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Etheostoma osburni, the candy darter or finescale saddled darter, is a species of fish in the family Percidae, a member of the group known as darters. This species is endemic to the eastern United States where it is known only from the Kanawha River system in the states of Virginia and West Virginia.[1]

Etheostoma osburni
Conservation status
Near Threatened  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Perciformes
Family:	Percidae
Genus:	Etheostoma
Species:	E. osburni
Binomial name
Etheostoma osburni (C. L. Hubbs & Trautman, 1932)
Synonyms[2]
Poecilichthys osburni C. L. Hubbs & Trautman, 1932

Description

Etheostoma osburni can reach a length of 10 cm (3.9 in), though most only reach about 7.3 cm (2.9 in).[2] This species has a lifespan of up to three years. It spawns in April and May.[3] It is an invertivore, feeding on aquatic insect larvae and water mites.[3]

Habitat and distribution

Etheostoma osburni lives in a system of rivers, streams, and creeks in the central Appalachian Mountains. It can be found in rapid riffles in rocky riverbed habitat. It occurs in cold, cool, and warm waters, as long as the substrate is rocky and the water is clear. It tolerates fast currents.[1]

Conservation

Etheostoma osburni has a limited range, it has been recorded in more than 10 locations and does not have a severely fragmented distribution, so it has been designated a near-threatened species on the IUCN Red List. In 2018, US Fish and Wildlife Service designated it as a federally protected endangered species.[4]< It is probably declining, however, due to threats from human activity.[5] It prefers clear, unsilted waters, and increases in silt and sediment may reduce populations by reducing tolerable habitat.[1]

Taxonomy and etymology

Etheostoma osburni was first formally described as Poecilichthys osburni in 1932 by the American ichthyologists Carl Leavitt Hubbs and Milton Bernhard Trautman With the type locality given as Stony Creek which is a tributary of the Greenbrier River in Pocahontas County, West Virginia.[6] The specific name honors the American zoologist Raymond Carroll Osburn (1872-1955). The candy darter is considered to be closely related to the variegated darter (E. variatum).[7]

See also

Etheostoma osburni

References

Further reading

• Kessinger, Brin E., "Utilizing conservation genetics as a strategy for recovering the endangered Candy Darter (Etheostoma osburni) in West Virginia" (2020). Graduate Theses, Dissertations, and Problem Reports. 7670.

https://researchrepository.wvu.edu/etd/7670

• Leftwich, K. N., et al. (1996). The candy darter (Etheostoma osburni) in Stony Creek, George Washington–Jefferson National Forest, Virginia. Trout Predation, Distribution, and Habitat. Center for Aquatic Technology Transfer, USDA Forest Service.
• Dunn, C. G. (2017) Habitat and Imperilment of the Candy Darter Etheostoma osburni in the New River Drainage, USA, Master of Science Thesis, Virginia Tech.

На других языках

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- [en] Etheostoma osburni

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[es] Etheostoma osburni

Etheostoma osburni es una especie de peces de la familia Percidae en el orden de los Perciformes.

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