Service fish biologist Nicholas Hetrick

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

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