Index Catalog // ScholarsArchive@OSU

IN MEMORIAM James R. Sedell (July 5, 1944 – August 18, 2012)

Creator:: Bisson, Pete, Reeves, Gordie, and Gregory, Stan
Resource Type:: Article
Full Text:: James R. Sedell (July 5, 1944 – August 18, 2012

A morphological and histological study of Kudoa spp. (Myxozoa, Myxosporea) in four Pacific marine fishes

Creator:: Anderson, James A. (James Allen), 1959-
Resource Type:: Masters Thesis
Full Text:: friend. Many other people extended invaluable assistance. Thanks are especially due to: James Seavers

The length of residence of juvenile Fall Chinook salmon in Sixes River, Oregon

Creator:: Reimers, Paul E.
Abstract:: This study was designed to provide life history information about juvenile fall Chinook salmon, Oncorhynchus tshawytscha (Walbaum), in a small coastal river by 1) documenting the length of residence of the juveniles throughout the river, 2) exploring several factors possibly influencing their length of residence, and 3) assessing the relative...
Resource Type:: Dissertation
Full Text:: Anderton for Paul Edward Reimers ACKNOWLEDGEMENTS Mr. R. E. Loeffel originally stimulated my interest

Implications of dietary lipid and carbohydrate intake on the liver and the susceptibility of hatchery-reared rainbow trout (Salmo gairdneri) to vibriosis

Creator:: Heres E., Allan A.
Abstract:: The hypotheses to be tested in this investigation are: 1) there is a threshold level of liver lipid and glycogen content above which the health condition of hatchery-reared fish is impaired, 2) fatty and high glycogen livers impair liver function and structure, and 3) fatty and high glycogen livers increase...
Resource Type:: Masters Thesis

Genetics of the Pacific oyster ; biological and economic implications

Creator:: Lannan, James E.
Abstract:: Variances among individuals within populations are influenced by environmental and genetic factors. Utilizing quantitative genetic theory, environmental and genetic components of variance have been compartmented for a variety of quantitative characters of the Pacific oyster, Crassostrea gigas. A significant genetic component of variance in a quantitative attribute related to reproductive...
Resource Type:: Dissertation

Classification and management of earthen aquaculture ponds, with emphasis on the role of the soil

Creator:: Bowman, James R.
Abstract:: Soil, water, and climatic classification systems are reviewed as background for the construction of a classification system for earthen aquaculture ponds. The physical and chemical properties of important soil types are also reviewed because of the critical role that the soil plays in earthen pond systems. A pond classification system...
Resource Type:: Dissertation
Full Text:: , with emphasis on the role of the soil AN ABSTRACT OF THE THESIS OF James R. Bowman for the degree of

An assessment of a closed greenhouse aquaculture and hydroponic system

Creator:: Head, William, 1946-
Resource Type:: Dissertation
Full Text:: Closed Greenhouse Aquaculture and ::::::::: /7 James E. Lannan Research was conducted to address three

Quantitative genetics of chum salmon, Oncorhynchus keta (Walbaum)

Creator:: Smoker, William Williams
Abstract:: Chum salmon from different stocks were bred together in two experiments. Three stocks contributed gametes to one experiment, two stocks to another. Sibling groups of eggs, alevins, and fry were maintained in a common environment. Variability of development rates, rearing performance, susceptibility to disease, and behavioral traits was partitioned into...
Resource Type:: Dissertation
Full Text:: Salmon, OncLallyn.chu2 keta (Walbaa Redactedforprivacy Abstract approved: James i\ Lannan Chum salmon

Evaluation of combining ability in mosquitofish

Creator:: Pongthana, Nuanmanee
Abstract:: Two replications of a half dial lei cross experiment were performed among four inbred lines of mosquitofish, Gambusia affinis. These inbred lines originated from three random-bred stocks: OR, TX and CD. The experiment was conducted as a completely randomized design. Experimental material consisted of parental lines and F₁ populations maintained...
Resource Type:: Masters Thesis
Full Text:: appreciation, I would particu- larly like to thank my major professor, Dr. James E. Lannan, whose guidance

Total and available nutrients in manures for pond aquaculture

Creator:: Nath, Shree S.
Abstract:: The total amount of nitrogen and phosphorus in animal manures, and the proportion of this amount that becomes available as dissolved inorganic nitrogen and phosphorus within a month after manures are added to water were examined in the context of fertilization guidelines for pond aquaculture. A literature study was conducted...
Resource Type:: Masters Thesis
Full Text:: Master of Science in Fisheries presented on Abstract approved: James E. Lannan The total amount of

Nile tilapia (Oreochromis niloticus) production in tropical microcosms fertilized with rabbit excreta

Creator:: Franco, Luis
Abstract:: This investigation explored the use of microcosms as a tool for studying the dynamics of tropical aquaculture ponds. The potential use of rabbit excreta as a pond fertilizer in integrated farming systems was also investigated. Twelve insulated fiber glass tanks were utilized as microcosms to simulate earthen ponds. Seven hand-sexed...
Resource Type:: Masters Thesis
Full Text:: Privacy Abstract approved by: James E. Lannan This investigation explored the use of microcosms as a

A mendelian study of Crassostrea gigas

Creator:: Smoker, Janet Van Dusen
Abstract:: The genotype frequencies of one-year-old oyster spat (Crassostrea gigas) from parents of known genotype, are compared to the frequencies expected with Mendelian inheritance. The genotypes are characterized at three enzyme loci, Aspartate amino-transferase (AAT), Phosphohexose isomerase (PHI) and Leucine aminopeptidase (LAP), and a general protein locus. In this study expression...
Resource Type:: Masters Thesis
Full Text:: Privacy James E. Lannan The genotype frequencies of one-year-old oyster spat (Crassostrea gigas) from

Broodstock management of the Pacific oyster Crassostrea gigas (Thunberg)

