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Epioblasma
''Epioblasma'' is a North American genus of freshwater mussels, Aquatic animal, aquatic bivalve mollusks in the family Unionidae, the river mussels. Most of the species in this genus have been lost in modern times, and the entire genus is threatened with the possibility of extinction. Reproduction All Unionidae are known to make use of the gills, fins, or skin of a host fish for nutrients during the larval glochidia stage. It was discovered in 2004 that female ''Epioblasma'' in the subgenus ''Torulosa'' transfer their parasitic larvae to the host fish by snapping onto the head of the fish and pumping the larvae into the host fish's gills. While using bait to lure host fish towards the larvae is common in the family Unionidae, this was the first time that "fish snapping" behavior had been observed. Examination of other species within the genus ''Epioblasma'' may further reveal unusual reproductive mechanisms. Taxonomy of the genus ''Epioblasma'' Note: Taxa with a "extinction, †" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Florentina Curtisii
''Epioblasma'' is a North American genus of freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. Most of the species in this genus have been lost in modern times, and the entire genus is threatened with the possibility of extinction. Reproduction All Unionidae are known to make use of the gills, fins, or skin of a host fish for nutrients during the larval glochidia stage. It was discovered in 2004 that female ''Epioblasma'' in the subgenus ''Torulosa'' transfer their parasitic larvae to the host fish by snapping onto the head of the fish and pumping the larvae into the host fish's gills. While using bait to lure host fish towards the larvae is common in the family Unionidae, this was the first time that "fish snapping" behavior had been observed. Examination of other species within the genus ''Epioblasma'' may further reveal unusual reproductive mechanisms. Taxonomy of the genus ''Epioblasma'' Note: Taxa with a "†" symbol are extinct due to h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Obliquata
''Epioblasma obliquata'', commonly called the catspaw, is a species of freshwater mussel. It is native to eastern North America, where it is classified as endangered under the Endangered Species Act. There are two subspecies, each with distinct morphology. Due to species rarity, the behavior of this organism is unknown beyond general freshwater mussel behavior. Natural history and conservation This species was historically widespread in the Ohio River and Great Lakes drainage basins. Like many other North American freshwater mussels, it relies on a habitat of shallow, gravelly riffle zones in larger rivers. This oxygen-rich habitat has largely been destroyed over the past 200 years by dam construction and dredging, which caused a massive population decline. Freshwater mussels also face the major threats of water temperature, water velocity, and turbidity changes. These factors add great stress on the survival of these mussels in their respective environments. They change the ecoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Capsaeformis
The oyster mussel (''Epioblasma capsaeformis'') is a rare species of freshwater mussel in the family Unionidae. This aquatic bivalve mollusk is native to the Cumberland and Tennessee River systems of Kentucky, Tennessee, Alabama, and Virginia in the United States. It has been extirpated from the states of Georgia It is a federally listed endangered species of the United States. This mussel was once widely distributedUSFWS''Epioblasma capsaeformis'' Five-year Review.July 2011 and common. It has declined 80% from its historical abundance. It is now extirpated from the Cumberland River system and the main artery of the Tennessee River. It remains in the Nolichucky River of Tennessee and the Clinch River in Tennessee and Virginia. Specimens once classified as this species that remain in the Duck River in Tennessee have now been classified as a separate species, '' Epioblasma ahlstedti''.Jones, J.W., and R.J. Neves. 2010. "Descriptions of a new species and a new subspecies of freshwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Florentina Walkeri
''Epioblasma walkeri'', common name the tan riffleshell, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Many scientists now recognize this mussel as synonymous or a subspecies of the presumed extinct ''Epioblasma florentina'' due to integrating shell characteristics between them. At the time of its listing in 1977 under the Endangered Species Act of 1973, its range was limited to the lower Red River (Cumberland system), the middle fork of the Holston River, a possible population in the Stones River, the Duck River, where its population was threatened by a proposed Tennessee Valley Authority dam, and the Clinch River. The population in Indian Creek in the upper Clinch River basin was proposed as a separate subspecies by Jones, Neves, Ahlstedt and Hallerman in 2006. It is listed under Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora CITES (shorter acronym for the Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Ahlstedti
''Epioblasma ahlstedti'', commonly called the Duck River dartersnapper, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. It is native to Alabama and Tennessee in the southeastern United States, where it is endemic to the Tennessee River drainage. Although it is currently known only from the Duck River in Tennessee, museum specimens document that it was also historically found in the Buffalo River, the main stem of the Tennessee River at Muscle Shoals, and in Shoal Creek, Alabama. Like many freshwater mussels, this species has experienced extreme habitat loss and is now considered to be critically imperiled by NatureServe. The last remaining populations are found only in a 30-mile stretch of the Duck River, one of the most biologically diverse rivers in North America. This species was described to science in 2010, distinguishing it from the closely related (and also endangered) ''Epioblasma capsaeformis The oyster muss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Flexuosa
''Epioblasma flexuosa'', the arcuate pearly mussel or leafshell, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species was endemic to the United States, where it was found in the major drainages of the Ohio River, including the Cumberland, Tennessee, and Wabash Rivers. Its natural habitat was flowing water. Like most other members of this sensitive genus, it became extinct early after industrialization due to habitat loss Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease ... and pollution. The last living individual was seen in the year 1900. It appears to be most closely related to '' Epioblasma lewisii'', which is also now extinct. References flexuosa Bivalves described in 1820 Taxa named by Constantine Samu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Stewardsonii
''Epioblasma stewardsonii'', the Cumberland leafshell or Steward's pearly mussel, is an extinct species of freshwater mussel in the family Unionidae. This species was endemic to the drainages of the Cumberland River and the Tennessee River in the United States. Its natural habitat was riffle areas in large- to medium-size rivers. Like most other members of this sensitive genus, it became extinct due habitat destruction and pollution. The last documented occurrence of this species was in 1909. It appears to be most closely related to ''Epioblasma flexuosa ''Epioblasma flexuosa'', the arcuate pearly mussel or leafshell, was a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. This species was endemic to the United States, where it was found in the m ...'', which is also now extinct. References Extinct bivalves stewardsonii Bivalves described in 1852 Taxonomy articles created by Polbot {{Unionidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epioblasma Brevidens
''Epioblasma brevidens'', the Cumberlandian combshell, is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae. This species is endemic to the United States, found mainly in the states of Tennessee and Virginia. This mussel resides in medium-sized streams to large rivers. The combshell is an endangered species and protected under the Endangered Species Act of 1973 (ESA). The combshell is threatened by habitat modifications and pollution. Description and physical characteristics The Cumberlandian combshell (''Epioblasma brevidens'') is a brown and yellow mussel that is about long. Its shell has a yellow and brown film-like coating. The shell also has many green rays on it. The inside of the mussel is pearl-white. Female combshells also have serrated teeth-like structures around the edge of their shell, which appears inflated. These mussels live in shoals and in coarse sand and boulders in medium streams to large rivers. Combshells tend to live ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
