Publications
USGS divers in the Elwha River
WFRC zebrafish laboratory
Processing a Lost River sucker
Below is a list of available WFRC peer reviewed and published science.
Filter Total Items: 2551
Survival and growth of juvenile Pacific lampreys tagged with passive integrated transponders (PIT) in freshwater and seawater Survival and growth of juvenile Pacific lampreys tagged with passive integrated transponders (PIT) in freshwater and seawater
Tagging methods are needed for both adult and juvenile life stages of Pacific lampreys Lampetra tridentata to better understand their biology and factors contributing to their decline. We developed a safe and efficient technique for tagging juvenile Pacific lampreys with passive integrated transponder (PIT) tags. We tested the short-term survival of PIT-tagged juvenile lampreys in...
Authors
Matthew G. Mesa, Elizabeth S. Copeland, Helena E. Christiansen, Jacob L. Gregg, Sean R. Roon, Paul K. Hershberger
Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world Costs of living for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an increasingly warming and invaded world
Rapid environmental change in freshwater ecosystems has created a need to understand the interactive effects of multiple stressors, with temperature and invasive predators identified as key threats to imperiled fish species. We tested the separate and interactive effects of water temperature and predation by non-native smallmouth bass (Micropterus dolomieu) on the lethal (mortality) and...
Authors
Lauren M. Kuehne, Julian D. Olden, Jeffrey J. Duda
Roles of inflammatory caspases during processing of zebrafish interleukin-1β in Francisella noatunensis infection Roles of inflammatory caspases during processing of zebrafish interleukin-1β in Francisella noatunensis infection
The interleukin-1 family of cytokines are essential for the control of pathogenic microbes but are also responsible for devastating autoimmune pathologies. Consequently, tight regulation of inflammatory processes is essential for maintaining homeostasis. In mammals, interleukin-1 beta (IL-1β) is primarily regulated at two levels, transcription and processing. The main pathway for...
Authors
Lucia N. Vojtech, Nichole Scharping, James C. Woodson, John D. Hansen
Production and characterization of monoclonal antibodies to IgM of Pacific herring (Clupea pallasii) Production and characterization of monoclonal antibodies to IgM of Pacific herring (Clupea pallasii)
Pacific herring (Clupea pallasii) have a central role in the North Pacific ecosystem as a forage fish species and are natural reservoirs of several important finfish pathogens, including Viral hemorrhagic septicemia virus (VHSV). Here, we report the identification of the gene encoding the immunoglobulin mu (IgM) heavy chain, as well as the development and characterization of monoclonal...
Authors
Maureen K. Purcell, Erin S. Bromage, Jessica Silva, John D. Hansen, Samantha M. Badil, James C. Woodson, Paul K. Hershberger
Evaluation of stream flow effects on smolt survival in the Yakima River basin, Washington Evaluation of stream flow effects on smolt survival in the Yakima River basin, Washington
Authors
Courter, Garrison, Tobias J. Kock, Russell W. Perry
Using a non-physical behavioural barrier to alter migration routing of juvenile Chinook salmon in the Sacramento–San Joaquin River Delta Using a non-physical behavioural barrier to alter migration routing of juvenile Chinook salmon in the Sacramento–San Joaquin River Delta
Anthropogenic alterations to river systems, such as irrigation and hydroelectric development, can negatively affect fish populations by reducing survival when fish are routed through potentially dangerous locations. Non-physical barriers using behavioural stimuli are one means of guiding fish away from such locations without obstructing water flow. In the Sacramento–San Joaquin River...
Authors
R.W. Perry, J.G. Romine, N.S. Adams, A.R. Blake, J.R. Burau, S.V. Johnston, T.L. Liedtke
Assessment of juvenile coho salmon movement and behavior in relation to rehabilitation efforts in the Trinity River, California, using PIT tags and radiotelemetry Assessment of juvenile coho salmon movement and behavior in relation to rehabilitation efforts in the Trinity River, California, using PIT tags and radiotelemetry
Coho salmon (Oncorhynchus kisutch) of the Southern Oregon/Northern California Coast (SONCC) Evolutionarily Significant Unit (ESU) is federally listed as a threatened species. The Trinity River Restoration Program (TRRP) is rehabilitating the Trinity River to restore coho salmon (coho) and other salmonid populations. In order to evaluate the program’s actions, several studies of movements...