Creator:: Muranaka, Michael Shigeo
Resource Type:: Masters Thesis

A genetic fitness model for fisheries management

Creator:: Kapuscinski, Anne R.
Abstract:: See pdf.
Resource Type:: Dissertation

Generative grammars that simulate ecological systems

Creator:: Haefner, James W.
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES WELT HAEFNER for the degree

Rearing of channel catfish, Ictalurus punctatus (Rafinesque), and brown bullheads, I. nebulosus (Lesuer), in floating cages in a pond near Corvallis, Oregon

Creator:: Nielsen, James Robert
Abstract:: A study designed to evaluate the use of floating cages for rearing fingerling and subadult channel catfish (Ictalurus punctatus) and fingerling brown bullheads (I. nebulosus) on a commercial basis in Oregon's Willamette Valley was conducted at a pond seven miles north of Corvallis, Oregon, from May 23 to October 17,...
Resource Type:: Masters Thesis

Systematics and status of the family Catostomidae in Southern Oregon

Creator:: Andreasen, James Knude
Resource Type:: Dissertation

Pellet counts as a census and range-use technique for Columbia black-tailed deer

Creator:: Meehan, James Morgan
Abstract:: Rates of defecation of black-tailed deer in the Tillamook Burn of western Oregon were estimated using counts of groups of fecal pellets in 1959 and 1960. A 340-acre enclosure was divided into eight range types on the basis of depth of soil, aspect, and elevation. The estimated rates of defecation...
Resource Type:: Masters Thesis

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

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

Extrinsic and Intrinsic Factors Associated with Reproductive Success of Caspian Terns (Hydroprogne caspia) at East Sand Island, Columbia River Estuary

Creator:: Bailey, Olivia A.
Abstract:: Declines in wild salmonid (Oncorhynchus spp.) populations in the Columbia River basin have resulted in managers identifying that avian predation on juvenile salmonids is an important limiting factor for salmonid recovery. Caspian Terns (Hydroprogne caspia), particularly those nesting in the Columbia River estuary, were identified as key avian predators that...
Resource Type:: Masters Thesis
Full Text:: of results, and provided editorial comments for all chapters. Dr. Donald E. Lyons assisted with

Changes in size and age at maturity of Columbia River upriver bright fall chinook salmon (Oncorhynchus tshawytscha) : implications for stock fitness, commercial value, and management

Creator:: Beaty, Roy E.
Abstract:: The average size and age of chinook salmon (Oncorhynchus tshawytscha) caught in commercial fisheries along the Pacific Coast of North America have decreased substantially in this century. These declines might be caused in part by changes in size and age at maturity within the stocks contributing to those fisheries. Upriver...
Resource Type:: Masters Thesis
Full Text:: value, and management AN ABSTRACT OF THE THESIS OF Roy E. Beaty for the degree of Master of Science

Patterns of interactive segregation in three species of sculpins (Cottus) in western Oregon

Creator:: Finger, Terry Richard
Abstract:: Species interactions and their effect on the use of habitat by benthic fishes were examined in a guild composed of Cottus perplexus, C. rhotheus, and C. beldingi in the Marys River above Philomath, Oregon, and in a constant environment provided by an artificial stream. In the Marys River system, the...
Resource Type:: Dissertation
Full Text:: major professor and committee members, James D. Hall, Carl E. Bond, W. Scott Overton, and C. David

Carp, Climate, and Water Quality: Applying Systems Modeling to Ecosystem Recovery in Malheur Lake

Creator:: Pearson, James B.
Abstract:: Shallow lakes exist in either a clear or turbid state, with the clear state characterized by an abundance of aquatic macrophytes, diverse aquatic biota, low water column nutrients and phytoplankton biomass, whereas the turbid state is characterized by the opposite. These two distinct states are maintained by reinforcing (positive) feedback...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF James Pearson for

Where the Stream Meets the Road : Prioritizing Culvert Replacement for Fish Passage

Creator:: Reagan, Rachel E.
Abstract:: Streams across the world are highly fragmented due to the presence of in-stream barriers (e.g., dams and stream-road crossings), many of which restrict or block fish passage. Retrofitting or replacing these structures is a high priority for restoring habitat connectivity for native fishes and other aquatic organisms in the Pacific...
Resource Type:: Masters Thesis
Full Text:: ______________________________________________________ AN ABSTRACT OF THE THESIS OF Rachel E

In search of the optimum stocking density for chum salmon (Oncorhynchus keta) eggs in shallow matrix substrate incubators

Creator:: Kapuscinski, Anne R.
Abstract:: Within the tested range of 1000 - 7000 eyed eggs/ft² gravel substrate (1.08 - 7.53 eggs/cm²), the optimum stocking density for chum salmon (Oncorhynchus keta) eggs in shallow matrix substrate incubators occurred at 3000 - 4000 eggs/ft². Premature fry, which predominated early emergence, showed greater variability in lipid content than...
Resource Type:: Masters Thesis
Full Text:: Privacy ACKNOWLEDGEMENTS My sincere gratitude goes to my major professor and friend, Dr. James Lannan

Analysis of a ³²P material balance method for measuring periphyton production in flowing water

Creator:: Gregory, Stanley Vincent
Abstract:: The ³²P material balance method for measuring periphyton production and grazing rates on periphyton in streams developed by Elwood and Nelson (1972) was evaluated by laboratory and field experiments. Three basic assumptions of the method were examined: 1) sloughing of periphyton from substrates is negligible, 2) sorption of ³²P onto...
Resource Type:: Masters Thesis
Full Text:: PRODUCTION IN FLOWING WATER Abstract approved: Dr. James Eall) The 32P material balance method for

The winter distribution, movement, and smolt transformation of juvenile coho salmon in an Oregon coastal stream

Creator:: Rodgers, Jeffrey D.
Abstract:: The abundance of the 1982 brood of juvenile coho salmon (Oncorhynchus kisutch) was determined in August 1983, and January and April 1984 at 20 study sites spread throughout Knowles Creek, an Oregon coastal watershed. The timing of emigration of juvenile coho from the watershed was monitored from October 1983 through...
Resource Type:: Masters Thesis
Full Text:: Abstract approv Redacted for Privacy Dr. James all The abundance of the 1982 brood of juvenile coho salmon

