Pacifastacus leniusculus
Pacifastacus leniusculus
(Signal Crayfish)
Crustaceans-Crayfish
Native Transplant
Collection Info
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Species Profile
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6 results for Pacifastacus leniusculus (Signal Crayfish)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
619851 CAMontereyMonterey County1959 18060005 Salinasestablished
4754 CAMontereyMonterey County1959 18060000 Central California Coastalestablished
1754350 CASan Luis ObispoNacimiento River, river mile9.4, Twin Bridges, Boyscout Rd., S jct. Bivouac Rd., Camp Roberts1994 18060005 Salinas 
4751 CASanta CruzSan Lorenzo River, Santa Cruz1912 18060015 Monterey Bayestablished
619853 CASanta CruzSanta Cruz County1912 18060015 Monterey Bayestablished
619850 CASanta CruzSanta Cruz County1950 18060015 Monterey Bayestablished

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/21/2025].

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