Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Cavinula jaernefeltii (Hustedt) D.G. Mann et A.J. Stickle 1990 Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 54.36 54.36 54.36
Platessa rupestris (Krasske) Lange-Bertalot Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 24.42 24.42 24.42
Fragilaria construens var. venter (Ehrenberg) Grunow Bylot Island, Nunavut, Canada. (BYL) 19.34 22.52 25.84
Fragilaria crotonensis Kitton Abisko, Sweden (ABK) 19.19 19.19 19.19
Cyclotella iris Brun et Héribaud Abisko, Sweden (ABK) 17.98 17.98 17.98
Eunotia serra var. diadema (Ehrenberg) Patrick Pechora River, Russia (PEC) 16.67 16.67 16.67
Fragilaria brevistriata Grunow Bylot Island, Nunavut, Canada. (BYL) 14.56 16.29 18.03
Navicula libonensis Schoeman Taimyr Peninsula, Russia (TAI) 14.33 14.33 14.33
Pinnularia angustiborealis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 13.95 13.95 13.95
Cyclotella tripartita Håkansson Bylot Island, Nunavut, Canada. (BYL) 11.08 13.24 15.10
Navicula begeri Krasske 1932 Pechora River, Russia (PEC) 10.71 10.71 10.71
Fragilaria pinnata var. lancettula (Schumann) Hustedt Southampton Island, Nunavut, Canada (SI) 10.60 18.48 30.34
Asterionella sp. 1 QUEBEC CDD_FM Northern Quebec (QUE) 10.40 10.40 10.40
Cyclotella stelligera (Cleve et Grunow) Van Heurck Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 9.62 9.62 9.62
Frustulia cf. crassinervia DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 9.29 9.29 9.29
Pseudostaurosira pseudoconstruens (Marciniak) Williams et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 8.75 8.75 8.75
Navicula veneta Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 8.28 8.28 8.28
Achnanthes cf. kriegeri SI-CDD Krasske 1943 Southampton Island, Nunavut, Canada (SI) 8.04 16.27 21.81
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck Lena River, Russia (LEN) 7.79 7.79 7.79
Stephanodiscus alpinus Hustedt Pechora River, Russia (PEC) 7.51 7.51 7.51
Navicula soehrensis var. hassiaca (Krasske) Lange-Bertalot Pechora River, Russia (PEC) 7.14 7.14 7.14
Pseudostaurosira brevistriata (Grunow) Williams et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 6.64 6.64 6.64
Achnanthes marginulata Grunow Pechora River, Russia (PEC) 6.55 6.55 6.55
Fragilaria construens fo. venter (Ehrenberg) Hustedt 1957 Southampton Island, Nunavut, Canada (SI) 6.27 10.19 27.94
Achnanthes clevei Grunow Yellowknife area, Northwest Territories, Canada (YEL) 6.20 6.20 6.20
Planothidium peragalloi Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 5.32 5.32 5.32
Navicula gregaria Donkin Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 5.13 7.24 9.35
Aulacoseira cf. crassipunctata DERMOT Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 4.85 4.85 4.85
Frustulia crassinervia (Brebisson) Lange-Bertalot et Krammer Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 4.83 4.83 4.83
Navicula reinhardtii (Grunow) Grunow Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 4.80 5.57 6.34
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