CRCritically Endangered

Ochre-Bellied Crayfish

Euastacus mirangudijn

Conservation status data sourced from the IUCN Red List of Threatened Species.

01Classification

Taxonomy & Classification

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

Family

Parastacidae

Genus

Euastacus

Ochre-Bellied Crayfish belongs to the family Parastacidae, order Decapoda, within the Malacostraca class.

02Description

Species Profile

Species profile data sourced from the IUCN Red List of Threatened Species.

The Ochre-Bellied Crayfish faces severe threats from habitat degradation and water quality decline across its limited range in southeastern Australia. Agricultural runoff, urban development, and altered water flows have significantly impacted the pristine freshwater systems this species requires for survival.

Key Facts

IUCN StatusCritically Endangered (CR)
GroupCrustaceans
03Habitat

Habitat & Distribution

Inhabits cool, clear freshwater streams and rivers with rocky substrates in forested catchments of southeastern Australia. Requires well-oxygenated water with stable temperatures and abundant shelter sites among rocks, logs, and undercut banks.

FRESHWATERMajor
04Threats

Threats

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IUCN Red List: Critically Endangered

The Ochre-Bellied Crayfish faces severe threats from habitat degradation and water quality decline across its limited range in southeastern Australia. Agricultural runoff, urban development, and altered water flows have significantly impacted the pristine freshwater systems this species requires for survival.

Altered stream flows from water extraction

HighOngoing

Habitat fragmentation from urban development

HighOngoing

Water pollution from agricultural runoff

HighOngoing

Climate change affecting water temperature and flow patterns

MediumOngoing

Sedimentation from land clearing

MediumOngoing
Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2025). Ochre-Bellied Crayfish (Euastacus mirangudijn). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/ochre-bellied-crayfish

Full citation guide & data usage terms