Michigan Department of Conservation
Research and Development Report No. 35
Institute for Fisheries Research Report No. 1705, 1965
Effects of Acid Mine Water on the Fish Populations
in the Iron and Brule Rivers, Iron County
Merle G. Galbraith, Jr.
This report primarily concerns a follow-up investigation made on September 21-23, 1964 at the request of the Water Resources Commission, to assess recovery of fish populations in portions of the Iron and Brule rivers that had been subjected to mine-water pollution. Some of the information in reports [Institute for Fisheries Research Report No. 1674;
letter by T. M. Stauffer to G. P. Cooper, October 18, 1963] on collections taken here previously is included. The following two paragraphs outline the pollution problem and summarize the fish collecting that was done on the affected areas before 1964 by field men of the Institute for Fisheries Research and the Water Resources Commission.