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YELLOWSTONE NATIONAL PARK, Wyo. (AP) - The Yellowstone cutthroat trout population in the nation's oldest national park "appears to be in peril," according to a new scientific journal article by National Park Service scientists.
The article in Fisheries, the magazine of the American Fisheries Society, cites a population decline of at least 60 percent in Yellowstone Lake, the fish's largest refuge.
While Yellowstone National Park's largest lake once held millions of members of the cutthroat trout subspecies, netting, testing and mathematical models suggest that "only a fraction of that population exists today," says the article written by aquatic specialists in the park.
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