This brochure describes the importance of native crayfish and the impacts of invasive crayfish. It provides audiences such as aquarium hobbyists, teachers, anglers and cooks with information to help them responsibly purchase and contain crayfish to prevent the spread of invasive species.

Alternative Versions

Ta publikacja jest dostępna w języku polskim na ALE CHWYT! Jak odizolowoć hodowanego raka i chronić środowisko przyrodnicze.

该出版物的中文版可在以下网址获取 举手之劳！如何“围堵”淡水龙虾 及保护自然区域

Publicacion en español está ¡ES FACILÍSIMO! Cómo contener a su cangrejo de río y protegerlas áreas naturales.

ADA Compliance Information

Some linked publications may not fully meet current ADA accessibility standards and are provided for historical and archival purposes. If you need a plain-text screen or reader-friendly version of any document on our website, please contact us and we will do our best to provide one.

The use of live crayfish in classrooms has been identified as a pathway for the introduction of invasive crayfish into our local waterways. To address this issue, the Investigating Crayfish and Freshwater Ecosystems curriculum was developed to teach students about Great Lakes ecosystems, the significance of native crayfish, and the ecological threats posed by invasive crayfish. It contains nine lesson plans aligned to Next Generation Science Standards, Common Core State Standards, and Center for Great Lakes Literacy Principles. The curriculum is best suited for students in grades 6-12 but offers numerous adaptations/extensions to meet the divergent needs of students in grades 2–5.

This document is available on the Invasive Crayfish Collaborative website: https://invasivecrayfish.org/crayfish-curriculum/

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 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

ADA Compliance Information

Some linked publications may not fully meet current ADA accessibility standards and are provided for historical and archival purposes. If you need a plain-text screen or reader-friendly version of any document on our website, please contact us and we will do our best to provide one.

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

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Some linked publications may not fully meet current ADA accessibility standards and are provided for historical and archival purposes. If you need a plain-text screen or reader-friendly version of any document on our website, please contact us and we will do our best to provide one.

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

ADA Compliance Information

Some linked publications may not fully meet current ADA accessibility standards and are provided for historical and archival purposes. If you need a plain-text screen or reader-friendly version of any document on our website, please contact us and we will do our best to provide one.

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 overview introduces a novel method for producing high-quality protein for larval fish diets, targeting feed and ingredient manufacturers. It outlines the challenges of indoor fish rearing using recirculating aquaculture systems (RAS), particularly the difficulty larvae have digesting traditional dry feeds. The proposed solution uses protein hydrolysates—pre-digested proteins made more accessible through hydrolysis with species-specific digestive enzymes. This approach improves nutrient absorption and growth performance. Notably, the method uses invasive fish species as a sustainable protein source and applies enzymes from the target species for precise, efficient hydrolysis.

Information poster about the importance of not dumping bait to prevent aquatic invasive species spread.

Alternative Versions

Ta publikacja jest dostępna w języku polskim na NIE WYRZUCAJ PRZYNĘTY BYLE GDZIE.

该出版物的中文版可在以下网址获取 不要丢弃饵料

Publicacion en español está NO ARROJE EL CEBO AQUÍ.

ADA Compliance Information

Some linked publications may not fully meet current ADA accessibility standards and are provided for historical and archival purposes. If you need a plain-text screen or reader-friendly version of any document on our website, please contact us and we will do our best to provide one.