Aquatic Invasive Species
Aquatic invasive species (AIS) negatively impact both our economy and the environment. These non-native plants, animals, and pathogens can be introduced and spread through a variety of activities including those associated with boaters, anglers, water gardeners, aquarium hobbyists, and K-12 educators. IISG works with these groups to provide the tools they need to prevent the introduction and spread of these harmful organisms.
Programs & Initiatives
Be a Hero–Release Zero
Many of the plants and animals available for sale as pets or bait or for use in gardens can negatively impact ecosystems, economies, and public health when introduced to new habitats. These species can be spread—both accidentally and on purpose—in a variety of ways. Consumers and retailers can “Be a Hero” and help prevent the introduction and spread of harmful aquatic invaders through proper handling and disposal of aquatic plants, animals and the water they are kept in.
See MoreBe A Hero—Transport Zero
Invasive species—non-native plants, animals, or pathogens that cause harm to natural areas—impact both our economy and the environment. Their environmental impacts can affect outdoor activities such as fishing, hiking, and birding. You can help prevent these impacts—”Be A Hero” and join the more than 90 percent of outdoor enthusiasts in Illinois who are already fighting the spread of invaders.
See MoreInvasive Crayfish Collaborative
Invasive crayfish pose a substantial threat to aquatic habitats in the Great Lakes region because of their ability to reduce habitat quality and dramatically alter aquatic food webs. Preventing the introduction and spread of invasive crayfish requires collaboration between researchers, natural resource managers, and other partners to develop effective management solutions. Illinois-Indiana Sea Grant facilitates the Invasive Crayfish Collaborative to bring together crayfish biologists, managers, and other interested partners to improve collective management and outreach capabilities in the Great Lakes region.
See MorePublications
- Ripple Effects: The Impact of Aquatic Invasive Species in the Great Lakes
- Fish Muscle Hydrolysate
- Investigating Crayfish and Freshwater Ecosystems
- Invasive Crayfish Collaborative Five-Year Strategic Plan to Advance the Management of Invasive Crayfish
- Retailer Perspectives on Invasive Crayfish in the Great Lakes
Related News
- Chicago Comic Con proves a great venue for sharing Lake Michigan science
- Sea Grant Chats: Looking back on our AIS legacy as we move forward
- Ripple Effects curriculum engages students on the spread of aquatic invasive species
- We’re hiring eight interns for summer 2026
- IISG looks back on 30 years of AIS outreach
Research Projects
Illinois-Indiana Sea Grant funds original research projects that support and complement our education and outreach activities. The link below will take you the Aquatic Invasive Species section of our funded research database, where you will find project descriptions, contact information, and final reports and publications.
See All Related Research & Projects