Invasive lake trout arrived in Yellowstone National Park 25 years ago, quickly creating mayhem as they devoured native cutthroat trout and drove the system to the brink of ecological collapse.

(Watch: "Revealing the Secret World of Yellowstone’s Wildlife.") Three converging forces have set off a lethal chain reaction: the rippling impacts of an exotic fish—lake trout—that have ...

A marina owner at Flaming Gorge told Cowboy State Daily on Wednesday that lake trout are gobbling too many prized kokanee ...

The consequences of releasing fish tank pets into West Newton Lake will significantly change fishing for about a decade at ...

That's because Yellowstone Lake is home to North America's largest population of wild cutthroat trout. To fish in Yellowstone, anglers must obtain an online permit, only fish in designated areas ...

A new study shows that after sea lamprey control efforts were stopped or scaled back during the COVID-19 pandemic, the invasive species ... of wounds reported on lake trout and other sport fish ...