UPPER WILLAMETTE RIVER BULL
Populations of bull trout Salvelinus
confluentus have declined markedly over the last century as a consequence of
habitat alteration, introduction of nonnative species, overharvest, and
eradication efforts. Accordingly, the U. S. Fish and Wildlife Service listed
bull trout as threatened in the coterminous United States under the Endangered
Species Act in 1999. Bull trout are native to the Willamette River basin and
presently occupy the McKenzie River and Middle Fork Willamette River drainages.
ODFW, in cooperation with agencies participating in the Upper Willamette Bull
Trout Working Group, has conducted research, monitoring, and bull trout
translocation efforts for more than two decades.
Willamette Basin Bull Trout Action Plan 2010