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Chicago Sun-Times
Chicago Sun-Times
National
Dale Bowman

Walleye, yellow bullhead and changes/challenges of the Chicago Area Waterway System

Chicago Dale Bowman Fish the Chicago River
The Chicago River provides more than views of a world-famous skyline—the Willis Tower as viewed from the South Branch—as fish species rebound as water quality improves. (Dale Bowman)

The question isn’t whether more fish and species live in the Chicago Area Waterway System (CAWS) since the Clean Water Act, but are they getting bigger?

The simple answer is a qualified yes from Shedd Aquarium research biologist Austin Happel, Ph.D., and U.S. Army Corps of Engineers project manager Patrick Kennedy.

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