Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Nitzschia acicularis (Kützing) Smith Taimyr Peninsula, Russia (TAI) 0.29 1.08 5.83
Fragilaria construens (Ehrenberg) Grunow 1862 Pechora River, Russia (PEC) 0.28 1.71 5.81
Achnanthes marginulata Grunow Northern Quebec (QUE) 0.20 1.61 5.80
Navicula vitiosa Schimanski Northern Sweden (SWE) 0.16 1.68 5.80
Pinnularia pluviana Sovereign 1963 Northern Quebec (QUE) 0.20 1.64 5.80
Navicula soehrensis Krasske Northern Sweden (SWE) 0.37 2.37 5.79
Cyclotella comta (Ehrenberg) Kützing Northern Sweden (SWE) 0.38 3.12 5.78
Eucocconeis laevis (Østrup) Lange-Bertalot Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.33 1.69 5.78
Nitzschia valdestriata Aleem et Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 1.30 5.78
Eunotia mensturi Pechora River, Russia (PEC) 2.32 4.04 5.75
Diadesmis ingeaeformis Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.22 1.43 5.71
Nitzschia sp. 1 DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.30 1.62 5.70
Fragilaria pseudoconstruens Marciniak Lena River, Russia (LEN) 0.93 2.94 5.67
Pinnularia viridis (Nitzsch) Ehrenberg Abisko, Sweden (ABK) 0.24 1.53 5.67
Navicula menisculus Schumann Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 1.41 5.61
Psammothidium marginulatum (Grunow) Bukhtiyarova and Round Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.62 2.18 5.61
Achnanthes subatomoides (Hustedt) Lange-Bertalot et Archibald Labrador, Canada (LAB) 0.20 1.25 5.60
Cyclotella bodanica var. lemanica (O. Müller ex Schroter) Bachmann 1903 Labrador, Canada (LAB) 0.20 1.17 5.60
Nitzschia fonticola Grunow Northern Quebec (QUE) 0.20 1.62 5.60
Achnanthes carissima Lange-Bertalot Northern Sweden (SWE) 0.16 1.20 5.57
Achnanthes didyma Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.26 2.71 5.57
Achnanthes spp. DIAT_UME Northern Sweden (SWE) 0.18 1.12 5.56
Tabellaria cf. flocculosa ABISKO (Roth) Kützing 1844 Abisko, Sweden (ABK) 0.23 0.62 5.56
Achnanthes oestrupii (Cleve-Euler) Hustedt Lena River, Russia (LEN) 0.27 1.48 5.52
Achnanthes rossii Hustedt 1954 Lena River, Russia (LEN) 0.31 1.26 5.52
Frustulia rhomboides var. saxonica (Rabenhorst) De Toni 1891 Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 1.30 2.64 5.52
Navicula mediocris Krasske Northern Sweden (SWE) 0.16 1.83 5.52
Nitzschia palea (Kützing) Smith Taimyr Peninsula, Russia (TAI) 0.30 1.25 5.49
Pinnularia aestuarii Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.40 2.13 5.47
Gomphonema distans (Cleve-Euler) Lange-Bertalot et Reichardt Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.25 1.77 5.43
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