Fish Die-off tied to Virus

There have been a number of unexplained fish die off events in the smaller lakes throughout the Southwest in recent months.  These have been primarily carp and they show symptoms of suffocation just before passing.  Major carp mortality have also been reported in the reservoirs along the Colorado River.  This has been investigated by the Arizona Game and Fish Department.  These investigations have been hard because a virus has been suspected and once the fish die, so does the virus.  This article shows that officials have narrowed this down to the Koi Herpes Virus or KHV.  For more information you can view this article.


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