Russell Perry, Ph.D.
Russell is a Research Fish Biologist at the Columbia River Research Laboratory.
Science and Products
Detection of Four Runs of Telemetry Tagged Juvenile Chinook Salmon in the Sacramento River and Georgiana Slough and Associated Flow Data from 2009 to 2022 Detection of Four Runs of Telemetry Tagged Juvenile Chinook Salmon in the Sacramento River and Georgiana Slough and Associated Flow Data from 2009 to 2022
To assess the influence of run type and flow on the routing of juvenile Chinook salmon at the Georgiana Slough junction, we assembled a dataset of fish telemetry detections and flow data spanning a 12-year period. Fish detection data were obtained from the National Marine Fisheries Service’s Environmental Research Division’s Data Access Program (ERDDAP, 2023) and represent all four...
Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2024-25 Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2024-25
Federally-threatened ago-0 spring Chinook salmon (Oncorhynchus tshawytscha) were acoustic tagged and released near Lookout Point Reservoir to estimate passage and survival during the second year of an experimental reservoir drawdown operation that was designed to facilitate downstream passage through two reservoirs and dams. The experimental operation consisted of lowering the water...
Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha), steelhead (O. mykiss), and sockeye salmon (O. nerka) detections in the Yakima River, Washington, 2018-2024 (version 1.1, September 2025) Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha), steelhead (O. mykiss), and sockeye salmon (O. nerka) detections in the Yakima River, Washington, 2018-2024 (version 1.1, September 2025)
Juvenile Chinook salmon (age 0 and age 1), steelhead, and sockeye salmon were tagged with acoustic transmitters and released at sites along the Yakima River in and below Yakima, WA from 2018 to 2024. Detection sites varied across years but included arrays placed at diversion dams, canals, hydropower facilities, and other locations throughout the Yakima and Columbia rivers. Study design...
Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2023_24 Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2023_24
Federally-threatened ago-0 spring Chinook salmon (Oncorhynchus tshawytscha) were acoustic tagged and released near Lookout Point Reservoir to estimate passage and survival during an experimental reservoir drawdown operation that was designed to facilitate downstream passage through two reservoirs and dams. The experimental operation consisted of lowering the water surface elevation of...
Daily and annual abundances of natural- and hatchery-origin age-0 fall Chinook salmon (Oncorhynchus tshawytscha) passing Lower Granite Dam, Washington 1992 - 2021 Daily and annual abundances of natural- and hatchery-origin age-0 fall Chinook salmon (Oncorhynchus tshawytscha) passing Lower Granite Dam, Washington 1992 - 2021
The main contents of this data release are estimates of daily and annual abundances of federally-threatened natural-origin age-0 fall Chinook salmon (Oncorhynchus tshawytscha) passing Lower Granite Dam, Washington. Fish from this population are sampled as they pass Lower Granite Dam, but these sample data cannot be used directly to infer abundance because capture probability at Lower...
The North Delta Routing and Survival Management Tool (ver. 3.0, May 2026) The North Delta Routing and Survival Management Tool (ver. 3.0, May 2026)
Understanding how routing modifications influence survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) is complex because reach-specific survival and routing at key river junctions in the North Delta each have a different relationship with river flow. Therefore, to facilitate understanding of how routing modifications at key river junctions influence through-Delta survival, we...
Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022 Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022
This data set includes count, location, and ancillary habitat data for fishes sampled in adjacent reaches of Georgiana Slough, Sacramento River, and Steamboat Slough in the northern Sacramento-San Joaquin Delta. It also includes data on the stomach contents of selected individual black basses (Micropterus). Fishes were sampled by boat electrofishing from approximately January-May, 2020...
Tidal flow dynamics at Sutter and Steamboat Sloughs in the Sacramento-San Joaquin Delta, CA in 2014 Tidal flow dynamics at Sutter and Steamboat Sloughs in the Sacramento-San Joaquin Delta, CA in 2014
The video shows a short animation of river flow dynamics (flow velocity vectors) over multiple tidal cycles.
