Occurrence (%)
Taxon name Dataset region Minimum Average Maximum
Melosira arentii (Kolbe) Nagumo et Kobayasi 1977 Northern Quebec (QUE) 0.20 1.55 6.60
Navicula cryptonella Northern Quebec (QUE) 0.40 1.88 6.60
Navicula seminulum Grunow Labrador, Canada (LAB) 0.60 2.79 6.60
Pinnularia sp. 1 QUEBEC CDD_FM Northern Quebec (QUE) 0.20 1.69 6.60
Aulacoseira distans (Ehrenberg) Simonsen Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 2.58 6.58
Fragilaria famelica (Kützing) Lange-Bertalot Salluit, Kangiqsujuaq and Quaqtaq, Ungava Peninsula, Nunavik, Canada (SAL) 0.19 1.07 6.58
Fragilaria virescens var. exigua Grunow Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.33 2.00 6.58
Achnanthes marginulata Grunow Southampton Island, Nunavut, Canada (SI) 0.58 4.14 6.56
Achnanthes marginulata Grunow Pechora River, Russia (PEC) 6.55 6.55 6.55
Cymbella aequalis Smith Northern Sweden (SWE) 0.37 3.45 6.54
Navicula cryptocephala Kützing Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 0.36 2.04 6.52
Gomphonema angustum Agardh 1831 Yukon and Tuktoyaktuk Peninsula, Northwest Territories, Canada (YUK) 0.32 2.49 6.51
Cymbopleura angustata var. spitsbergensis Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.19 2.35 6.50
Fragilaria spp. DIAT_UME Northern Sweden (SWE) 0.18 1.41 6.49
Achnanthes detha Hohn et Hellermann Northern Sweden (SWE) 0.17 1.69 6.48
Brachysira zellensis (Grunow) Round et Mann Abisko, Sweden (ABK) 0.20 0.75 6.48
Stauroneis anceps fo. gracilis Rabenhorst Northern Sweden (SWE) 0.18 1.08 6.46
Cymbella perpusilla Cleve Abisko, Sweden (ABK) 0.20 0.99 6.45
Stauroneis anceps Ehrenberg Abisko, Sweden (ABK) 0.20 1.27 6.44
Berkeleya rutilans (Trentepohl) Grunow Alert, Queen Elizabeth Islands, Canadian Arctic Archipelago (ALERT) 0.58 3.50 6.42
Navicula jaernefeltii Hustedt 1942 Northern Quebec (QUE) 0.20 1.09 6.40
Navicula seminulum Grunow Yellowknife area, Northwest Territories, Canada (YEL) 0.26 3.01 6.40
Navicula subtilissima Cleve Abisko, Sweden (ABK) 0.22 1.33 6.40
Nitzschia acicularis (Kützing) Smith Pechora River, Russia (PEC) 0.29 1.58 6.40
Fragilaria tenera (Smith) Lange-Bertalot Taimyr Peninsula, Russia (TAI) 0.33 2.07 6.39
Frustulia rhomboides (Ehrenberg) De Toni Abisko, Sweden (ABK) 0.23 1.01 6.39
Asterionella formosa Hassal Taimyr Peninsula, Russia (TAI) 0.28 1.74 6.37
Navicula cf. absoluta LEN-PEC-TAI CDD Lena River, Russia (LEN) 0.31 1.64 6.37
Navicula bryophila Petersen Abisko, Sweden (ABK) 0.23 1.01 6.34
Navicula reinhardtii (Grunow) Grunow Mould Bay, Prince Patrick Island, Canadian Arctic Archipelago (MB) 4.80 5.57 6.34
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