Western Fisheries Research Center

Publications

Filter Total Items: 2,205
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Year Published: 2019

Effects of microcystin-LR on juvenile Lost River suckers (Deltistes luxatus) during feeding trials, Upper Klamath Lake, Oregon, 2014−16

Executive SummaryHistorically, populations of Lost River suckers (Deltistes luxatus) of the Upper Klamath Basin were so numerous that they were commercially harvested; however, declining numbers throughout the 20th century led to the listing of the species under the United States Endangered Species Act in 1988. Habitat destruction, poor water...

Martin, Barbara A.; Echols, Kathy R.; Elliott, Diane G.; Feltz, Kevin; Conway, Carla M.; Burdick, Summer M.
Martin, B.A., Echols, K.R., Elliott, D.G., Feltz, K., Conway, C.M., and Burdick, S.M., 2019, Effects of microcystin-LR on juvenile Lost River suckers (Deltistes luxatus) during feeding trials, Upper Klamath Lake, Oregon, 2014−16: U.S. Geological Survey Open−File Report 2019–1079, 22 p., https://doi.org/10.3133/ofr20191079.

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Year Published: 2019

Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18

Executive SummaryThe Pahranagat roundtail chub (Gila robusta jordani; hereinafter “chub”) was federally listed as endangered in 1970 (U.S. Fish and Wildlife Service, 1970). In the decades following the listing, the chub has declined to extremely low numbers (Tuttle and others, 1990; Guadalupe, 2014). Loss of available habitat appears to be one of...

Martin, Barbara A.; Hayes, Brian S.; Harris, Alta C.
Martin, B.A., Hayes, B.S., and Harris, A.C., 2019, Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18: U.S. Geological Survey Open-File Report 2019–1075, 23 p., https://doi.org/10.3133/ofr20191075.

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Year Published: 2019

Evaluation of environmental DNA surveys for identifying occupancy and spatial distribution of Pacific Lamprey (Entosphenus tridentatus) and Lampetra spp. in a Washington coast watershed

Surveys of environmental DNA (eDNA) have become an important and multifaceted tool for monitoring and identifying distributions and occupancy of aquatic species. This tool is attractive because it is powerful, easy to apply, and provides an alternative to traditional field survey methods. However, validating eDNA survey methods against traditional...

Ostberg, Carl; Chase, Dorothy Murphy; Hoy, Marshal; Duda, Jeff; Hayes, Michael; Jolley, Jeffrey; Silver, Gregory S; Cook-Tabor, Carrie

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Year Published: 2019

Distribution of adult Chinook salmon (Oncorhynchus tshawytscha) in relation to water temperatures, Lake Scanewa, Cowlitz River, Washington, 2012

A trap-and-haul program is operated to move anadromous Pacific salmon (Oncorhynchus spp.) around dams and reservoirs in the Cowlitz River basin, Washington. The primary release site for adult fish is in Lake Scanewa, a small reservoir created by Cowlitz Falls Dam, the uppermost dam in the basin. Releases in the reservoir are terminated when...

Kock, Tobias J.; Ekstrom, Brian K.; Liedtke, Theresa L.
Kock, T.J., Ekstrom, B.K., and Liedtke, T.L., 2018, Distribution of adult Chinook salmon (Oncorhynchus tshawytscha) in relation to water temperatures, Lake Scanewa, Cowlitz River, Washington, 2012: U.S. Geological Survey Open-File Report 2019-1055, 14 p., https://doi.org/10.3133/ofr20191055.

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Year Published: 2019

Salmon, forage fish, and kelp

Kelp beds are prominent features of northeast Pacific coastlines. They are seasonal in nature, as are the communities that use them. Here, juvenile and adult Chinook salmon (Oncorhynchus tshawytscha) – key components of northeast Pacific marine food webs that link plankton and forage fishes to endangered killer whales – have just arrived at the...

Shaffer, Anne; Parks, Dave; Schoen, Erik R.; Beauchamp, David

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Year Published: 2019

Movements of juvenile Pacific Lamprey (Entosphenus tridentatus) in the Yakima and Columbia Rivers, Washington, 2018—A pilot study using acoustic telemetry

Telemetry has been an invaluable tool to improve our understanding of adult Pacific Lamprey (Entosphenus tridentatus) movements and to guide management approaches to protect and restore this species of concern. Juvenile and larval lamprey, however, are much smaller than adults, and have not been monitored with telemetry because available...

Liedtke, Theresa L.; Lampman, Ralph T. ; Deng, Z. Daniel; Beals, Tyler E.; Porter, Michael S.; Hansen, Amy C.; Kock, Tobias J.; Tomka, Ryan G.; Monk, Patrick
Liedtke , T.L., Lampman, R.T., Deng, D.Z., Beals, T.E., Porter, M.S., Hansen, A.C., Kock, T.J., Tomka, R.G., and Monk, P., 2019, Movements of juvenile Pacific Lamprey (Entosphenus tridentatus) in the Yakima and Columbia Rivers, Washington, 2018—A pilot study using acoustic telemetry: U.S. Geological Survey Open-File Report 2019-1058, 29 p., https://doi.org/10.3133/ofr20191058.

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Year Published: 2019

A field evaluation of the growth and survival of age-0 Oncorhynchus mykiss tagged with 8-mm passive integrated transponder (PIT) tags

BackgroundIn fish tagging studies, tag size limits the size of fish that can be tagged, the fraction of a population that can be represented, and ultimately inferences that can be made about the study population, particularly when juvenile fish are the subject of interest. Introduction of an 8-mm passive integrated transponder (PIT) reduced the...

Tiffan, Kenneth; Jezorek, Ian; Perry, Russell

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Year Published: 2019

Adult sockeye salmon (Oncorhynchus nerka) behavior and movement from Roza Dam to Cle Elum Dam, Washington, 2018

An evaluation was conducted to describe adult sockeye salmon (Oncorhynchus nerka) upstream movement patterns from Roza Dam to Cle Elum Dam in the Yakima Basin, Washington. Sockeye salmon adults that arrive at Roza Dam are currently trapped and transported upstream of Cle Elum Dam because upstream fish-passage facilities are not currently in place...

Kock, Tobias J.; Evans, Scott D.; Ekstrom, Brian K.; Hansen, Amy C.
Kock, T.J., Evans, S.D., Ekstrom, B.K., and Hansen, A.C., 2019, Adult sockeye salmon (Oncorhynchus nerka) behavior and movement from Roza Dam to Cle Elum Dam, Washington, 2018: Open-File Report 2019-1053, 8 p., https://doi.org/10.3133/ofr20191053.

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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

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.