ICC Monthly Snap: July 2026
Invasive Crayfish Collaborative
ICC Monthly Snap | July 2026
Welcome to the July edition of the Monthly Snap! We hope everyone is staying cool this summer, especially those spending long days out in the field. As always, you’ll find the regular collection of crayfish literature and news below.
Literature
A multi-method approach to assessing barrier effectiveness in preventing the spread of invasive Signal Crayfish (Pacifastacus leniusculus)
Harwood, M., Bray, A. W., Woolfenden, K. A., Stebbing, P. D., Dunn, A. M., & South, J. (2026). A multi-method approach to assessing barrier effectiveness in preventing the spread of invasive Signal Crayfish (Pacifastacus leniusculus). River Research and Applications. PDF Link
Toxicity of a Pyrethrum Pesticide to Invasive Crayfish
Nelson, R. G., Allert, A. L., Whites, D. W., Quebedeaux, K., Wright, B., & Cupp, A. R. (2026). Toxicity of a Pyrethrum Pesticide to Invasive Crayfish. U.S. Geological Survey data release. doi.org/10.5066/P13SRVYC
First record of the non indigenous crayfish, Procambarus virginalis Lyko, 2017, in Nova Scotia, Canada
Poirier, L. A., Pratt, C. J., Hope, E., Kingsbury, S., McAlpine, D. F., LeBlanc, F., & Burbidge, C. (2026). First record of the non indigenous crayfish, Procambarus virginalis Lyko, 2017, in Nova Scotia, Canada. BioInvasions Records, 15(2), 393–402. doi.org/10.3391/bir.2026.15.2.14
The impact of acidification on resource competition between native (Faxonius virilis) and non-native (Faxonius rusticus) crayfish
Van Dyke, M. L. and Moore, P. A. (2026). The impact of acidification on resource competition between native (Faxonius virilis) and non-native (Faxonius rusticus) crayfish. Hydrobiologia. doi.org/10.1007/s10750-026-06262-4
News
Credit Valley Conservation has launched Ontario’s first Conservation Detection Dog program to improve early detection of invasive species. The program features Tilly, a trained Labrador Retriever that can detect red swamp crayfish, spotted lanternfly, and hemlock woolly adelgid.
The 2026 State of Lake Michigan Meeting is now accepting abstracts
Researchers working on aquatic invasive species in and around Lake Michigan are encouraged to submit abstracts for the Aquatic Invasive Species session at the upcoming State of Lake Michigan meeting. The meeting will be held November 4–6 in Michigan City, IN. Abstracts are due July 13 by 1 PM ET.
Have a publication, event, or funding opportunity that you’d like us to share? Submit your announcements here and we’ll include it in our newsletter next month.
This selection of invasive crayfish information is collected by the Invasive Crayfish Collaborative, a program convened and facilitated by Illinois-Indiana Sea Grant and the Illinois Natural History Survey with funding from the Great Lakes Restoration Initiative.
© 2026 Illinois-Indiana Sea Grant // EA/EOU