Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Pinnularia schroeterae Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.38 1.04 1.90
Synedra ulna (Nitzsch) Ehrenberg Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 1.04 4.62
Achnanthes delicatula (Kützing) Grunow Pechora River, Russia (PEC) 0.60 1.03 1.46
Aulacoseira ambigua (Grunow) Simonsen Lena River, Russia (LEN) 0.31 1.03 3.77
Cymbella minuta Hilse ex Rabenhorst Yellowknife area, Northwest Territories, Canada (YEL) 0.25 1.03 2.88
Cymbella silesiaca Bleisch Abisko, Sweden (ABK) 0.20 1.03 7.84
Fragilaria pinnata var. lancettula (Schumann) Hustedt Northern Quebec (QUE) 0.20 1.03 2.20
Navicula absoluta Hustedt Taimyr Peninsula, Russia (TAI) 0.58 1.03 2.34
Navicula cf. seminulum LEN-PEC-TAI CDD Taimyr Peninsula, Russia (TAI) 0.29 1.03 2.40
Navicula digitulus Hustedt Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.31 1.03 2.63
Navicula pseudoventralis Hustedt Northern Sweden (SWE) 1.03 1.03 1.03
Navicula vitabunda Hustedt Abisko, Sweden (ABK) 0.23 1.03 1.49
Nitzschia acicularis (Kützing) Smith Lena River, Russia (LEN) 0.31 1.03 1.25
Nitzschia gracilis Hantzsch ex Rabenhorst Taimyr Peninsula, Russia (TAI) 0.55 1.03 2.56
Nitzschia gracilis Hantzsch ex Rabenhorst Abisko, Sweden (ABK) 0.22 1.03 12.87
Nitzschia palea (Kützing) Smith Abisko, Sweden (ABK) 0.21 1.03 6.28
Pinnularia balfouriana Grunow ex Cleve Pechora River, Russia (PEC) 1.03 1.03 1.03
Sellaphora pupula (Kützing) Meresckowsky Bylot Island, Nunavut, Canada. (BYL) 0.11 1.03 3.09
Tabellaria sp. ABISKO Abisko, Sweden (ABK) 0.24 1.03 1.83
Achnanthes kuelbsii Lange-Bertalot Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.31 1.02 3.25
Achnanthes suchlandtii Hustedt Taimyr Peninsula, Russia (TAI) 0.33 1.02 2.44
Achnanthes ventralis (Krasske) Lange-Bertalot Lena River, Russia (LEN) 0.30 1.02 4.07
Cyclotella bodanica var. lemanica (O. Müller ex Schroter) Bachmann 1903 Taimyr Peninsula, Russia (TAI) 0.90 1.02 1.22
Cymbella naviculiformis Auerswald ex Héribaud Pechora River, Russia (PEC) 0.59 1.02 1.45
Encyonema minutum (Hilse) Mann Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.37 1.02 2.59
Encyonema silesiacum (Bleisch) Mann Isachsen, Ellef Ringnes Island, Canadian High Arctic (ISACH) 0.35 1.02 2.07
Encyonopsis descripta (Hustedt) Krammer Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.38 1.02 2.16
Eunotia vanheurckii var. intermedia (Krasske ex Hustedt) Patrick Northern Sweden (SWE) 0.17 1.02 2.27
Navicula mediocris Krasske Labrador, Canada (LAB) 0.20 1.02 3.40
Navicula minima Grunow Northern Quebec (QUE) 0.20 1.02 3.40
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