The Obama administration will spend about $50 million this year on protecting the Great Lakes from greedy Asian carp, including first-time testing to see if the fish have reached Lakes Michigan and Erie.
Federal officials tell The Associated Press the government has updated its strategy for battling bighead and silver carp that have infested the Mississippi River watershed and are closing in on the Great Lakes.
Scientists say if the carp take hold in the lakes, they could threaten the $7 billion fishing industry by gobbling up plankton at the base of the food web.
Among new initiatives will be searching southern Lake Michigan and western Lake Erie for signs of carp DNA.
Also planned is stepped-up trapping and netting to remove Asian carp from tributary rivers.