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Upper Klamath Basin Bull Trout

Boulder Creek Bull Trout

Klamath River bull trout were listed as threatened under the federal Endangered Species Act in 1998. In the final listing rule, seven subpopulations were identified within the Klamath River basin: Threemile and Sun Creeks (tributaries to Upper Klamath Lake), Long Creek (tributary to the Sycan River); and Deming, Leonard, Brownsworth and Boulder/Dixon Creeks (tributaries to the upper Sprague River). All of these populations are considered “precariously low.”  However, very little current information is available for Leonard, Deming or Boulder/Dixon Creeks. 

Electrofishing Leonard CreekIn 2005, the Native Fish Investigations Project and Klamath Watershed District initiated quantitative electrofishing surveys in Leonard, Deming, Sheepy, and Boulder/Dixon Creeks.  Our goal was to obtain current information about the distribution and abundance of redband and bull trout within the Sprague River subbasin.

 

Annual Reports and Publications:

Hartill, T and S.E. Jacobs. 2007.  Distribution and abundance of bull trout in the upper Sprague River (Upper Klamath Basin), 2006.  Oregon Department of Fish and Wildlife Interim Report. Corvallis.

Moore,T. 2006. Distribution and abundance of bull trout and redband trout in Leonard and Deming Creeks, July and August, 2005.  Oregon Department of Fish and Wildlife Interim Report. Corvallis.

 

Relevant Information:

ODFW Oregon Native Fish Status Report (2005)

Send comments or questions regarding this webpage to  Shaun.Clements@oregonstate.edu