Most days, researcher Stefan Tucker, with trawls, trammel nets, trot lines and even electrofishing gear, is on his boat looking for sturgeon in the Rock River. The nearly 300-mile waterway winds through Illinois’ northwest corner, at depths between 15 to 50 feet, flowing and gurgling from Wisconsin down to the Iowa border, where it joins … Continue reading Some Shovelnose Sturgeon in Illinois Are Huge and Researchers Are Fishing for Reasons Why