TRAVERSE CITY, Mich. – The U.S. Army Corps of Engineers announced a revised schedule Friday for developing a plan to prevent Asian carp from reaching the Great Lakes, but members of Congress said it falls short of a deadline set by a recently enacted law.

The corps' regional office in Chicago said it would release a report in late 2013 with options for blocking potential pathways between the lakes and the Mississippi River basin for the voracious carp and other invasive species that can disrupt ecosystems and cause huge economic losses.

It will include extensive information about each alternative, such as engineering designs, cost estimates and assessments of how they would affect the environment, said Jack Drolet, program manager for the Corps study.