Michigan Department of Natural Resources
Research and Development Report
No. 246
Fisheries Research Report No. 1782, 1971
Symptomatic Key to Diseases of Salmonid Fish in Michigan Hatcheries, 1971
Leonard N. Allison
Fish Pathologist
This report contains a 2-page dichotomous and diagnostic key to 23 kinds of fish diseases which occur in Michigan hatcheries, mostly among salmonids, and a 4-page list of treatments recommended for individual diseases. The recommended treatment is specified in the 2-page key for each disease. This guide has proved to be useful to Michigan’s fish-culturists, and therefore has been duplicated in this formal report series. Incidentally, August 13, 1971 was the date of Dr. Allison’s retirement from State service.