Little attention has been paid to grass carp, a gluttonous herbivore that could decimate Great Lakes wetlands

Chicago has long been characterized as the last line of defense in the war to prevent bighead and silver carp from reaching the Great Lakes. But as efforts ramp up, another little-discussed species of Asian carp is already spawning in the region and could become the first to be established. Illinois and the U.S. Army Corps of Engineers have moved closer to constructing a channel,,, Unlike silver and bighead carp that scientists say would compete directly with Great Lakes fish for food, grass carp eat vegetation that provides vital habitat for the region’s waterfowl,,, Some Great Lakes states — Illinois, Indiana, Ohio, Pennsylvania and New York — still allow grass carp to be imported,  Video>click to read<11:11

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