Aquatic Invertebrates - invasive

Ringed Crayfish (Orconectes neglectus) on May 7, 2019

Submitter does not have a specimen

Description of specimen

ringed crayfish (with orange and black bands on the claws) found on 6/21/18

Commentary

Thank you for your report! Ringed crayfish are known from this area, and are unfortunately spreading in SW OR. Your sighting will contribute to keeping our distribution information up to date. Never move crayfish from one area to another. You can learn more about Oregon's crayfish from ODFW: https://www.dfw.state.or.us/conservationstrategy/invasive_species/crayfish.asp
Thank you,
Lindsey

Lindsey Wise
Aug. 11, 2021, 3 a.m.

Remedy

Never move live crayfish from one area to another.

Resources

First discovered in Oregon during the 1960s in the Rogue River. Possible introduction paths include anglers using crayfish as live bait, classroom experiments and releases by pet owners. Learn more from Oregon Dept of Fish and Wildlife.

Location

Umpqua River - 2/3 mile downstream from the James Wood boat ramp on the Umpqua River (43 deg. 24'29"N 123 deg 32'56" W)

Expert Reviewer

Mrs. Lindsey Wise
Oregon Biodiversity Information Center, inr.oregonstate.edu/orbic
Oregon iMapInvasives
Institute for Natural Resources
Portland State University

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