Overfishing, destruction of spawning habitat and introduction of non-native game fish — particularly the Mackinaw — combined to decimate the cutthroat population at Lake Tahoe, with the fish ...

Cutthroat trout (oncorhynchus clarkii) is a species of freshwater fish in the salmon family. The name “cutthroat” refers to the distinct red color on the underside of the fish’s lower jaw. They are ...

Upstream, as the water got skinnier, individuals and pairs hung out on spawning beds. "That's a pretty cool place," said Todd Koel, a fisheries biologist for Yellowstone National Park.

According to the park’s website: “The number of Yellowstone cutthroat trout spawning at Clear Creek peaked at more than 70,000 in 1978 and fell to 538 by 2007.

For over 100 years, one obstacle remained in restoring the historic spawning route for Lahontan cutthroat trout between Lake Tahoe and Pyramid Lake: Derby Dam.

SILVER GATE — In the 1960s and '70s, Nellie Israel remembers counting 200 spawning Yellowstone cutthroat trout in the small tributary to Soda Butte Creek that meanders through this town ...

One stream dropped from 50,000 spawning cutthroat in the 1980s to 500 by 2005, Gresswell says. Grizzly bears, ospreys, and bald eagles, ...

Cutthroat trout, seen here spawning in the Gros Ventre River, are highly prized by anglers. Adapted to cold water, they’re threatened by a warming climate—and in Yellowstone Lake, by non ...

Spawning usually occurs when water temperatures range between 43 and 46 degrees Fahrenheit and female cutthroat deposit 200 to 4,000 eggs in spawning redds (nests) constructed in stream gravel ...

DURANGO, Colo. – After nearly a two-year wait, Colorado Parks and Wildlife hatchery staff and biologists in Durango have spawned a new lineage of Colorado River cutthroat trout that were rescued ...

Biologists went to the north shore of Yellowstone Lake last year to look for spawning Yellowstone cutthroat trout. Six years earlier, they had counted more than 2,300 at Bridge Creek. But at the ...

Colorado Parks and Wildlife teamed up with the U.S. Forest Service Tuesday morning to spawn one of the rarest breeds of fish in the United States — the greenback cutthroat trout. Adopted as the ...