Michigan files Supreme Court suit over Asian carp

By ED WHITE and JOHN FLESHER, Associated Press Writers

DETROIT, Dec. 21, 2009 (AP): Michigan is asking the U.S. Supreme Court to order closure of shipping locks near Chicago to prevent Asian carp from invading the Great Lakes.

Bighead and silver carp from Asia have been migrating northward in the Mississippi and Illinois rivers for decades. They have been detected in canals and rivers south of Chicago that open into Lake Michigan.

Officials poisoned a section of the Chicago Sanitary and Ship Canal this month to prevent the carp from getting closer to Lake Michigan while an electrical barrier was taken down for maintenance.