Handling and remote setting techniques for Pacific oyster larvae Crassostrea gigas

Creator:: Henderson, Bruce Alan
Resource Type:: Masters Thesis

Combining Disparate Data Sources with Ecosystem and Integrated Models: Case Studies for Improving Management of Protected Species

Creator:: Chasco, Brandon E.
Abstract:: Globally, the number of threatened species is increasing and conserving them is a high priority to the scientific community. Assessing the status of these protected species is challenging due to missing, contested, and or contradictory data streams. Integrated models (IMs) provide a statistical framework for combining disparate data sources to...
Resource Type:: Dissertation
Full Text:: we’re going camping. CONTRIBUTION OF AUTHORS For Chapter 1, James T. Thorson and Eric J. Ward

Using Spatial Capture-Recapture to Estimate Density of Roosevelt Elk in Western Oregon

Creator:: Nelson, Jennifer E.
Abstract:: Spatial capture-recapture (SCR) is employed for estimating abundance and density of species, particularly those that are cryptic or solitary, and evaluating how population density varies with habitat. However, it is uncertain whether estimates are biased when applied to species that aggregate, such as elk (Cervus canadensis). Wildlife managers in the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Jennifer E. Nelson for

Influence of temperature and salinity on the adaptation of Anoplarchus purpurescens and Pholis ornata to an intertidal habitat

Creator:: Barton, Michael Glenn
Resource Type:: Dissertation
Full Text:: Caidwell, Jefferson Gonor, and James Harper for their advice and assistance. Dr. Caidwell kindly made

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:: Dispersal Abstract approved: Daniel D. Roby Donald E. Lyons Double-crested

Epidermal tumors on juvenile English sole (Parophrys vetulus) from Yaquina Bay, Oregon

Creator:: Koike, Bruce Gary
Abstract:: Juvenile English sole (Parophrys vetulus) were collected in Yaquina Bay, Oregon from January, 1986 to March, 1987. Recruitment of young-of-the-year sole occurred from January to June, 1986 and again from December, 1986 to February, 1987. Emigration from Yaquina Bay started in September, 1986, but a small portion of the English...
Resource Type:: Masters Thesis
Full Text:: SOLE (PAROPHRYS VETULUS) FROM YAQUINA BAY, OREGON Abstract approved: > Dr. Robert E. "t51son

Classification of Icelandic watersheds and rivers to explain life history strategies of Atlantic salmon

Creator:: Gudjonsson, Sigurdur
Abstract:: A hierarchical classification system of Iceland's watersheds and rivers is presented. The classification is based on Iceland's substrate, climate, water, biota, and human cultural influences. The geological formations of Iceland are very different in character depending on their age and formation history. Three major types of formations occur: Tertiary, Plio-Pleistocene,...
Resource Type:: Dissertation
Full Text:: Abstract approved: 4 Redacted for Privacy Charles E. Warren A hierarchical classification system of

Body Condition and Hormone Assessment of Eastern North Pacific Gray Whales (Eschrichtius robustus) and Associations with Ambient Noise

Creator:: Lemos, Leila S.
Abstract:: Anthropogenic activities have posed many threats to the oceans and marine life. Understanding how individuals are affected and physiologically respond to these threats is crucial and allows for management and conservation applications. I evaluated the overall health condition of a subpopulation of gray whales (Eschrichtius robustus) along the Oregon coast,...
Resource Type:: Dissertation
Full Text:: . Thank you to my graduate committee members, Dr. Kathleen Hunt, Dr. Joe Haxel, Dr. James Sumich, Dr

Some morphological and biochemical changes in steelhead trout during the parr-smolt transformation

Creator:: Fessler, James Lawrence
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES LAWRENCE FESSLER for the

The Influence of Scale in a Structured Decision Making Framework for Chinook Salmon Management

Creator:: McDonnell, Kevin N.
Abstract:: The goal of my dissertation was to explore how scale influences stream restoration prioritization strategies for an anadromous species and identify influential uncertainties that exist at different scales. My objectives were to (1) produce a comprehensive review of the Chinook salmon management challenges in California’s Central Valley and identify the...
Resource Type:: Dissertation
Full Text:: . Abstract approved: ______________________________________________________ James T. Peterson The

Movements of spawning sockeye salmon in Hidden Creek, Brooks Lake, Alaska

Creator:: Tsunoda, Setsuwo
Abstract:: The movements of a population of adult sockeye salmon (Oncorhynchus nerka) were followed in a small tributary of Brooks Lake, Alaska until spawning was nearly complete in 1963. The objectives of the study were to describe the movements of sockeye salmon on the spawning ground of an entire small stream,...
Resource Type:: Masters Thesis
Full Text:: for making this study realizable and to Dr. James D. Hall for his counsel during the preparation

The association and distribution of fish species in Nyanza Gulf, Lake Victoria, East Africa, 1975

Creator:: Wanjala, Benny
Abstract:: A trawling survey was conducted on Nyanza Gulf, Lake Victoria, East Africa during March-December 1975 to investigate association and distribution of the major fish species and to provide information for management of the fishery. A total of 139 sites was sampled and all fishes caught were counted, measured, and weighed....
Resource Type:: Masters Thesis
Full Text:: °13'E to 34°52'E) is a bay on the eastern side of Lake Victoria at an altitude of 1,134 m above sea

Rare, endangered, and recently extirpated mammals in Oregon

Creator:: Olterman, James Howard
Abstract:: This paper lists, and gives individual accounts of, those Oregon mammals that at some time have been referred to as being of a status other than common. Although rare and endangered wildlife species were listed on a national level in the United States, the large areas of land included in...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES HOWARD OLTERMAN for the

Biochemical and serological comparison of selected Vibrio spp. isolated from fish

