Western Fisheries Research Center
Research at the WFRC focuses on the environmental factors responsible for the creation, maintenance, and regulation of fish populations including their interactions in aquatic communities and ecosystems. Within these pages you will find research information on Pacific salmon; western trout, charr, and resident riverine fishes; desert and inland fishes; aquatic ecosystems and their resources.
Headquarters and Seattle Research Laboratory
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Research Laboratories and Field Stations
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Identifying Habitat Characteristics for Successful White Sturgeon Recruitment in the Columbia River Basin
The USGS and National Park Service (NPS) have published the first Natural Resource Condition Assessment for Olympic National Park. A Natural Resource Condition Assessment, or NRCA, is a report that evaluates a subset of important natural resources in a NPS Unit.
Phylogeography and evolution of infectious hematopoietic necrosis virus in China
Infectious hematopoietic necrosis virus (IHNV) is a well-known rhabdoviral pathogen of salmonid fish. In this study, a comprehensive analysis of 40 IHNV viruses isolated from thirteen fish farms in nine geographically dispersed Chinese provinces during 2012 to 2017 is presented. Identity of nucleotide and amino acid sequences among all the...Xu, Liming; Zhao, Jingzhuang; Liu, Miao; Kurath, Gael; Breyta, Rachel B.; Ren, Guangming; Yin, Jiasheng; Liu, Hongbai; Lu, Tongyan
Conceptualizing ecological responses to dam removal: If you remove it, what's to come?
One of the desired outcomes of dam decommissioning and removal is the recovery of aquatic and riparian ecosystems. To investigate this common objective, we synthesized information from empirical studies and ecological theory into conceptual models that depict key physical and biological links driving ecological responses to removing dams. We...Bellmore, J. Ryan; Pess, George R.; Duda, Jeffrey J.; O'Connor, Jim E.; East, Amy E.; Foley, Melissa M.; Wilcox, Andrew C.; Major, Jon J.; Shafroth, Patrick B.; Morley, Sarah A.; Magirl, Christopher S.; Anderson, Chauncey W.; Evans, James E.; Torgersen, Christian E.; Craig, Laura S.
A Bayesian life-cycle model to estimate escapement at maximum sustained yield in salmon based on limited information
Life-cycle models combine several strengths for estimating population parameters and biological reference points of harvested species and are particularly useful for those exhibiting distinct habitat shifts and experiencing contrasting environments. Unfortunately, time series data are often limited to counts of adult abundance and harvest. By...Ohlberger, Jan; Brinkman, Samuel J.; Crain, Patrick; Pess, George R.; Duda, Jeffrey J.; Buehrens, Thomas W.; Quinn, Thomas P.; Hilborn , Ray