"The U.S. Supreme Court on Tuesday rejected a request by the state of Michigan for an injunction to force the closing of two Chicago-area waterway locks to keep Asian carp from invading the Great Lakes.
The voracious Bighead and Silver carp are considered a dire threat to the lakes' $7 billion fisheries.
Michigan last month took the unusual step of asking the high court for an order that would close the two locks and would require authorities to take all other action necessary to keep the carp from entering the lakes.
Michigan asked that the U.S. Army Corps of Engineers, the state of Illinois and Chicago's sewer authority take more steps to block the carp during flooding and ultimately to separate the Great Lakes from the Mississippi River watershed."
James Vicini and Andrew Stern report for Reuters January 19, 2010.
"Asian Carp DNA Found in Lake Michigan" (Chicago Tribune)