Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Navicula tantula Hustedt Northern Sweden (SWE) 0.51 0.51 0.51
Neidium sp. ladogensis/dilatatum YEL Yellowknife area, Northwest Territories, Canada (YEL) 0.28 0.51 1.17
Nitzschia commutata Grunow Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.17 0.51 0.76
Nitzschia recta Hantzsch ex Rabenhorst Northern Quebec (QUE) 0.20 0.51 1.80
Pinnuavis gebhardii (Krasske) Van de Vijver Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.38 0.51 0.65
Pinnularia gibba Ehrenberg Yellowknife area, Northwest Territories, Canada (YEL) 0.28 0.51 1.15
Pinnularia subcapitata var. hilseana (Janisch ex Rabenhorst) O. Müller 1898 Northern Sweden (SWE) 0.39 0.51 0.62
Psammothidium helveticum (Hustedt) Bukhtiyarova et Round Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.15 0.51 1.12
Achnanthes depressa (Cleve) Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.31 0.50 1.32
Achnanthes helvetica (Hustedt) Lange-Bertalot Northern Quebec (QUE) 0.20 0.50 1.00
Achnanthes impexiformis Lange-Bertalot Northern Sweden (SWE) 0.18 0.50 1.15
Achnanthes subatomoides (Hustedt) Lange-Bertalot et Archibald Yellowknife area, Northwest Territories, Canada (YEL) 0.26 0.50 0.84
Anomoeoneis brachysira var. zellensis (Grunow) Krammer Yellowknife area, Northwest Territories, Canada (YEL) 0.28 0.50 0.74
Cyclotella antiqua Smith Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.20 0.50 0.83
Cymbella aspera (Ehrenberg) Peragallo Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.25 0.50 0.75
Cymbella sinuata Gregory Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.35 0.50 0.65
Encyonema elginense Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.22 0.50 1.18
Encyonema minutum (Hilse) Mann Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.34 0.50 0.79
Eunotia faba (Ehrenberg) Grunow Labrador, Canada (LAB) 0.20 0.50 2.00
Eunotia meisteri Hustedt Northern Sweden (SWE) 0.19 0.50 0.97
Fragilaria construens var. binodis (Ehrenberg) Grunow Northern Sweden (SWE) 0.35 0.50 0.65
Gyrosigma acuminatum (Kützing) Rabenhorst Southampton Island, Nunavut, Canada (SI) 0.17 0.50 1.28
Navicula cocconeiformis Gregory ex Greville Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.50 1.00
Navicula gastrum (Ehrenberg) Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.34 0.50 0.66
Navicula lapidosa Krasske Abisko, Sweden (ABK) 0.24 0.50 0.75
Navicula madumensis Jorgensen 1948 Northern Sweden (SWE) 0.18 0.50 1.15
Navicula medioconvexa Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.50 0.99
Navicula pupula var. mutata (Krasske) Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.50 0.66
Navicula schadei Krasske Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.40 0.50 0.60
Navicula utermoehlii Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.50 0.67
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