Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Frustulia rhomboides var. saxonica (Rabenhorst) deToni Pechora River, Russia (PEC) 0.29 0.70 1.19
Gomphonema parvulum (Kützing) Kützing Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.70 1.99
Navicula cf. cocconeiformis CDD Pechora River, Russia (PEC) 0.29 0.70 1.13
Navicula cf. cocconeiformis CDD Lena River, Russia (LEN) 0.31 0.70 1.25
Navicula disjuncta Hustedt Northern Quebec (QUE) 0.20 0.70 1.60
Navicula explanata Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.70 1.97
Navicula jaernefeltii Hustedt 1942 Lena River, Russia (LEN) 0.30 0.70 1.25
Navicula parasubtilissima Kobayasi et Nagumo Northern Quebec (QUE) 0.20 0.70 4.50
Navicula sp. 3 Siberia CDD_FM Lena River, Russia (LEN) 0.31 0.70 1.25
Pinnularia microstauron (Ehrenberg) Cleve Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.32 0.70 1.39
Pinnularia sp. ABISKO Abisko, Sweden (ABK) 0.21 0.70 1.98
Synedra tenera Smith Northern Sweden (SWE) 0.15 0.70 2.15
Achnanthes gracillima Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.31 0.69 2.96
Caloneis fusus Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.18 0.69 1.20
Cavinula pseudoscutiformis (Grunow ex Schmidt) Mann et Stickle Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.44 0.69 0.95
Cymbella naviculiformis Auerswald ex Héribaud Lena River, Russia (LEN) 0.30 0.69 1.55
Diatomella balfouriana (Smith) Greville Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.25 0.69 1.14
Navicula angusta Grunow Abisko, Sweden (ABK) 0.24 0.69 1.14
Navicula bacillum Ehrenberg Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 0.69 1.06
Navicula cf. arvensis YUK-YEL CDD Yellowknife area, Northwest Territories, Canada (YEL) 0.29 0.69 1.45
Navicula radiosa var. tenella (Brébisson ex Kützing) Grunow Northern Sweden (SWE) 0.15 0.69 1.69
Navicula sp. 40 QUEBEC CDD_FM Northern Quebec (QUE) 0.20 0.69 1.40
Neidium affine (Ehrenberg) Pfitzer Northern Sweden (SWE) 0.17 0.69 2.84
Nitzschia alpina Hustedt Abisko, Sweden (ABK) 0.22 0.69 1.97
Nitzschia amphibia Grunow Taimyr Peninsula, Russia (TAI) 0.32 0.69 1.06
Nitzschia denticula Grunow Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.69 0.69 0.69
Pinnularia divergentissima (Grunow) Cleve Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.36 0.69 1.15
Psammothidium bioretii (Germain) Bukhtiyarova et Round Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.20 0.69 1.71
Achnanthes minutissima Kützing Southampton Island, Nunavut, Canada (SI) 0.20 0.68 1.19
Amphora dusenii Brunnthaler Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.30 0.68 1.32
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