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Publications

Below is a list of available WFRC peer reviewed and published science.

Filter Total Items: 2525

Physiological development and migratory behavior of subyearling fall chinook salmon in the Columbia River Physiological development and migratory behavior of subyearling fall chinook salmon in the Columbia River

We describe the migratory behavior and physiological development of subyearling fall chinook salmon Oncorhynchus tshawytscha migrating through John Day Reservoir on the Columbia River, Washington and Oregon. Fish were freeze-branded and coded-wire-tagged at McNary Dam, Oregon, from 1991 to 1994, to determine travel time to John Day Dam and subsequent adult contribution. Stepwise multiple
Authors
K.F. Tiffan, D.W. Rondorf, P.G. Wagner

Assessment of smolt condition for travel time analysis. Annual report 1993-1994 Assessment of smolt condition for travel time analysis. Annual report 1993-1994

Abstract not available
Authors
R. M. Schrock, P.V. Haner, K.M. Hans, J.W. Beeman, S. P. VanderKooi, J.D. Hotchkiss, P.A. Petrusso, S.G. Smith, A.G. Maule

Stress resistance strategy in an arid land shrub: interactions between developmental instability and fractal dimention Stress resistance strategy in an arid land shrub: interactions between developmental instability and fractal dimention

This paper investigates allocation of energy to mechanisms that generate and preserve architectural forms (i.e. developmental stability, complexity of branching patterns) and productivity (growth and reproduction) in response to environmental disturbances (i.e. grazing and resource availability). The statistical error in translational symmetry was used to detect random intra-individual...
Authors
J. Escos, C.L. Alados, F. I. Pugnaire, J. Puigdefabregas, J. Emlen

Evaluation of the prototype surface bypass for salmonid smolts in Spring 1996 and 1997 at Lower Granite Dam on the Snake River, Washington Evaluation of the prototype surface bypass for salmonid smolts in Spring 1996 and 1997 at Lower Granite Dam on the Snake River, Washington

In spring 1996 and 1997, we studied the prototype surface bypass and collector (SBC) at Lower Granite Dam on the Snake River in Washington. Our objectives were to determine the most efficient SBC configuration and to describe smolt movements and swimming behavior in the forebay. To do this, we used hydroacoustic and radiotelemetry techniques. The SBC was retrofitted onto the upstream...
Authors
G. E. Johnson, N.S. Adams, Robert L. Johnson, D.W. Rondorf, D.D. Dauble, T.Y. Barila

Progression and severity of gas bubble trauma in juvenile salmonids Progression and severity of gas bubble trauma in juvenile salmonids

We conducted laboratory experiments to assess the progression and to quantify the severity of signs of gas bubble trauma (GBT) in juvenile chinook salmon Oncorhynchus tshawytscha and steelhead Oncorhynchus mykiss exposed to different levels of total dissolved gas (TDG), and we attempted to relate these signs to the likelihood of mortality. When fish were exposed to 110% TDG for up to 22...
Authors
M.G. Mesa, L.K. Weiland, A.G. Maule

Dynamics of prey moving through a predator field: a model of migrating juvenile salmon Dynamics of prey moving through a predator field: a model of migrating juvenile salmon

The migration of a patch of prey through a field of relatively stationary predators is a situation that occurs frequently in nature. Making quantitative predictions concerning such phenomena may be difficult, however, because factors such as the number of the prey in the patch, the spatial length and velocity of the patch, and the feeding rate and satiation of the predators all interact...
Authors
J.H. Petersen, D.L. DeAngelis
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