Over 180 non-native species have been introduced into the Great Lakes region. Some of these species such as the zebra mussel, Eurasian watermilfoil and silver carp have flourished and negatively impacted both our environment and economy. Even more aquatic invasive species (AIS) such as these lurk on the horizon as threats to Lake Michigan and the inland waters of both Illinois and Indiana.

AIS can be introduced and spread through a variety of activities including those associated with recreational water users, water gardeners, aquarium hobbyists, and nursery tradespeople. For example, when an angler releases bait fish at the end of a day’s fishing or a water gardener disposes of excess plants in a local waterway, they could also be accidentally introducing AIS. IISG works with these groups to provide the tools they need to avoid AIS-risky behaviors.



Pat Charlebois
Aquatic Invasive Species Coordinator

Danielle Hilbrich
Aquatic Invasive Species Outreach Educator

Greg Hitzroth
Aquatic Invasive Species Outreach Specialist

Illinois-Indiana Sea Grant College Program
University of Illinois
1101 W. Peabody Drive
374 National Soybean Research Center, MC-635
Urbana, IL 61801
Ph: 217.333.6444 | Fax: 217.333.8046
University of Illinois Extensio
Sea Grant
Purdue University