Filter Total Items: 146
Biological, environmental, and geomorphological factors influencing reach-specific survival of spring Chinook Salmon smolts upstream of the Columbia–Snake River hydrosystem Biological, environmental, and geomorphological factors influencing reach-specific survival of spring Chinook Salmon smolts upstream of the Columbia–Snake River hydrosystem
Objective Pacific salmon Oncorhynchus spp. are exhibiting catastrophic declines throughout much of the Pacific Northwest, and juvenile mortality contributions are disproportionately high. Many Pacific salmon smolt populations are exhibiting high natal stream mortality; however, detailed natal stream reach-specific survival knowledge is lacking. Our objectives were to estimate natal...
Authors
Scott D. Favrot, Russell W. Perry, Sean W. Kimbrel
Assessment of Chinook Salmon Smolt Survival at Offsite Release Locations in the Sacramento River Across Wet and Dry Years Assessment of Chinook Salmon Smolt Survival at Offsite Release Locations in the Sacramento River Across Wet and Dry Years
We used acoustic telemetry to estimate survival of tagged release groups, and quantify differences between alternative hatchery release strategies. To assess whether offsite release could increase survival of hatchery fish relative to those released at the hatchery, we compare survival during emigration of hatchery fall Chinook Salmon (FCS, Oncorhynchus tshawytscha) smolts released...
Authors
Michael J. Dodrill, Sarah Austing, Kevin Niemela, Russell W. Perry
Non-physical barrier design and environmental conditions alter routing and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Sacramento-San Joaquin River Delta Non-physical barrier design and environmental conditions alter routing and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Sacramento-San Joaquin River Delta
Pacific salmon face substantial challenges when migrating through anthropogenically modified river systems, such as the Sacramento-San Joaquin River Delta (the Delta). Non-physical behavioral barriers, such as the bioacoustic fish fence (BAFF), are one potential solution for guiding fish away from hazards without obstructing water flow. However, the effectiveness of these technologies...
Authors
Maggie Jo Raboin, Summer M. Burdick, Russell W. Perry
Response of juvenile Chinook Salmon to an experimental reservoir operation to facilitate downstream migration Response of juvenile Chinook Salmon to an experimental reservoir operation to facilitate downstream migration
Objectives High-head dams and storage reservoirs impact ecological processes, impeding recovery efforts of Pacific salmon Oncorhynchus spp. in the western United States. These projects can delay migration, increase risks of predation and disease, and induce mortality for juvenile Pacific salmon during downstream passage. To mitigate these negative effects, large-scale changes to dam...
Authors
Dalton J. Hance, Mikaeli Elizabeth Dirling, Claire E. Couch, Amy C. Hansen, Russell W. Perry, Tobias J. Kock
Development of a two-stage lifecycle model to inform the trap-and-haul program for Oncorhynchus kisutch (coho salmon) in the Lewis River, Washington Development of a two-stage lifecycle model to inform the trap-and-haul program for Oncorhynchus kisutch (coho salmon) in the Lewis River, Washington
Restoration of salmon populations in the upper Lewis River Basin, Washington, depends on a trap-and-haul program owing to the Lewis River Hydroelectric Project (hereinafter referred to as “Project”) operated by PacifiCorp and Cowlitz Public Utilities District (hereinafter referred to as “Utilities”), which has been a barrier to salmon passage since the 1930s. Thus, sustaining the...
Authors
John M. Plumb, Russell W. Perry
Differences among runs of Chinook Salmon in routing probability at the Georgiana Slough-Sacramento River junction Differences among runs of Chinook Salmon in routing probability at the Georgiana Slough-Sacramento River junction
The survival of juvenile Chinook Salmon (Oncorhynchus tshawytscha) depends on the specific migration route they take through the Sacramento–San Joaquin Delta. Factors such as flow magnitude, flow direction, and distribution of fish across the channel significantly affect the likelihood of their entering routes with lower survival probabilities. Management strategies to mitigate the entry...
