Biology:Fanshell
| Fanshell | |
|---|---|
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Bivalvia |
| Order: | Unionida |
| Family: | Unionidae |
| Genus: | Cyprogenia |
| Species: | C. stegaria
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| Binomial name | |
| Cyprogenia stegaria (Rafinesque, 1820)
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| Synonyms[4] | |
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List
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The fanshell (Cyprogenia stegaria) is a species of aquatic bivalve mollusk in the family Unionidae. This clam is native to the United States, where breeding populations remain in only three rivers. It is a federally listed endangered species of the United States.[2][3]
This clam is known to be reproducing in the Clinch River in Tennessee and Virginia, and the Green and Licking Rivers in Kentucky. There may be a small reproducing population in the Tennessee River. There also may be some small populations remaining in several states, but these are not reproducing.[5]
This species is threatened by the loss and degradation of its habitat.[3]
Reproduction
All Unionidae are known to use the gills, fins, or skin of a host fish for nutrients during the larval glochidia stage. Cyprogenia stegaria release into the water a conglutinate mimicking an Oligochaeta worm which contains the mussel's young. When a fish bites into the conglutinate lure, the young glochida are released and latch onto the fish's gills for nutrients.[5]
References
- ↑ Bogan, A.E. (1996). "Cyprogenia stegaria". IUCN Red List of Threatened Species 1996: e.T6184A12566234. doi:10.2305/IUCN.UK.1996.RLTS.T6184A12566234.en. https://www.iucnredlist.org/species/6184/12566234. Retrieved 17 November 2021.
- ↑ 2.0 2.1 "Fanshell (Cyprogenia stegaria)". https://ecos.fws.gov/ecp/species/4822.
- ↑ 3.0 3.1 3.2 55 FR 25591
- ↑ "Cyprogenia stegaria (Rafinesque, 1820)". Integrated Taxonomic Information System. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=80277.
- ↑ 5.0 5.1 Jones, J. W. and R. J. Neves. (2002). Life history and propagation of the endangered fanshell pearlymussel, Cyprogenia stegaria Rafinesque (Bivalvia:Unionidae). Journal of the North American Benthological Society 21(1) 76–88. doi:10.2307/1468301 JSTOR 1468301
Wikidata ☰ Q3016454 entry
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