Research
       Bull Trout
            NE Studies
            Odell
            Hood River
            Upper Klamath
       Redband Trout
            Great Basin
            Klamath Basin
            Blitzen River
            Malheur River
       Cutthroat Trout
            Lahontan
            Westslope
       Lamprey
            Coastal
            Miller Lake
       Oregon Chub
       Sand Roller
       Tui Chub
       Speckled Dace
       Borax Chub
       Warner Sucker
       Goose Lake Fishes

Publications

Jobs

Staff

Links

Home

Northeast Oregon Bull Trout Studies

Bull TroutThe Native Fish Investigations Project began researching questions pertinent to the conservation of bull trout in 1995. The intent of this research is to provide scientific information about the general ecology of bull trout. This will allow threats to existing bull trout populations to be correctly evaluated and management decisions pertaining to bull trout conservation and recovery to be effectively implemented and monitored. Data will also be collected to measure the expected biological outcomes of various management actions and to describe the relative health of bull trout populations. Such data include bull trout distributions at various life stages, description and availability of habitats critical to each life stage, population abundance, genetic description of populations and their relationships to each other, identification of migratory corridors, and description of the interactions between bull trout and sympatric brook trout. Some of these data have already been incorporated into draft recovery plans, and new data will help refine those plans.

Our initial emphasis focused on life history, population structure, and potential limiting factors of bull trout such as the influence of temperature and interactions with brook trout. Field activities occurred throughout the range of Oregon bull trout, and were concentrated in the John Day, Walla Walla, and Grand Ronde River basins. Current and ongoing research also evaluates methods to estimate abundance, and monitor populations at a landscape scale.

Current and Past Research Objectives:

Spawning Surveys on Indian Creek, John Day BasinCurrent
1) Characterize the fine-scale population structuring of bull trout within the John Day River and Grande Ronde River subbasins.

2) Estimate the abundance of migratory and resident adult bull trout in Mill Creek, a tributary to the Walla Walla River, and compare this abundance to counts of redds.

3) Determine the seasonal movements of fluvial bull trout of the Umatilla and Lostine Rivers.

4) Employ a pilot study to evaluate an EMAP probabilistic sampling design to characterize the status, trends, and distribution of adult bull trout populations at the Provincial and Subbasin scale in the Columbia Plateau Province.

 

Past
1) Determine the genetic characteristics of Oregon bull trout populations. (Spruell et al. 2003)

2) Determine distribution of juvenile and adult bull trout and associated habitats in portions of the Grande Ronde, John Day, Deschutes and Walla Walla subbasins.

3) Determine relationships between stream temperature and distribution of bull trout.

4) Determine fluvial and resident life history patterns in the upper John Day and Walla Walla subbasins.

5) Characterize relationships among bull trout and sympatric species. (Gunckel et al. 2002)

6) Establish guidelines to monitor the abundance of bull trout using spawning surveys.

 

Annual Reports and Publications

Starcevich, S.J, P.J. Howell, S.E. Jacobs, and P.M. Sankovich. 2010. Migratory distribution of fluvial adult bull trout in relation to land use and water use in watersheds within the Mid-Columbia and Snake River Basins. Pages 258-266 in R.F. Carline and C. LoSapio, editors. Conserving wild trout. Proceedings of the Wild Trout X symposium, Bozeman, MT. 370 pages. (Copy available at www.wildtroutsymposium.com)

Jacobs, S.E., W. Gaeuman, M.A. Weeber, S.L. Gunckel, and S.J. Starcevich. 2009. Utility of a probabilistic sampling design to determine bull trout population status using redd counts in basins of the Columbia River Plateau. North American Journal of Fisheries Management 29:1590-1604.

Weeber, M.A., S.J. Starcevich, S.E. Jacobs, and P.J. Howell. 2007.Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces.2006 Annual Report. Project 199405400. Bonneville Power Administration, Portland.

Moore, T.L., S.J. Starcevich, S.E. Jacobs, and P.J. Howell. 2006. Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces. 2005 Annual Report. Project 199405400. Bonneville Power Administration, Portland.

Starcevich, S.J., S.E. Jacobs, and P.J. Howell. 2005. Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces. 2004 Annual Report. Project 199405400. Bonneville Power Administration, Portland.

Sankovich, P.M, S.J. Starcevich, A.R. Hemmingsen , S.L.Gunckel, and P.J. Howell. 2004. Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau and Blue Mountain Provinces. 2003 Annual Report. Project 199405400. Bonneville Power Administration, Portland.

Sankovich, P.M., S.L. Gunckel, A.R. Hemmingsen, I.A. Tattam, and P.J. Howell. 2003. Migratory patterns, structure, abundance, and status of bull trout populations from subbasins in the Columbia Plateau. 2002 Annual Report. Project 199405400. Bonneville Power Administration, Portland.

Spruell, P, A.R. Hemmingsen, P.J. Howell, N. Kanda, and F.W. Allendorf. 2003. Conservation genetics of bull trout: geographic distribution of variation at microsatellite loci. Conservation Genetics 4: 17-29.

Gunckel, S.L., A.R. Hemmingsen, and J.L. Li 2002. Effect of bull trout and brook trout interactions on foraging habitat, feeding behavior, and growth. Transactions of the American Fisheries Society 131: 1119-1130.

Hemmingsen, A.R., S.L. Gunckel, P.M. Sankovich, and P.J. Howell. 2002. Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. 2001 Annual Report. Project 199405400, Bonneville Power Administration. Portland.

Hemmingsen, A.R., S.L. Gunckel, P.M. Sankovich, and P.J. Howell. 2001d. Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. 2000 Annual Report. Project 199405400, Bonneville Power Administration. Portland.

Hemmingsen, A.R., S.L. Gunckel, and P.J. Howell. 2001c. Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. 1999 Annual Report. Project 199405400, Bonneville Power Administration. Portland.

Gunckel, S.L. 2001. Feeding behavior and diet of native bull trout Salvelinus confluentus and introduced brook trout S. fontinalis in two eastern Oregon streams. Master's Thesis. Oregon State University, Corvallis.

Hemmingsen, A.R., B.L. Bellerud, S.L. Gunckel and P.J. Howell. 2001b. Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. 1998 Annual Report. Project 199405400, Bonneville Power Administration. Portland.

Hemmingsen, A.R., B.L. Bellerud, D.V. Buchanan, S.L. Gunckel, J.S. Shappart, and P.J. Howell. 2001a. Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. 1997 Annual Report. Project 199405400, Bonneville Power Administration. Portland.

Bellerud, B.L., S. Gunckel, A.R. Hemmingsen, D.V. Buchanan, and P.J. Howell. 1997. Bull trout life history, genetics, habitat needs, and limiting factors in central and northeast Oregon. 1996 Annual Report. Project 199405400, Bonneville Power Administration. Portland.

Spruell, P., and F.W. Allendorff. 1997. Nuclear DNA analysis of Oregon bull trout, Report 97/5. Oregon Department of Fish and Wildlife. Portland.

Hemmingsen, A.R., D.V. Buchanan, and P.J. Howell. 1996. Bull trout life history, genetics, habitat needs, and limiting facotrs in central and northeast Oregon. 1995 Annual Report. Project 94-54, Bonneville Power Administration. Portland.

 

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