Thanks for visiting my webpage.  I’m a fish ecologist and currently a Research Associate at the University of Washington in the School of Aquatic and Fishery Sciences in Tom Quinn’s research group.

Research Interests

I examine patterns and test hypotheses regarding the causes and consequences of the distribution, abundance, and movement of aquatic organisms. This includes determining the distribution and movement of animals (e.g., alewife, striped bass, blue catfish, crayfish and Pacific salmon) using telemetry and then relating those movements to environmental factors that cause them to stay or move. I also examine the relationships between ecological drivers and fishes including environmental heterogeneity, abiotic gradients, and anthropogenic activities.

NOAA Monster Jam Seminar

January 26, 2017 – Click here to view a recording of the talk


View: Smith CV

Current and Recent Research Projects

  • Quantifying density, salmon smolt predation, and movement of non-native predators in the San Joaquin River, CA
  • Distribution of Chinook and Coho salmon in Puget Sound, WA
  • Depth distribution of blue catfish in Milford Reservoir, KS
  • Impacts of dams on fish assemblages in the Neosho River, KS

R code

When I learn something new in R, I try to compile generic code into a reference document.  Feel free to use it. Download here:

R code Last updated January 31, 2017

Recent Publications

Kennedy, C.G., M.E. Mather, J.M. Smith. 2017. Quantifying site-specific physical heterogeneity within an estuarine seascape. Estuaries and Coasts DOI:10.1007/s12237-016-0207-9. PDF.

Arostegui, M.C., J.M. Smith, A.N. Kagley, D. Spilsbury-Pucci, K.L., Fresh, T.P. Quinn. 2017. Spatially clustered patterns and segregation of sub-adult Chinook Salmon within the Salish Sea. Marine and Coastal Fisheries 9:1-12PDF

Kennedy, C., M.E. Mather, J.M. Smith, J.T. Finn, L. Deegan. 2016. Discontinuities concentrate mobile predators: Quantifying organism-environment interactions at a seascape scale. Ecosphere 7: e01226. 10.1002/ecs2.1226.  PDF

Demetras, N.J., D.D. Huff, C.J. Michel, J.M. Smith, G.R. Cutter, S.A. Hayes, S.T. Lindley. 2016. Development of baited predation event recorders to quantify juvenile Chinook salmon (Oncorhynchus tshawytscha) predation in a river environment. Fishery Bulletin 114:179-185. PDF

Smith, J.M., K.L. Fresh, A.N. Kagley, T.P. Quinn. 2015. Ultrasonic telemetry reveals seasonal variation in depth distribution and diel vertical migrations of sub-adult Chinook and coho salmon in Puget Sound. Marine Ecology Progress Series 532:227-242. PDF

See all publications