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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 by becoming a hero and joining the more than 90% of outdoor enthusiasts in Illinois who are already fighting the spread of invaders.

For more detailed information, visit Be a Hero!

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The Southern Lake Michigan Rain Garden Manual Thumbnail
File Type: pdf
File Size: 2.98 MB
Year: 2014

This manual was developed for those interested in protecting rivers and lakes through the usage of rain gardens. The manual will benefit the homeowners, landscape architects and city planners.

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Aquatic Invaders in the Marketplace Thumbnail

Year: 2016

This website provides you with the information and tools needed to help prevent the spread of aquatic invasive species commonly found in trade. Water gardeners, aquarium hobbyists, retailers, anglers, teachers, wholesalers, and more can use these resources to learn about invasive species and identify alternative organisms that are safe to buy and sell.

For more detailed information, visit Aquatic Invaders in the Marketplace


Invasive Crayfish Collaborative Thumbnail

Year: 2018

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. Currently, efforts to prevent the introduction and spread of invasive crayfish consist largely of reducing the size of existing populations and encouraging people to refrain from releasing crayfish into new bodies of water. The ICC focuses on improving upon our collective management and outreach capabilities.

For more detailed information, visit Invasive Crayfish Collaborative


Illinois Conservation Police Officer Tool Thumbnail
File Type: pdf
File Size: 1.62 MB
Year: 2021

This is a wallet card-sized brochure that will be distributed to boaters and anglers by Illinois Conservation Police Officers. The brochure contains Illinois’ aquatic invasive species laws and additional recommended actions these audiences can take to prevent the spread of invasive species.

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Retailer Perspectives on Invasive Crayfish in the Great Lakes Thumbnail
File Type: pdf
File Size: 2.21 MB
Year: 2024

Invasive crayfish represent an ongoing threat to aquatic ecosystems in the Laurentian Great Lakes region, and one of the major pathways of introduction is through the sale of live organisms to consumers (i.e., organism-in-trade pathways). This study investigated the live trade of crayfish in the Great Lakes region through a survey of crayfish retailers to understand sale and utilization of crayfish, as well as retailer sentiments about conservation and environmental stewardship. A database of 617 retailers across eight Great Lakes states was compiled and 123 retailers were contacted for the survey. Sixteen retailers who sold crayfish through the aquarium and bait trades completed the survey. Findings revealed that retailers rely on their wholesalers for information about crayfish, signaling a critical need for increased outreach efforts directed towards these suppliers. Moreover, retailers expressed a need for clear and consistent communication regarding regulatory changes. The results underscore the importance of effective communication and education within the crayfish supply chain to mitigate the risk of future invasive crayfish introductions in the Great Lakes region.

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