Lang, Railsback & Associates
250 California Avenue
Arcata, CA 95521
707 822 0453


Back to Lang, Railsback & Associates 

Publications resulting from many of these projects are listed on Steve Railsback's resume.

Development and application of individual-based fish models, for clients including the Electric Power Research Institute, U. S. Forest Service, U. S. Fish and Wildlife Service, and the University of Washington. We develop software for rapid implementation of models, and develop and test modeling approaches. Through our products and publications, we are recognized as international leaders in the theory, formulation, implementation, and testing of individual-based models, especially for fisheries research and management. Some of these projects were conducted in collaboration with the mathematical modeling graduate program, Department of Mathematics, Humboldt State University and are described at the Individual-based Modeling at HSU page.

Development and application of individual-based models for other ecological resources. We collaborate with empirical scientists to build models for ecological management applications. With Professor Matt Johnson of Humboldt State University's Department of Wildlife, we built a model of how land use affects populations of migratory songbirds and the pest control services they provide on coffee farms in Jamaica. With the Forest Service's Redwoods Sciences Laboratory, we built a model of how river flow and temperature regimes affect breeding success of foothills yellow-legged frogs. We consulted with the American Bird Conservancy to start their work modeling how flow regimes and reservoir management in the midwest affect sandbar-breeding colonies of least terns.

Assessment of fluctuating flow effects on trout and Colorado pikeminnow below Flaming Gorge Dam, for the Electric Power Research Institute and Western Area Power Administration. We developed and applied unique, individual-based models for how hydropower load-following fluctuations affect downstream fish. Products included models for adult trout in the tailwater and for juvenile pikeminnow rearing in side-channel backwaters, and analyses of how alternative load-following scenarios affect fish growth and survival.

Hydropower environmental research and development support, for Pacific Gas & Electric Company. We designed a strategic R&D program to improve environmental management of one of the largest private hydroelectric systems in the world. We managed and, in part, conduct the research projects. Products included a series of research planning documents and study plans for specific projects.

Review of instream flow assessment methods, for the Electric Power Research Institute. We identified and critically reviewed the models and techniques now in common use for instream flow assessment, and provided guidance on when and how these methods should be used. The primary product was the report: Instream flow assessment methods: guidance for evaluating instream flow needs in hydropower licensing. TR-1000554, EPRI, Palo Alto, California (2000).

Development of procedures for the Demonstration Flow Assessment Method, for the Electric Power Research Institute. We recommended procedures for making "demonstration flow assessment" studies credible and reproducible. These studies assess instream flow needs via visual observation of alternative flows. We produced the report Demonstration flow assessment: procedures for judgement-based instream flow studies. TR-1000554, EPRI, Palo Alto, California (2004).

Groundwater bioremediation feasibility, for Woodward-Clyde Consultants. We provided technical expertise for a feasibility analysis of bioremediation of a major chlorinated hydrocarbon plume.

Terror Lake salmon monitoring program, for Trihey & Assoc. We helped conduct the final analysis of a nine-year anadromous fisheries monitoring program for this hydropower project.


Back to Lang, Railsback & Associates