Amy C Hansen
Amy is a Fish Biologist in the Western Fisheries Research Center working out of the Columbia River Research Laboratory in Cook, Washington. Her research focuses on Pacific salmon, green sturgeon, dam passage and survival, and restoration monitoring in Washington, Oregon, and California.
Amy’s research focus is describing fish migration and survival of juvenile and adult Pacific salmon and green sturgeon in rivers and reservoirs throughout Washington, Oregon, and California. A combination of telemetry techniques are used at a variety of high-head and diversion dams or modified river channels to describe and understand migratory fish movements in relation to flows, seasonal and diel timing, and passage structures. Recently, Amy monitored a restoration site intended to provide new rearing habitat for juvenile Pacific salmon and other community fishes. Future monitoring will provide insights into how juvenile fish are utilizing this restored site over time, within a migration season and between years.
Professional Experience
2000 to Present - Fish Biologist, U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, Cook, WA
2000 - Biologist, IAP/Johnson Controls, at Western Fisheries Research Center, Columbia River Research Laboratory, Cook, WA
Education and Certifications
1997: Advanced Open Water SCUBA certification
1995: Open Water SCUBA certification
B.S. 1995. Biology. Oregon State University, Corvallis, OR
Affiliations and Memberships*
American Fisheries Society
North American Sturgeon and Paddlefish Society
Honors and Awards
2002, 2002, 2003, 2005, and 2006 - Star Performance Award
Science and Products
Filter Total Items: 36
Observational data on the effects of infection by the copepod Salmincola californiensis on the short- and long-term viability of juvenile Chinook salmon (Oncorhynchus tshawytscha) implanted with telemetry tags Observational data on the effects of infection by the copepod Salmincola californiensis on the short- and long-term viability of juvenile Chinook salmon (Oncorhynchus tshawytscha) implanted with telemetry tags
Background Fish movements are often studied using radio or acoustic tags assuming the handling and tagging procedures have little effect on the behavior of the animal. Indeed, many studies provide guidelines for acceptable methods. However, these studies generally assume the fish are otherwise healthy but this may not always be the case. One example is the infection of juvenile salmon in...
Authors
John W. Beeman, Amy C. Hansen, Jamie M. Sprando
In-reservoir behavior, dam passage, and downstream migration of juvenile Chinook salmon and juvenile steelhead from Detroit Reservoir and Dam to Portland, Oregon, February 2013-February 2014 In-reservoir behavior, dam passage, and downstream migration of juvenile Chinook salmon and juvenile steelhead from Detroit Reservoir and Dam to Portland, Oregon, February 2013-February 2014
In the second year of 2 years of study, the movements of juvenile spring Chinook salmon (Oncorhynchus tshawytscha) and juvenile summer steelhead (Oncorhynchus mykiss) through Detroit Reservoir, passing Detroit Dam, and migrating downstream to Portland, Oregon, were studied during a 1-year-long period beginning in February 2013. The primary purpose of the study was to provide empirical...
Authors
John W. Beeman, Noah S. Adams
Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2012 - February 2013 Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2012 - February 2013
The movements and dam passage of individual juvenile Chinook salmon (Oncorhynchus tshawytscha) were studied at Cougar Reservoir and Dam, near Springfield, Oregon, during 2012 and 2013. Cougar Dam is a high-head flood-control reservoir with a temperature control tower as its outlet enabling selective withdrawals of water at various depths to control the temperature of water passed...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Tyson Hatton, Eric E. Kofoot, Jamie M. Sprando, Collin Smith
Behavior and dam passage of juvenile Chinook salmon and juvenile steelhead at Detroit Reservoir and Dam, Oregon, March 2012-February 2013 Behavior and dam passage of juvenile Chinook salmon and juvenile steelhead at Detroit Reservoir and Dam, Oregon, March 2012-February 2013
The in-reservoir movements and dam passage of individual juvenile Chinook salmon (Oncorhynchus tshawytscha) and juvenile steelhead (Oncorhynchus mykiss) were studied at Detroit Reservoir and Dam, near Detroit, Oregon, during 2012 and 2013. The goal of the study was to provide data to inform decisions about future downstream passage alternatives and factors affecting downstream passage...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Tyson W. Hatton, Eric E. Kofoot, Jamie M. Sprando, Collin D. Smith
Passage and survival probabilities of juvenile Chinook salmon at Cougar Dam, Oregon, 2012 Passage and survival probabilities of juvenile Chinook salmon at Cougar Dam, Oregon, 2012
This report describes studies of juvenile-salmon dam passage and apparent survival at Cougar Dam, Oregon, during two operating conditions in 2012. Cougar Dam is a 158-meter tall rock-fill dam used primarily for flood control, and passes water through a temperature control tower to either a powerhouse penstock or to a regulating outlet (RO). The temperature control tower has moveable weir...
