Thursday, June 30, 2011

IHN at Dworshak National Fish Hatchery

A new outbreak of the IHN virus at Idaho's Dworshak National Fish Hatchery has forced fisheries managers to destroy more than 300,000 juvenile steelhead. The fish are being killed to help prevent the spread of the disease to uninfected juvenile fish. The hatchery was built to mitigate the loss of the North Fork Clearwater River, once the primary spawning tributary of the basin's B-Run steelhead when Dworshak dam blocked all migrating fish at river mile 4. IHN has long been a problem for the Idaho hatchery and can be spread to wild fish. More information in the Republic:

1 comment:

Anonymous said...

Still waiting to hear positive results from mitigation hatchery bureaucracies. Yawn.