Invasive crayfish pose a significant and ongoing threat to aquatic ecosystems in the Laurentian Great Lakes (GL) region. Coordination and communication among crayfish stakeholders are crucial for effective management. The Invasive Crayfish Collaborative (ICC) brings industry, science, and land management stakeholders together to enhance the management of invasive crayfish in the GL. To systematically guide the direction of the ICC and help facilitate the coordination of research, collaboration, and outreach, a five-year strategic plan was developed. This plan, informed by data from ICC surveys, workshops, and external feedback, outlines priority projects designed to equip stakeholders and partners with the necessary resources to effectively tackle the challenges presented by invasive crayfish. This plan plays a key role in highlighting the collective vision for crayfish management and ultimately contributes to the protection of native species and preservation of our aquatic ecosystems.

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.

The role of the Cooperative Science and Monitoring Initiative (CSMI) is to direct enhanced monitoring and research activities across each of the Laurentian Great Lakes to provide relevant information to address the science priorities of each Lake Partnership (established under the Lakewide Management Annex of the 2012 Great Lakes Water Quality Agreement). CSMI is an intensive effort to collect information on the health of one Great Lake each year, cycling through the lakes on a five-year period. In 2020/2021, it was Lake Michigan’s turn (over a two-year period due to COVID). This is an executive summary of the 2020/2021 research results and the associated white paper containing more specific information.

This is an annual summary of Illinois-Indiana Sea Grant success stories.

Flip through the magazine: https://issuu.com/iiseagrant/docs/thehelm-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.

This publication brings together program impacts from the 2018-2019 Sea Grant year.

The role of the Cooperative Science and Monitoring Initiative (CSMI) is to provide enhanced monitoring and research activities that provide relevant information to address the science priorities of the Lake Partnerships (established under the Lakewide Management Annex of the 2012 Great Lakes Water Quality Agreement) across the Laurentian Great Lakes. The Lake Michigan Partnership, a collaborative team of natural resource managers led by the U.S. Environmental Protection Agency with participation from federal, state, tribal, and local governments or agencies, uses the information collected through CSMI to help develop long term ecosystem-based management strategies for protecting and restoring Lake Michigan’s water quality. On a practical level, CSMI is an intensive effort to collect information on the health of each lake, rotating to one Great Lake each year. In 2015, it was Lake Michigan’s turn. This is an executive summary of the 2015 research results and the associated white paper containing more specific information.

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

This booklet describes some of Illinois-Indiana Sea Grant’s success stories from 2017.