Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot Lena River, Russia (LEN) 0.31 2.01 6.97
Aulacoseira distans (Ehrenberg) Simonsen Southampton Island, Nunavut, Canada (SI) 0.39 2.31 6.96
Brachysira cf. procera CDD_FM Lange-Bertalot et Moser 1994 Southampton Island, Nunavut, Canada (SI) 0.20 2.84 6.94
Navicula cf. begeri CDD_FM (Krasske) Krasske 1932 Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 2.74 6.91
Eunotia incisa Smith ex Gregory Labrador, Canada (LAB) 0.20 1.10 6.90
Navicula cf. trivialis YUK CDD Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 1.44 6.89
Navicula sp. 1 Siberia CDD_FM Lena River, Russia (LEN) 0.62 2.16 6.88
Cymbella hebridica Grunow ex Cleve Abisko, Sweden (ABK) 0.21 1.34 6.87
Aulacoseira lirata (Ehrenberg) Ross Northern Sweden (SWE) 0.66 2.14 6.86
Navicula seminulum Grunow Abisko, Sweden (ABK) 0.23 1.83 6.86
Achnanthes laterostrata Hustedt Abisko, Sweden (ABK) 0.23 1.30 6.84
Navicula rynchocephala Bylot Island, Nunavut, Canada. (BYL) 0.11 3.14 6.82
Achnanthes carissima Lange-Bertalot Labrador, Canada (LAB) 0.20 2.25 6.80
Aulacoseira canadensis (Hustedt) Simonsen Northern Quebec (QUE) 0.20 2.70 6.80
Tabellaria flocculosa (Roth) Kützing Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.25 1.27 6.80
Brachysira neoexilis CDD_FM morphotype II Lange-Bertalot in Lange-Bertalot et Moser 1994 Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.30 1.21 6.77
Achnanthes scotica Flower et Jones Abisko, Sweden (ABK) 0.24 1.22 6.76
Fragilaria neoproducta Lange-Bertalot Southampton Island, Nunavut, Canada (SI) 0.60 3.03 6.76
Achnanthes curtissima Carter Lena River, Russia (LEN) 0.30 2.02 6.75
Amphora spitzbergensis Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.38 2.94 6.74
Asterionella formosa Hassal Pechora River, Russia (PEC) 0.28 2.43 6.72
Achnanthes austriaca var. helvetica Hustedt Abisko, Sweden (ABK) 0.20 1.05 6.71
Epithemia adnata (Kützing) Brébisson Abisko, Sweden (ABK) 0.75 2.77 6.71
Cymbella botellus Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 1.87 6.69
Fragilaria virescens Ralfs Pechora River, Russia (PEC) 0.29 1.95 6.67
Neidium bergii Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.19 1.56 6.65
Pseudostaurosira brevistriata (Grunow) Williams et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 6.64 6.64 6.64
Aulacoseira subarctica (Müller) Haworth Pechora River, Russia (PEC) 0.30 3.24 6.61
Navicula digitulus Hustedt Northern Sweden (SWE) 0.19 1.69 6.61
Aulacoseira distans var. nivalis (Smith) Haworth Northern Quebec (QUE) 0.20 2.04 6.60
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