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Aug 23, 2010 3:23 PM by Bea Karnes, News First 5

Great Lakes reach 'biological tipping point'

Michigan assistant attorney general Robert Reichel says the threat of Asian carp to the Great Lakes has reached a "biological tipping point" and the waterways leading into Lake Michigan have become a "carp highway."

The comments came Monday during the first hearing in a multi-state lawsuit demanding tougher action to prevent Asian carp from overrunning the Great Lakes.

Michigan, Wisconsin, Ohio, Minnesota and Pennsylvania want to close locks and install barriers to stop the voracious fish. U.S. Department of Justice attorney Maureen Rudolph says Congress has given the U.S. Army Corps of Engineers discretion in how to deal with the problem.

A federal judge has set Sept. 7 as the next hearing in the case.

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