http://www.usatoday.com/news/nation/...ian-carp_N.htm

Fish and wildlife officials will poison a 6-mile stretch of water near Chicago on Wednesday in a last-ditch effort to keep one of the most dangerous invasive species of fish, the Asian carp, out of the Great Lakes.

The poisoning will kill an estimated 100 tons of fish, which will be removed by crane and hauled to a landfill. The five-day fish kill will provide time for the Army Corps of Engineers to perform routine maintenance on an electrical barrier that has been placed in the canal to block Asian carp from entering Lake Michigan.