Truttaedacnitis

Truttaedacnitis are one of the most common nematodes encountered in salmonids and whitefish in Oregon. Under the microscope, the worms have a characteristic head structure.

The species found in salmonids is Truttaedacnitis truttae. Truttaedacnitis worms have been seen also in Pacific lamprey.

Distribution: Salmonid populations, particularly in Oregon
Hosts: Salmonids, whitefish, Pacific lamprey
Detection Methods: Gross pathology / gross clinical signs
Target tissue: Viscera