Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Achnanthes oestrupii (Cleve-Euler) Hustedt Lena River, Russia (LEN) 0.27 1.48 5.52
Achnanthes pusilla (Grunow) DeToni Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.36 3.55
Achnanthes saccula Carter Pechora River, Russia (PEC) 0.27 1.59 4.80
Achnanthes suchlandtii Hustedt Lena River, Russia (LEN) 0.27 1.07 2.23
Anomoeoneis brachysira (Brébisson) Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.80 4.94
Aulacoseira alpigena (Grunow) Krammer Southampton Island, Nunavut, Canada (SI) 0.27 0.88 1.97
Aulacoseira ambigua (Grunow) Simonsen Pechora River, Russia (PEC) 0.27 8.47 32.73
Cyclotella ocellata Pantocsek Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.17 2.07
Cymbella hebridica Grunow ex Cleve Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.63 1.45
Cymbella naviculiformis Auerswald ex Héribaud Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.38 0.58
Diploneis oculata (Brébisson) Cleve Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.38 0.58
Eunotia intermedia (Krasske ex Hustedt) Nörpel et Lange-Bertalot Lena River, Russia (LEN) 0.27 1.48 9.91
Fragilaria brevistriata Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.27 3.42 9.01
Frustulia rhomboides var. crassinervia (Brébisson ex Smith) Ross Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.78 2.22
Frustulia rhomboides var. saxonica (Rabenhorst) deToni Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.55 5.92
Gomphonema gracile Ehrenberg emend Van Heurck Pechora River, Russia (PEC) 0.27 0.75 3.15
Navicula agrestis Hustedt Taimyr Peninsula, Russia (TAI) 0.27 0.83 3.96
Navicula cf. vitiosa SWE-TAI-LEN CDD Schimanski 1978 Lena River, Russia (LEN) 0.27 2.75 17.30
Navicula digitulus Hustedt Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.99 2.33
Navicula digitulus Hustedt Pechora River, Russia (PEC) 0.27 1.11 3.60
Navicula jaernefeltii Hustedt 1942 Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.66 1.16
Navicula laticeps Hustedt Lena River, Russia (LEN) 0.27 0.81 2.03
Navicula pupula Kützing Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.58 1.97
Navicula subtilissima Cleve Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.84 9.07
Navicula vitiosa Schimanski Yellowknife area, Northwest Territories, Canada (YEL) 0.27 2.18 7.77
Neidium iridis (Ehrenberg) Cleve Yellowknife area, Northwest Territories, Canada (YEL) 0.27 0.29 0.32
Nitzschia dissipata var. media (Hantzsch) Grunow Lena River, Russia (LEN) 0.27 1.24 2.84
Pinnularia biceps Gregory Yellowknife area, Northwest Territories, Canada (YEL) 0.27 1.66 4.78
Stephanocostis chantaicus Genkal et Kuzmin 1985 Southampton Island, Nunavut, Canada (SI) 0.27 1.69 3.10
Achnanthes biasolettiana (Kützing) Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.26 0.27 0.28
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