Service fish biologist Nicholas Hetrick

a man standing next to a river
Photo By/Credit

John Heil/USFWS

Media Usage Rights/License
Public Domain
Image
Service fish biologist Nicholas Hetrick recognized early on the need to develop a prevalence of infection study on the parasite (Ceratonova shasta), its impact on the juvenile salmon population levels. Credit: John Heil/USFWS
Facility
Arcata Fish and Wildlife Office
Ecosystem
River/stream
Subject tags
Adults