Species · GBIF taxon 9442269
Marbled Crayfish
Procambarus virginalisAlso known as Marmorkrebs, Self-Cloning Crayfish
Marbled crayfish are unique all-female decapod crustaceans that reproduce exclusively through self-cloning, meaning every individual is genetically identical to its parent. Originally discovered in the German aquarium trade, they have rapidly established wild populations across Europe, Asia, and Africa due to aquarium releases. Their high adaptability and explosive reproductive rate make them a formidable threat to freshwater ecosystems worldwide.
InvasiveParthenogeneticFreshwater
Licensed reference(c) Chucholl C., some rights reserved (CC BY-SA) · cc-by-sa
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & prey
- Aquatic plants
- Detritus
- Small invertebrates
Predators
- Predatory fish
- Herons
- Raccoons
ThreatsEradication efforts in introduced ranges, though they face no threat of extinction
HabitatsLakes, ponds, slow-moving rivers, swamps, and ditches
Life span2 to 3 years
Size / weightNot available
Classification
- FamilyCambaridae
- SpeciesProcambarus virginalis
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- Capable of pinching with their claws; handle with care to avoid minor pinches.
Responsible observation
- Do not release: Never release aquarium specimens into the wild as a single individual can start a new population.
- Handling: Pick them up gently from behind the carapace to avoid their small but sharp claws.
- Reporting: Report any wild sightings to local environmental authorities to help track invasive spread.
Competitor No machine-readable author provided. MikeMurphy assumed (based on copyright claims). / Public domain · cc0
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