Chicago Sanitary And Ship Canal POISONED To Block Feared Asian Carp

03/18/2010 05:12 am ET | Updated May 25, 2011

LOCKPORT, Ill. — Environmental officials say they have found a single Asian carp in a canal leading to Lake Michigan – the closest any of the giant fish have come to the Great Lakes.

Environmentalists fear the Asian carp could starve out other fish and devastate the $7 billion-a-year Great Lakes fishing industry.

Department of Natural Resources assistant director John Rogner says the single fish was found Thursday among tens of thousands of other species scooped up during a kill operation in the Chicago Sanitary and Ship Canal.

Authorities dumped a toxin into the canal Wednesday to eliminate any carp while an electrical barrier designed to keep them out of the Great Lakes was turned off for maintenance.