(888) 224-1221
Locations
Ana Olsen, B.S.
Biological Technician II
B.S. Fish, Marine Biology, B.S. Aquatic and Fisheries Science
Issaquah, Washington
Author: Kaylie Contessa
Elene Trujillo, M.S.
Senior Biologist
B.A., Anthropology; M.S. Aquatic and Fishery Science
Issaquah, Washington
Elene Trujillo is a senior fisheries biologist with more than two decades of scientific research and biostatistical expertise in both marine and freshwater systems. Her diverse work spans aquatic disease and ecology, resource management, restoration effectiveness, and scientific communication. Elene specializes in developing regional metrics that guide effectiveness evaluations, providing evidence to support decision-making and policy development. With her strong background in project management, biostatistics, and communications from organizations including the Puget Sound Partnership, NOAA’s Northwest Fisheries Science Center, and King County Department of Natural Resources and Parks, Elene excels at connecting people, data, and innovative ideas to address complex resource management challenges. Her published research includes work on cumulative effects of nearshore habitat conservation and climate change impacts on salmon migration.
Selected Publications
Diefenderfer H.L., G.D. Steyer, M.C. Harwell, A.J. LoSchiavo, H.A. Neckles, D.M. Burdick, G.E. Johnson, K.E. Buenau, E. Trujillo, J.C. Callaway, N.K. Ganju, R.M. Thom, and R.R. Twilley. 2020. Applying cumulative effects to strategically advance large-scale ecosystem restoration. Frontiers in Ecology and the Environment 19:108-117. https://doi.org/10.1002/fee.2274
Crozier L.G., J.E. Siegel, L.E. Wiesebron, E.M. Trujillo, B.J. Burke, B.P. Sandford, and D.L. Widener. 2020. Snake River sockeye and Chinook salmon in a changing climate: Implications for upstream migration survival during recent extreme and future climates. PLoS ONE 15(9):e0238886. https://doi.org/10.1371/journal.pone.0238886
Hanadi Succar, B.A.
Biological Technician
B.A.
Portland, Oregon
Hanadi Succar is a biological technician who brings expertise in fish monitoring and population assessment. At Cramer Fish Sciences, she has mastered diverse sampling techniques including seining, gill netting, nearshore sampling, PIT tagging, and fin-clipping. These skills enable her to collect critical data for evaluating reservoir management, water quality, and species behavior and survival rates. Prior to joining CFS, Hanadi served as a biological science assistant with the Oregon Department of Fish and Wildlife, where she developed proficiency in fish identification, genetic sampling, and multi-method trapping techniques across various species and life stages. As an experienced angler skilled in navigating challenging waterways, she combines practical field knowledge with academic training from the University of Oregon.
Jackson Hoeke, M.S.
Biological Technician
B.S. Marine Biology; M.S. Marine Science
Portland, Oregon
Jackson Hoeke is a biological technician with years of experience as a marine and freshwater biologist, with a specific focus on population dynamics of wild and hatchery salmonids in Oregon’s Willamette watershed. His research portfolio encompasses deepwater ecology, biodiversity assessments, and invasive species impact studies. Jackson excels in complex data analysis, utilizing R Studio for advanced statistical methods including ANOVA, Spearman cross-correlation, and nMDS, while leveraging ArcGIS for spatial mapping and visualization. His published research includes studies on introduced aquatic species and contributions to marine protected area management evaluations.
Jason Shaffer, M.S.
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
Joe Spindler, B.S.
Biological Technician
B.S. Wildlife Ecology and Conservation
Portland, Oregon
Joseph Spindler is a biological technician with experience focused on habitat improvement, restoration, and surveying. As an impassioned ecologist, Joseph brings valuable skills in collecting a variety of field data as well as expertise in ArcGIS, data analysis, grant writing, and project management. He holds professional certifications including an FAA Remote Pilot License, Boaters License, and Herbicide Public Applicator License, adding versatility to his technical capabilities in the field.
Kevin Stoner, M.S.
Biological Technician
B.S. Wildlife and Fisheries Biology, M.S. Oceanography and Coastal Sciences
Phone: (888) 224-1221
Portland, Oregon
Kevin is a biological technician with four years of experience working in aquatic and wetland systems. He has worked on a variety of projects that have focused on informing management and restoration decisions. While working as a technician on projects studying the distribution and movement of an endemic bass species in South Carolina, he gained experience using PIT tags, radio telemetry, and backpack electrofishers. Through his work in the Florida Everglades, he became proficient at collecting and using keys to identify the wide variety of fish, macroinvertebrates and amphibians found in the Everglades. His master’s research focused on how coastal marsh restoration design impacted ecosystems processes and plant composition and through this work he built leadership, plant identification and data analysis skills.
Rahul Rai, M.S.
Biological Technician
M.S. Biological Sciences, B.S. Zoology
Phone: (888) 224-1221
Portland, Oregon
Rahul Rai is a biological technician who is skilled in biological and fisheries management activities including standard field sampling, data collection, analysis and scientific report writing. His work focuses on understanding anthropogenic impacts on aquatic ecosystems and providing sustainable solutions. Rahul has extensive field and project management experience using different net settings, electrofishing, eDNA, otolith aging, boat operations, public interviews and analytical tools such as Excel, R and GIS. Prior to joining Cramer Fish Sciences, he worked on comprehensive state annual lake surveys and aquatic invasive species data collection with South Dakota Game, Fish and Parks. His graduate research studied how artificial dams and reservoirs impact freshwater fish populations.
Shannon Forsberg, B.S.
Biological Technician
B.S. Environmental Science
Portland, Oregon
Shannon Forsberg is a biological technician specializing in fisheries management and plant ecology across Oregon’s Willamette and Umpqua Valleys. At Cramer Fish Sciences, she has expanded her expertise in fish monitoring techniques, refining methods such as seining, gill netting, and nearshore sampling while advancing her skills in PIT tagging and fin clipping operations. She holds a B.S. in Environmental Science with a minor in Biology from the University of Oregon. Prior to joining Cramer Fish Sciences, Shannon conducted comprehensive spawning grounds surveys on the McKenzie and Umpqua Rivers and implemented critical creel surveys on the Umpqua and Siuslaw River systems with the Oregon Department of Fish and Wildlife.
Sienna Doering, B.S.
Biological Technician
B.S. Environmental and Ocean Sciences
Portland, Oregon
Travis Anderberg, B.S.
Senior Forester
B.S. Forest Resources
Phone: (888) 224-1221
Portland, Oregon
Travis Anderberg is a senior forester with 20 years of experience in natural resource management and forest improvement projects. His expertise lies in maximizing the financial and ecological value of forestlands while meeting landowner desires and regulatory compliance. Travis is particularly skilled in developing forestland management plans, permitting, habitat restoration, timber sale management, forest products appraisal, and road design and construction. Throughout his career, he has established and managed long-term inventory and strategic planning databases for several tree farms totaling 9,500 acres and prepared hundreds of in-depth timber management and conservation activity plans. His diverse experience spans work with trusts, family tree farms, timberland investors, estates, conservation groups, tribes, government agencies, and industrial tree farms. He is certified as a Natural Resource Conservation Service Technical Service Provider, American Tree Farm System Qualified Inspector, and FAA Remote Pilot.