![Asian carp jumping from the Illinois River near Havana Illinois.](https://will.illinois.edu/images/uploads/54367/ap_120614166581__medium.jpg)
Study: Pollution In Rivers Leading To Lake Michigan May Repel Asian Carp
An electric barrier in a Chicago area canal is meant to keep Asian carp from getting into the Great Lakes from downstate rivers. Now, a study led by University of Illinois researchers suggests another force may be keeping the invasive carp from making the trip: pollution.