March 31, 2010

  • Park hopes to reduce invasive trout species The only native trout in Yellowstone National Park are Yellowstone and Westslope Cutthroat, and Arctic Grayling. Over the years those species have been reduced in population due to competition, predation, and hybridization due to other introduced trout. Lake trout, brown trout, and rainbow trout have become well established…

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