bertalot et Moser 1994 Northern Quebec (QUE) 0.20 0.87 4.90
Eunotia exigua (Brébisson ex Kützing) Rabenhorst Abisko, Sweden (ABK) 0.23 1.05 4.90
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