Tobias J Kock
Tobias Kock is a Supervisory Research Fish Biologist at the Columbia River Research Laboratory (CRRL) in Cook, Washington. His research team works on studies focused on Pacific salmon, dams, fish ecology, and salmon reintroductions throughout the western United States. His research is highly collaborative and typically involves State, Federal and Tribal partners.
Tobias Kock's research team conducts investigations into dam passage and survival for juvenile and adult Pacific salmon, assesses fish collection and passage devices, researches the ecological effects of high-head dams and reservoirs on anadromous fish, and evaluates various aspects of salmon and steelhead reintroductions upstream of impassable dams. He is currently working on studies that evaluate the effects of flow management on juvenile salmon survival, the responses of adult salmon and steelhead to trap-and-haul, assessment of dam-passage survival of juvenile salmon, and developing methods to estimate survival of salmon fry in reservoirs. His research is highly collaborative. Kock works closely with Tribal, State and Federal partners to provide unbiased science for use by a diverse group of partners in several watersheds across the western United States.
Professional Experience
2016-Present – Supervisory Research Fish Biologist, U.S. Geological Survey, Western Fisheries Research Center, Columbia River Research Laboratory, Cook, WA
2002 to 2016 - Fish Biologist, U.S. Geological Survey, Western Fisheries Science Center, Columbia River Research Laboratory, Cook, WA
2000-2002 - Graduate Student, University of Idaho, Moscow, ID
1998-2000 - Biological Science Technician, University of Idaho and U.S. Geological Survey
Education and Certifications
M.S. 2004. Fisheries Science, University of Idaho, Moscow, ID
B.A. 2000. Biology, Minor in Religion, Pacific Lutheran University, Tacoma, WA
Affiliations and Memberships*
American Fisheries Society
AFS-BES/ASCE-EWRI Joint Committee on Fisheries Engineering and Science (Webinar Task Group Member)
Science and Products
Benefits of prescribed flows for salmon smolt survival enhancement vary longitudinally in a highly managed river system
Dam operations affect route-specific passage and survival of juvenile Chinook salmon at a main-stem diversion dam
Angler harvest, hatchery return, and tributary stray rates of recycled adult summer steelhead Oncorhynchus mykiss in the Cowlitz River, Washington
Behavior, passage, and downstream migration of juvenile Chinook salmon from Detroit Reservoir to Portland, Oregon, 2014–15
Evaluation of two juvenile salmon collection devices at Cowlitz Falls Dam, Washington, 2014
Evaluation of stream flow effects on smolt survival in the Yakima River Basin, Washington, 2012-2014
Evaluation of the behavior and movement of adult summer steelhead in the lower Cowlitz River, Washington, following collection and release, 2013-2014
Post-release behavior and movement patterns of Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) after capture using alternative commercial fish gear, lower Columbia River, Washington and Oregon, 2013
Evaluation of juvenile salmonid behavior near a prototype weir box at Cowlitz Falls Dam, Washington, 2013
Evaluation of the behavior and movement patterns of adult coho salmon and steelhead in the North Fork Toutle River, Washington, 2005-2009
Review of a model to assess stranding of juvenile salmon by ship wakes along the Lower Columbia River, Oregon and Washington
Snake River fall Chinook salmon life history investigations: Annual report 2011 (April 2011 - March 2012)
Science and Products
Benefits of prescribed flows for salmon smolt survival enhancement vary longitudinally in a highly managed river system
Dam operations affect route-specific passage and survival of juvenile Chinook salmon at a main-stem diversion dam
Angler harvest, hatchery return, and tributary stray rates of recycled adult summer steelhead Oncorhynchus mykiss in the Cowlitz River, Washington
Behavior, passage, and downstream migration of juvenile Chinook salmon from Detroit Reservoir to Portland, Oregon, 2014–15
Evaluation of two juvenile salmon collection devices at Cowlitz Falls Dam, Washington, 2014
Evaluation of stream flow effects on smolt survival in the Yakima River Basin, Washington, 2012-2014
Evaluation of the behavior and movement of adult summer steelhead in the lower Cowlitz River, Washington, following collection and release, 2013-2014
Post-release behavior and movement patterns of Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (Oncorhynchus kisutch) after capture using alternative commercial fish gear, lower Columbia River, Washington and Oregon, 2013
Evaluation of juvenile salmonid behavior near a prototype weir box at Cowlitz Falls Dam, Washington, 2013
Evaluation of the behavior and movement patterns of adult coho salmon and steelhead in the North Fork Toutle River, Washington, 2005-2009
Review of a model to assess stranding of juvenile salmon by ship wakes along the Lower Columbia River, Oregon and Washington
Snake River fall Chinook salmon life history investigations: Annual report 2011 (April 2011 - March 2012)
*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