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: 2517
Hybridization between historically allopatric Chinook salmon populations in the White Salmon River, WA Hybridization between historically allopatric Chinook salmon populations in the White Salmon River, WA
Chinook Salmon spawning in the White Salmon River consist of members of three historically distinct populations: spring Chinook Salmon, Tule fall Chinook Salmon and Upriver Bright (URB) fall Chinook Salmon. Previous work examined juveniles captured in 2006-2008 and reported hybridization between introduced URBs, and the native threatened Tules. Recent increases in nearby hatchery URB...
Authors
Christian A. Smith, Jennifer Von Bargen, Justin H. Bohling, David Hand, Ian Jezorek
Neither microcystin, nor nodularin, nor cylindrospermopsin directly interact with human toll-like receptors Neither microcystin, nor nodularin, nor cylindrospermopsin directly interact with human toll-like receptors
Various stressors including temperature, environmental chemicals, and toxins can have profound impacts on immunity to pathogens. Increased eutrophication near rivers and lakes coupled with climate change are predicted to lead to increased algal blooms. Currently, the effects of cyanobacterial toxins on disease resistance in mammals is a largely unexplored area of research. Recent studies...
Authors
John D. Hansen, Keith A. Loftin, Zachary R. Laughrey, Ondrei Adamovsky
Juvenile Chinook salmon survival, travel time, and floodplain use relative to riverine channels in the Sacramento–San Joaquin River Delta Juvenile Chinook salmon survival, travel time, and floodplain use relative to riverine channels in the Sacramento–San Joaquin River Delta
Floodplains provide multiple benefits to both resident and migratory fish species, including juvenile Chinook Salmon Oncorhynchus tshawytscha, but direct comparisons of survival during migration through a floodplain versus riverine routes are scarce. The Yolo Bypass is a broad floodplain of the Sacramento River that floods in about 30% of years in response to large, uncontrolled runoff...
Authors
Adam Pope, Russell Perry, Brett N. Harvey, Dalton Hance, Hal C Hansel
Collection of larval lampreys (Entosphenus tridentatus and Lampetra spp.) using a portable suction dredge—A pilot test Collection of larval lampreys (Entosphenus tridentatus and Lampetra spp.) using a portable suction dredge—A pilot test
A portable suction-dredge and sluice-box system were used to collect larval lampreys (Entosphenus tridentatus and Lampetra spp.) from fine and coarse sediment in field and laboratory tests. We evaluated the injury rate, survival, and burrowing capability of lamprey following passage through the dredge system and used collection of lamprey from water without sediment as a control. The...
Authors
Theresa L. Liedtke, Joseph J. Skalicky, Lisa K. Weiland
Novel diagnostic tests for the putative agent of bacterial gill disease in Pacific razor clams (Siliqua patula) Novel diagnostic tests for the putative agent of bacterial gill disease in Pacific razor clams (Siliqua patula)
Nuclear inclusion X (NIX) is a gamma proteobacteria that infects the nuclei of gill epithelial cells in Pacific razor clams. NIX has been associated with clam die-offs in coastal Washington. A quantitative PCR (qPCR) assay was developed to detect NIX in Pacific razor clams, and assay specificity was confirmed by chromogenic in situ hybridization (CISH). Both tests were applied to...
Authors
Brooke A Travis, William N. Batts, Maya Groner, Paul Hershberger, Steven C. Fradkin, Carla M. Conway, Linda Park, Maureen K. Purcell
Predator and prey events at the entrance of a surface‐oriented fish collector at North Fork Dam, Oregon Predator and prey events at the entrance of a surface‐oriented fish collector at North Fork Dam, Oregon
Quantifiable estimates of predator–prey interactions and relationships in aquatic habitats are difficult to obtain and rare, especially when individuals cannot be readily observed. To overcome this observational impediment, imaging sonar was used to assess the cooccurrence of predator‐size fish and juvenile salmonids, Oncorhynchus spp., at the entrance to a floating surface collector...
Authors
Collin D. Smith, John Plumb, Noah S. Adams, Garth J Wyatt
Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems Review of trap-and-haul for managing Pacific salmonids (Oncorhynchus spp.) in impounded river systems
High-head dams are migration barriers for Pacific salmon Oncorhynchus spp. in many river systems and recovery measures for impacted stocks are limited. Trap-and-haul has been widely used in attempts to facilitate recovery but information from existing programs has not been synthesized to inform improvements to aid recovery of salmonids in systems with high-head dams. We reviewed 17 trap...
Authors
Tobias J. Kock, John W. Ferguson, Matthew L. Keefer, Carl B. Schreck
Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii as a host for Argulus pugettensis (Crustacea, Branchiura): Parasite prevalence, intensity and distribution Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii as a host for Argulus pugettensis (Crustacea, Branchiura): Parasite prevalence, intensity and distribution
Coastal cutthroat trout [Oncorhynchus clarkii clarkii (Richardson, 1836)] from the marine waters of Puget Sound, WA, was documented as a new host for the ectoparasite Argulus pugettensis (Dana, 1852). The prevalence of A. pugettensis was 66% (49 of 74) on cutthroat trout and 0% (0 of 55) on coho salmon [O. kisutch (Walbaum, 1792)] collected during the winter of 2017/2018. Infestations...
Authors
James P Losee, Simon R M Jones, Caitlin A E McKinstry, William N. Batts, Paul Hershberger
Fish assemblages in eelgrass beds of Bellingham Bay, Washington, Northern Puget Sound, 2019 Fish assemblages in eelgrass beds of Bellingham Bay, Washington, Northern Puget Sound, 2019
Puget Sound is a critical part of the Pacific Northwest, both culturally and economically. Eelgrass beds are an important feature of Puget Sound and are known to influence fish assemblages. As part of a larger site-characterization effort, and to gain a better understanding of the fish assemblages in Bellingham Bay, Washington, four eelgrass beds (Zostera marina) along the shoreline were...
Authors
Morgan I. Andrews, Theresa L. Liedtke
Maternal transfer of polychlorinated biphenyls in Pacific sand lance (Ammodytes personatus), Puget Sound, Washington Maternal transfer of polychlorinated biphenyls in Pacific sand lance (Ammodytes personatus), Puget Sound, Washington
We measured polychlorinated biphenyls (PCBs) in multiple age and size classes of Pacific sand lance (Ammodytes personatus), including eggs, young-of-the year, and adults to evaluate maternal transfer as a pathway for contaminant uptake and to add to the limited information on the occurrence of PCBs in sand lance in Puget Sound. Sampling was replicated at an urban embayment (Eagle Harbor)...
Authors
Theresa L. Liedtke, Kathleen E. Conn
Pacific herring Clupea pallasii are not susceptible to vibriosis from Vibrio anguillarum or V. ordalii under laboratory conditions Pacific herring Clupea pallasii are not susceptible to vibriosis from Vibrio anguillarum or V. ordalii under laboratory conditions
The ubiquity of Vibrio spp. throughout the coastal marine waters of the Pacific Northwest of North America raises questions about the susceptibility of native marine fishes, including Pacific herring (Clupea pallasii). Early reports of Vibriolike disease (Rucker et al., 1954; Walford, 1958) and Vibrio sp. isolations (Pacha & Kiehn, 1969) in Pacific herring remain questionable because...
Authors
Paul Hershberger, M.E.T Stinson, Brenda L Hall, Ashley MacKenzie, Jacob L. Gregg, William August Richards, James Winton