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Diseases and parasites of the sea lamprey, Petromyzon marinus, in the Lake Huron basin
Alberton L. McLain
1952, Transactions of the American Fisheries Society (81) 94-100
Sea lampreys from the Lake Huron basin carried no external parasites and showed a fairly low degree of infection by internal parasites. The material examined represented three life-history stages of the sea lamprey. Recently transformed downstream migrants (215 specimens) harbored only nematodes belonging to the genus Camallanus. The percentage of...