Authors
John W. Beeman, Scott D. Evans, Philip V. Haner, Hal C. Hansel, Amy C. Hansen, Collin D. Smith, Jamie M. Sprando
Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2011 - February 2012 Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2011 - February 2012
The movements and dam passage of juvenile Chinook salmon implanted with acoustic transmitters and passive integrated transponder tags were studied at Cougar Reservoir and Dam, near Springfield, Oregon. The purpose of the study was to provide information to aid with decisions about potential alternatives for improving downstream passage conditions for juvenile salmonids in this flood...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Philip V. Haner, Jamie M. Sprando, Collin D. Smith, Scott D. Evans, Tyson W. Hatton
Passage probabilities of juvenile Chinook salmon through the powerhouse and regulating outlet at Cougar Dam, Oregon, 2011 Passage probabilities of juvenile Chinook salmon through the powerhouse and regulating outlet at Cougar Dam, Oregon, 2011
Cougar Dam near Springfield, Oregon, is one of several federally owned and operated flood-control projects within the Willamette Valley of western Oregon that were determined by the National Oceanic and Atmospheric Administration’s National Marine Fisheries Service in 2008 to impact the long-term viability of several salmonid stocks. In response to this ruling, the U.S. Army Corps of...
Authors
John W. Beeman, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Hal C. Hansel, Collin D. Smith
Interim results from a study of the behavior of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March--August 2011 Interim results from a study of the behavior of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March--August 2011
The movements and dam passage of yearling juvenile Chinook salmon implanted with acoustic transmitters and passive integrated transponder tags were studied at Cougar Reservoir and Dam, near Springfield, Oregon. A total of 411 hatchery fish and 26 wild fish were tagged and released between March 7 and May 21, 2011. A series of 16 autonomous hydrophones placed throughout the reservoir were...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Philip V. Haner, Jamie M. Sprando, Collin D. Smith, Scott D. Evans
Approach, passage, and survival of juvenile salmonids at Little Goose Dam, Washington: Post-construction evaluation of a temporary spillway weir, 2009 Approach, passage, and survival of juvenile salmonids at Little Goose Dam, Washington: Post-construction evaluation of a temporary spillway weir, 2009
This report describes a study of dam passage and survival of radio-tagged juvenile salmonids after installation of a temporary spillway weir (TSW) at Little Goose Dam, Washington, in 2009. The purpose of the study was to document fish passage and survival when the dam was operated with the TSW in place. Spillway weirs are one of several methods used to improve downstream passage of...
Authors
J.W. Beeman, A.C. Braatz, H.C. Hansel, S.D. Fielding, P.V. Haner, G.S. Hansen, D.J. Shurtleff, J.M. Sprando, D.W. Rondorf
Survival and migration behavior of juvenile salmonids at Lower Granite Dam, 2006 Survival and migration behavior of juvenile salmonids at Lower Granite Dam, 2006
We described behavior and estimated passage and survival parameters of juvenile salmonids during spring and summer migration periods at Lower Granite Dam in 2006. During the spring, the study was designed to examine the effects of the Behavioral Guidance Structure (BGS) by using a randomized-block BGS Stored / BGS Deployed treatment design. The summer study was designed to compare...
Authors
John W. Beeman, Scott D. Fielding, Amy C. Braatz, Tamara S. Wilkerson, Adam C. Pope, Christopher E. Walker, Jill M. Hardiman, Russell W. Perry, Timothy D. Counihan
Survival and migration behavior of juvenile salmonids at McNary Dam, 2005: Final report of research Survival and migration behavior of juvenile salmonids at McNary Dam, 2005: Final report of research
During 2005, we used radio-telemetry at McNary Dam to estimate passage and survival parameters of juvenile salmonids. During the spring migration period, two treatments were implemented: 1) 12-h spill operations with spill occurring between 1800 hours and 0600 hours, and 2) 24-h spill with spill occurring 24 hours per day. Treatments were not implemented during the summer migration...
