Activities associated with the purchase, sale, and use of commercially available organisms or “organisms-in-trade” can potentially result in the introduction of aquatic invasive species (AIS) to waterways such as the Great Lakes. Preventing these introductions is a much more cost-effective way to protect waterways, as opposed to the cost and effort involved in controlling or managing them once they become established.
 
Building on a University of Notre Dame-led project to examine the environmental risks posed by certain “organisms in trade” (OIT), Illinois-Indiana Sea Grant has been awarded grant funding through the Great Lakes Restoration Initiative (GLRI) for a project titled “GLSGN OIT Initiative – Expanding Risk Assessment Outreach.”
By creating an opportunity to remove these potentially invasive species from circulation, risk assessment is one way to prevent non-native species from becoming invasive. Risk assessment information is also important to AIS education, because studies have shown that education and outreach encourage and shape the behavioral changes necessary for preventing species introduction. For example, horticulturists decided against purchasing a given species once they learned it had the potential to become an invasive species.
 
This new GLRI grant provides for the creation of new risk assessment and OIT outreach tools including webinars, a training video, non-technical summaries of state laws and regulations, and publications for people involved with fish, reptile, and amphibian commerce. Development of these tools will be guided by a survey that assesses the needs and preferences of OIT user groups. The goal of all these efforts is to reduce the introduction of potentially invasive species, thereby helping to protect and preserve waterways from invasive threats.
 
This initiative, a collaboration among the Great Lakes Sea Grant Network, North Carolina State University (NCSU), the National Sea Grant Law Center at the University of Mississippi School of Law (NSGLC), and IISG, will also help educate and inform the public about alternatives to high-risk aquarium, water garden, bait, live food, and classroom species.
 

For more information, visit our webpage about aquatic invasive species. 

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🌊 Save the Date! 🌊Shipboard Science Immersion 2026Join the Center for Great Lakes Literacy aboard the R/V Lake Guardian on Lake Superior, July 7–14, 2026!✅ Open to formal & nonformal educators (grades 5–12) across the Great Lakes region.📅 Applications open January 2026Learn more: https://cgll.org/signature-program/r-v-lake-guardian-shipboard-science-immersion/ or the link in bio.#TeachingTuesday
Join the Invasive Crayfish Collaborative for an exciting webinar featuring Dr. Chris Taylor from the Illinois Natural History Survey who will provide an overview of midwestern crayfish habitat requirements, feeding, reproductive biology, and life-history.Crayfishes in the Midwest occupy almost every type of aquatic and semi-aquatic habitat in the region. They function as critically important components of those ecosystems and in many cases represent a majority of invertebrate biomass. As “keystone” species, understanding their biology and roles in ecosystems is critically important. Register for the webinar at InvasiveCrayfish.org/events1 Or the link in bio.
This season, let’s teach eco-friendly habits while spreading cheer! NOAA’s Greener Holiday Gift Guide is full of ideas to reduce waste and protect our precious water resources. Check out the full guide at the link in bio. #teachingtuesdayNOAA Marine Debris NOAA Education
The gales of November may come early, but, as usual, the nominations for the Lakies are right on time along with our official call for nominations! Brought to you by the Teach Me About the Great Lakes podcast, The Lakies (aka "quite possibly not the least prestigious Great Lakes-focused awards ceremony there is”) are back. Our goal isn't to be the Official Arbiters of Quality, but to host a fun celebration of amazing Great Lakes-related research, outreach, and communication in the inimitable Teach Me style.Nomination categories are:-Great Lakes Science Communication of the Year-Great Lakes Outreach Program of the Year-Great Lakes News Event of the Year-Great Lakes Research Finding of the Year-Coolest Thing You Learned Listening to TMATGL in 2025-Science Podcast of the Year (Non-TMATGL edition)-Great Lakes Animal of the Year-Great Lakes Non-Animal of the Year-Great Lakes Sandwich of the Year-Great Lakes Donut of the YearThe Details: -Deadline: Nominations close on December 4th.Process: It's easy (just enter the name/title and a link).-Self-Nominations: Highly encouraged. Don't be shy.We’d love to get a broad swath of work across both the serious and less-serious categories to celebrate. Feel free to pass the link on to interested people: https://bit.ly/Lakies25