Authors
Summer M. Burdick, Russell W. Perry, Maggie Jo Raboin, John Plumb
Who needs closure? Estimating abundance with a Markovian availability model for geographically open removal sampling Who needs closure? Estimating abundance with a Markovian availability model for geographically open removal sampling
Removal sampling is an important method for estimating abundance, but nearly all removal models assume closure during sampling. Yet, closure may be difficult to assume, evaluate, or enforce in many settings. To address situations where populations are geographically open between each removal sample, we incorporated a Markovian availability process into an N-mixture model framework. This...
Authors
Russell W. Perry, Adam C. Pope, A. Noble Hendrix, Joseph E. Kirsch, Bryan G. Matthias, Michael J. Dodrill
Calibration of the Stream Salmonid Simulator (S3) model to estimate annual survival, movement, and food consumption by juvenile Chinook salmon (Oncorhynchus tshawytscha) in the restoration reach of the Trinity River, California, 2006–18 Calibration of the Stream Salmonid Simulator (S3) model to estimate annual survival, movement, and food consumption by juvenile Chinook salmon (Oncorhynchus tshawytscha) in the restoration reach of the Trinity River, California, 2006–18
Authors
John M. Plumb, Russell W. Perry, Kyle De Juilio
Development of a two-stage life cycle model to inform the Trap and Haul Program for Coho salmon in the Lewis River, Washington Development of a two-stage life cycle model to inform the Trap and Haul Program for Coho salmon in the Lewis River, Washington
Restoration of salmon populations in the upper Lewis River Basin depends on a trap-and-haul program owing to the Lewis River Hydroelectric Project (Project) operated by PacifiCorp and Cowlitz PUD (Utilities), which has been a barrier to salmon passage since the 1930s. Thus, sustaining the Coho salmon (Oncorhynchus kisutch) population upstream of the Project currently depends on two...
Authors
John Plumb, Russell W. Perry
Seasonal movements and demographics of the endangered White River Spinedace to inform restoration and translocation Seasonal movements and demographics of the endangered White River Spinedace to inform restoration and translocation
Objective Translocation is a tool being explored to restart extirpated populations or facilitate new populations of endangered spring-dependent fish populations. Our objective was to provide information on habitat requirements for endangered White River Spinedace Lepidomeda albivallis during all seasons of the year and the population demographics that are necessary to plan conservation
Authors
Summer M. Burdick, James F. Harter, Mark Beckstrand, Rachael Katelyn Paul-Wilson, Brian S. Hayes, Russell W. Perry, Collin D. Smith
Survival, travel time, and use of migration routes by juvenile steelhead in a modified river estuary Survival, travel time, and use of migration routes by juvenile steelhead in a modified river estuary
Greater understanding of the survival, travel time, and spatial distribution of juvenile salmonids among migration routes between their natal streams and the ocean is critical to the recovery of these threatened species. In the Sacramento–San Joaquin River Delta (Delta), a highly modified estuary in central California, USA, there is a critical need to evaluate how water management (e.g...
Authors
Adam C. Pope, Russell Perry, Dalton J. Hance, Rebecca A. Buchanan
Outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in response to deep drawdown of the Lookout Point Project, Middle Fork Willamette River, Oregon Outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in response to deep drawdown of the Lookout Point Project, Middle Fork Willamette River, Oregon
An acoustic telemetry study was conducted during August 2023–February 2024 to evaluate outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Middle Fork Willamette River, Oregon, during an experimental operation that was designed to facilitate downstream passage through two reservoirs and two dams. The experimental operation consisted of lowering...
