The crayfish likely entered the hatchery through contaminated water or released pets. The DNR is working to contain the infestation and monitor nearby lakes. Red swamp crayfish are prohibited in ...

The red-swamp crayfish Procambarus clarkii is a highly invasive species native to American freshwaters but has also invaded many freshwater ecosystems around the world. Now, researchers conducted a ...

They’re red, have pincers that can draw blood and are quickly taking over a handful of Michigan ponds. The red swamp crayfish are in Michigan, and the fear is that they could be here to stay. Known in ...

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