Razorback sucker

The Razorback sucker sucker is most notable for the sharp-edged bulge on the anterior part,hump, of its back, between the head and dorsal fin, giving rise to its common name, as well as to the alternative humpback sucker.

The Razorback sucker lives in the demersal, potamodromous, freshwater environment.

The Razorback sucker is classified as Endangered (EN), considered to be facing a very high risk of extinction in the wild.

This photo of a razorback sucker was taken at the Ouray National Fish Hatchery by Mark Fuller, a biologist for the US Fish and Wildlife Service, and provided by Tim Modde, USFWS. More

* States/US Territories in which the Razorback sucker, entire is known to occur: Arizona , California , Colorado , Nevada , New Mexico , Utah , Wyoming * USFWS Refuges in which the Razorback sucker, entire is known to More

The razorback sucker, Xyrauchen texanus, is an endangered fish of rivers in the Colorado River drainage of western North America. More

Abstract: Razorback sucker and bonytail were once common throughout the Colorado River Basin. Both are now federally listed as endangered. Efforts to help the fish began with the creation of the Colorado River Fishery Project in 1976. More

Predator - Prey Studies Concerning Razorback Sucker and Introduced Fishes Content Citation Title: Predator - Prey Studies Concerning Razorback Sucker and Introduced Fishes Content Type: Downloadable Data Publisher: U.S. More

PAGE - The razorback sucker recovery program at Page High School celebrated its fifth birthday recently with a trip to Shiprock, N.M., of all places. PHS students traveled to the small Four Corners community to deposit dozens of the endangered fish into the San Juan River. More

* The razorback sucker is one of the largest suckers in North America; larger fish may weigh as much as 12 to 14 pounds and may be 40 years old. More

Techniques for Monitoring Razorback Sucker in the Lower Colorado River, Hoover to Parker Dams, 2006–2007, Final Report - By Gordon A. More

Razorback suckers can live to be forty or fifty years old. More

Razorback suckers are listed as an endangered species and in California fail to have any remaining naturally propagating populations. Razorback suckers primarily inhabit large slow moving sections of river within the Colorado River drainage, though they also inhabit scattered lakes and basins. More

The razorback sucker was once widespread throughout most of the Colorado River Basin from Wyoming to Mexico. More

re-creating an extinct razorback sucker will not serve the function of a bottom-feeding fish population in maintaining a healthy river ecosystem. Only a new consciousness will let people see that a simulated version of the rain forest will not create oxygen for a world of breathing organisms. More

Razorback Sucker Printer friendly versionPrinter friendly version Endangered Colorado, Federally Xyrauchen Texanus - Endangered Razorback Sucker Description: The razorback sucker is a large, bronze to yellow fish that grows to a weight of about 15 pounds More

The razorback sucker was originally described as Catostomus texanus from a specimen collected from Arizona (Abbott 1861). Eigenmann and Kirsch (Kirsch 1889) later described the genus Xyrauchen (Bestgen 1990). More

basin, razorback sucker continue to spawn and reproduce at a low level in Lake Mead, spawning without documented recruitment in Lake Mohave and Lake Havasu (USFWS 2002). More

texanus, or the razorback sucker, is a fish few people recognize. Once abundant in the turbulent and unpredictable Colorado River, the razorback sucker is now restricted to a few remnant populations, the largest being found in Lake Mohave, Arizona-Nevada. More

The razorback sucker is the only representative of the genus Xyrauchen in Arizona. Razorback sucker is one of the larger members of the sucker family (Catostomidae). More

One of the largest suckers in North America, the razorback sucker can grow to up to 13 pounds and lengths exceeding 3 feet. The razorback is brownish-green with a yellow to white-colored belly and has an abrupt, bony hump on its back shaped like an upside-down boat keel. More

In the early 1900s, the razorback sucker could be found in abundance within the Colorado River and its major tributaries. More

funding of a razorback sucker and endangered bonytail chub study in Lake Mohave. U.S. Bureau of Reclamation, Water and Power Resources Service, Boulder City, Nevada. 15 pages. Heggen, A.W. 1980. More

The scientific name for the Razorback sucker is XYRAUCHEN TEXANUS. The Razorback is an endangered fish. More

the razorback sucker and bonytail chub, two of the "big-river" fish endemic to the Colorado River basin. These species, each critically endangered, warrant extensive reintroduction, recovery, and monitoring programs throughout their historic ranges. More

The razorback sucker (Xyrauchen texanus) is a unique fish native to the Colorado River Basin. In the early 1900s, this fish was abundant in the main stem of the Colorado River and its major tributaries. More

We cannot let razorback suckers and the other unique fish of desert rivers go. For one thing, they each play a crucial part in their ecosystems. Razorback suckers, for instance, are important predators of flies and mosquitos. More

Razorback sucker drawingNative fish like the razorback sucker were not well adapted to these biological changes, and their populations slowly declined. The razorback, which is native to North America and found only in the Colorado River Basin, has been around for tens of thousands of years. More

Common names

Kyrmyimukarppi in Finnish (suomen kieli)
matalote jorobado in Spanish (español)
Pakaprovec ostrohřbetý in Czech (česky)
Pukkelsugekarpe in Danish (dansk)
razorback sucker in English
чукучан горбатый in Russian (русский язык)
銳項亞口魚 in Mandarin Chinese
锐项亚口鱼 in Mandarin Chinese

Order : Cypriniformes
Family : Catostomidae
Genus : Xyrauchen
Species : Xyrauchen texanus
Authority : Abbott, 1860