Western Fisheries Research Center

Publications

Filter Total Items: 2,251
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Year Published: 2019

Effects of 21st century climate, land use, and disturbances on ecosystem carbon balance in California

Terrestrial ecosystems are an important sink for atmospheric carbon dioxide (CO2), sequestering ~30% of annual anthropogenic emissions and slowing the rise of atmospheric CO2. However, the future direction and magnitude of the land sink is highly uncertain. We examined how historical and projected changes in climate, land use, and ecosystem...

Sleeter, Benjamin M.; David Marvin; D. Richard Cameron; Selmants, Paul; LeRoy Westerling; Kreitler, Jason R.; Colin Daniel; Liu, Jinxun; Wilson, Tamara

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Year Published: 2019

Effectiveness of fish screens in protecting lamprey (Entosphenus and Lampetra spp.) ammocoetes—Pilot testing of variable screen angle

Thousands of screened water diversions throughout the Columbia River Basin of the Pacific Northwest are sources of entrainment (unintended diversion into an unsafe passage route), injury, and mortality for a range of fish species and screening criteria have been developed to reduce and mitigate these effects. Large knowledge gaps exist concerning...

Liedtke, Theresa L.; Didricksen, Daniel J.; Weiland, Lisa K.; Ragala, Joshua A.; Lampman, Ralph
Liedtke, T.L., Didricksen, D.J., Weiland, L.K., Rogala, J.A., and Lampman, R., 2019, Effectiveness of fish screens in protecting lamprey (Entosphenus and Lampetra spp.) ammocoetes—Pilot testing of variable screen angle: U.S. Geological Survey Open-File Report 2019-1044, 21 p., https://doi.org/10.3133/ofr20191044.

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Year Published: 2019

Skin and fin diseases

Fish are critically important to the welfare of this planet and its occupants, the health of both wild and captive fish populations paramount to our survival. This book presents the gross pathology of the most commonly encountered diseases and syndromes of fish in an organ system-based approach. It provides an overview of the diseases and...

Smith, Pedro; Elliott, Diane; Bruno, David W; Smith, Stephen A

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Year Published: 2019

Research, monitoring, and evaluation of emerging issues and measures to recover the Snake River fall Chinook Salmon ESU

The portion of the Snake River fall Chinook Salmon Oncorhynchus tshawytscha ESU that spawns upstream of Lower Granite Dam transitioned from low to high abundance during 1992–2018 in association with U.S. Endangered Species Act recovery efforts and other federally mandated actions. This annual report focuses on (1) numeric and habitat use responses...

Tiffan, Kenneth; Perry, Russell; Plumb, John; Hance, Dalton; Bickford, Brad; Rhodes, Tobyn

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Year Published: 2019

Polychlorinated biphenyls (PCBs) in the Pacific sand lance, Puget Sound, Washington

Forage fish are small, abundant, schooling planktivores that form a critical link in marine food webs by transferring energy from plankton up to birds, fishes, and marine mammals. Forage fishes in Puget Sound include the iconic Pacific herring as well as lesser known species such as surf smelt and the Pacific sand lance. There are significant...

Liedtke, Theresa; Conn, Kathleen; Dinicola, Richard; Takesue, Renee
Liedtke, T., K. Conn, R. Dinicola, and R. Takesue. 2019. Polychlorinated biphenyls (PCBs) in the Pacific sand lance, Puget Sound, Washington. Page 50 in PSEMP Toxics Work Group. 2019. 2018 Salish Sea Toxics Monitoring Synthesis: A Selection of Research. C.A. James, R. Jordan, M. Langness, J. Lanksbury, D. Lester, S. O’Neill, K. Song, and C. Sullivan, eds. Puget Sound Ecosystem Monitoring Program. Tacoma, WA.

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Year Published: 2019

Fall Chinook salmon (Oncorhynchus tshawytscha), sand roller (Percopsis transmontana), and smallmouth bass (Micropterus dolomieu) interactions in a Snake River reservoir: A tale of three species

We studied some of the relationships between federally listed fall Chinook Salmon, Oncorhynchus tshawytscha, endemic Sand Roller, Percopsis transmontana, and non-native Smallmouth Bass, Micropterus dolomieu, in Lower Granite Reservoir on the Snake River. Because of its recent reappearance and population increase, the Sand Rollers...

Hemingway, Rulon J.; Tiffan, Kenneth F.; Erhardt, John M.; Rhodes, Tobyn N.; Bickford, Brad K.

