_Navigational locks and gates in Chicago-area waterways crucial for shipping may be opened less frequently than usual under a $78.5 million campaign to prevent Asian carp from overrunning the Great Lakes, federal officials said Monday.
The plan falls short of closing the navigational structures entirely, as demanded by Michigan and five other Great Lakes states. They fear the locks will provide an opening to the lakes for the giant carp, which some scientists say could devastate the region’s $7 billion fishing industry.
But the Obama administration described the plan as part of an effective strategy for keeping the invasive fish at bay while long-term biological controls are developed. The government said it would take 25 actions to slow the advance of the carp, which can reach 4 feet long and 100 pounds._