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The cutthroat trout (Oncorhynchus sp.) is a group of four fish species [4] [5] of the family Salmonidae native to cold-water tributaries of the Pacific Ocean, Rocky Mountains, and Great Basin in North America. These four species are the Coastal (O. clarkii), Westslope (O. lewisi), Lahontan (O. henshawi), and the Rocky Mountain (O. virginalis
The coastal cutthroat trout (Oncorhynchus clarkii, sometimes referred as Oncorhynchus clarkii clarkii), also known as the sea-run cutthroat trout, blue-back trout or harvest trout, is one of the four species [3] [4] of cutthroat trout found in western North America. The coastal cutthroat trout occurs in four distinct forms.
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.
Here's an easy way to identify the types of trout stocked by the Pennsylvania Fish and Boat Commission.
The nominate subspecies, also known as the westslope cutthroat trout, is Oncorhynchus lewisi lewisi. The westslope cutthroat trout is the Montana state fish. [5] The westslope cutthroat trout is a species of concern in Montana [6] and British Columbia [7] ranges and is considered threatened in its native range in Alberta. [8]
The Bonneville cutthroat trout (Oncorhynchus clarkii utah) is a subspecies of cutthroat trout native to tributaries of the Great Salt Lake and Sevier Lake. [2] Most of the fish's current and historic range is in Utah, but they are also found in Idaho, Wyoming, and Nevada. This is one of 14 or so recognized subspecies of cutthroat trout native ...
Lahontan cutthroat trout, lake form, from Pyramid Lake, Nevada. 1938 remarks by FDR on the taste of Nevada trout.. The Lahontan cutthroat is native to the drainages of the Truckee River, Humboldt River, Carson River, Walker River, Quinn River, and several smaller rivers in the Great Basin of North America. [6]
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