Authors
Russell W. Perry, Amy C. Braatz, Marc S. Novick, Joel N. Lucchesi, Gary L. Rutz, Ryan C. Koch, Jacquelyn L. Schei, Noah S. Adams, Dennis W. Rondorf
Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006 Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006
No abstract available.
Authors
J.W. Beeman, A.C. Braatz, S.D. Fielding, J.M. Hardiman, C. E. Walker, A.C. Pope, T.S. Wilkerson, D.J. Shurtleff, R.W. Perry, T.D. Counihan
Science and Products
Filter Total Items: 36
Observational data on the effects of infection by the copepod Salmincola californiensis on the short- and long-term viability of juvenile Chinook salmon (Oncorhynchus tshawytscha) implanted with telemetry tags Observational data on the effects of infection by the copepod Salmincola californiensis on the short- and long-term viability of juvenile Chinook salmon (Oncorhynchus tshawytscha) implanted with telemetry tags
Background Fish movements are often studied using radio or acoustic tags assuming the handling and tagging procedures have little effect on the behavior of the animal. Indeed, many studies provide guidelines for acceptable methods. However, these studies generally assume the fish are otherwise healthy but this may not always be the case. One example is the infection of juvenile salmon in...
Authors
John W. Beeman, Amy C. Hansen, Jamie M. Sprando
In-reservoir behavior, dam passage, and downstream migration of juvenile Chinook salmon and juvenile steelhead from Detroit Reservoir and Dam to Portland, Oregon, February 2013-February 2014 In-reservoir behavior, dam passage, and downstream migration of juvenile Chinook salmon and juvenile steelhead from Detroit Reservoir and Dam to Portland, Oregon, February 2013-February 2014
In the second year of 2 years of study, the movements of juvenile spring Chinook salmon (Oncorhynchus tshawytscha) and juvenile summer steelhead (Oncorhynchus mykiss) through Detroit Reservoir, passing Detroit Dam, and migrating downstream to Portland, Oregon, were studied during a 1-year-long period beginning in February 2013. The primary purpose of the study was to provide empirical...
Authors
John W. Beeman, Noah S. Adams
Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2012 - February 2013 Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2012 - February 2013
The movements and dam passage of individual juvenile Chinook salmon (Oncorhynchus tshawytscha) were studied at Cougar Reservoir and Dam, near Springfield, Oregon, during 2012 and 2013. Cougar Dam is a high-head flood-control reservoir with a temperature control tower as its outlet enabling selective withdrawals of water at various depths to control the temperature of water passed...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Tyson Hatton, Eric E. Kofoot, Jamie M. Sprando, Collin Smith
Behavior and dam passage of juvenile Chinook salmon and juvenile steelhead at Detroit Reservoir and Dam, Oregon, March 2012-February 2013 Behavior and dam passage of juvenile Chinook salmon and juvenile steelhead at Detroit Reservoir and Dam, Oregon, March 2012-February 2013
The in-reservoir movements and dam passage of individual juvenile Chinook salmon (Oncorhynchus tshawytscha) and juvenile steelhead (Oncorhynchus mykiss) were studied at Detroit Reservoir and Dam, near Detroit, Oregon, during 2012 and 2013. The goal of the study was to provide data to inform decisions about future downstream passage alternatives and factors affecting downstream passage...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Tyson W. Hatton, Eric E. Kofoot, Jamie M. Sprando, Collin D. Smith
Passage and survival probabilities of juvenile Chinook salmon at Cougar Dam, Oregon, 2012 Passage and survival probabilities of juvenile Chinook salmon at Cougar Dam, Oregon, 2012
This report describes studies of juvenile-salmon dam passage and apparent survival at Cougar Dam, Oregon, during two operating conditions in 2012. Cougar Dam is a 158-meter tall rock-fill dam used primarily for flood control, and passes water through a temperature control tower to either a powerhouse penstock or to a regulating outlet (RO). The temperature control tower has moveable weir...
