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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).
The Colorado pikeminnow, P. lucius, is the largest member of the genus, ranging from 4–9 lb (2–4 kg) in adult fish with occasional specimens up to 25 lb (11 kg). Historical and anecdotal reports of Colorado pikeminnows nearing 6 feet (1.8 m) in length and 80 lb (36 kg) in weight have been made.
The San Juan River Basin Recovery Implementation Program or (SJRIP) is a river management project that was established to recover two endangered fish species in the San Juan River, the Colorado pikeminnow (Ptychocheilus lucius) and the razorback sucker (Xyrauchen texanus), while allowing water development and management activities to continue in the San Juan River Basin.
The Colorado pikeminnow will usually inhabit rivers and quiet backwaters. Juvenile Colorado pikeminnow will feed on insects and plankton while adults will primarily feed on fish. Colorado pikeminnow being one of the largest minnows will typically reach lengths of 20 inches with the biggest reported being 70 inches long.
The Northern pikeminnow, Columbia River dace or colloquially Squawfish (Ptychocheilus oregonensis) is a large member of the minnow family, Leuciscidae. [2] This predatory freshwater fish is native to northwestern North America, ranging from the Nass River basin to the Columbia River basin. [ 2 ]
Much of the Colorado River's water is used for agriculture. A new study shows 46% of the water that is diverted is used to grow hay to feed cattle. Hay grown for cattle consumes nearly half the ...
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Four species of fish native to the Colorado River basin are in danger of becoming extinct: the Colorado pikeminnow, the razorback sucker, the bonytail, and the humpback chub. The goal of the program is to stem further reductions in numbers of these species and, eventually, to create self-sustaining populations, while water development proceeds ...