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Trout vs. Trout at Yellowstone National Park
By Angela Messina, January 26, 2013 @ 02:27 PM (EST)
Source: National Geographic

In Yellowstone Lake, the native Yellowstone cutthroat trout are endangered by the presence of invasive lake trout.

Yellowstone cutthroat are small, copper-colored fish with black spots and red-hued gills. Because of their smaller size, they often present themselves as a meal for the larger lake trout. Lake trout also dwell in deeper waters, out of reach from eagles, bears, otters, and osprey that would otherwise prey on them.

The Yellowstone National Park Service has employed commercial fishermen to catch and kill the invasive fish, and already more than 300,000 lake trout have been removed from the lake. Additionally, researchers have attached transmitters to individual lake trout in the hopes that they will discover their spawning grounds.

Despite all this effort, the battle is far from being won, and the Park Service has more work to do before the Yellowstone cutthroat is fully restored.   

Read more here and see photographs of the trout.



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