Nocomis platyrhynchus
| Nocomis platyrhynchus | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cyprinidae |
| Genus: | Nocomis |
| Species: | N. platyrhynchus |
| Binomial name | |
| Nocomis platyrhynchus Lachner & Jenkins, 1971 | |
Nocomis platyrhynchus, the big mouth chub, is a species of fish native to West Virginia.
Description
Nocomis platyrhynchus has a body length that averages 15.2 centimeters and can reach up to 21.4 centimeters.[2] The chub has an elongated body that is nearly circular in cross section. It has a triangular head and a pointy snout. The mouth of the chub is medium-sized and has a barbell on each side.[3]
The chub has eight dorsal fin rays, eight pelvic fin rays, seven anal fin rays, and fourteen to seventeen pectoral fin rays.[3]
The fish is covered with cycloid scales. The scales on the chub’s dorsal section, or top of the fish, have brown pigment.[3] The scales on the ventral section, or bottom of the fish, lack pigment and are white in appearance.[3]
Habitat
Nocomis platyrhynchus is generally found in pools and fast moving waterways in North Carolina, Virginia, West Virginia. Many populations are located in the New River of West Virginia and its tributaries. The fish prefers clear rivers with warm temperatures. The substrate of rivers inhabited by N. platyrhynchus ranges from pebbles to boulders. It avoids the shallowest parts of rivers and waterways, and tends to be found near substrate.[1]
Reproduction
The chub reproduces through spawning. Spawning occurs in gravel spawning mounds created by male Nocomis platyrhynchus. The mounds tend to be located in areas with small to large-sized gravel and with medium water speeds.[1]
Conservation status
Nocomis platyrhynchus is ranked as being of least concern by the International Union for Conservation of Nature. The fish is not seen as at risk for extinction due to its large and stable population size, large habitat range and a lack of wide-scale threats to its survival.[1]
References
- 1 2 3 4 NatureServe (2013). "Nocomis platyrhynchus". IUCN Red List of Threatened Species. Version 2014.3. International Union for Conservation of Nature. Retrieved 2015-03-11.
- ↑ Froese, Rainer. "Nocomis platyrhynchus". Fish Base. Retrieved 9 March 2015.
- 1 2 3 4 Stauffer, Jay (2007). Fishes of West Virginia. Academy of Natural Sciences. p. 114. Retrieved 9 March 2015.