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Great Lakes Carp

FILE - In this June 13, 2012 an Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill., during a study on the fish's population. The U.S. Army Corps of Engineers released a report on Monday, Jan. 6, 2014, years in the making, about options for keeping Asian carp from invading the Great Lakes. The report focuses on the Chicago Area Waterway System and its network of rivers and canals that provide a direct link between Lake Michigan and the Mississippi River. (AP Photo/John Flesher, File)