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Energy and Environment Directorate

Ryan Harnish

Ryan Harnish

(509) 371-7239

Biography

Ryan Harnish is a senior research scientist. Since joining PNNL in 2007, his work has primarily focused on the use of acoustic telemetry to assess the behavior and survival of salmon and steelhead smolts in the Snake and Columbia River basins. Specifically, this work has addressed the effects of hydropower projects on the behavior and survival of smolts, and the effects of acoustic transmitter implantation on the performance of tagged fish.

Research Interests

  • Acoustic telemetry
  • Survival and behavior of salmonid smolts
  • Effects of hydropower projects on fisheries resources
  • Fish population dynamics
  • Conservation of native fishes

Education and Credentials

  • M.S., Fish and Wildlife Management, Montana State University, 2007
  • B.S., Biology, Montana State University, 2001

Affiliations and Professional Service

  • American Fisheries Society

PNNL Publications

2021

  • Bellgraph B.J., T.C. Douville, A. Somani, K.R. DeSomber, R.S. O'Neil, R.A. Harnish, and J.D. Lessick, et al. 2021. Deployment of Energy Storage to Improve Environmental Outcomes of Hydropower. PNNL-SA-157672. Richland, WA: Pacific Northwest National Laboratory. Deployment of Energy Storage to Improve Environmental Outcomes of Hydropower
  • Ham K.D., P. Titzler, R.A. Mueller, and R.A. Harnish. 2021. Evaluation of a Surface Spill Operation to Return Adult Steelhead Overshoots Downstream of McNary Dam. PNNL-30030. Richland, WA: Pacific Northwest National Laboratory. Evaluation of a Surface Spill Operation to Return Adult Steelhead Overshoots Downstream of McNary Dam
  • Janak J.M., T.J. Linley, R.A. Harnish, and S.D. Shen. 2021. "Partitioning maternal and exogenous diet contributions to otolith 87Sr/86Sr in Kokanee Salmon (Oncorhynchus nerka)." Canadian Journal of Fisheries and Aquatic Sciences 78, no. 8:1146-1157. PNNL-SA-154023. doi:10.1139/cjfas-2020-0242
  • Skalski J.R., S. Whitlock, R.L. Townsend, and R.A. Harnish. 2021. "Passage and survival of juvenile salmonid smolts through dams in the Columbia and Snake Rivers, 2010-2018." North American Journal of Fisheries Management 41, no. 3:678-696. PNNL-SA-155948. doi:10.1002/nafm.10572

2020

  • Harnish R.A., J.R. Skalski, R. Townsend, and K.D. Ham. 2020. "In Search of a Cost-effective Approach for Estimating Dam Passage Survival." North American Journal of Fisheries Management 40, no. 4:865-882. PNNL-SA-149326. doi:10.1002/nafm.10448
  • Pflugrath B.D., R.A. Harnish, B.M. Rhode, K.M. Engbrecht, B.V. Beirao, R.P. Mueller, and E.L. McCann, et al. 2020. "The Susceptibility of Juvenile American Shad to Rapid Decompression and Fluid Shear Exposure Associated with Simulated Hydroturbine Passage." Water 12, no. 2:Article number 586. PNNL-SA-151360. doi:10.3390/w12020586

2019

  • Pflugrath B.D., R.A. Harnish, B.M. Rhode, B. Do Vale Beirao, K.M. Engbrecht, J.R. Stephenson, and A. Colotelo. 2019. "American Eel state of buoyancy and barotrauma susceptibility associated with hydroturbine passage." Knowledge and Management of Aquatic Ecosystems. PNNL-SA-138255. doi:10.1051/kmae/2019012

2018

  • Colotelo A., R.P. Mueller, R.A. Harnish, J.J. Martinez, T. Phommavong, K. Phommachan, and G.A. Thorncraft, et al. 2018. "Injury and Mortality of Two Mekong River Species Exposed to Turbulent Shear Forces." Marine and Freshwater Research 69, no. 12:1945-1953. PNNL-SA-132777. doi:10.1071/MF18126
  • Geist D.R., S.A. Liss, R.A. Harnish, K.A. Deters, R.S. Brown, Z. Deng, and J.J. Martinez, et al. 2018. "Juvenile Chinook Salmon survival when exposed to simulated dam passage after being implanted with a new micro-acoustic transmitter." North American Journal of Fisheries Management 38, no. 4:940-952. PNNL-SA-130560. doi:10.1002/nafm.10198

