Sentences with phrase «bull trout»

The sport fish, introduced in lakes over the past 100 years, have outcompeted native bull trout in many of them.

USGS research ecologist Clint Muhlfeld is part of National Park Service efforts to restore native bull trout in Glacier National Park.

Are brown trout replacing or displacing bull trout populations in a changing climate?

And even if the introduced bull trout move back downstream, they will only land back in Logging Lake.

In 2014, they relocated 125 bull trout from Logging Lake to Grace Lake.

Now back in 1928, why...» The point is that in the old days the rivers were stiff with giant bull trout and deer wandered the countryside in grand herds like Idaho sheep.

In Montana's glacial lakes, biologists deploy an unusual weapon to defend native bull trout against an invader.

It poses an even bigger challenge than Quartz: Here, lake trout have already taken over, and there are few bull trout left.

The risks seem minimal, and the alternative is to watch bull trout disappear from the ecosystem, he says.

In the same ruling, U.S. District Judge Donald Molloy declined to block plans for roads and logging in two other Montana forests tied to conservationists» claims they would harm imperiled bull trout.

Researchers Jon McCubbins (foreground), Clint Muhlfeld (middle) and Andrew Lamont capture bull trout to relocate.

Endangered bull trout, steelhead trout, Chinook salmon, and sockeye salmon require cold, clear water in mountain streams to thrive and reproduce.

Evidence of climate - induced range contractions in bull trout Salvelinus confluentus in a Rocky Mountain watershed, USA.

They also provide habitat for rare and temperature - sensitive species like bull trout (Salvelinus confluentus), cutthroat trout (Oncorhynchus clarkii), and pearlshell mussels (Margaritifera margaritifera).

«The intention here is to save some of the last remaining bull trout populations and create new ones that will survive under a warming climate,» says Clint Muhlfeld, a research ecologist with the U.S. Geological Survey.

The native bull trout population is exploding, with more nests and some of the highest spawning counts on record.

They're determined to get rid of the lake trout, or at least keep the population low enough that the native bull trout have a chance to thrive.

But on Quartz Lake, Muhlfeld and his team worked with the National Park Service to deploy a weapon they believe will greatly improve the bull trout's odds: the Judas fish.

The Judas fish has been a blessing for the bull trout of Quartz Lake.

They don't know yet how many of the bull trout they've moved have survived.

The hope is that the bull trout will thrive in Grace Lake and the fish will eventually return to Logging Lake.

Then, the teams haul in the invasive species and slaughter them in an effort to aid native bull trout.

This is a bull trout, a popular fish species of conservation concern, that find shelter in mountain stream climate refugia.

This migration pattern, called anadromy, is seen in salmon and steelhead as well as some cutthroat and bull trout.

Other Pacific trout, including sea - run cutthroat and bull trout, which are listed as threatened in Washington, might also retire given the right ecological circumstances.

Bull trout (Salvelinus confluentus) are members of the «trout» family Salmonidae, like salmon, grayling, and whitefish.

So it was with no small degree of initial surprise when fish biologists in Montana first announced that they were relocating a number of bull trout to new areas since their traditional waters were heating up thanks to climate change.

While some biologists have moved trees and butterflies to cooler areas in to protect them from climate change, the project to move the bull trout in Montana is the boldest translocation yet, notes NPR.