Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Nitzschia perminuta (Grunow) Peragallo Southampton Island, Nunavut, Canada (SI) 0.97 2.40 3.71
Cavinula cocconeiformis (Gregory ex Greville) Mann et Stickle Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.96 0.96 0.96
Achnanthes chlidanos Hohn et Hellermann Southampton Island, Nunavut, Canada (SI) 0.95 3.52 7.20
Achnanthes marginulata Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.95 2.95 8.41
Epithemia turgida (Ehrenberg) Kützing Northern Sweden (SWE) 0.95 0.95 0.95
Eunotia bilunaris var. mucophila Lange-Bertalot et Nörpel Pechora River, Russia (PEC) 0.95 1.57 2.59
Navicula eidrigiana Carter Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.95 0.95 0.95
Nitzschia perminuta (Grunow) Peragallo Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.95 14.63 31.61
Psammothidium delicatulum Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.95 0.95 0.95
Stephanodiscus minutulus (Kützing) Cleve et Möller Taimyr Peninsula, Russia (TAI) 0.95 39.23 77.51
Achnanthes lanceolata (Brébisson ex Kützing) Grunow Abisko, Sweden (ABK) 0.93 0.93 0.93
Cyclotella comensis Grunow et Van Heurck 1882 Lena River, Russia (LEN) 0.93 21.37 39.06
Eunotia sp. 3 DERMOT Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.93 0.93 0.93
Fragilaria cf. pinnata (fine) LEN TAI Lena River, Russia (LEN) 0.93 3.62 8.07
Fragilaria pseudoconstruens Marciniak Lena River, Russia (LEN) 0.93 2.94 5.67
Navicula difficillimoides Hustedt Northern Sweden (SWE) 0.93 0.93 0.93
Sellaphora pseudonana Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.93 0.93 0.93
Eunotia praerupta Ehrenberg Lena River, Russia (LEN) 0.92 1.51 2.10
Cyclotella bodanica var. lemanica (O. Müller ex Schroter) Bachmann 1903 Taimyr Peninsula, Russia (TAI) 0.90 1.02 1.22
Eunotia exigua (Brébisson ex Kützing) Rabenhorst Pechora River, Russia (PEC) 0.90 3.38 14.20
Navicula cf. miniscula QUE-TAI-LEN CDD Taimyr Peninsula, Russia (TAI) 0.88 1.41 2.85
Fragilaria pinnata Ehrenberg Lena River, Russia (LEN) 0.87 20.53 73.26
Navicula aboensis (Cleve) Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.87 1.56 2.25
Achnanthes minutissima Kützing Yellowknife area, Northwest Territories, Canada (YEL) 0.85 6.30 13.48
Fragilaria delicatissima Northern Sweden (SWE) 0.85 0.85 0.85
Navicula ignota var. acceptata (Hustedt) Lange-Bertalot Yellowknife area, Northwest Territories, Canada (YEL) 0.85 0.85 0.85
Fragilaria fasciculata (Agardh) Lange-Bertalot Southampton Island, Nunavut, Canada (SI) 0.82 7.73 14.65
Aulacoseira granulata (Ehrenberg) Simonsen Northern Quebec (QUE) 0.80 2.53 7.60
Fragilaria cf. parasitica CDD_FM (W. Smith) Grunow in Van Heurck 1881 Northern Quebec (QUE) 0.80 1.27 1.80
Navicula agrestis Hustedt Labrador, Canada (LAB) 0.80 4.10 9.90
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