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The Colorado River cutthroat trout (Oncorhynchus clarkii pleuriticus) is a subspecies of cutthroat trout native only to the Green and Colorado River basins, which are west of the Continental Divide. Cutthroat trout found in other river basins belong to other subspecies.
Green River cutthroat trout: San Juan cutthroat trout O. v. ssp. Also lumped in with the Colorado River cutthroat. Native to San Juan River and its tributaries across small portions of the Four Corners region. This trout was formally re-discovered in 2012, by analyzing the genetics of two museum specimens obtained from the basin in 1874.
Colorado River cutthroat trout: Oncorhynchus clarki pleuriticus: Considered one of the more beautiful trout in North America for its red coloration from the bottom mouth to the abdomen. These trout are found in high-country lakes and stream in the cool mountains. The native subspecies that feed on aquatic and terrestrial insects can grow up to ...
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Historically, cutthroat trout was considered one species (Oncorhynchus clarkii).[2] [9] However, recent genetic, taxonomic, and geologic [10] evidence has determined that cutthroat trout should be divided into four species, with each (except for the coastal cutthroat) having multiple subspecies corresponding to the evolutionary lineages [11] found within major river basins.
The Colorado River Cutthroat trout, a native of western Colorado, eastern Utah, northwestern New Mexico, and southwestern Wyoming. Colorado River cutthroat trout were once abundant in mountainous tributaries of the Green and Colorado rivers, but non-native brown, brook, and rainbow trout had displaced them by the 1930s. They still survived in ...
Six key watersheds along the Colorado River have become increasingly vulnerable to drought and could be nearing a point of no return, a new study has found. These basins, located in Colorado’s ...
The current system by which Colorado River water is allocated expires at the end of 2026, and water users are scrambling to reach an agreement. The Central Arizona Project and Tom Buschatzke ...