In what year did the U.S. Fish and Wildlife Service list the bull trout as threatened under the Endangered Species Act across most of its U.S. range?
Answer
1998
By the latter half of the 20th century, the severe decline in bull trout populations across their native range necessitated federal intervention. In the specific year of 1998, the U.S. Fish and Wildlife Service officially classified the bull trout as a threatened species under the framework of the Endangered Species Act (ESA) across the majority of its distribution within the United States. This listing immediately imposed significant legal obligations on federal agencies, requiring them to actively manage their activities to prevent jeopardy to the species or the destruction of its designated critical habitat, marking a major shift toward structured recovery efforts.
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