Ptychocheilus

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Ptychocheilus
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Cypriniformes Family: Cyprinidae Genus: Ptychocheilus Agassiz, 1855
Species
Ptychocheilus grandis Ptychocheilus lucius Ptychocheilus oregonensis Ptychocheilus umpquae

Squawfish or pikeminnows are cyprinid fish of the genus Ptychocheilus consisting of four species native to western North America. Voracious predators, they are considered an "undesirable" species in many waters. This is largely due to the species' perceived tendency to prey upon small trout and salmon. "Squawfish" is their traditional name. In 1999, the American Fisheries Society adopted "pikeminnow" as the name it recommends, because some Native Americans considered "squawfish" offensive.^[1]

The Colorado pikeminnow, P. lucius, is the largest member of the genus, averaging 4 to 9 pounds (2 to 4 kg) in adult fish with occasional specimens up to 25 pounds (11 kg). There are historical and anecdotal reports of Colorado pikeminnows nearing 6 feet (1.8 m) in length and 80 pounds (36 kg) in weight. The species is near extinction in its native Colorado River basin habitat, due to extensive habitat destruction. It too is considered an undesirable species, despite being critically endangered. Critics of the recovery program have suggested that the efforts are hugely expensive and largely unsuccessful.^{[citation needed]}

[edit] References

1. ^ Nelson, J.S., E.J. Crossman, H. Espinosa-Pérez, L.T. Findley, C.R. Gilbert, R.N. Lea, and J.D. Williams. 2004. Common and scientific names of fishes from the United States, Canada, and Mexico. American Fisheries Society, Special Publication 29, Bethesda, Maryland. 386 p.

• Ptychocheilus (TSN 163522). Integrated Taxonomic Information System. Retrieved on 26 July 2006.
• "Ptychocheilus". FishBase. Ed. Ranier Froese and Daniel Pauly. July 2006 version. N.p.: FishBase, 2006.