Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Nupela devilensis Bylot Island, Nunavut, Canada. (BYL) 0.11 0.40 1.05
Stauroneis anceps Ehrenberg Southampton Island, Nunavut, Canada (SI) 0.19 0.40 1.05
Navicula pseudoventralis Hustedt Northern Sweden (SWE) 1.03 1.03 1.03
Pinnularia balfouriana Grunow ex Cleve Pechora River, Russia (PEC) 1.03 1.03 1.03
Achnanthes kuelbsii Lange-Bertalot Northern Sweden (SWE) 0.17 0.46 1.01
Eunotia exgracilis A. Berg ex A. Cleve-Euler 1953 Northern Sweden (SWE) 0.19 0.48 1.01
Achnanthes cf. acares CDD_FM Hohn et Hellermann 1963 Northern Quebec (QUE) 0.20 0.53 1.00
Achnanthes clevei Grunow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 0.65 1.00
Achnanthes helvetica (Hustedt) Lange-Bertalot Northern Quebec (QUE) 0.20 0.50 1.00
Achnanthes laterostrata Hustedt Northern Quebec (QUE) 0.40 0.60 1.00
Achnanthes oestrupii (Cleve-Euler) Hustedt Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 0.66 1.00
Achnanthes rossii Hustedt 1954 Taimyr Peninsula, Russia (TAI) 0.29 0.61 1.00
Achnanthes rossii Hustedt 1954 Northern Quebec (QUE) 0.20 0.48 1.00
Brachysira cf. brebissonii SI-CDD Ross 1986 Southampton Island, Nunavut, Canada (SI) 0.19 0.56 1.00
Brachysira follis (Ehrenberg) R. Ross in Hartley 1986 Northern Quebec (QUE) 1.00 1.00 1.00
Cocconeis placentula var. placentula Ehrenberg 1838 Southampton Island, Nunavut, Canada (SI) 0.18 0.29 1.00
Cyclotella michiganiana Skvortzow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 1.00 1.00 1.00
Cymbella cesatii (Rabhenhorst) Grunow ex Schmidt Northern Quebec (QUE) 0.20 0.60 1.00
Cymbella cf. schubartii CDD_FM Hustedt 1955 Labrador, Canada (LAB) 0.20 0.45 1.00
Cymbella incerta (Grunow) Cleve Northern Quebec (QUE) 0.20 0.46 1.00
Cymbella naviculiformis Auerswald ex Héribaud Northern Quebec (QUE) 0.20 0.47 1.00
Diploneis ovalis (Hilse ex Rabenhorst) Cleve Abisko, Sweden (ABK) 1.00 1.00 1.00
Eunotia intermedia (Krasske ex Hustedt) Nörpel et Lange-Bertalot Taimyr Peninsula, Russia (TAI) 0.30 0.54 1.00
Eunotia nymanniana Grunow in Van Heurck 1881 Northern Quebec (QUE) 0.20 0.49 1.00
Eunotia rhomboidea Hustedt Northern Quebec (QUE) 0.20 0.33 1.00
Eunotia rhynchocephala Hustedt Northern Quebec (QUE) 0.20 0.46 1.00
Fragilaria capucina Desmazières Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 0.72 1.00
Fragilaria capucina var. gracilis (Østrup) Hustedt Northern Quebec (QUE) 0.20 0.45 1.00
Fragilaria vaucheriae (Kützing) Petersen Labrador, Canada (LAB) 0.20 0.60 1.00
Frustulia cf. magaliesmontana CDD_FM Cholnoky 1957 Northern Quebec (QUE) 1.00 1.00 1.00
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