ID - Thousands of juvenile Steelhead trout killed to prevent disease spread

Federal fish managers say a potentially deadly virus has prompted them to kill thousands of juvenile steelhead at the Dworshak National Fish Hatchery.

Hatchery manager Mark Drobish says 332,000 fish have been euthanized since April to prevent the spread of a viral disease called Infectious Haematopoietic Necrosis, which infects salmon and trout and can be fatal.

Drobish says 240,000 of the fish were killed in April and another 92,000 were destroyed this week.

This is not the first time staff at the northern Idaho hatchery have encountered the disease.

Last September, Dworshak officials reported that they had killed tens of thousands of juvenile steelhead to reduce the threat of the disease spreading to other holding ponds at the hatchery.


Read more: http://www.idahostatesman.com/2011/06/30/1710034/thousands-of-fish-killed-to-prevent.html#ixzz1QmO3Hf7N

Infectious Haematopoietic Necrosis (IHN)

What Is It?

Infectious haematopoietic necrosis (IHN) is an infectious viral disease of salmon and trout. It was first recognised in the 1950s in sockeye and chinook salmon. The disease has most economic significance for freshwater farms, however Pacific and Atlantic salmon (Salmo salar L.) in both fresh and sea water have been severely affected.

Where and When it Might Occur?

IHN virus spread across North America in the 1970s in rainbow trout (Oncorhynchus mykiss), apparently originating from fry or egg shipments from a single source. The virus was also introduced to Japan in 1968 by eggs from Alaska and has since spread to continental Europe, although it has never been detected in British waters.

Posted by Knucklz at June 30, 2011 10:05 AM
Categories: Government, Health or Science, Conspiracy
Tags: Idaho Fish Kill Conspiracy health or science Goverment
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