Margaritifera margaritifera
One of the longest-lived invertebrates in the world (up to 130 years) and one of the rarest. UK populations have declined by over 90%. It requires clean, fast-flowing rivers with salmon and trout as juvenile host fish.
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Record your Freshwater Pearl Mussel sighting and share it with the community.
Record sightingConservation Status: CR
Critically Endangered — assessed by the IUCN Red List of Threatened Species.