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About the ICC

Invasive Crayfish Collaboration

Photographer: MN Sea Grant
The Invasive Crayfish Collaborative (ICC) brings industry, science, and land management stakeholders together to improve the management of invasive crayfish in the Great Lakes Region. It is convened and facilitated by Illinois-Indiana Sea Grant and the Illinois Natural History Survey with funding from the Great Lakes Restoration Initiative.

What’s New

Mechanical male sterilisation in invasive signal crayfish Pacifastacus leniusculus: persistence and functionality in captive and wild conditions

Green, N., Andreou, D., Bentley, M., Stebbing, P., Hart, A., & Britton, J. R. (2022). Mechanical male sterilisation in invasive signal crayfish Pacifastacus leniusculus: Persistence and functionality in captive and wild conditions. Knowledge and Management of Aquatic Ecosystems, (423). https://doi.org/10.1051/kmae/2022014 

Personality-dependent passage behaviour of an aquatic invasive species at a barrier to dispersal

Daniels, J. A., & Kemp, P. S. (2022). Personality-dependent passage behaviour of an aquatic invasive species at a barrier to dispersal. Animal Behaviour, 192, 63-74. https://doi.org/10.1016/j.anbehav.2022.07.005 

Trophic niche of an invasive generalist consumer: Australian redclaw crayfish, Cherax quadricarinatus, in the Inkomati River Basin, South Africa

Zengeya, T. A., Lombard, R. J.-H., Nelwamondo, V. E., Nunes, A. L., Measey, J. and Weyl, O. L. (2022). Trophic niche of an invasive generalist consumer: Australian redclaw crayfish, Cherax quadricarinatus, in the Inkomati River Basin, South Africa. Austral Ecology. https://doi.org/10.1111/aec.13230

Invasive Australian Redclaw Crayfish Present in Texas

Researchers from the University of Texas Rio Grande Valley recently collected invasive Australian Redclaw Crayfish (Cherax quadricarinatus) at the first known site in Texas. From January–February, three specimens were collected at an apartment complex pond that connects to a nearby resaca in the Brownsville area.

Northern crayfish continues its Alberta invasion, this time, in mountain parks

Parks Canada captured the crayfish on Aug. 6 in Banff National Park.

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