Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Cyclotella stelligera (Cleve et Grunow) Van Heurck Taimyr Peninsula, Russia (TAI) 0.28 13.58 65.05
Fragilaria construens var. venter (Ehrenberg) Grunow Taimyr Peninsula, Russia (TAI) 0.29 13.55 48.52
Cyclotella tripartita Håkansson Bylot Island, Nunavut, Canada. (BYL) 11.08 13.24 15.10
Chamaepinnularia gandrupii (Petersen) Lange-Bertalot et Krammer Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.37 13.09 54.66
Psammothidium marginulatum (Grunow) Bukhtiyarova and Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 12.95 83.53
Gomphonema lagerheimii Cleve Bylot Island, Nunavut, Canada. (BYL) 2.00 12.92 31.50
Nitzschia perminuta (Grunow) Peragallo Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.39 12.26 38.26
Staurosirella pinnata (Ehrenberg) Williams et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.39 12.07 38.97
Aulacoseira subarctica (Müller) Haworth Southampton Island, Nunavut, Canada (SI) 0.18 11.14 26.61
Navicula begeri Krasske 1932 Pechora River, Russia (PEC) 10.71 10.71 10.71
Fragilaria virescens var. exigua Grunow Northern Quebec (QUE) 0.40 10.66 45.70
Cyclotella stelligera (Cleve et Grunow) Van Heurck Yellowknife area, Northwest Territories, Canada (YEL) 1.13 10.50 22.83
Asterionella sp. 1 QUEBEC CDD_FM Northern Quebec (QUE) 10.40 10.40 10.40
Fragilaria elliptica Schumann Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 10.40 80.26
Fragilaria construens fo. venter (Ehrenberg) Hustedt 1957 Southampton Island, Nunavut, Canada (SI) 6.27 10.19 27.94
Fragilaria virescens var. exigua Grunow Pechora River, Russia (PEC) 1.08 9.94 40.44
Nitzschia clausii Hantzsch Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.38 9.78 47.47
Cyclotella stelligera (Cleve et Grunow) Van Heurck Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 9.62 9.62 9.62
Fragilaria pinnata Ehrenberg Abisko, Sweden (ABK) 0.21 9.30 35.06
Frustulia cf. crassinervia DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 9.29 9.29 9.29
Cyclotella glomerata Bachmann Northern Sweden (SWE) 0.24 9.13 44.34
Cyclotella stelligera (Cleve et Grunow) Van Heurck Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 9.02 51.49
Achnanthes minutissima Kützing Lena River, Russia (LEN) 0.29 9.01 37.69
Pseudostaurosira pseudoconstruens (Marciniak) Williams et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 8.75 8.75 8.75
Aulacoseira ambigua (Grunow) Simonsen Pechora River, Russia (PEC) 0.27 8.47 32.73
Navicula veneta Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 8.28 8.28 8.28
Frustulia rhomboides var. saxonica (Rabenhorst) deToni Abisko, Sweden (ABK) 0.23 8.05 39.25
Fragilaria pseudoconstruens Marciniak Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 7.95 65.68
Aulacoseira subarctica IR DIAT_UME morphotype II Gulspettvatn 1989 Abisko, Sweden (ABK) 0.47 7.91 28.85
Fragilaria virescens var. exigua Grunow Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.20 7.83 34.43
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