A crew member pulls a fish from the Chicago Sanitary and Ship Canal as they search for Asian carp Thursday, Dec. 3, 2009 in Lockport, Ill. A toxic chemical was dumped on a nearly 6-mile stretch of the canal as part of state and federal efforts to keep the voracious and invasive carp from reaching the Great Lakes. (AP Photo/M. Spencer Green)
(AP) -- No Asian carp have been spotted so far in a Chicago canal during a massive fish kill aimed at trying to keep the giant fish out of the Great Lakes.
Environmental officials say that's good news that may suggest the voracious fish hasn't reached Lake Michigan yet.
But they warned Thursday that it's too soon to declare victory against the carp. They fear the fish could starve out smaller competitors if it reaches the Great Lakes.
Tens of thousands of other fish floated to the surface of the Chicago Sanitary and Ship Canal on Thursday after 2,000 gallons of toxins were dumped into the waterway. Officials dumped the toxin while an electrical barrier meant to keep the carp from Lake Michigan was turned off for maintenance.
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