Theresa "Marty" Liedtke (Former Employee)
Science and Products
Filter Total Items: 74
Behavior and passage of juvenile salmonids during the evaluation of a behavioral guidance structure at Cowlitz Falls Dam, Washington, 2011 Behavior and passage of juvenile salmonids during the evaluation of a behavioral guidance structure at Cowlitz Falls Dam, Washington, 2011
Executive Summary A radiotelemetry evaluation was conducted during April–October 2011 to describe movement patterns, forebay behavior, and passage of juvenile steelhead, coho salmon, and Chinook salmon at Cowlitz Falls Dam, Washington. The primary focus of the study was to describe fish behavior near a behavioral guidance structure (BGS) and floating surface collector (FSC) deployed...
Authors
Tobias J. Kock, Theresa L. Liedtke, Brian K. Ekstrom, Ryan G. Tomka, Dennis W. Rondorf
Hydrography of and biogeochemical inputs to Liberty Bay, a small urban embayment in Puget Sound, Washington Hydrography of and biogeochemical inputs to Liberty Bay, a small urban embayment in Puget Sound, Washington
This multi-chapter report describes scientific and logistic understanding gained from a 2 year proof-of-concept study in Liberty Bay, a small urban embayment in central Puget Sound, Washington. The introductory chapter describes the regional and local setting, the high-level study goals, the site-specific urban stressors, and the interdisciplinary study approach. Subsequent data chapters...
Authors
Renee K. Takesue
Evaluation of angler effort and harvest of rainbow trout (Oncorhynchus mykiss), Lake Scanewa, Washington, 2010 Evaluation of angler effort and harvest of rainbow trout (Oncorhynchus mykiss), Lake Scanewa, Washington, 2010
A creel evaluation was conducted in Lake Scanewa, a reservoir on the Cowlitz River, to monitor catch rates of rainbow trout (Oncorhynchus mykiss) and determine if the trout fishery was having negative impacts on juvenile anadromous salmon (Oncorhynchus spp.) in the system. The trout fishery, which is supported by releases of 20,000 fish (2 fish per pound) per year from June to August...
Authors
Theresa L. Liedtke, Tobias J. Kock, Brian K. Ekstrom, Ryan G. Tomka, Dennis W. Rondorf
Behavior and movement of formerly landlocked juvenile coho salmon after release into the free-flowing Cowlitz River, Washington Behavior and movement of formerly landlocked juvenile coho salmon after release into the free-flowing Cowlitz River, Washington
Formerly landlocked Coho Salmon (Oncorhynchus kisutch) juveniles (age 2) were monitored following release into the free-flowing Cowlitz River to determine if they remained in the river or resumed seaward migration. Juvenile Coho Salmon were tagged with a radio transmitter (30 fish) or Floy tag (1050 fish) and their behavior was monitored in the lower Cowlitz River. We found that 97% of...
Authors
Tobias J. Kock, Julie A. Henning, Theresa L. Liedtke, Ida M. Royer, Brian K. Ekstrom, Dennis W. Rondorf
Juvenile salmonid collection efforts in the Upper Cowlitz River Basin Juvenile salmonid collection efforts in the Upper Cowlitz River Basin
n/a
Authors
T.L. Liedtke, T.J. Kock, B.K. Ekstrom, I.M. Royer, D.W. Rondorf
Juvenile Salmonid survival, passage, and egress at McNary Dam during tests of temporary spillway weirs, 2009 Juvenile Salmonid survival, passage, and egress at McNary Dam during tests of temporary spillway weirs, 2009
We evaluated behavior, passage, and survival of juvenile salmonids at McNary Dam in relation to the temporary spillway weirs (TSWs) using acoustic telemetry during 2009. The TSWs were located in spill bays 4 and 20 during spring and in spill bays 19 and 20 during summer. Our objectives were to assess the performance of the TSWs as a fish passage alternative. We also examined how tailrace
Authors
N.S. Adams, T.L. Liedtke
Non-USGS Publications**
Allen, B., T.L. Liedtke, A. Daniel, J. Begala, M. Salway, and J. Beeman. 2001. Monitoring tailrace egress in the stilling basin, the ice-trash sluiceway, and the powerhouse of The Dalles Dam, 2000. U.S. Army Corps of Engineers, Portland, OR. Contract No. W66QKZ00391996
Duran, I.N., T.L. Liedtke, and J.H. Petersen. 2002. Predator-prey interactions in The Dalles Dam tailrace. U.S. Army Corps of Engineers, Portland, OR.
Smith, C.D., T.L. Liedtke, B.J. Hausmann, J.L. Schei, J.R. Lyng, L.P. Gee, and J.W. Beeman. 2004. Tailrace Egress of yearling and subyearling Chinook salmon and juvenile steelhead following juvenile bypass system passage at John Day Dam, 2002. U.S. Army Corps of Engineers, Portland District, Portland, OR.
