The distribution and abundance of planktonic diatoms in Lake Superior
The principal diatoms collected at 14 stations in Lake Superior were Cyclotella "glomerata-stelligera" [= C. glomerata and C. stelligera combined], Cyclotella "ocellata-kutzingiana", Fragilaria crotonensis , and Rhizosolenia eriensis . Concentrations were heaviest in the Apostle Islands region (up to 2,160 per ml) and lightest northwest of the Keweenaw Peninsula (68 to 78 per ml). Species composition differed in different parts of the lake.
Apostle Islandsm, Keweenaw Peninsula, Lake Superio↗