Kauaʻi record · KCA-FISH-000018
red swamp crayfish
Procambarus clarkii
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About red swamp crayfish
Procambarus clarkii is a decapod crustacean in the family Cambaridae. Published sources characterize its origin status as introduced. Published Kauaʻi evidence documents the species from Kauaʻi freshwater sites. Evidence types include nonindigenous occurrence database. These records establish a documented Kauaʻi occurrence but are not automatically interpreted as a present-day abundance estimate. The documented Kauaʻi habitat context includes freshwater. For current-status context, established on Kauaʻi in USGS nonindigenous aquatic records. The available Kauaʻi evidence does not support adding island-specific claims about diet, reproduction, behavior, population size, or trend unless those points are stated in the cited sources, so they are not inferred here. Keeping the accepted taxonomic concept together with the dated occurrence evidence allows later surveys to distinguish historical documentation from contemporary status.
Kauaʻi evidence
Seed record is tied to listed sources; source scope and uncertainty are retained.
Names and classification
- Scientific name
- Procambarus clarkii
- Common names
- red swamp crayfish
- Other names
- red swamp crayfish · Procambarus clarkii · crustacean · crustaceans
- Family
- Cambaridae
- Order
- Decapoda
- Record type
- species
Kauaʻi occurrence and status
- Kauaʻi occurrence
- confirmed by published Kauaʻi occurrence evidence
- Origin
- introduced
- Conservation status
- Not assessed
- Evidence date
- 2026-09-13
- Evidence limits
- Claims remain limited to cited evidence; precise sensitive locations are suppressed from public display.
Habitat and ecology
- Habitats
- Freshwater reaches and altered aquatic habitats
- Food and resource needs
- Unknown / not yet documented
- Reproduction
- Unknown / not yet documented
- Shelter
- Introduced benthic omnivore
Threats and conservation
- Threats
- Potential competition, predation, habitat alteration, and food-web effects
- Conservation actions
- Record-specific conservation actions need supporting evidence.
- Monitoring
- Retain Kauaʻi-specific distribution, abundance, life-stage, behavior, habitat, trend, and attendant data with provenance.
- Data gaps
- Kauaʻi-specific distribution, abundance, trend, behavior, life-stage, and attendant data need refinement.
Process and seasonal context
- Seasonal timing
- Unknown / not yet documented
- Seasonal description
- red swamp crayfish (Procambarus clarkii) is a confirmed Kauaʻi crustacean species documented from Kauaʻi freshwater sites. The occurrence is retained with its source date and status so historical evidence is not presented as a current population estimate.