Fisheries Biologist

B.S. Wildlife and Fisheries Management, Minor Biology; M.S. Natural Resources with a Concentration in Fisheries

Phone: (888) 224-1221

Portland, Oregon

Jason Shaffer is a fisheries biologist with nearly a decade of experience conducting a variety of research and monitoring projects. At Cramer Fish Sciences, he manages a study examining the use of potential habitat breaks for delimiting the upstream extent of fish habitats, which will influence forested landscapes throughout Washington state. Jason brings expertise in both conventional fisheries sampling techniques including snorkeling, downstream migrant trapping, seining, gillnetting, spawning surveys. His breadth of expertise also encompasses using cutting-edge technology like electrofishing, SONAR, acoustic telemetry, eDNA, and artificial intelligence. He is skilled in sampling theory, statistical modeling in both frequentist and Bayesian frameworks, data visualization, and geographic information systems.

Selected Publications

Shaffer, J.T., A.P. Kinziger, E.P. Bjorkstedt, and A. Buchheister. 2024. Comparison of environmental DNA and underwater visual count surveys for detecting juvenile Coho Salmon in small rivers. North American Journal of Fisheries Management 44(2):449–462.

Kinziger, A.P., Bjorkstedt, E.P., Buchheister, A., Henderson, M., Bandy, G., Herman, B., Shaffer, J.T. 2023. Standardizing environmental DNA methodologies for coho salmon.  https://dot.ca.gov/-/media/dot-media/programs/research-innovation-system-information/documents/final-reports/5-task-3697-final-report-a11y.pdf