Salmonid life history, phenology, and distribution within a large river basin

Abstract

Where fishes are found, and in what temporal patterns and under which physical conditions, are basic questions of biology and management. Salmonid species occupy distinct habitats across their life stages, usually reproduce only once, and are subject to intense anthropogenic pressures. Patterns of occupancy, life history, and phenology vary among and within species, which can be usefully explored at the watershed scale.