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Publications

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

Filter Total Items: 2517

Spring viremia of carp Spring viremia of carp

No abstract available
Authors
A.E. Goodwin, J. R. Winton

Bigger is not always better for overwintering young-of-year steelhead Bigger is not always better for overwintering young-of-year steelhead

Many fishes occur across broad ranges of latitude and elevation, where winter temperatures can vary from mild to harsh. We conducted a laboratory experiment with three sizes of age-0 steelhead Oncorhynchus mykiss to examine growth, condition, and energy reserves under low rations at three levels of water temperature typical of this species' distribution during winter. At the end of the...
Authors
P.J. Connolly, J.H. Petersen

Thermal exposure of juvenile fall chinook salmon migrating through a lower Snake River Reservoir Thermal exposure of juvenile fall chinook salmon migrating through a lower Snake River Reservoir

Impoundment of the Snake River, Washington, has resulted in high water temperatures and late seaward migration of juvenile fall chinook salmon during summer months. To determine if juvenile fall chinook salmon are exposed to temperatures higher than the upper incipient lethal, we tagged groups of fish with temperature-sensing radio tags and tracked them in Little Goose Reservoir on the...
Authors
K.F. Tiffan, C. A. Haskell, D.W. Rondorf

Migration of precocious male hatchery chinook salmon in the Umatilla River, Oregon Migration of precocious male hatchery chinook salmon in the Umatilla River, Oregon

Between 1993 and 2000, precocious yearling males of hatchery-produced fall and spring chinook salmon Oncorhynchus tshawytscha composed 3.6-82.1% of chinook salmon runs to the Umatilla River, Oregon. These yearling males are smaller than typical jack salmon, which spend a full winter in the ocean, and are commonly referred to as "mini jacks." Minijack fall chinook salmon are characterized...
Authors
Christian E. Zimmerman, R.W. Stonecypher, M.C. Hayes

Molecular epidemiology of infectious hematopoietic necrosis virus reveals complex virus traffic and evolution within southern Idaho aquaculture Molecular epidemiology of infectious hematopoietic necrosis virus reveals complex virus traffic and evolution within southern Idaho aquaculture

Infectious hematopoietic necrosis virus (IHNV) is a rhabdovirus which infects salmon and trout and may cause disease with up to 90% mortality. In the Hagerman Valley of Idaho, IHNV is endemic or epidemic among numerous fish farms and resource mitigation hatcheries. A previous study characterizing the genetic diversity among 84 IHNV isolates at 4 virus-endemic rainbow trout farms...
Authors
R.M. Troyer, Gael Kurath

Swimming performance and physiological responses to exhaustive exercise in radio-tagged and untagged Pacific lampreys Swimming performance and physiological responses to exhaustive exercise in radio-tagged and untagged Pacific lampreys

Populations of Pacific lamprey Lampetra tridentata have declined in the Columbia River basin. One factor that may have contributed to this reduction in population size is an excessive use of energy by adult lampreys as they negotiate fishways at dams during spawning migrations. To gain an understanding of the performance capacity of Pacific lampreys, we estimated the critical swimming...
Authors
M.G. Mesa, J.M. Bayer, J.G. Seelye

Lateral line pore diameters correlate with the development of gas bubble trauma signs in several Columbia River fishes Lateral line pore diameters correlate with the development of gas bubble trauma signs in several Columbia River fishes

Gas bubble trauma (GBT) caused by gas supersaturation of river water continues to be a problem in the Columbia River Basin. A common indicator of GBT is the percent of the lateral line occluded with gas bubbles; however, this effect has never been examined in relation to lateral line morphology. The effects of 115, 125 and 130% total dissolved gas levels were evaluated on five fish...
Authors
R.G. Morris, J.W. Beeman, S. P. VanderKooi, A.G. Maule

Relative resistance of Pacific salmon to infectious salmon anaemia virus Relative resistance of Pacific salmon to infectious salmon anaemia virus

Infectious salmon anaemia (ISA) is a major disease of Atlantic salmon, Salmo salar, caused by an orthomyxovirus (ISAV). Increases in global aqua culture and the international movement of fish made it important to determine if Pacific salmon are at risk. Steelhead trout, Oncorhynchus mykiss, and chum, O. keta, Chinook, O. tshawytscha, coho, O. kisutch, and Atlantic salmon were injected
Authors
J.B. Rolland, J. R. Winton

A comparison of visual prey detection among species of piscivorous salmonids: Effects of light and low turbidities A comparison of visual prey detection among species of piscivorous salmonids: Effects of light and low turbidities

Differences in reaction distance to prey fish by piscivorous salmonids can alter predator–prey interactions under different visual conditions. We compared reaction distances of three piscivorous salmonids commonly found in western lakes: cutthroat trout, Oncorhynchus clarki utah, rainbow trout, O. mykiss, and the nonnative lake char, Salvelinus namaycush. Reaction distances to salmonid...
Authors
Michael M. Mazur, David A. Beauchamp
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