Index Catalog // ScholarsArchive@OSU

A multi-trophic level examination of recreational impacts on a national wild and scenic river

Creator:: Wright, Kristopher Keith
Abstract:: Initially, components of an aquatic food web were examined to study impacts of recreational use on the aquatic ecology of Quartzville Creek, Oregon in 1995 and 1996. Measurements of the food web components consisted of observations of harlequin ducks (Histrionicus histrionicus), visual counts of the larval caddisfly Dicosmoecus gilvipes, benthic...
Resource Type:: Masters Thesis
Full Text:: Examination of Recreational Impacts on a National Wild and Scenic River. Abstract approved: Judith Lew

The species composition, density, and distribution of the littoral zooplankton assemblage in Crater Lake, Oregon

Creator:: Warncke, William Madara
Abstract:: The species compositions and densities of the littoral and pelagic zooplankton assemblages in Crater Lake were compared. The littoral and pelagic zooplankton assemblages of most lakes are typically different due to different habitat conditions in the two zones. The littoral zone of Crater Lake lacks many of the habitat characteristics,...
Resource Type:: Masters Thesis
Full Text:: littoral zone at each sampling site. c. Describe the wind patterns of the lake and their potential effect

Issues surrounding the Biota of the Tualatin River Basin

Creator:: Li, Judith L., Gregory, Stanley V., and Oregon State University. Water Resources Research Institute
Abstract:: Tributaries of the Tualatin River cascade down high gradient slopes for relatively short distances, then flow into the low gradient mainstem which meanders for much of its length. The gentle, east-facing slopes of Oregon's Coast Range provide the geomorphic and climatic template for the watershed's patterns of discharge, water quality,...
Resource Type:: Technical Report
Full Text:: resource management. Issues Surrounding the Biota of the Tualatin River Basin by Judith Li and Stanley

Cumulative effects of riparian disturbances along high desert trout streams of the John Day Basin, Oregon

Creator:: Li, Hiram W., Lamberti, Gary A., Pearsons, Todd N., Tait, Cynthia K., Li, Judith L., and Buckhouse, John C.
Abstract:: In a study of cumulative effects of riparian disturbance by grazing on the trophic structure of high desert trout streams, watersheds with greater riparian canopy had higher standing crops of rainbow trout Oncorhynchus mykiss, lower daily maximum temperatures (range, 16-23°C compared with 26-31°C), and perennial flow. Watershed aspect influenced the...
Resource Type:: Article
Full Text:: ,3 CYNTHIA K. TAIT, AND JUDITH L. Li Department of Fisheries and Wildlife. Oregon State University

News & Views, 1997 Summer

Creator:: Edge, W. Daniel
Resource Type:: Other
Full Text:: Science Foundation Pacific N orthw est Ecosystem R esearch C onsortium Stan G regory U .S . E nv ironm

Influences of riparian canopy on aquatic communities in high desert streams of eastern Oregon

Creator:: Tait, Cynthia K.
Abstract:: Because riparian canopy controls most energy inputs to stream ecosystems, it directly affects the structure of aquatic food webs and the ecological processes that govern interactions among trophic levels. This study addresses the interdependence among riparian canopy, benthic community structure, and the carrying capacity of high desert streams for salmonid...
Resource Type:: Dissertation
Full Text:: , Judith L. Li, Gary A. Lamberti, Todd N. Pearsons, and Hiram W. Li Published in Journal of the North

News & Views, 1998 Summer

Creator:: Loegering, John P.
Resource Type:: Other
Full Text:: . Judith and Dr. Hiram Lidgerding, Dr. and Mrs. Burt Lindzey, Dr. and Mrs. James S. Long, Mrs. Regina D

News & Views, 1991/12

Creator:: Edge, Dan
Resource Type:: Other
Full Text:: view. Dr. Hiram Li and Judith Vergun, a Ph.D. student in Range- land Resources, are submitting a plan

Age, growth, and diet of fish in the Waldo Lake natural-cultural system

Creator:: Swets, Nicola L.
Abstract:: Waldo Lake, located in the Oregon Cascades, is considered to be one of the most dilute lakes in the world. Even with very low nutrient concentrations and sparse populations of zooplankton, introduced fish in the lake are large in size and in good condition when compared to fish from other...
Resource Type:: Masters Thesis
Full Text:: a 0 0 2 MILES 2 3 4, 5 i 4 6 8 KILOMETERS Charlton Butte (2134 m) C N The

ScholarsArchive@OSU

A multi-trophic level examination of recreational impacts on a national wild and scenic river

The species composition, density, and distribution of the littoral zooplankton assemblage in Crater Lake, Oregon

Issues surrounding the Biota of the Tualatin River Basin

Cumulative effects of riparian disturbances along high desert trout streams of the John Day Basin, Oregon

News & Views, 1997 Summer

Influences of riparian canopy on aquatic communities in high desert streams of eastern Oregon

News & Views, 1998 Summer

News & Views, 1991/12

Age, growth, and diet of fish in the Waldo Lake natural-cultural system

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search