Creator:: Pipoppinyo, Somsak
Abstract:: Nine isolates of bacteria recovered from fish dying at marine facilities were collected from different geographic areas. The strains included: an isolate from chinook salmon (Oncorhynchus tshawytscha) reared in net pens in New Zealand, an isolate from chum salmon (Oncorhynchus keta) held at a laboratory in Oregon, USA., and seven...
Resource Type:: Masters Thesis
Full Text:: ]) SEROLOGICAL COMPARISON OF SELECTED VIBRIO SPP. ISOLATED FROM FISH Abstract approved: I Dr. James R. Winton

Effects of light, nutrients, and grazing on periphyton communities in streams

Creator:: Gregory, Stanley Vincent
Abstract:: Relative effects of light, nutrients, and grazing on primary production were investigated in streams in the Cascade Mountains of Oregon and in laboratory streams. Relative magnitudes of primary production and associated processes were examined for one year in a stream that flowed through a clearcut and an old-growth forest in...
Resource Type:: Dissertation
Full Text:: LIGHT, NUTRIENTS, AND GRAZERS ON PERIPHYTON COMMUNITIES IN STREAMS Abstract Approved: James D:' all

Predator assemblages in old-growth and logged sections of small Cascade streams

Creator:: Murphy, Michael Louis
Resource Type:: Masters Thesis
Full Text:: people I wish to thank especially Dr. James D. Hall, my major professor, for guiding me throughout the

A morphometric study of growth and condition in juvenile English sole (Pleuronectes vetulus) relative to environment

Creator:: Weber, Madeleine Demaries
Abstract:: This thesis focuses upon whether stressful aspects of an organism's environment are reflected by that organism's shape. It presents an application of the powerful thin-plate spline and relative warp methods from morphometric analysis to demonstrate the overall utility of morphometrics in detecting environmental stress in an estuarine flatfish, the English...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: James H. Power This thesis focuses upon whether stressful aspects of an organism's

Metamorphosis, growth, and settlement of Pacific sanddab (Citharichthys sordidus) to a continental shelf nursery, inferred from otolith microstructure

Creator:: Donohoe, Christopher James
Abstract:: Processes of metamorphosis, settlement, and growth were examined in Pacific sanddab using field studies and otolith microstructure. This flatfish transforms at large sizes, has a gradual metamorphosis, and settles to a nursery on the middle continental shelf. Eye migration takes 3 months and "metamorphosis proper" which begins after completion of...
Resource Type:: Dissertation
Full Text:: ) ........................................................................................................................ 18 2.4. Development of larval (a-c) and juvenile (d-e) pigmentation in Pacific sanddab

Development of a Structured Adaptive Approach to Klamath Basin Sucker Recovery Planning

Creator:: Barajas, Miguel F.
Abstract:: Listed as endangered in 1988, the Lost River sucker (Deltistes luxatus) and Shortnose sucker (Chasmistes brevirostris) were once abundant and widely distributed in the Klamath Basin in Southern Oregon and Northern California. Populations of both species have been declining since the late 1960’s. Factors thought responsible for declines include naturally...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ James T. Peterson Listed as endangered in 1988, the Lost River sucker (Deltistes

The parr-smolt metamorphosis in steelhead trout as affected by photoperiod and temperature

Creator:: Wagner, Harry Henry
Abstract:: See pdf.
Resource Type:: Dissertation
Full Text:: and thanks for their con- tributions: J. L. Fessler, F. E. Wieman, P. M. Iwanga, D. A. Williams, R

A population study of the cutthroat trout in an unshaded and shaded section of a stream

Creator:: Aho, Richard Stanley
Resource Type:: Masters Thesis
Full Text:: CUTTHROAT TROUT IN AN UNSHADED AND SHADED SECTION OF STR Abstract approved: Jame D. H A study of the

Patch dynamics of desert fishes in the arid wetlands of western Utah

Creator:: Sáenz, Jessica
Abstract:: The conservation of declining desert fish species requires the identification of relations between fish population dynamics and their environments. Dynamic occupancy modeling, an approach that requires less information than traditional mark-recapture studies, may help identify important factors affecting population processes and aid desert fish conservation and restoration efforts. I used...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ James T. Peterson The conservation of declining desert fish species requires the

Influence of channel constraint on primary production, preiphyton biomass, and macroinvertebrate biomass in streams of the Oregon Coast Range

Creator:: Zucker, Steven J.
Abstract:: Differences in primary production and periphyton and macroinvertebrate biomass between pairs of constrained (valley floor width of less than twice the active channel width) and unconstrained reaches were investigated in Elk River and four tributaries in southwest Oregon. In August 1991, macroinvertebrates were sampled from individual cobbles, and rocks were...
Resource Type:: Masters Thesis
Full Text:: 12 Direct Solar Radiation (ifjoules/m2/ S u mm e r Day) Figure 16. Relationship between scraper

Social interaction between juvenile coho and fall chinook salmon in Sixes River, Oregon

Creator:: Stein, Roy A.
Abstract:: The nature of the interaction between juvenile coho salmon, Oncorhynchus kisutch (Walbaum), and fall chinook salmon, 0. tshawytscha (Walbaum), was studied in Sixes River, Oregon. Seining, snorkeling, and tagging were used to determine distribution and patterns of growth of these two species in the stream environment. Experiments conducted in flowing-water...
Resource Type:: Masters Thesis
Full Text:: approved: James D. Hall The nature of mteraction between juvenile coho salmon, Oncorhynchus kisutch

Effects of logging on the spawning bed environment in two Oregon coastal streams

Creator:: Ringler, Neil Harrison
Abstract:: The effects of two patterns of logging on the intragravel environment were studied in three Oregon coastal streams between June 1968 and June 1969. The watershed of one stream (Needle Branch) had been clearcut, and that of a second stream (Deer Creek) cut in staggered settings in 1966. A third...
Resource Type:: Masters Thesis
Full Text:: June 1970 APPROVED: As ociate Professor of Fisheries in charge of major . e a d of Department of

Towards an Integrated Decision Tool for Managing Wildlife with Visitor Restrictions in Glacier Bay National Park

