Index Catalog // ScholarsArchive@OSU

Ecology of underyearling summer steelhead trout in intermittent streams tributary to the Rogue River, Oregon

Creator:: Faudskar, John David
Resource Type:: Masters Thesis

Fish and invertebrate distribution at multiple scales in Thomas Creek, Oregon : a transition from conifer uplands to agricultural lowlands

Creator:: Langshaw, Russell B.
Abstract:: Longitudinal patterns of fish and benthic invertebrate distribution and habitat use were similar in Thomas Creek, Oregon but clarity of these patterns differed. I studied fish and aquatic invertebrates simultaneously, at multiple scales, and used multivariate statistical techniques to compare responses to the same environmental conditions. Both types of organisms...
Resource Type:: Masters Thesis
Full Text:: within segments. 48 3.5 Average invertebrate and fish richness (taxa or fish group per sample) by

Early post-restoration recovery of tidal wetland structure and function at the Southern Flow Corridor project, Tillamook Bay, Oregon

Creator:: Janousek, Christopher, Bailey, Scott, van de Wetering, Stan, Brophy, Laura, Bridgham, Scott, Schultz, Matthew, and Tice-Lewis, Maxwell
Abstract:: A substantial fraction of estuarine tidal wetlands have been lost to development or other human uses in the Pacific Northwest since the 1800s. Wetland restoration, typically through tidal re-connection, can restore normal tidal hydrology to these areas and improve estuarine capacity to support ecosystem functions and services. Restoration may initiate...
Resource Type:: Technical Report
Full Text:: for Applied Ecology. Prepared for Tillamook County, OR. Bullock A, Acreman M. 2003. The role of

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:: REPORTS The Tualatin River Basin in Washington County, Oregon, is a complex area with highly developed

Seasonal changes in distribution of coastal cutthroat trout in an isolated watershed

Creator:: Hendricks, Steve
Abstract:: In an effort to identify seasonal distribution patterns and habitat requirements of coastal cutthroat trout Oncorhynchus clarki clarki, movement of tagged and marked individuals (35 radio-tagged, 753 PIT-tagged, and 5,322 fin-clipped) was monitored over a 14-month period in an isolated watershed in southwestern Oregon. Emigration out of the basin was...
Resource Type:: Masters Thesis
Full Text:: cutthroat trout for hours on end. Special thanks to Charlie Wheeler and Scott Snadeker (Roseberg District

Double-crested Cormorants (Phalacrocorax auritus) and Brandt’s Cormorants (P. penicillatus) Breeding at East Sand Island in the Columbia River Estuary : Foraging Ecology, Colony Connectivity, and Overwinter Dispersal

Creator:: Peck-Richardson, Adam
Abstract:: Double-crested cormorants (Phalacrocorax auritus) and Brandt’s cormorants (P. penicillatus) nest sympatrically in a large mixed-species colony on East Sand Island (ESI) in the Columbia River estuary. Ecological theory predicts that such morphologically similar species will partition prey resources when faced with resource limitations. During the summer of 2014, I investigated...
Resource Type:: Masters Thesis
Full Text:: reduced or eliminated. Dispersal did not extend across the Cascade-Sierra Divide, however; greater

Ecological Effects of Tide Gate Upgrade or Removal: A Literature Review and Knowledge Synthesis - Final report

Creator:: Giannico, Guillermo, Souder, Jon, Tomaro, Londi, and Behan, Jeff
Abstract:: This document reports on findings, conclusions and recommendations derived from scientific literature and knowledge regarding the effectiveness of tide gate removal or upgrade in improving conditions for Oregon’s native migratory fish species, particularly salmonids, and other plant and animal species that utilize estuarine ecosystems. The project was commissioned by the...
Resource Type:: Technical Report
Full Text:: Ecological Effects of Tide Gate Upgrade or Removal: A

Stags of the Sea or Hedgehogs of the Harbor? Inferring the Point of Sculpin Cranial Weaponry

Creator:: Buser, Thaddaeus J.
Abstract:: Animal weapons are thought to have evolved to compete for reproductive opportunities within a species. Across the diverse weapon-bearing taxa, several evolutionary trends have emerged: (1) increasing complexity and relative size across ontogeny, (2) sexual dimorphism, and (3) higher levels of random deviations from symmetry (i.e., fluctuating asymmetry) than non-weaponized...
Resource Type:: Dissertation
Full Text:: Science presented on November 10, 2020. Title: Stags of the Sea or Hedgehogs of the Harbor? Inferring

Riverscape genetics of Oncorhynchus tshawytscha (Chinook salmon) in Siletz River, OR

Creator:: Davis, Chanté D.
Abstract:: Traditional analysis in population genetics evaluates differences among groups of individuals and, in some cases, considers the effects of distance or potential barriers to gene flow. However, many forces may shape genetic variation of organisms in riverine systems. Similarly complex research linking habitat heterogeneity and configuration to genetic structure has...
Resource Type:: Dissertation
Full Text:: salmon) in Siletz River, OR Abstract approved

A dwarfed population of Catostomus rimiculus (Catostomidae: Pisces) in Jenny Creek, Jackson County, Oregon

Creator:: Hohler, David Berry
Abstract:: The population of Catostomus rimiculus from Jenny Creek basin is identified as a dwarfed derivative of the normally much larger C. rimiculus from the Klamath and Rogue River systems. C. rimiculus in Jenny Creek basin are separated from those in the Klamath by a series of 3-10m waterfalls resulting from...
Resource Type:: Masters Thesis
Full Text:: POPULATION OF CATOSTOMUS RIMICULUS (CATOSTOMIDAE: PISCES) IN JENNY CREEK, JACKSON COUNTY, OREGON Abstract

ScholarsArchive@OSU

Ecology of underyearling summer steelhead trout in intermittent streams tributary to the Rogue River, Oregon

Fish and invertebrate distribution at multiple scales in Thomas Creek, Oregon : a transition from conifer uplands to agricultural lowlands

Early post-restoration recovery of tidal wetland structure and function at the Southern Flow Corridor project, Tillamook Bay, Oregon

Issues surrounding the Biota of the Tualatin River Basin

Seasonal changes in distribution of coastal cutthroat trout in an isolated watershed

Double-crested Cormorants (Phalacrocorax auritus) and Brandt’s Cormorants (P. penicillatus) Breeding at East Sand Island in the Columbia River Estuary : Foraging Ecology, Colony Connectivity, and Overwinter Dispersal

Ecological Effects of Tide Gate Upgrade or Removal: A Literature Review and Knowledge Synthesis - Final report

Stags of the Sea or Hedgehogs of the Harbor? Inferring the Point of Sculpin Cranial Weaponry

Riverscape genetics of Oncorhynchus tshawytscha (Chinook salmon) in Siletz River, OR

A dwarfed population of Catostomus rimiculus (Catostomidae: Pisces) in Jenny Creek, Jackson County, Oregon

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