ENEndangered
Thick Shelled River Mussel
Unio crassus
DecliningVUEUVUEU
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Habitat
Wetlands (inland)· majorWetlands (inland) - Permanent rivers/streams· major
Conservation measures underway
Site/area protectionHabitat & natural process restorationSpecies managementSpecies recoveryEx-situ conservationAwareness & communicationsLegislation
Other threatened species in UNIONIDAE
Threatened in Armenia
Frequently asked questions
Why is Thick Shelled River Mussel classified as Endangered?
Thick Shelled River Mussel is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure, per the IUCN Red List assessment recorded in the SpeciesRadar database.
Where does Thick Shelled River Mussel live?
Thick Shelled River Mussel occurs in Armenia, Finland, France, Russia, and Sweden. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Thick Shelled River Mussel?
The main threats to Thick Shelled River Mussel are 1.1, 5.3, 7.2, and 7.3. The full IUCN-classified threat record for this species is detailed on the species page.
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