
Zebra mussel
In its second year, the Idaho State Department of Agriculture’s boat inspection program has already stopped–and cleaned–a boat infested with Zebra mussels. The motorist towing the infested boat was from Nevada and the Zebra mussels were cleaned off the boat at no charge, in a process that took about an hour. Read full article here.
Zebra mussels
These tiny invaders were originally from lakes in southeast Russia, but have since hitchhiked their way into American lakes and rivers by attaching themselves to boats, anchors, even ballast water. A Zebra mussel infestation can out compete native freshwater mussels and cause algae overgrowth, but by far their greatest damage is done to human infrastructure. They can grow so densely they clog pipes in municipal water works and hydroelectric facilities, as well as cover any structure or object in an infested areas, such as boats and docks. Zebra mussel infestations in North America occur in the Great Lakes, the Mississippi and Missouri rivers, and are quickly making their way west–often on the hulls of pleasure craft.

Comparative size of mussel.
Invasive Species Prevention Sticker Law
Idaho has put in place nineteen inspection stations along key highways and entry points to the state. The program is funded by the Invasive Species Prevention Sticker Law which requires motorized and non-motorized boats to have an Invasive Species Sticker in order to launch and operate in Idaho. The cost of a sticker is $10–cheap protection from a costly invader!
View an Idaho inspection station map with links to some weekly updates. Go to Idaho’s Invasive Species Council web page.
Map of Zebra mussel locations. Courtesy of USGS.



