Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Nitzschia fonticola Grunow Yellowknife area, Northwest Territories, Canada (YEL) 1.13 2.96 7.85
Pinnularia decrescens var. ignorata Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.12 1.12 1.12
Aulacoseira lirata (Ehrenberg) Ross Pechora River, Russia (PEC) 1.10 1.10 1.10
Eunotia praerupta Ehrenberg Bylot Island, Nunavut, Canada. (BYL) 1.10 7.49 13.00
Nitzschia homburgiensis Lange-Bertalot 1978 Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 1.09 1.12 1.15
Amphora pediculus (Kützing) Grunow Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 1.08 1.08 1.08
Fragilaria virescens var. exigua Grunow Pechora River, Russia (PEC) 1.08 9.94 40.44
Navicula difficillima Hustedt Lena River, Russia (LEN) 1.07 1.07 1.07
Oestrupia zachariasi (Reichelt) Hustedt 1950 Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.06 1.06 1.06
Navicula pseudoventralis Hustedt Northern Sweden (SWE) 1.03 1.03 1.03
Pinnularia balfouriana Grunow ex Cleve Pechora River, Russia (PEC) 1.03 1.03 1.03
Brachysira follis (Ehrenberg) R. Ross in Hartley 1986 Northern Quebec (QUE) 1.00 1.00 1.00
Cyclotella michiganiana Skvortzow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.00 1.00 1.00
Diploneis ovalis (Hilse ex Rabenhorst) Cleve Abisko, Sweden (ABK) 1.00 1.00 1.00
Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot Northern Quebec (QUE) 1.00 1.40 1.60
Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot Bylot Island, Nunavut, Canada. (BYL) 1.00 3.52 7.00
Frustulia cf. magaliesmontana CDD_FM Cholnoky 1957 Northern Quebec (QUE) 1.00 1.00 1.00
Navicula jaernefeltii Hustedt 1942 Labrador, Canada (LAB) 1.00 1.00 1.00
Nitzschia cf. agnita YUK CDD Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.00 1.00 1.00
Nitzschia sinuata (Thwaites) Grunow Bylot Island, Nunavut, Canada. (BYL) 1.00 1.83 3.00
Meridion circulare (Greville) Agardh Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.99 0.99 0.99
Pinnularia microstauron var. brebissonii (Kützing) Mayer Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.99 0.99 0.99
Navicula farta Hustedt Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.98 0.98 0.98
Navicula molestiformis Hustedt Abisko, Sweden (ABK) 0.98 0.98 0.98
Navicula pseudoventralis Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.98 0.98 0.98
Tabellaria binalis var. binalis (Ehrenberg) Grunow in Van Heurck 1881 Abisko, Sweden (ABK) 0.98 1.36 1.74
Achnanthes lanceolata var. frequentissima Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.97 0.97 0.97
Amphora pediculus (Kützing) Grunow Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.97 0.97 0.97
Eunotia sp. 1 EMILIE Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.97 0.97 0.97
Navicula cf. oppugnata YUK CDD Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.97 5.17 8.94
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