Six Midwest states , Canadian province of Ontario want action on Asian carp . State officials , businesses , and environmentalists fear it is only a step away from triggering a swift economic disaster across the Great Lakes , saying that once in Lake Michigan the carp would spread quickly to Lakes Erie , Huron , Ontario , and Superior . Comment: The large , voracious Asian carp is seen as a threat to native species . The fish got into the Mississippi River system from a fish farm during a flood in the 1990s .
Six Midwest states , Canadian province of Ontario want action on Asian carp . Comment: The large , voracious Asian carp is seen as a threat to native species . The fish got into the Mississippi River system from a fish farm during a flood in the 1990s .