Specimen Information

Pacifastacus leniusculus
Pacifastacus leniusculus
(Signal Crayfish)
Native Transplant

Specimen ID260636
Common NameSignal Crayfish
CountyEl Dorado
LocalityLake Tahoe
Mapping AccuracyAccurate
HUC8 NameLake Tahoe
HUC8 Number16050101
HUC10 NameLake Tahoe
HUC10 Number1605010105
HUC12 NameLake Tahoe
HUC12 Number160501010500
Collection Year1916
Year AccuracyActual
Potential Pathwaystocked
CommentsP. leniusculus was found to be thriving in the lake proper in 1932. As many as 220 million estimated to be in the lake by 2011. Commercial fishing for them allowed on Nevada side.
Record TypeLiterature
Earliest Recorddrainage


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Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [6/15/2024].

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