Join Date: Feb 2017
Location: Skagit, Skeena, Yakima, Methow
Fish kills are not uncommon at hatcheries; by either mechanical failure, human error, or Mother Nature dishing out a dose that can't be rectified. There were two substantial fish kills in Washington this spring. One was at the Cowlitz Hatchery, in which the reason behind it has been pretty tight lipped. The other in Chelan county; I think debris from high water (runoff) plugged the intakes on this one.
Of course the same thing happens in the wild...with flood, drought, or other natural disasters. It is always unfortunate but even though they have been designing hatcheries for over 100 years, nothing is every completely fool proof.