Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Aulacoseira perglabra var. florinae (Camburn) Haworth 1990 Labrador, Canada (LAB) 0.20 3.32 12.90
Nitzschia gracilis Hantzsch ex Rabenhorst Abisko, Sweden (ABK) 0.22 1.03 12.87
Navicula phylleptosoma Lange-Bertalot Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 2.87 12.84
Achnanthes pusilla (Grunow) DeToni Taimyr Peninsula, Russia (TAI) 0.29 2.42 12.82
Navicula vitiosa Schimanski Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.30 2.29 12.75
Cymbella naviculiformis Auerswald ex Héribaud Northern Sweden (SWE) 0.18 2.53 12.72
Eunotia curvata (Kützing) Lagerstedt Abisko, Sweden (ABK) 0.22 1.13 12.62
Fragilaria construens var. venter (Ehrenberg) Grunow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 3.14 12.62
Asterionella formosa Hassal Northern Quebec (QUE) 0.20 2.58 12.60
Pinnularia subgibba Krammer Bylot Island, Nunavut, Canada. (BYL) 0.19 2.40 12.60
Eunotia incisa Smith ex Gregory Northern Sweden (SWE) 0.16 1.88 12.58
Eucocconeis laevis (Østrup) Lange-Bertalot Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 2.84 12.57
Diadesmis gallica Smith Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.33 4.66 12.55
Aulacoseira lirata (Ehrenberg) Ross Labrador, Canada (LAB) 0.20 2.82 12.50
Encyonopsis sp. [cf. Navicula soehrensis] DERMOT Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 4.18 12.40
Berkeleya rutilans (Trentepohl) Grunow Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.78 3.70 12.34
Navicula seminulum Grunow Pechora River, Russia (PEC) 0.57 4.33 12.31
Navicula oblonga Østrup Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 3.63 12.25
Fragilaria tenera (Smith) Lange-Bertalot Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.47 2.47 12.19
Encyonopsis cf. microcephala DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.16 2.16 12.17
Aulacoseira distans var. tenella (Nygaard) Ross Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 3.90 12.09
Pinnularia intermedia (Lagerstedt) Cleve Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.38 2.23 12.06
Navicula pseudotenelloides Krasske Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.34 4.37 12.03
Achnanthes marginulata Grunow Northern Sweden (SWE) 0.15 1.37 12.00
Fragilaria pinnata var. intercedens (Grunow) Hustedt Northern Quebec (QUE) 0.20 2.03 12.00
Navicula sp. YEL Yellowknife area, Northwest Territories, Canada (YEL) 0.29 3.24 11.97
Encyonopsis cesatii (Rabhenhorst) Krammer Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.38 4.19 11.86
Fragilaria construens (Ehrenberg) Grunow 1862 Labrador, Canada (LAB) 0.20 2.45 11.80
Eunotia vanheurckii Patrick Abisko, Sweden (ABK) 0.24 1.95 11.76
Fragilaria brevistriata var. papillosa Cleve-Euler Lena River, Russia (LEN) 0.32 2.96 11.64
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