Record Display for the EPA National Library Catalog

RECORD NUMBER: 235 OF 241

OLS Field Name OLS Field Data
Main Title Trout Distribution and Habitat in Relation to Geology and Geomorphology in the North Fork Humboldt River Drainage, Northeastern Nevada.
Author Nelson, R. L. ; Platts, W. S. ; Larsen, D. P. ; Jensen, S. E. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Intermountain Forest and Range Experiment Station, Boise, ID. Forestry Sciences Lab. ;Chapman (Don) Consultants, Inc., Boise, ID. ;White Horse Associates, Smithfield, UT.
Publisher c1994
Year Published 1994
Report Number EPA/600/J-94/508;
Stock Number PB95-148706
Additional Subjects Trout ; Aquatic habitats ; Geomorphology ; Animal ecology ; Distribution(Property) ; Freshwater fish ; Drainage ; River basins ; North Fork Humboldt River ; Nevada ; Tables(Data) ; Reprints ; Oncorhynchus clarki henshawi ; Salvelinus fontinalis
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB95-148706 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 03/06/1995
Collation 24p
Abstract
We studied the existing distribution of native Lahontan cutthroat trout Oncorhynchus clarki henshawi and exotic brook trout Salvelinus fontinalis with respect to geologic and geomorphic land-classes in the upper North Fork Humboldt River drainage, Nevada. We evaluated habitat conditions in study sites to determine which measured components of habitat structure provided the best discriminators among study stream reaches in the different land-classes and among trout-supporting and unpopulated study reaches. At a finer level of resolution, we used the habitat attributes with the most discriminatory power to plot the distributions of study areas by land-class and by presence or absence of trout along coordinate axes reflecting environmental gradients defined by these attributes.