**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
Filter Total Items: 74
Behavior and passage of juvenile salmonids during the evaluation of a behavioral guidance structure at Cowlitz Falls Dam, Washington, 2011 Behavior and passage of juvenile salmonids during the evaluation of a behavioral guidance structure at Cowlitz Falls Dam, Washington, 2011
Executive Summary A radiotelemetry evaluation was conducted during April–October 2011 to describe movement patterns, forebay behavior, and passage of juvenile steelhead, coho salmon, and Chinook salmon at Cowlitz Falls Dam, Washington. The primary focus of the study was to describe fish behavior near a behavioral guidance structure (BGS) and floating surface collector (FSC) deployed...
Authors
Tobias J. Kock, Theresa L. Liedtke, Brian K. Ekstrom, Ryan G. Tomka, Dennis W. Rondorf
Hydrography of and biogeochemical inputs to Liberty Bay, a small urban embayment in Puget Sound, Washington Hydrography of and biogeochemical inputs to Liberty Bay, a small urban embayment in Puget Sound, Washington
This multi-chapter report describes scientific and logistic understanding gained from a 2 year proof-of-concept study in Liberty Bay, a small urban embayment in central Puget Sound, Washington. The introductory chapter describes the regional and local setting, the high-level study goals, the site-specific urban stressors, and the interdisciplinary study approach. Subsequent data chapters...
Authors
Renee K. Takesue
Evaluation of angler effort and harvest of rainbow trout (Oncorhynchus mykiss), Lake Scanewa, Washington, 2010 Evaluation of angler effort and harvest of rainbow trout (Oncorhynchus mykiss), Lake Scanewa, Washington, 2010
A creel evaluation was conducted in Lake Scanewa, a reservoir on the Cowlitz River, to monitor catch rates of rainbow trout (Oncorhynchus mykiss) and determine if the trout fishery was having negative impacts on juvenile anadromous salmon (Oncorhynchus spp.) in the system. The trout fishery, which is supported by releases of 20,000 fish (2 fish per pound) per year from June to August...
Authors
Theresa L. Liedtke, Tobias J. Kock, Brian K. Ekstrom, Ryan G. Tomka, Dennis W. Rondorf
Behavior and movement of formerly landlocked juvenile coho salmon after release into the free-flowing Cowlitz River, Washington Behavior and movement of formerly landlocked juvenile coho salmon after release into the free-flowing Cowlitz River, Washington
Formerly landlocked Coho Salmon (Oncorhynchus kisutch) juveniles (age 2) were monitored following release into the free-flowing Cowlitz River to determine if they remained in the river or resumed seaward migration. Juvenile Coho Salmon were tagged with a radio transmitter (30 fish) or Floy tag (1050 fish) and their behavior was monitored in the lower Cowlitz River. We found that 97% of...
Authors
Tobias J. Kock, Julie A. Henning, Theresa L. Liedtke, Ida M. Royer, Brian K. Ekstrom, Dennis W. Rondorf
Juvenile salmonid collection efforts in the Upper Cowlitz River Basin Juvenile salmonid collection efforts in the Upper Cowlitz River Basin
n/a
Authors
T.L. Liedtke, T.J. Kock, B.K. Ekstrom, I.M. Royer, D.W. Rondorf
Juvenile Salmonid survival, passage, and egress at McNary Dam during tests of temporary spillway weirs, 2009 Juvenile Salmonid survival, passage, and egress at McNary Dam during tests of temporary spillway weirs, 2009
We evaluated behavior, passage, and survival of juvenile salmonids at McNary Dam in relation to the temporary spillway weirs (TSWs) using acoustic telemetry during 2009. The TSWs were located in spill bays 4 and 20 during spring and in spill bays 19 and 20 during summer. Our objectives were to assess the performance of the TSWs as a fish passage alternative. We also examined how tailrace
Authors
N.S. Adams, T.L. Liedtke
Non-USGS Publications**
Allen, B., T.L. Liedtke, A. Daniel, J. Begala, M. Salway, and J. Beeman. 2001. Monitoring tailrace egress in the stilling basin, the ice-trash sluiceway, and the powerhouse of The Dalles Dam, 2000. U.S. Army Corps of Engineers, Portland, OR. Contract No. W66QKZ00391996
Duran, I.N., T.L. Liedtke, and J.H. Petersen. 2002. Predator-prey interactions in The Dalles Dam tailrace. U.S. Army Corps of Engineers, Portland, OR.
Smith, C.D., T.L. Liedtke, B.J. Hausmann, J.L. Schei, J.R. Lyng, L.P. Gee, and J.W. Beeman. 2004. Tailrace Egress of yearling and subyearling Chinook salmon and juvenile steelhead following juvenile bypass system passage at John Day Dam, 2002. U.S. Army Corps of Engineers, Portland District, Portland, OR.
**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.