Creator:: Whitlock, Steven L.
Abstract:: The National Park Service has a dual mission of providing public access to exceptional natural resources, but in a manner such that these resources are left “unimpaired for the enjoyment of future generations.” Human activities in parks undoubtedly affect wildlife, but the degree to which such activities cause impairment is...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ James T. Peterson The National Park Service has a dual mission of providing public access

Biology of juvenile sockeye salmon resident in Chignik River, Alaska

Creator:: Iverson, Ronald Albert
Abstract:: The life history of juvenile sockeye salmon (Oncorhynchus nerka) resident in Chignik River, Alaska, represents a departure from the lacustrine, pelagic existence typical of juveniles of this species. For this reason, the distribution, relative abundance in different parts of the river, growth, and upstream and downstream movements of juvenile sockeye...
Resource Type:: Masters Thesis
Full Text:: am grateful to Dr. James D. Hall for his guidance in this investigation and in the preparation of

Breeding ecology and nest site selection of Kittlitz's murrelets on Kodiak Island, Alaska

Creator:: Lawonn, Matthew James
Abstract:: The Kittlitz's murrelet (Brachyramphus brevirostris) is a rare member of the seabird family Alcidae that breeds in coastal areas of Alaska and Beringian Russia. The species belongs to the genus Brachyramphus, an unusual seabird taxon in which all three extant species nest non-colonially, situating their nests up to 75 km...
Resource Type:: Masters Thesis
Full Text:: James Lawonn for the degree of Master of Science in Wildlife Science presented on December 14, 2012

A population study of the rainbow trout (Salmo gairdneri) in a Central Oregon stream

Creator:: Osborn, Charles Edwin
Abstract:: The rainbow trout population in Elder Creek, Oregon was studied between June 1965 and November 1966. The physical characteristics of the stream during the summer season were described. Rainbow trout were captured in each of three sections on the stream by electrofishing and were tagged and measured. Population size, mortality,...
Resource Type:: Masters Thesis
Full Text:: : / James D. Hall The rainbow trout population in Elder Creek, Oregon was studied between June 1965 and

The impacts of logjam removal on fish populations and stream habitat in Western Oregon

Creator:: Baker, Calvin Orville
Resource Type:: Masters Thesis
Full Text:: . James D. Hall, my major professor, who allowed me the freedom to pursue my own interests and make my

An evaluation of the effectiveness of instream structures for steelhead trout rearing habitat in the Steamboat Creek basin.

Creator:: Fontaine, Barbara L.
Abstract:: Several types of instream structures were evaluated for their potential to provide rearing habitat and to increase reach carrying capacity for steelhead trout (Salmo gairdneri). Evaluation was conducted in each season over the course of 1 year. Blast pools created in bedrock glides increased the carrying capacity of stream reaches...
Resource Type:: Masters Thesis
Full Text:: . Abstract Appried James D. Hall Several types of instreaxn structures were evaluated for their potential

Productivity, survival, and population status of river otter in western Oregon

Creator:: Tabor, James Eldon
Resource Type:: Masters Thesis
Full Text:: in AN ABSTRACT OF THE THESIS OF JAMES ELDON TAB OR (Name

The influence of geology and timber harvest on channel morphology and salmonid populations in Oregon coast range streams

Creator:: Hicks, Brendan J.
Resource Type:: Dissertation
Full Text:: Coast Range Streams Abstract approv James D. Hall Geology influences mainstem channel morphology in

Daily activity patterns, survival, and movements of red tree voles (Arborimus longicaudus) in western Oregon

Creator:: Swingle, James Kerr
Abstract:: We radiocollared a sample of 61 red tree voles in Douglas County, Oregon and monitored their movements to determine daily, seasonal, and sexual differences in behavior and home range attributes. We also collected information on nest attributes, survival, and dispersal of the radiocollared voles. Individual voles were monitored for periods...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: AN ABSTRACT OF THE THESIS OF James Kerr

Evaluating the Effects of a Parasitic Copepod (Salmincola californiensis) on the Performance of Juvenile Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Neal, William T.
Abstract:: Pacific salmon (Oncorhynchus spp.) rearing in lakes and reservoirs have been known to become heavily infected with an ectoparasitic copepod (Salmincola californiensis). Little is known about the factors that affect the parasite infection prevalence and intensity. However, previous research suggests that the parasite may negatively affect the fitness and survival...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ James T. Peterson Pacific salmon (Oncorhynchus spp.) rearing in lakes and reservoirs

Streamside forests, channel constraint, large woody debris characteristics, and pool morphology in low order streams, Blue Mountains, Oregon

Creator:: Cordova, Jerry J.
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Dr. James R. Sedell Currently evolving concepts of linkages between terrestrial and

Characteristics of pools used by adult summer steelhead (Oncorhynchus mykiss) in the Steamboat Creek Basin, North Umpqua River, Oregon

Creator:: Baigun, Claudio Rafael Mariano
Abstract:: This study examined features of deep pool (>0.8 m mean depth) used by adult summer steelhead in Steamboat Creek (1991-1992). Steamboat Creek had a heterogenous thermal profile, with some segments exceeding preferred temperature of steelhead. Deep pools were scarce (4% of the total habitat units) and 39% of them were...
Resource Type:: Masters Thesis
Full Text:: . North Umpgua River, Oregon. Abstract approved: James R. Sedeil This study examined features of deep

Racial identification of chinook salmon (Oncorhynchus tshawytscha) and juvenile steelhead trout (Salmo gairdneri)

Creator:: Martin, James T.
Abstract:: Efforts to manage stocks of salmonids in Pacific Northwest stream systems are complicated by the occurrence of several runs of a species thought to represent races rearing sympatrically as juveniles. In order to collect the population statistics needed to properly manage these stocks, managers need a method of identifying juvenile...
Resource Type:: Masters Thesis
Full Text:: icr)E Typed by Jan Ehmke for James Thomas Martin Redacted for Privacy Redacted for Privacy

