Study: No high-risk Great Lakes Asian carp paths

TRAVERSE CITY, Mich. (AP) — A study of 18 canals, ditches and other waterways that could link the Great Lakes and Mississippi River watersheds found none were likely pathways to the lakes for Asian carp, federal officials said Friday.

The U.S. Army Corps of Engineers assessed the sites as part of a broader search for ways to stop the flood of invasive species between the two giant drainage basins. Of particular concern are bighead and silver carp — ravenous Asian fish scientists say could out-compete native species for food.