Endangered
Epioblasma triquetra
Epioblasma triquetra
Epioblasma triquetra is a bivalve in the family Unionidae (order Unionida), recorded as Endangered.
Range and habitat
This species lives in the Great Lakes system and Mississippi River system. Its natural habitat is riffles and shoals of rocky rivers, and the shores of lakes with wave activity. This species is declining throughout its range due to habitat destruction, siltation, pollution, and competition with invasive species.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
Freshwater mussels bury in the bed and live for decades if the river still runs and the host fish still spawn.
In crisis
It is native to eastern North America, where it is a listed as an endangered species in both Canada and the United States.
Epioblasma triquetra is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the English Wikipedia article on Epioblasma triquetra, Wikidata item Q3013424. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.



