||Fish and Wildlife as Related to Water Quality of the Lake Superior Basin.
||Fish and Wildlife Service, Washington, D.C.
Water pollution ;
Lake Superior Basin ;
Water quality data
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
This is a report on the effects of water quality upon the fish and wildlife resources of the Lake Superior Basin. The Lake Superior Basin lies almost wholly on igneous and metamorphic rocks of the Pre-Cambrian era of the Canadian shield. This drainage is relatively infertile, contributing to low productivity and the oligotrophic character of Lake Superior. It is unique among the Great Lakes in that it is nearly surrounded by high lands with generally rocky shores.