Authors
John W. Beeman, Scott D. Evans, Philip V. Haner, Hal C. Hansel, Amy C. Hansen, Collin D. Smith, Jamie M. Sprando
Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2011 - February 2012 Behavior and dam passage of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March 2011 - February 2012
The movements and dam passage of juvenile Chinook salmon implanted with acoustic transmitters and passive integrated transponder tags were studied at Cougar Reservoir and Dam, near Springfield, Oregon. The purpose of the study was to provide information to aid with decisions about potential alternatives for improving downstream passage conditions for juvenile salmonids in this flood...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Philip V. Haner, Jamie M. Sprando, Collin D. Smith, Scott D. Evans, Tyson W. Hatton
Passage probabilities of juvenile Chinook salmon through the powerhouse and regulating outlet at Cougar Dam, Oregon, 2011 Passage probabilities of juvenile Chinook salmon through the powerhouse and regulating outlet at Cougar Dam, Oregon, 2011
Cougar Dam near Springfield, Oregon, is one of several federally owned and operated flood-control projects within the Willamette Valley of western Oregon that were determined by the National Oceanic and Atmospheric Administration’s National Marine Fisheries Service in 2008 to impact the long-term viability of several salmonid stocks. In response to this ruling, the U.S. Army Corps of...
Authors
John W. Beeman, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Hal C. Hansel, Collin D. Smith
Interim results from a study of the behavior of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March--August 2011 Interim results from a study of the behavior of juvenile Chinook salmon at Cougar Reservoir and Dam, Oregon, March--August 2011
The movements and dam passage of yearling juvenile Chinook salmon implanted with acoustic transmitters and passive integrated transponder tags were studied at Cougar Reservoir and Dam, near Springfield, Oregon. A total of 411 hatchery fish and 26 wild fish were tagged and released between March 7 and May 21, 2011. A series of 16 autonomous hydrophones placed throughout the reservoir were...
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Philip V. Haner, Jamie M. Sprando, Collin D. Smith, Scott D. Evans
Approach, passage, and survival of juvenile salmonids at Little Goose Dam, Washington: Post-construction evaluation of a temporary spillway weir, 2009 Approach, passage, and survival of juvenile salmonids at Little Goose Dam, Washington: Post-construction evaluation of a temporary spillway weir, 2009
This report describes a study of dam passage and survival of radio-tagged juvenile salmonids after installation of a temporary spillway weir (TSW) at Little Goose Dam, Washington, in 2009. The purpose of the study was to document fish passage and survival when the dam was operated with the TSW in place. Spillway weirs are one of several methods used to improve downstream passage of...
Authors
J.W. Beeman, A.C. Braatz, H.C. Hansel, S.D. Fielding, P.V. Haner, G.S. Hansen, D.J. Shurtleff, J.M. Sprando, D.W. Rondorf
Survival and migration behavior of juvenile salmonids at Lower Granite Dam, 2006 Survival and migration behavior of juvenile salmonids at Lower Granite Dam, 2006
We described behavior and estimated passage and survival parameters of juvenile salmonids during spring and summer migration periods at Lower Granite Dam in 2006. During the spring, the study was designed to examine the effects of the Behavioral Guidance Structure (BGS) by using a randomized-block BGS Stored / BGS Deployed treatment design. The summer study was designed to compare...
Authors
John W. Beeman, Scott D. Fielding, Amy C. Braatz, Tamara S. Wilkerson, Adam C. Pope, Christopher E. Walker, Jill M. Hardiman, Russell W. Perry, Timothy D. Counihan
Survival and migration behavior of juvenile salmonids at McNary Dam, 2005: Final report of research Survival and migration behavior of juvenile salmonids at McNary Dam, 2005: Final report of research
During 2005, we used radio-telemetry at McNary Dam to estimate passage and survival parameters of juvenile salmonids. During the spring migration period, two treatments were implemented: 1) 12-h spill operations with spill occurring between 1800 hours and 0600 hours, and 2) 24-h spill with spill occurring 24 hours per day. Treatments were not implemented during the summer migration...
Authors
Russell W. Perry, Amy C. Braatz, Marc S. Novick, Joel N. Lucchesi, Gary L. Rutz, Ryan C. Koch, Jacquelyn L. Schei, Noah S. Adams, Dennis W. Rondorf
Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006 Passage, survival, and approach patterns of radio-tagged juvenile salmonids at Little Goose Dam, 2006
No abstract available.
Authors
J.W. Beeman, A.C. Braatz, S.D. Fielding, J.M. Hardiman, C. E. Walker, A.C. Pope, T.S. Wilkerson, D.J. Shurtleff, R.W. Perry, T.D. Counihan
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government