Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Fragilaria pseudoconstruens Marciniak Bylot Island, Nunavut, Canada. (BYL) 4.65 6.49 8.65
Navicula soehrensis var. muscicola (Petersen) Krasske Northern Sweden (SWE) 4.64 4.64 4.64
Fragilaria construens var. subrotunda Bylot Island, Nunavut, Canada. (BYL) 4.37 7.30 9.50
Amphora commutata Grunow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 4.30 4.30 4.30
Cymbopleura venetaeformis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 4.29 4.29 4.29
Navicula capitata Ehrenberg Taimyr Peninsula, Russia (TAI) 4.27 6.56 8.86
Nitzschia vitrea Norman Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 4.17 4.17 4.17
Diploneis modica Hustedt Lena River, Russia (LEN) 4.10 4.10 4.10
Neidium bergii Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 3.90 3.90 3.90
Achnanthes flexella var. alpestris Brun Abisko, Sweden (ABK) 3.85 3.85 3.85
Navicula bjoernoeyaensis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 3.75 3.75 3.75
Eunotia exigua var. tridentula Østrup Pechora River, Russia (PEC) 3.74 3.74 3.74
Gomphonema minutum (Agardh) Agardh Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 3.74 3.74 3.74
Gomphonema cf. pseudotenellum YUK CDD Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 3.68 3.68 3.68
Aulacoseira lirata (Ehrenberg) Ross Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 3.62 3.62 3.62
Achnanthes scotica Flower et Jones Pechora River, Russia (PEC) 3.57 3.57 3.57
Stauroneis thermicoloides Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 3.52 3.52 3.52
Achnanthes suchlandtii Hustedt Bylot Island, Nunavut, Canada. (BYL) 3.45 7.41 8.76
Gomphonema distans (Cleve-Euler) Lange-Bertalot et Reichardt Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 3.44 3.44 3.44
Fragilaria capucina var. capucina Desmazières 1825 Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 3.30 6.23 8.63
Neidium cf. affine DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 3.26 3.26 3.26
Staurosira construens var. subrotunda Bylot Island, Nunavut, Canada. (BYL) 3.21 15.59 24.01
Cyclotella rossii DIAT_UME morphotype III Håkansson 1990 Northern Sweden (SWE) 3.15 3.15 3.15
Fragilaria virescens var. exigua Grunow Bylot Island, Nunavut, Canada. (BYL) 2.99 18.01 27.27
Tabularia fasciculata (Agardh) Williams et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 2.95 2.95 2.95
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 bryophila Petersen Lena River, Russia (LEN) 2.76 2.76 2.76
Cymbopleura lapponica Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 2.60 2.62 2.64
Navicula cf. veneta DERMOT Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 2.59 2.59 2.59
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