Margaritifera margaritifera
Conservation status data sourced from the IUCN Red List of Threatened Species.
↓Decreasing
Population trend
20
Countries
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Freshwater_pearl_mussel
Taxonomy & Classification
Kingdom
ANIMALIA
Phylum
MOLLUSCA
Class
BIVALVIA
Order
UNIONIDA
Family
MARGARITIFERIDAE
Genus
Margaritifera
Margaritifera margaritifera belongs to the family MARGARITIFERIDAE, order UNIONIDA, within the BIVALVIA class.
Habitat & Distribution
Threats
IUCN Red List: Endangered
Assessed as Endangered by the IUCN Red List of Threatened Species.
Agricultural & forestry effluents
Annual & perennial non-timber crops
Dams & water management/use
Domestic & urban waste water
Droughts
Fishing & harvesting aquatic resources
Habitat shifting & alteration
Housing & urban areas
Hunting & trapping terrestrial animals
Industrial & military effluents
Introduced genetic material
Invasive non-native/alien species/diseases
Livestock farming & ranching
Logging & wood harvesting
Mining & quarrying
Other ecosystem modifications
Roads & railroads
Storms & flooding
Type Unknown/Unrecorded (pollution)
Conservation Actions
Found in 20 Countries
National vs Global Threat Status
How this species is assessed at the national level compared to its IUCN global status (EN).
| Country | National Status | Global Status | Comparison |
|---|---|---|---|
| EU | CRCritically Endangered | ENEndangered | Higher local risk |
| EU | CRCritically Endangered | ENEndangered | Higher local risk |
National Red List data sourced from the National Red List Project (nationalredlist.org, ZSL) and country-specific Red List authorities.
Community Sightings
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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
National Red Lists: ZSL (2025). National Red List. Zoological Society of London. Available at: https://www.nationalredlist.org
This page: SpeciesRadar (2025). Margaritifera margaritifera (Margaritifera margaritifera). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/scottish-pearl-mussel