State and federal wildlife agencies are getting very hard-nosed about efforts to prevent the spread of a number of aquatic invasive species . . .
The battle against aquatic invasive species continues in Montana, where wildlife officials are constantly trying to prevent milfoil, mussels and other nonnative species from contaminating local lakes and rivers. These species are transported mainly on recreational watercraft that are not properly cleaned. History has shown aquatic invasive species are a major threat to waterways and can significantly damage ecosystems and natural resources.