Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Nupela paludigena (Scherer) Lange-Bertalot 1993 Labrador, Canada (LAB) 2.40 2.40 2.40
Stenopterobia delicatissima (Lewis) Brébisson ex Van Heurck 1896 Labrador, Canada (LAB) 0.20 0.59 2.40
Achnanthes helvetica (Hustedt) Lange-Bertalot Southampton Island, Nunavut, Canada (SI) 0.19 0.61 2.39
Amphora pediculus (Kützing) Grunow Southampton Island, Nunavut, Canada (SI) 0.38 1.23 2.39
Aulacoseira distans var. humilis (A. Cleve-Euler) R. Ross in Hartley 1986 Pechora River, Russia (PEC) 0.60 1.49 2.38
Eunotia incisa Smith ex Gregory Pechora River, Russia (PEC) 2.38 2.38 2.38
Navicula begeri Krasske 1932 Northern Sweden (SWE) 0.19 0.75 2.38
Cymbella silesiaca Bleisch Yellowknife area, Northwest Territories, Canada (YEL) 0.28 1.12 2.37
Amphora inariensis Krammer Taimyr Peninsula, Russia (TAI) 0.29 0.97 2.36
Anomoeoneis vitrea (Grunow) Ross Pechora River, Russia (PEC) 0.30 0.89 2.36
Aulacoseira distans var. humilis (A. Cleve-Euler) R. Ross in Hartley 1986 Northern Sweden (SWE) 0.78 1.42 2.36
Cymbella gaeumannii Meister Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.34 1.09 2.36
Cymbella gracilis (Ehrenberg) Kützing Pechora River, Russia (PEC) 0.28 1.13 2.36
Eunotia arcus Ehrenberg Pechora River, Russia (PEC) 0.79 1.57 2.36
Navicula subminuscula Manguin Northern Sweden (SWE) 0.54 0.97 2.36
Achnanthes impexiformis Lange-Bertalot Abisko, Sweden (ABK) 0.23 0.57 2.35
Navicula absoluta Hustedt Taimyr Peninsula, Russia (TAI) 0.58 1.03 2.34
Nitzschia alpina Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.79 2.34
Diadesmis paracontenta Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.28 1.17 2.33
Navicula digitulus Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.99 2.33
Nitzschia perminuta (Grunow) Peragallo Pechora River, Russia (PEC) 0.29 0.95 2.33
Eucocconeis flexella (Kützing) Cleve Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.36 1.33 2.31
Hannaea arcus var. linearis Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 2.31 2.31 2.31
Navicula cf. cryptolyra YUK CDD Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.67 1.49 2.31
Simonsenia delognei (Grunow) Lange-Bertalot Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.86 2.31
Tabellaria flocculosa (Roth) Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.71 2.31
Achnanthes subatomoides (Hustedt) Lange-Bertalot et Archibald Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.76 2.30
Eunotia nymanniana Grunow in Van Heurck 1881 Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 0.88 2.30
Meridion circulare (Greville) Agardh Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 1.29 1.80 2.30
Navicula pseudoscutiformis Hustedt Pechora River, Russia (PEC) 0.28 0.89 2.30
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