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・ Colorado River (Costa Rica)
・ Colorado River (disambiguation)
・ Colorado River (Lontué)
・ Colorado River (Maipo)
・ Colorado River (Potosi)
・ Colorado River (Rondônia)
・ Colorado River (Tempisque River)
・ Colorado River (Texas)
・ Colorado River Aqueduct
・ Colorado River Basin Salinity Control Act
・ Colorado River Basin Salinity Control Program
・ Colorado River Board of California
・ Colorado River Bridge
・ Colorado River Bridge at Bastrop
・ Colorado River Compact
Colorado River cutthroat trout
・ Colorado River Delta
・ Colorado river dispute
・ Colorado River Indian Tribes
・ Colorado River Indian Tribes v. National Indian Gaming Commission
・ Colorado River Irrigation Company
・ Colorado River Numic language
・ Colorado River Storage Project
・ Colorado River toad
・ Colorado River Union High School District
・ Colorado River Watch
・ Colorado River Water Conservation District
・ Colorado River Water Conservation District v. United States
・ Colorado Rockies
・ Colorado Rockies (disambiguation)


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Colorado River cutthroat trout : ウィキペディア英語版
Colorado River cutthroat trout

(詳細は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.
==Range==
In the past, this subspecies was found throughout portions of the Colorado River drainage in Wyoming, Colorado, Utah, Arizona, and New Mexico. However, today scientists believe this fish occupies 13% of its historic range (Range-Wide Status of Colorado River Cutthroat Trout (Oncorhynchus clarkii pleuriticus):
2005).
Colorado River cutthroats are thought to have occupied the basin of upper Muddy Creek, a tributary of the Little Snake River (which ultimately flows into the Colorado River) in southern Carbon County, Wyoming. Historical accounts in letters and diaries refer to them as "mountain trout" or "speckled trout." The fish may have begun to disappear from the upper Muddy Creek in the 1850s as a result of physical changes made to the environment by travelers, the introduction of the brook trout and other non-native species, and possibly the over-trapping of beavers, which affected dams and dependent habitats.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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