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This guide describes underwater methods using snorkeling gear to study fish populations in flowing waters of the Intermountain West. It outlines procedures for estimating salmonid abundance and habitat use and provides criteria for identifying and estimating the size of fish underwater.
Author(s): Russell F. Thurow
Keywords: snorkeling, underwater equipment, population estimates, habitat, Salmonidae, species identification, anadromous fishes
Source: Gen. Tech. Rep. INT-GTR-307. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 28 p.
Year: 1994
This 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…
Author(s): Steven F. Railsback, Bret C. Harvey, Stephen K. Jackson, Roland H. Lamberson
Keywords: Individual-based model, instream flow, population model, water temperature, Salmonidae, stream, trout, turbidity
Source: Gen. Tech. Rep. PSW-GTR-218. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 254 p
Year: 2009
Elements in bull trout biology, population dynamics, habitat, and biotic interactions important to conservation of the species are identified. Bull trout appear to have more specific habitat requirements than other salmonids, but no critical thresholds of acceptable habitat condition were found.…
Author(s): Bruce E. Rieman, John D. Mclntyre
Keywords: Salmonidae, char, Salvelinus confluentus, population dynamics, persistence, sensitive species, metapopulation, conservation biology
Source: Gen. Tech. Rep. INT-302. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 38 p.
Year: 1993
Drift-feeding models are essential components of broader models that link stream habitat to salmonid populations and community dynamics. But is an additional feeding mode needed for understanding and predicting salmonid population responses to streamflow and other environmental factors? We…
Author(s): Bret Harvey, Steve Railsback
Keywords: Drift, Search feeding, Foraging mode, Individual-based models, Salmonidae, stream fish
Source: Environmental Biology of Fishes. 97(5): 615-625
Year: 2014