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Year Published: 2019

Complete genome sequences of the index isolates of two genotypes of Pacific salmon paramyxovirus

We report here the genome sequences of two index strains of Pacific salmon paramyxovirus isolated in 1982 and 1983 from adult salmon in Oregon. The isolates are most closely related to Atlantic salmon paramyxovirus, the type species of the genus Aquaparamyxovirus, but are sufficiently distinct to be considered two genotypes of a novel species.

Winton, James; Batts, William N.; Powers, Rachel L.; Purcell, Maureen K.

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Year Published: 2019

The glycoprotein, non-virion protein, and polymerase of viral hemorrhagic septicemia virus are not determinants of host-specific virulence in rainbow trout

Viral hemorrhagic septicemia virus (VHSV), a fish rhabdovirus belonging to the Novirhabdovirus genus, causes severe disease and mortality in many marine and freshwater fish species worldwide. VHSV isolates are classified into four genotypes and each group is endemic to specific geographic regions in the north Atlantic and Pacific Oceans. Most...

Yusuff, Shamila; Kurath, Gael; Kim, Min Sun; Tesfaye, Tarin M; Liu, Jie; Mckenney, Douglas; Vakharia, Vikram N

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Year Published: 2019

Modelling sea lice control by lumpfish on Atlantic salmon farms: interactions with mate limitation, temperature, and treatment rules

Atlantic salmon farming is one of the largest aquaculture sectors in the world. A major impact on farm economics, fish welfare, and potentially nearby wild salmonid populations, is the sea louse ectoparasite Lepeophtheirus salmonis. Sea louse infestations are most often controlled through application of chemicals, but in most farming regions...

McEwan, Gregor F.; Groner, Maya L.; Cohen, Allegra A. B.; Imsland, Albert K. D.; Revie, Crawford W.

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Year Published: 2019

Complexities, context, and new information about the Elwha River

Recently, Hand et al. (2018) discussed the socio- ecological complexities surround-ing natural resource policy, science, and management in the Columbia River Basin, using a case study of dam removal on the Elwha River in Washington State (WebFigure 1a). We feel compelled to provide additional historical context and correct some of the information...

Duda, Jeff; Anderson, Joseph H; Beirne, Matt M.; Brenkman, S.J.; Crain, Patrick; Mahan, John; McHenry, Michael; Pess, George ; Peters, Roger; Winter, Brian

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Year Published: 2019

Evaluation of Chinook salmon (Oncorhynchus tshawytscha) fry survival at Lookout Point Reservoir, western Oregon, 2017

A field study was conducted to estimate survival of fry-sized juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, western Oregon, during 2017. The field study consisted of releasing three groups of genetically marked fish in the reservoir and monthly fish sampling. Fish were released during April 18–19 (43,950 fish), May...

Kock, Tobias J.; Perry, Russell W.; Hansen, Gabriel S.; Haner, Philip V.; Pope, Adam C.; Plumb, John M.; Cogliati, Karen M.; Hansen, Amy C.
Kock, T.J., Perry, R.W., Hansen, G.S., Haner, P.V., Pope, A.C., Plumb, J.M., Cogliati, K.M., and Hansen, A.C., 2019, Evaluation of Chinook salmon (Oncorhynchus tshawytscha) fry survival at Lookout Point Reservoir, western Oregon, 2017: U.S. Geological Survey Open-File Report 2019-1011, 42 p., https://doi.org/10.3133/ofr20191011.

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Year Published: 2019

Assessing causes of mortality for endangered juvenile Lost River suckers (Deltistes luxatus) in mesocosms in Upper Klamath Lake, south-central Oregon, 2016

Executive SummaryThe recovery of endangered Lost River suckers (Deltistes luxatus) in Upper Klamath Lake, south-central Oregon, has been impeded because juveniles are not recruiting into adult spawning populations. Adult sucker populations spawn each spring but mortality of age-0 suckers during their first summer is excessively high, and...

Hereford, Danielle M.; Conway, Carla M.; Burdick, Summer M.; Elliott, Diane G.; Perry, Todd M.; Dolan-Caret, Amari; Harris, Alta C.
Hereford, D.M., Conway, C.M., Burdick, S.M., Elliott, D.G., Perry, T.M., Dolan-Caret, A., and Harris, A.C., 2019, Assessing causes of mortality for endangered juvenile Lost River suckers (Deltistes luxatus) in mesocosms in Upper Klamath Lake, south-central Oregon, 2016: U.S. Geological Survey Open -File Report 2019-1006, 80 p., https://doi.org/10.3133/ofr20191006.