Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Navicula vitiosa Schimanski Labrador, Canada (LAB) 0.20 2.94 8.80
Pinnularia balfouriana Grunow ex Cleve Lena River, Russia (LEN) 0.29 2.94 7.21
Caloneis fusus Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.32 2.92 13.56
Tabellaria flocculosa (Roth) Kützing Northern Quebec (QUE) 0.20 2.92 23.70
Undetermined diatom [CDD] Northern Sweden (SWE) 0.19 2.91 11.24
Cocconeis placentula var. euglypta (Ehrenberg) Grunow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 2.90 18.21
Nitzschia valdestriata Aleem et Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 2.90 11.46
Psammothidium helveticum (Hustedt) Bukhtiyarova et Round Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.33 2.89 11.51
Achnanthes subatomoides (Hustedt) Lange-Bertalot et Archibald Lena River, Russia (LEN) 0.31 2.88 11.62
Cyclotella stelligera (Cleve et Grunow) Van Heurck Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 2.88 2.88 2.88
Gomphonema spp. DERMOT Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 2.88 2.88 2.88
Navicula phylleptosoma Lange-Bertalot Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 2.87 12.84
Cymbella designata Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 2.86 8.78
Brachysira cf. procera CDD_FM Lange-Bertalot et Moser 1994 Southampton Island, Nunavut, Canada (SI) 0.20 2.84 6.94
Eucocconeis laevis (Østrup) Lange-Bertalot Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 2.84 12.57
Fragilaria pinnata var. intercedens (Grunow) Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 2.83 13.53
Nitzschia clausii Hantzsch Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 2.83 10.31
Aulacoseira lirata (Ehrenberg) Ross Labrador, Canada (LAB) 0.20 2.82 12.50
Achnanthes suchlandtii Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.28 2.81 10.14
Aulacoseira distans var. tenella (Nygaard) Ross Labrador, Canada (LAB) 0.20 2.81 10.10
Adlafia bryophila (Petersen) Lange-Bertalot Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.36 2.79 9.43
Aulacoseira distans var. humilis (A. Cleve-Euler) R. Ross in Hartley 1986 Abisko, Sweden (ABK) 0.25 2.79 7.59
Navicula seminulum Grunow Labrador, Canada (LAB) 0.60 2.79 6.60
Amphora copulata (Kützing) Schoeman et Archibald Bylot Island, Nunavut, Canada. (BYL) 0.29 2.78 6.32
Fragilaria brevistriata Grunow Taimyr Peninsula, Russia (TAI) 0.32 2.78 10.03
Navicula seminuloides Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 2.78 8.20
Achnanthes curtissima Carter Labrador, Canada (LAB) 0.20 2.77 9.90
Achnanthes pusilla (Grunow) DeToni Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.20 2.77 17.70
Epithemia adnata (Kützing) Brébisson Abisko, Sweden (ABK) 0.75 2.77 6.71
Cyclotella rossii Håkansson 1990 Labrador, Canada (LAB) 0.20 2.76 23.80
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