Index Catalog // ScholarsArchive@OSU

Spatial and temporal characteristics of groundwater levels adjacent to beaver ponds in Oregon

Creator:: Sharps, Diana E.
Abstract:: This study was undertaken to evaluate the spatial and temporal characteristics of riparian groundwater tables adjacent to beaver ponds. The research was conducted in two parts; in the first portion a two-dimensional, finite-difference computer model was developed and utilized to simulate groundwater elevations through time in pond-adjacent aquifers. Two types...
Resource Type:: Masters Thesis

Fine organic debris and dissolved oxygen in streamed gravels in the Oregon Coast Range

Creator:: Skaugset, Arne E.
Abstract:: Intragravel organic loading and intragravel dissolved oxygen were studied to determine the relationship between timber harvesting adjacent to first-, second-, and third-order streams and intragravel water quality. Twenty watersheds in the central Coast Range of western Oregon were studied of which five were undisturbed, nine were partially harvested, and six...
Resource Type:: Masters Thesis

Recruitment trends and physical characteristics of course woody debris in Oregon Coast Range streams

Creator:: Heimann, David C.
Abstract:: This study investigated the long-term consequences of timber stand removal on the recruitment, physical characteristics, and spatial distribution of coarse woody debris in small (second- and third-order) streams of the Oregon Coast Range. A chronosequence of stream-stand systems, ranging from 21- to 140-years since disturbance (YSD), were sampled to determine...
Resource Type:: Masters Thesis

Recruitment and abundance of large woody debris in an Oregon coastal stream system

Creator:: Long, Barry A.
Abstract:: Research was conducted in the Oregon Coast Range to address the concern that conversion of large diameter old-growth forests to small diameter second-growth forests would lead to reduction of large woody debris in adjacent stream channels. The objective of the study was to quantify spatial trends in large woody debris...
Resource Type:: Masters Thesis

Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

Creator:: Risso, Derek A.
Abstract:: Riparian areas in the arid western United States are critical ecosystems that have been severely degraded by a variety of land and water uses over the last 100 years. In this study, the composition and structure of floodplain vegetation along the Lower Owens River in eastern California was quantitatively described...
Resource Type:: Masters Thesis
Full Text:: . Boone Kauffman and my committee members Bruce Dugger and Bob Beschta. The financial and logistical

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Creator:: McHugh, Margaret H.
Abstract:: Timber management of coastal watersheds in southwest Oregon has been complicated by the need to protect anadromous fish habitat from accelerated stream sedimentation resulting from management activity. The rugged terrain of the Elk and Sixes River basins is underlain by the complex geological province of the Klamath Mountains, in which...
Resource Type:: Masters Thesis

Distribution and characteristics of an isolated population of coastal cutthroat trout (Oncorhynchus clarki) in streams of Triangle Lake Basin, Oregon

Creator:: Hurley, Steven M.
Abstract:: This research focused on features of a genetically isolated population of cutthroat trout (Oncorhynchus clarki) in the Triangle Lake basin of coastal Oregon. A falls at the outlet of Triangle Lake has blocked upstream migration of trout and anadromous salmonids into the basin. Cutthroat trout were found throughout the six...
Resource Type:: Masters Thesis
Full Text:: Committee Members Drs. Robert Beschta, Robert Jarvis, and Gordon Reeves greatly enhanced the final product

Hydraulic influences on pool morphology : a laboratory investigation

Creator:: Frizenschaf, Jacqueline
Abstract:: A flume study was conducted to investigate the influences of changing hydraulic conditions on the bed morphology of a scoured pool. During a simulated storm runoff event, responses of the pool were tested under different conditions: clearwater flow, sediment supply at steady rates, and two different sediment mixtures of the...
Resource Type:: Masters Thesis
Full Text:: examination committee members Dr. Robert L. Beschta and Dr. Jonathan D. Istok, who both helped me to further

Response of juvenile steelhead trout to an instream habitat rehabilitation project in Meadow Creek, Oregon

Creator:: Miller, Alan Christopher
Abstract:: Responses of juvenile steelhead trout to changes in stream habitat resulting from an instream habitat rehabilitation project in Meadow Creek, Oregon were measured from 1991 through 1992 and compared to pre-treatment data from 1987 through 1990. Sixty nine pool-forming, and 59 channel-stabilizing log structures were constructed by the U.S. Forest...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENTS I would like to thank my committee, Dr. Stanley Gregory, Dr. Gordon Reeves, Dr. Robert Beschta

Factors affecting the smolt yield of Coho salmon (Oncorhynchus kisutch) in three Oregon streams

Creator:: Knight, Ned J.
Abstract:: Data from the coho salmon migration were examined from three streams of the Alsea Watershed Study, conducted on tributaries to Drift Creek, Oregon, from 1959 through 1973. With the migration season defined as November 1 through May 31, the mean seasonal smolt count was 2022 fish in Deer Creek, 665...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Spatial and temporal characteristics of groundwater levels adjacent to beaver ponds in Oregon

Fine organic debris and dissolved oxygen in streamed gravels in the Oregon Coast Range

Recruitment trends and physical characteristics of course woody debris in Oregon Coast Range streams

Recruitment and abundance of large woody debris in an Oregon coastal stream system

Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

Landslide occurrence in the Elk and Sixes River basins, southwest Oregon

Distribution and characteristics of an isolated population of coastal cutthroat trout (Oncorhynchus clarki) in streams of Triangle Lake Basin, Oregon

Hydraulic influences on pool morphology : a laboratory investigation

Response of juvenile steelhead trout to an instream habitat rehabilitation project in Meadow Creek, Oregon

Factors affecting the smolt yield of Coho salmon (Oncorhynchus kisutch) in three Oregon streams

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