Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Navicula pseudoventralis Hustedt Labrador, Canada (LAB) 0.40 1.00 1.60
Nitzschia cf. agnita YUK CDD Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.00 1.00 1.00
Pinnularia gibbiformis Krammer 1992 Northern Quebec (QUE) 0.80 1.00 1.20
Psammothidium chlidanos (Hohn et Hellerman) Lange-Bertalot Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.19 1.00 2.57
Achnanthes laterostrata Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.99 3.38
Achnanthes laterostrata Hustedt Taimyr Peninsula, Russia (TAI) 0.32 0.99 2.03
Cymbella angustata (Smith) Cleve Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.99 2.64
Cymbella perpusilla Cleve Abisko, Sweden (ABK) 0.20 0.99 6.45
Fragilaria crotonensis Kitton Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.66 0.99 1.32
Fragilaria pinnata var. intercedens (Grunow) Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.31 0.99 5.19
Meridion circulare (Greville) Agardh Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.99 0.99 0.99
Navicula digitulus Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.99 2.33
Navicula disjuncta Hustedt Abisko, Sweden (ABK) 0.25 0.99 2.12
Navicula hassiaca Krasske Northern Sweden (SWE) 0.18 0.99 6.04
Navicula pseudotuscula Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.99 1.66
Navicula radiosa Kützing Northern Sweden (SWE) 0.18 0.99 4.21
Navicula vitiosa Schimanski Northern Quebec (QUE) 0.20 0.99 4.40
Pinnularia mesolepta CDD_FM morphotype III (Ehrenberg) W. Smith 1853 sensu Krammer 1992 Northern Quebec (QUE) 0.20 0.99 3.60
Pinnularia microstauron var. brebissonii (Kützing) Mayer Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.99 0.99 0.99
Fragilaria capucina var. gracilis (Østrup) Hustedt Northern Sweden (SWE) 0.18 0.98 4.30
Frustulia rhomboides var. saxonica (Rabenhorst) deToni Northern Quebec (QUE) 0.20 0.98 3.20
Navicula digitulus Hustedt Taimyr Peninsula, Russia (TAI) 0.63 0.98 1.94
Navicula farta Hustedt Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.98 0.98 0.98
Navicula mediocris Krasske Pechora River, Russia (PEC) 0.30 0.98 1.59
Navicula molestiformis Hustedt Abisko, Sweden (ABK) 0.98 0.98 0.98
Navicula pseudoscutiformis Hustedt Abisko, Sweden (ABK) 0.21 0.98 10.42
Navicula pseudoventralis Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.98 0.98 0.98
Nitzschia alpina Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.28 0.98 4.52
Achnanthes lanceolata var. frequentissima Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.97 0.97 0.97
Amphora inariensis Krammer Taimyr Peninsula, Russia (TAI) 0.29 0.97 2.36
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