Asian carp

In this June 13, 2012, file photo, Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill. The U.S. Army Corps of Engineers' commanding officer has endorsed a $778 million plan for upgrading a lock-and-dam complex near Chicago to prevent Asian carp from invading the Great Lakes. Lt. Gen. Todd Semonite signed the final report Thursday, May 23, 2019. It now goes to Congress, which would need to give authorization and funding for the project to proceed. (AP Photo/John Flesher, File)
May 25, 2019 - 11:10 am
It involves a gantlet of technologies intended to repel approaching fish.
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