Pacifastacus leniusculus
Pacifastacus leniusculus
(Signal Crayfish)
Crustaceans-Crayfish
Native Transplant
Collection Info
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Species Profile
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11 results for Pacifastacus leniusculus (Signal Crayfish)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1754345 IDBoiseMores Creek, 11.8 mi ENE Boise2017 17050112 Boise-Mores 
1754348 IDCanyonBoise River, 1.8 mi N Caldwell, near W Plymouth St.2017 17050114 Lower Boise 
1754347 IDGemPayette River, 9 mi ENE Emmett, Montour Road2017 17050122 Payette 
1754344 IDGemPayette River, bridge W of Idaho Boulevard2017 17050122 Payette 
1754349 NVElkoOwyhee River, 18.6 mi SE Owyhee, near confluence with North Wild Horse Creek2017 17050104 Upper Owyhee 
1754346 ORHarneyWarm Springs Reservoir, 40.7 mi E Burns2017 17050116 Upper Malheur 
1877738 ORMultnomahColumbia River2000 17080003 Lower Columbia-Clatskanie 
1877739 ORMultnomahColumbia River2000 17080003 Lower Columbia-Clatskanie 
1877740 ORMultnomahColumbia River2000 17080003 Lower Columbia-Clatskanie 
1753465 WAGrays HarborSatsop River, 4 mi NW Satsop1982 17100104 Lower Chehalis 
1754356 WAKingLake Washington1999 17110012 Lake Washington 

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/22/2026].

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