2017

  • Deng Z., J.J. Martinez, H. Li, R.A. Harnish, C.M. Woodley, J.S. Hughes, and X. Li, et al. 2017. "Comparing the survival rate of juvenile Chinook salmon migrating through hydropower systems using injectable and surgical acoustic transmitters." Scientific Reports 7. PNNL-SA-113136. doi:10.1038/srep42999
  • Mueller R.P., J.M. Janak, S.A. Liss, R.S. Brown, Z. Deng, and R.A. Harnish. 2017. "Retention and effects of miniature transmitters in juvenile American eels." Fisheries Research 195. PNNL-SA-120628. doi:10.1016/j.fishres.2017.06.017

2016

  • Bellgraph B.J., W.A. Perkins, M.C. Richmond, J.A. Serkowski, S.F. Harding, and R.A. Harnish. 2016. Lake Roosevelt White Sturgeon Modeling Support. PNNL-26056. Richland, WA: Pacific Northwest National Laboratory. Lake Roosevelt White Sturgeon Modeling Support

2015

2014

2013

  • McMichael G.A., A.C. O'Toole, R.A. Harnish, and D.M. Trott. 2013. "Juvenile salmonid migratory behavior at the mouth of the Columbia River and within the plume." Animal Biotelemetry 1. PNNL-SA-94109. doi:10.1186/2050-3385-1-14

2012

  • Harnish R.A., G.E. Johnson, G.A. McMichael, M.S. Hughes, and B.D. Ebberts. 2012. "Effect of Migration Pathway on Travel Time and Survival of Acoustic-Tagged Juvenile Salmonids in the Columbia River Estuary." Transactions of the American Fisheries Society 141, no. 2:507-519. PNNL-SA-70629. doi:10.1080/00028487.2012.670576
  • Mueller R.P., E.V. Arntzen, M.A. Nabelek, B.L. Miller, K.J. Klett, and R.A. Harnish. 2012. "Laboratory testing of a modified electroshocking system designed for deepwater juvenile lamprey sampling." Transactions of the American Fisheries Society 141, no. 3:841-845. PNWD-SA-9512. doi:10.1080/00028487.2012.675908

2011

  • Harnish R.A., A.H. Colotelo, and R.S. Brown. 2011. "A review of polymer-based water conditioners for reduction of handling-related injury." Reviews in Fish Biology and Fisheries 21, no. 1:43-49. PNNL-SA-76621. doi:10.1007/s11160-010-9187-1
  • McMichael G.A., R.A. Harnish, J.R. Skalski, K.A. Deters, K.D. Ham, R.L. Townsend, and P.S. Titzler, et al. 2011. Migratory Behavior and Survival of Juvenile Salmonids in the Lower Columbia River, Estuary, and Plume in 2010. PNNL-20443. Richland, WA: Pacific Northwest National Laboratory. Migratory Behavior and Survival of Juvenile Salmonids in the Lower Columbia River, Estuary, and Plume in 2010
  • McMichael G.A., R.A. Harnish, M.A. Weiland, Z. Deng, and M.B. Eppard. 2011. "Fish Passage: A New Tool to Investigate Fish Movement: JSATS." Hydro Review 30. PNNL-SA-78282.

2010

  • Brown R.S., R.A. Harnish, K.M. Carter, J.W. Boyd, K.A. Deters, and M.B. Eppard. 2010. "An evaluation of the maximum tag burden for implantation of acoustic transmitters in juvenile Chinook salmon." North American Journal of Fisheries Management 30. PNNL-SA-65472.
  • McMichael G.A., M.B. Eppard, T.J. Carlson, J.A. Carter, B.D. Ebberts, R.S. Brown, and M.A. Weiland, et al. 2010. "The Juvenile Salmon Acoustic Telemetry System; A New Tool." Fisheries 35, no. 1:9-22. PNWD-SA-7687.
  • 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

2009

2008

Energy and Environment

Core Research Areas

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