ICC Monthly Snap: February 2025
IISG ICC
ICC Monthly Snap | February 2025
Dear Invasive Crayfish Collaborators,
Welcome to the February edition of the Monthly Snap! Explore this month’s roundup of crayfish literature and news below.
Literature
Evaluating the Effectiveness of Sodium Hypochlorite for Genomic DNA Decontamination
de Silva Wijeyeratne, A. & Gweon, H. S. (2025). Evaluating the Effectiveness of Sodium Hypochlorite for Genomic DNA Decontamination. Environmental DNA, 7, e70057. doi.org/10.1002/edn3.70057
Assessing Climate Vulnerability & Adaptive Capacity of Midwest Species of Greatest Conservation Need
Earl, D. J., Branch, E. C., Cole-Wick, A. A., Lee, Y. M., Rowe, L. M., Badra, P. J., Wilton, C. M., Cuthrell, D. L & Sexton, N. H. (2024). Assessing Climate Vulnerability & Adaptive Capacity of Midwest Species of Greatest Conservation Need. Michigan Natural Features Inventory, Report No. 2024-37, Lansing, MI. Link to PDF
Experimental biology of species range dynamics: drivers of survival and dispersal in range-core and range-edge invasive crayfish
Edeline, E., Starck, A., Bennevault, Y., Paillisson, J. & Petit, E. J. (2025). Experimental biology of species range dynamics: drivers of survival and dispersal in range-core and range-edge invasive crayfish. Biological Invasions, 27 (65). doi.org/10.1007/s10530-025-03530-7
Does Crayfish Molting Affect Environmental DNA Detectability?
Garcia, S. M., Curtis, A. N., Hartman, J. H., Reinhofer, J. P., Sawyer, E. K. & Larson, E. R. (2024). Does Crayfish Molting Affect Environmental DNA Detectability? Freshwater Crayfish, 29(1), 37–47. doi.org/10.5869/fc.2024.v29-1.37
Contrasting Effects of Increasing Invasive Crayfish Densities on Competing Submerged Macrophytes in Shallow Lakes
Li, L., Hilt, S. & Ding, M. (2025). Contrasting Effects of Increasing Invasive Crayfish Densities on Competing Submerged Macrophytes in Shallow Lakes. Freshwater Biology, 70, e14383. doi.org/10.1111/fwb.14383
Improving trapping effectiveness for controlling the red swamp crayfish Procambarus clarkii
Morbidelli, M., Melone, B., Forni, S., Orlando, M., Rossi, A., Cananzi, G., Capitani, A.,Petroni, G. & Tricarico, E. (2025). Improving trapping effectiveness for controlling the red swamp crayfish Procambarus clarkii. Management of Biological Invasions, 16(1): 295–311. doi.org/10.3391/mbi.2025.16.1.17
Prevalence and diversity of Aphanomyces astaci in cambarid crayfish of Pennsylvania: where native and introduced hosts meet
Petrusek, A., Mojzisova, M., Mikesova, A., Pialkova, R. & Lieb, D. A. (2025). Prevalence and diversity of Aphanomyces astaci in cambarid crayfish of Pennsylvania: where native and introduced hosts meet. Parasitology, 1–14. doi.org/10.1017/S0031182025000022
News
Proposed ban on invasive freshwater species to protect ecosystems
The U.S. Fish and Wildlife Service has proposed listing certain invasive freshwater mussels and the marbled crayfish as injurious wildlife, prohibiting their importation and interstate transport.
Brightly colored creature—kept in pet aquariums globally—discovered as new species
Researchers in the Czech Republic discovered a new species of crayfish—Cherax pulverulentus, or the dusty crayfish. The species was found in a shipment of Indonesian crayfish purchased in 2023.
Manitoba on track to ban live bait for fishing by 2027
The Manitoba Fisheries Branch will allow live bait for another two years on several lakes and rivers, like Lake Winnipeg, but it is on schedule to ban the practice entirely in a little more than two years.
Crayfish company creates crustacean gin
The Kennet Crayfish Company in Berkshire, England, created a unique gin using signal crayfish claw shells. This innovative product aims to help manage invasive populations.
Caribou Lake Property Owners Association seeks tax increase to cover rusty crayfish management
The Caribou Lake Property Owners Association in Minnesota proposed a tax increase to fund the management of invasive rusty crayfish. The funds would support partnerships and volunteer harvesting to reduce their population.
Participate in graduate research on crayfish use in classrooms
Izzy Paulsen, master's student at Purdue University, is conducting research on the motivations of teachers using live crayfish in classrooms. She is interviewing science teachers (grades 3-12) who have used live crayfish in their classes. To participate in these interviews, please complete the interest form found in the link above.
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.
© 2025 Illinois-Indiana Sea Grant // EA/EOU