Authors
Dalton J. Hance, Tobias J. Kock, Jake R. Kelley, Amy C. Hansen, Russell W. Perry, Scott D Fielding
Non-USGS Publications**
Perry, R.W., J.R. Skalski, P.L. Brandes, P.T. Sandstrom, A.P. Klimley, A. Ammann, and B. MacFarlane. 2010. Estimating survival and migration route probabilities of juvenile Chinook salmon in the Sacramento-San Joaquin River Delta. N. Am. J. Fish. Manage. 30(1): 142-156. DOI: 10.1577/MO8-200.1.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Detection of Four Runs of Telemetry Tagged Juvenile Chinook Salmon in the Sacramento River and Georgiana Slough and Associated Flow Data from 2009 to 2022 Detection of Four Runs of Telemetry Tagged Juvenile Chinook Salmon in the Sacramento River and Georgiana Slough and Associated Flow Data from 2009 to 2022
To assess the influence of run type and flow on the routing of juvenile Chinook salmon at the Georgiana Slough junction, we assembled a dataset of fish telemetry detections and flow data spanning a 12-year period. Fish detection data were obtained from the National Marine Fisheries Service’s Environmental Research Division’s Data Access Program (ERDDAP, 2023) and represent all four...
Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2024-25 Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2024-25
Federally-threatened ago-0 spring Chinook salmon (Oncorhynchus tshawytscha) were acoustic tagged and released near Lookout Point Reservoir to estimate passage and survival during the second year of an experimental reservoir drawdown operation that was designed to facilitate downstream passage through two reservoirs and dams. The experimental operation consisted of lowering the water...
Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha), steelhead (O. mykiss), and sockeye salmon (O. nerka) detections in the Yakima River, Washington, 2018-2024 (version 1.1, September 2025) Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha), steelhead (O. mykiss), and sockeye salmon (O. nerka) detections in the Yakima River, Washington, 2018-2024 (version 1.1, September 2025)
Juvenile Chinook salmon (age 0 and age 1), steelhead, and sockeye salmon were tagged with acoustic transmitters and released at sites along the Yakima River in and below Yakima, WA from 2018 to 2024. Detection sites varied across years but included arrays placed at diversion dams, canals, hydropower facilities, and other locations throughout the Yakima and Columbia rivers. Study design...
Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2023_24 Acoustic-tagged juvenile Chinook salmon (Oncorhynchus tshawytscha) detections in Lookout Point Reservoir and downstream in the Middle Fork Willamette River, Oregon, 2023_24
Federally-threatened ago-0 spring Chinook salmon (Oncorhynchus tshawytscha) were acoustic tagged and released near Lookout Point Reservoir to estimate passage and survival during an experimental reservoir drawdown operation that was designed to facilitate downstream passage through two reservoirs and dams. The experimental operation consisted of lowering the water surface elevation of...
Daily and annual abundances of natural- and hatchery-origin age-0 fall Chinook salmon (Oncorhynchus tshawytscha) passing Lower Granite Dam, Washington 1992 - 2021 Daily and annual abundances of natural- and hatchery-origin age-0 fall Chinook salmon (Oncorhynchus tshawytscha) passing Lower Granite Dam, Washington 1992 - 2021
The main contents of this data release are estimates of daily and annual abundances of federally-threatened natural-origin age-0 fall Chinook salmon (Oncorhynchus tshawytscha) passing Lower Granite Dam, Washington. Fish from this population are sampled as they pass Lower Granite Dam, but these sample data cannot be used directly to infer abundance because capture probability at Lower...
The North Delta Routing and Survival Management Tool (ver. 3.0, May 2026) The North Delta Routing and Survival Management Tool (ver. 3.0, May 2026)
Understanding how routing modifications influence survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) is complex because reach-specific survival and routing at key river junctions in the North Delta each have a different relationship with river flow. Therefore, to facilitate understanding of how routing modifications at key river junctions influence through-Delta survival, we...
Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022 Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022
This data set includes count, location, and ancillary habitat data for fishes sampled in adjacent reaches of Georgiana Slough, Sacramento River, and Steamboat Slough in the northern Sacramento-San Joaquin Delta. It also includes data on the stomach contents of selected individual black basses (Micropterus). Fishes were sampled by boat electrofishing from approximately January-May, 2020...
Tidal flow dynamics at Sutter and Steamboat Sloughs in the Sacramento-San Joaquin Delta, CA in 2014 Tidal flow dynamics at Sutter and Steamboat Sloughs in the Sacramento-San Joaquin Delta, CA in 2014
The video shows a short animation of river flow dynamics (flow velocity vectors) over multiple tidal cycles.