Authors
Robert Chase, Nina Hemphill, John Beeman, Steve Juhnke, John Hannon, Amy M. Jenkins
Susceptibility of Pacific herring to viral hemorrhagic septicemia is influenced by diet Susceptibility of Pacific herring to viral hemorrhagic septicemia is influenced by diet
Groups of specific-pathogen-free Pacific herring Clupea pallasii were highly susceptible to infection by viral hemorrhagic septicemia virus (VHSV); however, the level of mortality was influenced by diet during the 40–71 d before, during, and after the first exposure to the virus. Cumulative mortality was highest among the herring maintained on an experimental soy-based pellet...
Authors
Joshua Beaulaurier, N. Bickford, J.L. Gregg, C.A. Grady, A.L. Gannam, J. R. Winton, P.K. Hershberger
Salinity adaptation of the invasive New Zealand mud snail (Potamopyrgus antipodarum) in the Columbia River estuary (Pacific Northwest, USA): Physiological and molecular studies Salinity adaptation of the invasive New Zealand mud snail (Potamopyrgus antipodarum) in the Columbia River estuary (Pacific Northwest, USA): Physiological and molecular studies
In this study, we examine salinity stress tolerances of two populations of the invasive species New Zealand mud snail Potamopyrgus antipodarum, one population from a high salinity environment in the Columbia River estuary and the other from a fresh water lake. In 1996, New Zealand mud snails were discovered in the tidal reaches of the Columbia River estuary that is routinely exposed to...
Authors
Marshal Hoy, Bruce L. Boese, Louise Taylor, Deborah Reusser, Rusty Rodriguez
Elevated streamflows increase dam passage by juvenile coho salmon during winter: Implications of climate change in the Pacific Northwest Elevated streamflows increase dam passage by juvenile coho salmon during winter: Implications of climate change in the Pacific Northwest
A 4-year evaluation was conducted to determine the proportion of juvenile coho salmon Oncorhynchus kisutch passing Cowlitz Falls Dam, on the Cowlitz River, Washington, during winter. River and reservoir populations of coho salmon parr were monitored using radiotelemetry to determine if streamflow increases resulted in increased downstream movement and dam passage. This was of interest...
Authors
Tobias J. Kock, Theresa L. Liedtke, Dennis W. Rondorf, John D. Serl, Mike Kohn, Karin A. Bumbaco
Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus Kinetics of viral load and erythrocytic inclusion body formation in pacific herring artificially infected with erythrocytic necrosis virus
Viral erythrocytic necrosis (VEN) is a condition that affects marine and anadromous fish species, including herrings and salmonids, in the Atlantic and Pacific oceans. Infection is frequently associated with severe anemia and causes episodic mortality among wild and hatchery fish when accompanied by additional stressors; VEN can be presumptively diagnosed by (1) light microscopic...
Authors
Jolene A. Glenn, Eveline J. Emmenegger, Courtney A. Grady, Sean R. Roon, Jacob L. Gregg, Carla M. Conway, James R. Winton, Paul K. Hershberger
Viral tropism and pathology associated with viral hemorrhagic septicemia in larval and juvenile Pacific herring Viral tropism and pathology associated with viral hemorrhagic septicemia in larval and juvenile Pacific herring
Viral hemorrhagic septicemia virus (VHSV) genotype IVa causes mass mortality in wild Pacific herring, a species of economic value, in the Northeast Pacific Ocean. Young of the year herring are particularly susceptible and can be carriers of the virus. To understand its pathogenesis, tissue and cellular tropisms of VHSV in larval and juvenile Pacific herring were investigated with
Authors
Jan Lovy, N.L. Lewis, P.K. Hershberger, W. Bennett, T.R. Meyers, K.A. Garver