Habitat factors affecting pronghorn use of playas in south central Oregon

Creator:: Good, James Ronald
Abstract:: Pronghorn (Antilocapra americana) use of four playas (intermittent lakebeds) on Hart Mountain National Antelope Refuge (NAR) in south central Oregon was studied during the summers of 1974 and 1975. Percent canopy cover of playa vegetation, plant phenology, percent desiccated vegetation, soil moisture, available surface water and pronghorn use of range...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES RONALD GOOD for the degree

Influences of kraft mill effluents on the production of chinook salmon in laboratory stream communities

Creator:: Lichatowich, James August
Abstract:: A study of the effects of stabilized and unstabilized kraft mill effluents on the production of chinook salmon (Oncorhynchus tshawytscha) in six laboratory streams was conducted at the Pacific Cooperative Water Pollution Laboratories, Oregon State University-from May through August, 1969. Similar salmon biomasses were stocked in each stream. Changes in...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES AUGUST LICHATOWICH for the

Plumage development and growth of young whooping cranes

Creator:: Stephenson, James Dale
Abstract:: Plumage development and growth were studied in young whooping cranes (Grus americana) from hatching until 450 days of age. The downy stage of the young cranes lasted about six weeks; the development of the juvenal plumage took until 100 days of age, and the molt to the adult or all...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES DALE STEPHENSON for the MASTER OF SCIENCE (Name) (Degree) in

The Eco-hydrology of Tropical Peatlands Associated with Land Cover Changes

Creator:: Kurnianto, Sofyan
Abstract:: Tropical peatlands play an important role in global climate system by storing an immense of carbon that had been accumulated over thousands of years. Peatlands provide another important ecosystem service by regulating the hydrology. It is believed that peatlands act like a giant sponge by absorbing substantial amounts of water...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ James T. Peterson Tropical peatlands play an important role in global climate system

Fatty acids of exercised and non-exercised salmon

Creator:: Saddler, James Bryan
Abstract:: The fatty acids of coho salmon were identified and then a study was conducted to determine the effects of exercise on the fatty acids of salmon forced to swim against water velocities of 52, 54, 56, and 59 cm/sec, The shorter and lighter salmon were less competent at a given...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE THESIS OF James Bryan Saddler (Name) in Fisheries (Major) for the PH. D

Scale patterns indicate changes in use of rearing habitat by juvenile coho salmon, Oncorhynchus kisutch, from 1955 to 1984 in the Tenmile Lakes, Oregon

Creator:: Gunnarsdottir, Hugrun
Abstract:: This study was designed to provide information about the juvenile life history of coho salmon, Oncorhynchus kisutch, in the Tenmile Lakes in Oregon by 1) classifying scales of spawning fish and outgoing smolts (1+), 2) assessing the contribution of juvenile life history types to the returns of adults (3₂) and...
Resource Type:: Masters Thesis
Full Text:: appro Redacted for Privacy James D. Hall This stu y was designed to provide information about the

Trophically transmitted parasites as ecosystem indicators : relationships among parasite community structure, juvenile salmon diet composition, and ocean conditions

Creator:: Losee, James P.
Abstract:: Recent research conducted throughout the Northern California Current (NCC) on the ecology of Pacific salmon (Oncorhynchus spp.) indicates that variable ocean conditions affect the community composition of zooplankton in the nearshore environment which, in turn, can affect the quality of prey for fish, sea birds and mammals. Interannual variability in...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF James P. Losee for the degree of Master of Science in Fisheries Science

An evaluation of attempts to reestablish the sea otter in Oregon

Creator:: Jameson, Ronald James
Abstract:: During the summers of 1970 and 1971 a total of 95 sea otter (Enhydra lutris) were shipped to Oregon from Amchitka Island, Alaska. The 1970 shipment consisted of 31 otter which were to be released on the southern Oregon Coast near the town of Port Orford. Two of these animals...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF RONALD JAMES JAMESON for the degree

Cryo-preservation of viable fish sperm

Creator:: Graybill, James Roger
Abstract:: Fishery researchers have attempted to preserve viable fish sperm for extended periods of time. Only limited success has been achieved with storage of spermatozoa from salmonids. The principal accomplishments of this investigation during the fiscal year 1966-1967 were the development of standard methods for the collection and evaluation of fish...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF JAMES ROGER GRAYBILL (Name of

Influence of habitat characteristics on Greater sage-grouse reproductive success in the Montana Mountains, Nevada

Creator:: Rebholz, James L.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) populations have declined across their geographic range during the last century. They were once widespread throughout the Intermountain West, but lower annual productivity, likely caused by degradation and loss of suitable habitat, has greatly reduced their distribution and population densities. Habitat used for reproduction has been...
Resource Type:: Masters Thesis
Full Text:: Model AN ABSTRACT OF THE THESIS OF James L. Rebholz

Distribution of Pacific herring spawn in Yaquina Bay, Oregon, and observations on mortality through hatching

Creator:: Steinfeld, James David
Abstract:: Studies were conducted during late winter and spring of 1970 to establish the extent of spawning of Pacific herring (Clupea harengus pallasi Valenciennes) in the Yaquina estuary, and to define the degree of egg mortality on certain substrates. Routine surveillance of the north shore of the estuary provided information on...
Resource Type:: Masters Thesis
Full Text:: , Oregon, and observations on mortality through hatching AN ABSTRACT OF THE THESIS OF JAMES DAVID

Salmon, Saws, and Sense of Place: Using a Discrete Choice Experiment to Examine Place Relationships and Preferences for Stream Restoration on the Quinault Indian Reservation

Creator:: Robinson, Kerrick W.
Abstract:: The social sciences have the capacity to contribute to natural resource management through investigations of human dynamics associated with the environment. Sense of place (SOP), the formed relationships between an individual and the environment, has been considered a fundamental aspect of human well-being and can contribute to more holistic understanding...
Resource Type:: Masters Thesis
Full Text:: right direction, and was a fantastic mentor. Justine James made the project possible and provided

Taxonomy and systematic relationships of tui chubs (Siphateles: Cyprinidae) from Oregon's Great Basin

