1. Illinois River Biological Station, Illinois Natural History Survey, University of Illinois Urbana-Champaign, Havana, IL, USA
2. Western Illinois University, Macomb, IL, USA
3. Biological Sciences Department, Eastern Illinois University, Charleston, IL, USA
4. Illinois Department of Natural Resources, Alton Field Office, Alton, IL, USA
5. Minnesota Department of Natural Resources, Lake City, MN, USA
6. Great Rivers Field Station, Illinois Natural History Survey, University of Illinois Urbana-Champaign, Alton, IL, USA
7. Center for Fisheries, Aquaculture, and Aquatic Sciences, Southern Illinois University, Carbondale, IL, USA