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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 plan is part of an effort to protect and establish secure populations of native westslope cutthroat trout and bull trout. Native westslope cutthroat trout — a state-listed species of concern ...
A trout exception on Whitefish Lake is also poised to undergo a reversal. Officials are recommending the state do away with the rule limiting anglers on the lake to 20 fish daily with just one ...
6PPD-quinone is of environmental concern because it is toxic to coho salmon, killing them before they spawn in freshwater streams. [14] [15] [16] A 2022 study also identified the toxic impact on species like brook trout and rainbow trout. [17] The published lethal concentrations are: [17] [18] coho salmon: LC 50 = 0.095 μg/L; brook trout: LC ...
Westslope cutthroat trout. There are at least 31 game and 59 non-game fish species known to occur in Montana. [1] Among Montana's fish, three are listed as endangered or threatened species and the Montana Department of Fish, Wildlife and Parks lists a number of species as species of concern.
Carpenter Creek is one of 10 streams in the Little Belts that still support a population of around 591 Western cutthroat trout. Neihart fish barrier proposed to save last of Belt Creek's Western ...
The Snake River fine-spotted cutthroat trout (Oncorhynchus clarki sp.) is one of three subspecies of cutthroat trout found in Yellowstone. As its name suggests, this species is found in the Snake River drainages of the park. Some fisheries scientists consider the Snake River subspecies the same as the Yellowstone subspecies.
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