Creator:: Remple, Stacy L.
Abstract:: There are three recognized species of Siphateles from the Great Basin; S. alvordensis, S. boraxobius and the tui chub, S. bicolor. One species, S. boraxobius, is endangered and one population of tui chub at Hutton Spring is threatened. Despite several morphological and molecular studies, the taxonomy and relationships of tui...
Resource Type:: Masters Thesis

Physiological and pharmacological investigation of the vascularized and nonvascularized teleost heart with adrenergic, cholinergic and coronary dilating agents

Creator:: Stuart, Robert Edward
Resource Type:: Masters Thesis
Full Text:: . I would also like to thank the members of my committee, Dr. James L. Hedtke, Dr. John R. Smith, Dr

The relative contribution of climate to changes in lesser prairie-chicken abundance

Creator:: Ross, Beth E., Haukos, David, Hagen, Christian, and Pitman, James
Abstract:: Managing for species using current weather patterns fails to incorporate the uncertainty associated with future climatic conditions; without incorporating potential changes in climate into conservation strategies, management and conservation efforts may fall short or waste valuable resources. Understanding the effects of climate change on species in the Great Plains of...
Resource Type:: Article

Fine scale foraging behavior of gray whales in relation to prey fields and vessel disturbance along the Oregon Coast

Creator:: Sullivan, Florence A.
Abstract:: The desire to understand the spatial and temporal drivers of animal behavior and distribution relative to scale is central to movement ecology. Optimal foraging theory states that a predator should continue exploiting a patch until it is no longer profitable to do so. As human developments increasingly encroach on the...
Resource Type:: Masters Thesis
Full Text:: ). 13 Pirotta E, Merchant ND, Thompson PM, Barton TR, Lusseau D. 2015. Quantifying the effect of boat

Beyond the Benthos: The effects of stream restoration on habitat complexity and aquatic and riparian macroinvertebrate assemblages

Creator:: Lotz, Kelsey L.
Abstract:: Aquatic and riparian systems in the western United States have been highly modified by anthropogenic impacts since Euro-American settlement. Ecological restoration is a practice that has been widely conducted around the world to mitigate the degradation of these systems. The majority of stream restoration efforts have focused on improving in-stream...
Resource Type:: Masters Thesis
Full Text:: Assemblages. Abstract approved: _____________________________________________________ David E. Wooster

Potential barriers to movements and habitat selection of pygmy rabbits (Brachylagus idahoensis) after experimental translocation

Creator:: Lawes, Timothy J. (Timothy James)
Abstract:: I assessed potential barriers to dispersal using homing tendency and investigated the movements and settlement site selection of pygmy rabbits (Brachylagus idahoensis) after short distance translocations in southeastern Oregon from June – December 2008. I captured, radio marked, and translocated 59 pygmy rabbits 1-2 km across landscapes with (1) continuous...
Resource Type:: Masters Thesis
Full Text:: Crawford, Karen Fischer, Betsy Glenn, Jason Schilling, Donald Lyons, Emily Straus, and James Lee

Age determination of corvina reina (Cynoscion albus) in the Gulf of Nicoya, based on otolith surface readings and microincrement analysis

Creator:: Mug-Villanueva, Moises
Abstract:: The corvina reina (Cynoscion albus) is an important part of the artisanal fishery in the Gulf of Nicoya, Costa Rica. Stock assessment on this sciaenid species has been restricted to the use of length-based methods because of the lack of age data. Direct age determination methodologies for tropical species often...
Resource Type:: Masters Thesis
Full Text:: : Vincent F. Gallucci (Thesis Professor) Redacted for Privacy James D. Hall (Major Professor) The corvina

Comparing Migratory Patterns and Survival Between Wild and Wild Fish Surrogate Juvenile Spring Chinook Salmon (Oncorhynchus tshawytscha)

Creator:: Pollock, Amanda M. M.
Abstract:: Anadromous salmonid populations in the Pacific Northwest have declined over the past 150 years. In 1999, wild spring Chinook salmon (Oncorhynchus tshawytscha) were federally listed as threatened within the Willamette Basin, OR. Currently, practices to restore wild populations in the upper Willamette Basin involve trapping wild adults at the base...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________ David L.G. Noakes James T. Peterson Anadromous salmonid populations in the Pacific

Value of Prior and Novel Information in Managing a Mixed-Stock Recreational Chinook Salmon Fishery

Creator:: Jensen, Alexander J.
Abstract:: Many economically important Pacific salmon fisheries along the west coast of North America are mixed-stock, recreational systems, in which managers strive to account for interactions between fish, anglers, and management policy while balancing fishery access against conservation of vulnerable stocks. Specific challenges facing fisheries managers include limited control over angling...
Resource Type:: Dissertation
Full Text:: Fishery. Abstract approved: ______________________________________________________ James T

Intra‐ and inter‐annual variation in gray whale body condition on a foraging ground

Creator:: Soledade Lemos, Leila, Burnett, Jonathan D., Chandler, Todd E., Sumich, James L., and Torres, Leigh G.
Abstract:: Baleen whales store energy gained on foraging grounds to support reproduction and other metabolic needs while fasting for long periods during migration. Whale body condition can be used to monitor foraging success, and thus better understand and anticipate individual‐ and population‐level trends in reproduction and survival. We assessed the body...
Resource Type:: Article
Full Text:: foraging ground LEILA SOLEDADE LEMOS ,1,� JONATHAN D. BURNETT ,2 TODD E. CHANDLER,1 JAMES L. SUMICH ,3

Carbon Dynamics in Response to Land Cover Change in Tropical Peatlands, Kalimantan, Indonesia

Creator:: Basuki, Imam
Abstract:: This study focuses in providing the knowledge on carbon (C) stocks, emission and ecosystem productivity related to land use/land cover change in tropical peatlands. The field research activities were conducted for about 17 months between August 2013 to December 2015, at Pematang Gadung peat dome (peat depth up to 10.5...
Resource Type:: Dissertation
Full Text:: were net carbon sources; they have negative mean NEP values (-0.1 Mg CO2-e ha -1 yr-1 and -25.1 Mg

