Aquatic Invertebrates - invasive

Red Swamp Crayfish (Procambarus clarkii) on May 17, 2025

Submitter does not have a specimen

Description of specimen

Dark red, big claws, slow moving but going somewhere. Alone.

Commentary

None

Remedy

Red Swamp Crayfish is an Oregon Dept. of Fish and Wildlife Prohibited Species, meaning they "may not be imported, possessed, sold, purchased, exchanged or transported in the state".

Resources

Picture guide to crayfish in Oregon; Crayfish information from SeaGrant; and ODFW Red Swamp Crayfish fact sheet.

Location

In the wetlands. A couple twenty feet off the trail.

Expert Reviewer

Keith DeHart
Oregon Department of Fish & Wildlife

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