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The humpback chub (Gila cypha) is a federally protected fish that lived originally in fast waters of the Colorado River system in the United States.This species takes its name from the prominent hump between the head and dorsal fin, which is thought to direct the flow of water over the body and help maintain body position in the swift currents of the Colorado river.
Humpback chub: Gila cypha: Native to Colorado. It is known to only reside in rivers but prefers slower eddies and pools with bottoms of sand, gravel, or rock substrate. Humpback chubs can reach up to lengths of 20 inches in and weigh up to 2.5 pounds. Humpback chubs are known to be a long living fish having a life span of up to 30 years. [36]
Similar species include the humpback chub (Gila cypha) and bonytail chub (G. elegans), however, these fish have extremely slender caudal peduncles, smaller eyes, angle along anal fin base continuing above the caudal fin. Large individuals have a hump on their nape, and a depressed head which is absent on the headwater chub.
Species of Gila are collectively referred to as western chubs. The chiselmouth is a close relative (Simons & Mayden 1997), as are members of the genus Siphateles . Several members of the genus are endangered or extinct due to loss of habitat caused by diversion or overuse of water resources, particularly in the western United States.
The term chub refers to numerous fish of the family Cyprinidae in several North American and European genera; they generally belong to the subfamily Leuciscinae. The North American chubs are in this category. For European chubs, see Category:Squalius. The unrelated sea chubs are Perciformes of the family Kyphosidae.
A bonytail chub can grow to 62 cm (2 ft) long. [2] Like many other desert fishes, its coloring tends to be darker above and lighter below, serving as a camouflage. Breeding males have red fin bases. They have a streamlined body and a terminal mouth. [5] Bonytail chubs have bodies that sometimes arch into a smooth, predorsal hump (in adults).
The Colorado pikeminnow (Ptychocheilus lucius, formerly squawfish) is the largest cyprinid fish of North America and one of the largest in the world, with reports of individuals up to 6 ft (1.8 m) long [3] and weighing over 100 pounds (45 kg).
Macrhybopsis, the blacktail chubs, is a genus of cyprinid fish that are found in North America. There are currently 12 species in this genus. There are currently 12 species in this genus. Species