Filter Total Items: 146
Biological, environmental, and geomorphological factors influencing reach-specific survival of spring Chinook Salmon smolts upstream of the Columbia–Snake River hydrosystem Biological, environmental, and geomorphological factors influencing reach-specific survival of spring Chinook Salmon smolts upstream of the Columbia–Snake River hydrosystem
Objective Pacific salmon Oncorhynchus spp. are exhibiting catastrophic declines throughout much of the Pacific Northwest, and juvenile mortality contributions are disproportionately high. Many Pacific salmon smolt populations are exhibiting high natal stream mortality; however, detailed natal stream reach-specific survival knowledge is lacking. Our objectives were to estimate natal...
Authors
Scott D. Favrot, Russell W. Perry, Sean W. Kimbrel
Assessment of Chinook Salmon Smolt Survival at Offsite Release Locations in the Sacramento River Across Wet and Dry Years Assessment of Chinook Salmon Smolt Survival at Offsite Release Locations in the Sacramento River Across Wet and Dry Years
We used acoustic telemetry to estimate survival of tagged release groups, and quantify differences between alternative hatchery release strategies. To assess whether offsite release could increase survival of hatchery fish relative to those released at the hatchery, we compare survival during emigration of hatchery fall Chinook Salmon (FCS, Oncorhynchus tshawytscha) smolts released...
Authors
Michael J. Dodrill, Sarah Austing, Kevin Niemela, Russell W. Perry
Non-physical barrier design and environmental conditions alter routing and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Sacramento-San Joaquin River Delta Non-physical barrier design and environmental conditions alter routing and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Sacramento-San Joaquin River Delta
Pacific salmon face substantial challenges when migrating through anthropogenically modified river systems, such as the Sacramento-San Joaquin River Delta (the Delta). Non-physical behavioral barriers, such as the bioacoustic fish fence (BAFF), are one potential solution for guiding fish away from hazards without obstructing water flow. However, the effectiveness of these technologies...
Authors
Maggie Jo Raboin, Summer M. Burdick, Russell W. Perry
Response of juvenile Chinook Salmon to an experimental reservoir operation to facilitate downstream migration Response of juvenile Chinook Salmon to an experimental reservoir operation to facilitate downstream migration
Objectives High-head dams and storage reservoirs impact ecological processes, impeding recovery efforts of Pacific salmon Oncorhynchus spp. in the western United States. These projects can delay migration, increase risks of predation and disease, and induce mortality for juvenile Pacific salmon during downstream passage. To mitigate these negative effects, large-scale changes to dam...
Authors
Dalton J. Hance, Mikaeli Elizabeth Dirling, Claire E. Couch, Amy C. Hansen, Russell W. Perry, Tobias J. Kock
Development of a two-stage lifecycle model to inform the trap-and-haul program for Oncorhynchus kisutch (coho salmon) in the Lewis River, Washington Development of a two-stage lifecycle model to inform the trap-and-haul program for Oncorhynchus kisutch (coho salmon) in the Lewis River, Washington
Restoration of salmon populations in the upper Lewis River Basin, Washington, depends on a trap-and-haul program owing to the Lewis River Hydroelectric Project (hereinafter referred to as “Project”) operated by PacifiCorp and Cowlitz Public Utilities District (hereinafter referred to as “Utilities”), which has been a barrier to salmon passage since the 1930s. Thus, sustaining the...
Authors
John M. Plumb, Russell W. Perry
Differences among runs of Chinook Salmon in routing probability at the Georgiana Slough-Sacramento River junction Differences among runs of Chinook Salmon in routing probability at the Georgiana Slough-Sacramento River junction
The survival of juvenile Chinook Salmon (Oncorhynchus tshawytscha) depends on the specific migration route they take through the Sacramento–San Joaquin Delta. Factors such as flow magnitude, flow direction, and distribution of fish across the channel significantly affect the likelihood of their entering routes with lower survival probabilities. Management strategies to mitigate the entry...
