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About: Northern riffleshell     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:Mollusk, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: animalumbel-rc:Animalumbel-rc:Mollusk New Facet based on Instances of this Class

The northern riffleshell (Epioblasma torulosa rangiana), is a subspecies of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This subspecies is endangered. This species was formerly found widely in the Ohio River basin, but now the population is fragmented into only three viable groups. This river mussel needs gravel river beds and swift-flowing, well-oxygenated water. The reduction in range seems to be principally due to damming and the consequential silting up of rivers below the dam and competition from zebra mussels.