Comparative foraging ecology of five species of Pacific seabirds : multi-scale analyses of marine habitat use

Creator:: Suryan, Robert
Abstract:: Seabirds are an integral component of marine ecosystems, however, because humans typically observe only snapshots of their lives at sea, our understanding of seabird foraging ecology is often limited. A more complete understanding of the ecological roles of seabirds and identification of critical foraging habitats requires the ability to follow...
Resource Type:: Dissertation
Full Text:: Oyashio Current regions (ca. 30 – 50˚ N latitude, 137 – 176o E longitude) during post-breeding season

Movement Patterns of Rockfishes at the Redfish Rocks Marine Reserve, Oregon

Creator:: Calvanese, Thomas P.
Abstract:: The effects of Marine protected areas (MPAs) on adult fish populations depend on the degree of protection provided, which is partly a function of MPA size and the spatial extent of fish movements. The Redfish Rocks Marine Reserve (RRMR) and MPA, located on the south coast of Oregon near Port...
Resource Type:: Masters Thesis
Full Text:: Hixon, Dr. James Peterson, and Dr. Bruce Menge, for encouragement, support, and valuable feedback

Influence of geomorphology and land use on distribution and abundance of salmonids in a coastal Oregon basin

Creator:: Schwartz, John Steven
Resource Type:: Masters Thesis
Full Text:: project. Thanks are due to Dr. Bob Beschta, Dr. James Hall, and Dr. David Hann for serving on my graduate

The effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies

Creator:: Miller, Scott W.
Abstract:: I used current water management practices in central and eastern Oregon and Washington as natural experiments to quantify the effects of irrigation water withdrawals on macroinvertebrate community structure and life history strategies. Reduced discharge had direct (e.g. decreased velocity and wetted habitat) and indirect (e.g. increased conductivity and temperature) effects...
Resource Type:: Dissertation

Trophic adaptations and relationships of rockfishes (Sebastes spp.) of Oregon

Creator:: Pequeño, Germán E.
Abstract:: A comparative analysis of structures related to capture and processing of food, in 624 specimens belonging to 31 species of Sebastes of Oregon was made. The structures studied were the following: the tooth-bearing bones (premaxillary, dentary, vomer, palatine); the maxillary, angular, articular, parasphenoid and glossohyal bones; the lower limb of...
Resource Type:: Dissertation
Full Text:: (Sebastes spp.) of Oregon AN ABSTRACT OF THE THESIS OE 1.:,ermfira E. for the degree of Doctor in Fsher

Genetic differentiation of resident and anadromous rainbow trout (Salmo gairdneri) in the Deschutes River basin, Oregon

Creator:: Currens, Kenneth P.
Resource Type:: Masters Thesis
Full Text:: the support of my graduate committee: Dr. Carl Schreck, Dr. Hiram Li, Dr. James Lannan, Dr. John

Patterns of genetic inheritance and variation through ontogeny for hatchery and wild stocks of Chinook salmon

Creator:: Hulett, Patrick L.
Abstract:: Although differences between selective pressures in hatcheries and streams have been theorized to cause genetic divergence between hatchery and wild salmonids, evidence of this is lacking. This study was initiated to document the presence or absence of genetic change in hatchery and wild stocks by characterizing genetic traits in fish...
Resource Type:: Masters Thesis
Full Text:: also to the other members of my graduate committee, Dr. James Lannan, Dr. Paul Reno and Dr. Kenneth

Range-use estimation and encounter probability for juvenile Steller sea lions (Eumetopias jubatus) in the Prince William Sound-Kenai Fjords region of Alaska

Creator:: Meck, Stephen R.
Abstract:: Range, areas of concentrated activity, and dispersal characteristics for juvenile Steller sea lions Eumetopias jubatus in the endangered western population (west of 144° W in the Gulf of Alaska) are poorly understood. This study quantified space use by analyzing post-release telemetric tracking data from satellite transmitters externally attached to n...
Resource Type:: Masters Thesis
Full Text:: (E. jubatus) in the Prince William Sound-Kenai Fjords Region of Alaska

Using DNA Metabarcoding to Study Interactions Between Native Bees and Plants: Technical Developments and Applications

Creator:: Arstingstall, Katherine A.
Abstract:: Pollination is an essential ecosystem service that sustains functioning ecosystems and aids in food production. In response to recent, widespread declines of managed and native bee populations, many land managers have shown interest in developing conservation and restoration plans for enhancing native bee habitat. However, there is a lack of...
Resource Type:: Masters Thesis
Full Text:: like to thank our field and laboratory technicians: James McKnight, Coltyn Kidd, and Marisa McCaskey

The Role of Grazing and Weather in Nest Predator-Prey Dynamics and Reproductive Success of Sagebrush-obligate Songbirds

Creator:: Schroeder, Vanessa M.
Abstract:: Livestock grazing occurs worldwide, spanning over 25% of land globally. Effective conservation of biodiversity relies upon understanding the interactions of agricultural management practices and increasingly variable weather associated with climate change. I evaluated grazing, weather and predator-prey interactions within a grazing experiment in the sagebrush ecosystem of southeastern Oregon. I...
Resource Type:: Masters Thesis

Ecology of the striped seaperch, Embiotoca lateralis, in Yaquina Bay, Oregon

Creator:: Gnose, Charles E.
Resource Type:: Masters Thesis
Full Text:: the guidance of Mr. Gerald B. Talbot and Mr. James L. Squire of the Tiburon Marine Laboratory. Dr

Life history and evolutionary adaptation of Pacific salmon and its application in management

Creator:: Wevers, Mary Jo
Abstract:: An approach to understanding and managing anadromous salmon, steelhead, and sea-run cutthroat trout (Oncorhynchus spp.) based on life history and evolutionary adaptive capacities of species and stocks is presented. Species, stocks, and local populations are viewed as systems that are continuously adapting to changing environmental conditions. They have the potential...
Resource Type:: Dissertation
Full Text:: Evolutionary Adaptation of Pacific Salmon and its Application in Management Abstract approved: Charles E

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