WWRC 89-41
Relation of Geomorphology to Stream Habitat
and Trout Standing Stock in Small Rocky Mountain Streams
Abstract
Evidence that drainage basin morphology and
trout standing stock are related through a functional link
between geomorphic features and stream habitat quality is
presented. Numerous significant univariate correlations
were found between geomorphic variables, stream habitat
variables, and trout standing stock in both high-elevation
forest and low-elevation rangeland streams. Canonical
correlations between geomorphic variables and stream habitat
variables provided in-sight into the form of the funetional
link. Multiple-regression equations predicting trout standing stock
were dominated by geomorphic variable. When geomorphic
variables alone were incorporated into regression
models they predicted trout standing stock as accurately as
did stream habitat variables.
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