Skip to Main Content
InSTREAM: the individual-based stream trout research and environmental assessment modelAuthor(s): Steven F. Railsback; Bret C. Harvey; Stephen K. Jackson; Roland H. Lamberson
Source: Gen. Tech. Rep. PSW-GTR-218. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 254 p
Publication Series: General Technical Report (GTR)
Station: Pacific Southwest Research Station
Download Publication (2.33 MB)
DescriptionThis report documents Version 4.2 of InSTREAM, including its formulation, software, and application to research and management problems. InSTREAM is a simulation model designed to understand how stream and river salmonid populations respond to habitat alteration, including altered flow, temperature, and turbidity regimes and changes in channel morphology. The model represents individual fish at a daily time step, with population responses emerging from how individuals are affected by their habitat and by each other (especially, via competition for food). Key individual behaviors include habitat selection (movement to the best available foraging location), feeding and growth, mortality, and spawning. Fish growth depends on prey availability and hydraulic conditions. Mortality risks due to terrestrial predators, piscivorous fish, and extreme conditions are functions of habitat and fish variables. Field and analysis techniques for applying InSTREAM are based in part on extensive analysis of the model’s sensitivities and uncertainties. The model’s software provides graphical displays to observe fish behavior, detailed output files, and a tool to automate simulation experiments.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
CitationRailsback, Steven F.; Harvey, Bret C.; Jackson, Stephen K.; Lamberson, Roland H. 2009. InSTREAM: the individual-based stream trout research and environmental assessment model. Gen. Tech. Rep. PSW-GTR-218. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 254 p
KeywordsIndividual-based model, instream flow, population model, water temperature, Salmonidae, stream, trout, turbidity
- Feeding modes in stream salmonid population models: Is drift feeding the whole story?
- Importance of fish behaviour in modelling conservation problems: food limitation as an example
- Individual-based model formulation for cutthroat trout, Little Jones Creek, California
XML: View XML