Federal officials are promising to reinforce barriers designed to prevent hungry Asian carp from reaching the Great Lakes, where scientists fear the invaders could damage the fishing and tourism industries by starving out native species.
The Obama administration is releasing an updated plan later Wednesday for protecting the lakes from bighead and silver carp, which have infested the Mississippi River and many of its tributaries. The Associated Press obtained an outline of the administration's $50 million strategy ahead of its official release.
It calls for building a new electric barrier in a Chicago-area shipping canal to replace a decade-old demonstration model.
Additionally, Illinois officials will oversee design and construction of a mobile electric device that can be dragged like a curtain to herd fish or serve as a temporary barrier.