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Relations of Geomorphology to Stream Habitat and Trout Standing Stock in Small Rocky Mountain Streams
Author(s) -
Lanka Robert P.,
Hubert Wayne A.,
Wesche Thomas A.
Publication year - 1987
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1987)116<21:rogtsh>2.0.co;2
Subject(s) - habitat , streams , trout , drainage basin , ecology , stock (firearms) , environmental science , hydrology (agriculture) , geography , fishery , geology , biology , fish <actinopterygii> , computer network , geotechnical engineering , archaeology , computer science , cartography
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 insight into the form of the functional link. Multiple‐regression equations predicting trout standing stock were dominated by geomorphic variables. When geomorphic variables alone were incorporated into regression models they predicted trout standing stock as accurately as did stream habitat variables.