Supplemental visual material
Site of infection: small intestine
Typical size: up to 10 meters in length
First intermediate host: Copepods ingest the coracidia that hatch from the operculated eggs. Procercoids develop in the hemocoel
Second intermediate host: multiple species of freshwater fish, especially salmonids. Pleurocercoids develop in the muscles and viscera. Paratenic hosts are common and help bridge the ascension of the parasite from copepods to predatory fish.
Originals; photographs by S.J. Upton
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Kansas State University | Biology Division