Illinois Monitors Apparent Natural Silver Carp Die-Off in Illinois River

Illinois Monitors Apparent Natural Silver Carp Die-Off in Illinois River

SPRINGFIELD – Staff from the Illinois Department of Natural Resources (IDNR) are monitoring an extensive silver carp fish die-off in the Peoria pool of the Illinois River between roughly Henry and Peoria.IDNR fisheries biologists believe the incident is naturally occurring, caused by spawning stress and rapid water chemistry changes from recent rain. No evidence of chemical contamination or pollution was observed, and no native fish species or o…