Specimen Information

Faxonius neglectus neglectus
Faxonius neglectus neglectus
(Ringed crayfish)
Native Transplant

Specimen ID1414734
Common NameRinged crayfish
LocalityGalesville Reservoir
Mapping AccuracyApproximate
HUC8 NameSouth Umpqua
HUC8 Number17100302
Collection Day24
Collection Month3
Collection Year2001
Year AccuracyActual
Potential Pathwayreleased bait
CommentsOregon Department of Fish and Wildlife sampled stomach contents from 33 largemouth and 3 smallmouth bass from Galesville Reservoir on March 24, 2001. These fish were caught by anglers from the Umpqua Valley Bassmasters club. Of these fish, all but one contained food, and 24 of the 35 containing food contained whole or parts of crayfish. Part way through the sampling I noticed that the crayfish were not typical Pacifasticus. They all had the black bands and orange tips on the chelipeds characteristic of the Ozark crayfish, Orconectes neglectus neglectus, I had observed in Emigrant Reservoir. All subsequent crayfish found in bass stomachs were of this species. If this identification is accurate I believe it is the first occurrence of the Ozark crayfish in Oregon outside of Emigrant Reservoir in the Rogue Basin and Little Hyatt Lake in the Klamath Basin. Galesville Reservoir is located on Cow Creek, a tributary to the South Umpqua River. I preserved some small specimens if any of you has the knowledge or keys to provide a positive identification.
Record TypePersonal communication


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Citation information: U.S. Geological Survey. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/8/2022].

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