Authors
Summer M. Burdick, Russell W. Perry, Maggie Jo Raboin, John Plumb
Who needs closure? Estimating abundance with a Markovian availability model for geographically open removal sampling Who needs closure? Estimating abundance with a Markovian availability model for geographically open removal sampling
Removal sampling is an important method for estimating abundance, but nearly all removal models assume closure during sampling. Yet, closure may be difficult to assume, evaluate, or enforce in many settings. To address situations where populations are geographically open between each removal sample, we incorporated a Markovian availability process into an N-mixture model framework. This...
Authors
Russell W. Perry, Adam C. Pope, A. Noble Hendrix, Joseph E. Kirsch, Bryan G. Matthias, Michael J. Dodrill
Calibration of the Stream Salmonid Simulator (S3) model to estimate annual survival, movement, and food consumption by juvenile Chinook salmon (Oncorhynchus tshawytscha) in the restoration reach of the Trinity River, California, 2006–18 Calibration of the Stream Salmonid Simulator (S3) model to estimate annual survival, movement, and food consumption by juvenile Chinook salmon (Oncorhynchus tshawytscha) in the restoration reach of the Trinity River, California, 2006–18
Authors
John M. Plumb, Russell W. Perry, Kyle De Juilio
Development of a two-stage life cycle model to inform the Trap and Haul Program for Coho salmon in the Lewis River, Washington Development of a two-stage life cycle model to inform the Trap and Haul Program for Coho salmon in the Lewis River, Washington
Restoration of salmon populations in the upper Lewis River Basin depends on a trap-and-haul program owing to the Lewis River Hydroelectric Project (Project) operated by PacifiCorp and Cowlitz PUD (Utilities), which has been a barrier to salmon passage since the 1930s. Thus, sustaining the Coho salmon (Oncorhynchus kisutch) population upstream of the Project currently depends on two...
Authors
John Plumb, Russell W. Perry
Seasonal movements and demographics of the endangered White River Spinedace to inform restoration and translocation Seasonal movements and demographics of the endangered White River Spinedace to inform restoration and translocation
Objective Translocation is a tool being explored to restart extirpated populations or facilitate new populations of endangered spring-dependent fish populations. Our objective was to provide information on habitat requirements for endangered White River Spinedace Lepidomeda albivallis during all seasons of the year and the population demographics that are necessary to plan conservation
Authors
Summer M. Burdick, James F. Harter, Mark Beckstrand, Rachael Katelyn Paul-Wilson, Brian S. Hayes, Russell W. Perry, Collin D. Smith
Survival, travel time, and use of migration routes by juvenile steelhead in a modified river estuary Survival, travel time, and use of migration routes by juvenile steelhead in a modified river estuary
Greater understanding of the survival, travel time, and spatial distribution of juvenile salmonids among migration routes between their natal streams and the ocean is critical to the recovery of these threatened species. In the Sacramento–San Joaquin River Delta (Delta), a highly modified estuary in central California, USA, there is a critical need to evaluate how water management (e.g...
Authors
Adam C. Pope, Russell Perry, Dalton J. Hance, Rebecca A. Buchanan
Outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in response to deep drawdown of the Lookout Point Project, Middle Fork Willamette River, Oregon Outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in response to deep drawdown of the Lookout Point Project, Middle Fork Willamette River, Oregon
An acoustic telemetry study was conducted during August 2023–February 2024 to evaluate outmigration behavior and survival of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Middle Fork Willamette River, Oregon, during an experimental operation that was designed to facilitate downstream passage through two reservoirs and two dams. The experimental operation consisted of lowering...
Authors
Dalton J. Hance, Tobias J. Kock, Jake R. Kelley, Amy C. Hansen, Russell W. Perry, Scott D Fielding
Non-USGS Publications**
Perry, R.W., J.R. Skalski, P.L. Brandes, P.T. Sandstrom, A.P. Klimley, A. Ammann, and B. MacFarlane. 2010. Estimating survival and migration route probabilities of juvenile Chinook salmon in the Sacramento-San Joaquin River Delta. N. Am. J. Fish. Manage. 30(1): 142-156. DOI: 10.1577/MO8-200.1.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.