Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Cymbella sp. 1 DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.49 1.69 1.89
Navicula mediocris Krasske Taimyr Peninsula, Russia (TAI) 1.49 1.49 1.49
Navicula sp. menisculus/cryptotenella TAI Taimyr Peninsula, Russia (TAI) 1.49 1.49 1.49
Navicula ignota var. palustris (Hustedt) Lund Yellowknife area, Northwest Territories, Canada (YEL) 1.48 1.48 1.48
Navicula rhynchocephala Kützing Pechora River, Russia (PEC) 1.48 1.48 1.48
Eunotia hexaglyphis Ehrenberg Pechora River, Russia (PEC) 1.47 1.47 1.47
Navicula sp. 5 DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.46 1.46 1.46
Diadesmis ingeaeformis Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 1.44 4.62 7.79
Navicula medioconvexa Hustedt Pechora River, Russia (PEC) 1.44 1.44 1.44
Aulacoseira sp. 3 QUEBEC CDD_FM Northern Quebec (QUE) 1.40 1.40 1.40
Fragilaria sp. 9 QUEBEC CDD_FM Northern Quebec (QUE) 1.40 1.40 1.40
Nitzschia ovalis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.40 1.40 1.40
Cyclotella aff. comensis SI-CDD Grunow in van Heurck 1882 Southampton Island, Nunavut, Canada (SI) 1.38 1.38 1.38
Navicula cf. gastrum SWE CDD (Ehrenberg) Kützing 1844 Northern Sweden (SWE) 1.37 1.37 1.37
Amphora oligotraphenta Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.34 1.34 1.34
Geissleria similis Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 1.34 1.34 1.34
Caloneis falcifera Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.32 1.32 1.32
Cymbella gracilis (Ehrenberg) Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.32 1.40 1.48
Fallacia subhamulata (Grunow) Mann Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.32 1.32 1.32
Caloneis bacillum var. lancettula Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.31 1.31 1.31
Navicula indifferens Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.31 1.31 1.31
Frustulia rhomboides var. saxonica (Rabenhorst) De Toni 1891 Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 1.30 2.64 5.52
Eunotia rostellata Hustedt ex Patrick Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 1.29 1.29 1.29
Meridion circulare (Greville) Agardh Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 1.29 1.80 2.30
Caloneis cf. silicula DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.28 1.28 1.28
Navicula crucicula var. alaskana Lena River, Russia (LEN) 1.27 1.27 1.27
Navicula menisculus Schumann Taimyr Peninsula, Russia (TAI) 1.27 1.27 1.27
Diatoma moniliformis Kützing Lena River, Russia (LEN) 1.26 1.26 1.26
Fragilaria capucina Desmazières Pechora River, Russia (PEC) 1.26 1.26 1.26
Pseudogomphonema septentrionale Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.26 1.26 1.26
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