Sagittunio nasutus
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Sagittunio nasutus, the eastern pondmussel, is a species of freshwater mussel in the family Unionidae, the river mussels.[1]
This species is native to the eastern United States and Ontario, Canada.[2] In Canada, the eastern pondmussel has been adversely affected by zebra mussels, which were introduced near the end of the 1980s.[3] Originally assessed as endangered due to the existence of only two known Canadian populations,[3] the eastern pondmussel was placed on Schedule 1 of the Species at Risk Act in 2013.[4] However, a reassessment by the Committee on the Status of Endangered Wildlife in Canada in 2017 identified seventeen additional subpopulations,[5] and the eastern pondmussel was relisted as "special concern" in August 2019.[4] The population of the lower Great Lakes has limited diversity in certain mitochondrial genetic markers compared to those of the eastern seaboard's population, evidence of a founder effect and suggestive of a post-glacial arrival of Atlantic coast mussels to the Great Lakes by a restricted route.[5]Template:Rp[6] The Walpole Island First Nation protects a population of eastern pondmussels residing in their tribal waters within the delta of Lake St. Clair.[3]Template:Rp
Like many Unionoid mussels, female eastern pondmussels display a lure to attract their fish hosts (see video, right).
References
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- ↑ MolluscaBase eds. (2021). MolluscaBase. Sagittunio nasutus (Say, 1817). Accessed through: World Register of Marine Species at: http://marinespecies.org/aphia.php?p=taxdetails&id=1056434 on 2021-05-08
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- Say, T. (1817). Conchology. - In: Nicholson, W.: American edition of the British Encyclopedia, or, dictionary of arts and sciences comprising an accurate and popular view of the present improved state of human knowledge. First Edition, A-3 - C-6 [= 1-20], pl. [1-4]. page(s): [unpaginated], pl. 4 fig. 1
- Watters, G.T. (2018). A preliminary review of the nominal genus Villosa of freshwater mussels (Bivalvia, Unionidae) in North America. Visaya. Suppl. 10: 3-139.