Crayfish traps were deployed in the suspect pond, leading to the capture of the invasive crustacean. Red Swamp Crayfish being collected in a retaining pond off Hagadorn Road in Novi, MI, August 2022.

While the source of the adult red swamp crayfish in Pond 20 is still unknown, Michigan’s Invasive Species Program staff is exploring several possibilities, including a known population 15 miles ...

Populations of red swamp crayfish were first detected in Michigan in 2017, with simultaneous discoveries in Sunset Lake in Kalamazoo and a drainage pond in Pontiac, the DNR said.

Populations of red swamp crayfish were first detected in Michigan in 2017, with simultaneous discoveries in Sunset Lake in Kalamazoo and a drainage pond in Pontiac, the DNR said.

It's been banned in Michigan since 2014. Red swamp crayfish, also known as Louisiana crayfish, are about 2 to 7 inches in length. They have an hourglass shape, along with claws that are typically red.

Red swamp crayfish are an aggressive invasive species native to the south-central U.S. They were discovered in Michigan in 2017, and environmental agencies have been trying to eradicate them since.

The red swamp crayfish — also known as crawfish or crawdads — comes from the Gulf Coastal Plain region which includes the southern United States and northern Mexico. Growing up to 12 ...

While the source of the adult red swamp crayfish in Pond 20 is still unknown, Michigan’s Invasive Species Program staff is exploring several possibilities, including a known population 15 miles ...

Populations of red swamp crayfish were first detected in Michigan in 2017, with simultaneous discoveries in Sunset Lake in Kalamazoo and a drainage pond in Pontiac, the DNR said.