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Environmental Sustainability Division

P Scott Titzler

P Scott Titzler

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Scott Titzler joined the Ecology group in 1999 and is currently a fisheries ecologist who manages and supports a diversity of freshwater river and estuarine research projects. He utilizes leading-edge and PNNL developed technology and methods to assess juvenile and adult fishes in response to river flow management, modified aquatic systems, energy development and infrastructure modifications. Most recently, Scott’s research has included the use of acoustic telemetry, hydroacoustic, and Sensor Fish technologies to evaluate fish passage, survival and behaviors of both juvenile and adult large-river fishes. Additionally, he supports projects that evaluate samlonid habitat and hydrodynamic conditions near aquatic structures.

Research Interests

  • Acoustic Telemetry
  • Hydroacoustics
  • Aquatic hydraulic and thermal evaluation
  • Fish habitat and behavior

Education and Credentials

  • A.A., Arts & Sciences, Columbia Basin College, 1989
  • B.S., Wildlife Biology, Washington State University. 1993

PNNL Publications


  • Martinez J.J., Z. Deng, P. Titzler, J.P. Duncan, J. Lu, R.P. Mueller, and C. Tian, et al. 2019. "Hydraulic and Biological Characterization of a Large Kaplan Turbine." Renewable Energy 131. PNNL-SA-123309. doi:10.1016/j.renene.2018.07.034
  • Missik J.E., H. Liu, Z. Gao, M. Huang, X. Chen, E.V. Arntzen, and D.P. McFarland, et al. 2019. "Groundwater-River Water Exchange Enhances Growing Season Evapotranspiration and Carbon Uptake in a Semiarid Riparian Ecosystem." Journal of Geophysical Research. Biogeosciences 124, no. 1:99-114. PNNL-SA-142097. doi:10.1029/2018JG004666
  • Zang X., J.J. Martinez, J. Lu, P. Titzler, and Z. Deng. 2019. "Does the Hood Canal Bridge traffic noise affect migrating steelhead smolts?." In OCEANS 2019 MTS/IEEE, October 27-31, 2019, Seattle, WA. Piscataway, New Jersey:IEEE. PNNL-SA-147262. doi:10.23919/OCEANS40490.2019.8962877


  • Bao J., T. Zhou, M. Huang, Z. Hou, W.A. Perkins, S.F. Harding, and P. Titzler, et al. 2018. "Modulating factors of hydrologic exchanges in a large-scale river reach: Insights from three-dimensional computational fluid dynamics simulations." Hydrological Processes 32, no. 23:3446-3463. PNNL-SA-123673. doi:10.1002/hyp.13266
  • Zhou T., J. Bao, M. Huang, Z. Hou, E.V. Arntzen, X. Song, and S.F. Harding, et al. 2018. "Riverbed Hydrologic Exchange Dynamics in a Large Regulated River Reach." Water Resources Research 54, no. 4:2715-2730. PNNL-SA-123666. doi:10.1002/2017WR020508


  • Deng Z., J.P. Duncan, J.L. Arnold, T. Fu, J.J. Martinez, J. Lu, and P.S. Titzler, et al. 2017. "Evaluation of Boundary Dam Spillway Using an Autonomous Sensor Fish Device." Journal of Hydro-Environment Research 14. PNNL-SA-113125. doi:10.1016/j.jher.2016.10.004


  • Li X., Z. Deng, J.J. Martinez, T. Fu, P.S. Titzler, J.S. Hughes, and M.A. Weiland, et al. 2015. "Three-Dimensional Tracking of Juvenile Salmon at Mid-Reach Location between Dams." Fisheries Research 167. PNWD-SA-10404. doi:10.1016/j.fishres.2015.01.018



  • McMichael G.A., R.A. Harnish, B.J. Bellgraph, J.A. Carter, K.D. Ham, P.S. Titzler, and M.S. Hughes. 2010. Migratory Behavior and Survival of Juvenile Salmonids in the Lower Columbia River and Estuary in 2009. PNNL-19545. Richland, WA: Pacific Northwest National Laboratory. Migratory Behavior and Survival of Juvenile Salmonids in the Lower Columbia River and Estuary in 2009
  • Perkins W.A., P.S. Titzler, M.C. Richmond, J.A. Serkowski, S.E. Kallio, and B.J. Bellgraph. 2010. Acoustic Doppler Current Profiler Surveys of Velocity Downstream of Albeni Falls Dam. PNNL-19816. Richland, WA: Pacific Northwest National Laboratory. Acoustic Doppler Current Profiler Surveys of Velocity Downstream of Albeni Falls Dam
  • Titzler P.S., G.A. McMichael, and J.A. Carter. 2010. "Autonomous Acoustic Receiver Deployment and Mooring Techniques for Use in Large Rivers and Estuaries." North American Journal of Fisheries Management 30, no. 4:853-859. PNNL-SA-68361. doi:10.1577/M09-143.1




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