Pacifastacus leniusculus, Signal crayfish : fisheries
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Pacifastacus leniusculus   (Dana, 1852)

Signal crayfish
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Pacifastacus leniusculus

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Astacidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Benthic; freshwater.  Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Introduced in Europe & Northern Asia (excluding China).

Length at first maturity / Size / Weight / Age

Maturity: Lm 9.0, range 6 - ? cm Max length : 15.9 cm TL male/unsexed; (Ref. 127979); max. published weight: 175.00 g (Ref. 127979)

Biology     Glossary (e.g. epibenthic)

This is an omnivorous species (Ref. 96489).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.

Main reference References | Coordinator | Collaborators

Gollasch, S. and S. Nehring 2006 National checklist for aquatic alien species in Germany. Aquatic Invasions 1(4):245-269. (Ref. 3700)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Least Concern (LC) ; Date assessed: 01 June 2010

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
FAO - Aquaculture: production; Fisheries: landings | FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Trophic Ecology
Food items (preys)
Diet composition
Food consumption
Predators
Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
Collaborators
Taxonomy
Common names
Synonyms
Morphology
Pictures
References
References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Fisheries: ; publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Fishing Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Unknown.

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