Index Catalog // ScholarsArchive@OSU

A hierarchical stream habitat classification system: development and demonstration

Creator:: Frissell, Christopher A.
Abstract:: Classification of Streams and stream habitats is useful for research involving establishment of monitoring stations, determining local impacts of land use practices, generalization from site-specific data, and assessment of basin-wide, cumulative impacts of human activities on streams and their biota. This thesis presents a framework for a hierarchical classification system,...
Resource Type:: Masters Thesis

A model for understanding the influence of selective and nonselective harvest on fish populations

Creator:: Hirai, Takayuki
Abstract:: To understand the influence of selective harvesting on the adaptive capacity of fish populations in changing environments, a computer simulation model was developed. In the model, hypothetical populations were composed of five different life histories, which were genetically determined. Each life history type had its own rate of survival and...
Resource Type:: Masters Thesis

A review of the Gadopsidae, with a description of a new species from Tasmania

Creator:: Parrish, Richard H.
Abstract:: The taxonomic placement of Gadopsidae is discussed and an evaluation of its osteological relationships with related families is given. Similarities to the more primitive genera of the trachinoids, notothenioids, and uranoscopoids are noted and the inclusion of Gadopsidae in the Trachinoidae is recommended. A description of the geological history of...
Resource Type:: Masters Thesis

A steady-state model of ecological hierarchy

Creator:: Thompson, Grant Garrison
Abstract:: A generalized mathematical model of ecosystems is developed. The model begins with the general class of systems known as state-determined systems, in which the time-derivative of each state variable is a function of some subset of the set of all system state variables and .environmental parameters. A formal basis is...
Resource Type:: Dissertation

A systems classification of watersheds and streams

Creator:: McCullough, Dale A.
Abstract:: Adequate management and scientific investigation of ecosystems depends on classification of landscape systems based on all significant bio-physical and associated cultural properties. The present classification is a hierarchical systems design that can be modeled in terms of a natural system interacting with its level-specific environment. A watershed system in this...
Resource Type:: Dissertation

A theoretical framework for economic fishery management

Creator:: Thompson, Grant Garrison
Abstract:: A theoretical framework for economic fishery management was developed. Extensive isocline analysis of a general fishery model yielded a detailed look at the possible equilibrium behavior of a system that was allowed to vary in terms of the levels of its environmental parameters, its composition, and the response functions governing...
Resource Type:: Masters Thesis

An analysis of stock separation in the pink shrimp, Pandalus borealis

Creator:: Gardner, Lee Ann
Resource Type:: Masters Thesis

An analysis of the stock structure of silver hake, Merluccius bilinearis, off the northeast coast of the United States

Creator:: Almeida, Frank P.
Resource Type:: Masters Thesis

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

Behavioral ecology of juvenile coho salmon (O. kisutch) in stream aquaria with particular reference to competition and aggressive behavior

Creator:: Mason, John Christopher
Resource Type:: Dissertation

Biochemical and physiological aspects of carbon tetrachloride (CCl₄) toxicity in the rainbow trout

Creator:: Pfeifer, Keith Frederic
Resource Type:: Dissertation

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

Biology of the blue and tui chubs in East and Paulina Lakes, Oregon

Creator:: Bird, Franklin Howard
Abstract:: This research was conducted on the life history of the blue chub, Gila (Gila) coerulea (Girard), inhabiting Paulina Lake, Oregon, and the tui chub, Gila (Siphateles) bicolor (Girard), East Lake, Oregon. The results are applied to the fisheries management of these lakes. Both species are endemic to the Klamath River...
Resource Type:: Masters Thesis

Biology of the ratfish, Hydrolagus colliei (Lay and Bennett)

Creator:: Johnson, Allyn G.
Abstract:: In the fall and winter of 1965, 1966, and 1967, 298 ratfish (180 males, 118 females) were collected off the Pacific coast of Oregon and Washington and examined for food habits , parasites, growth relationships and a method of age determination. The following food organisms were found to be the...
Resource Type:: Masters Thesis

Biology of the redtail surfperch (Amphistichus rhodoterus)

Creator:: Bennett, Donald Eugene
Resource Type:: Masters Thesis

Contextual systems description of an Oregon coastal watershed

Creator:: Goetze, Brigitte
Abstract:: Many resource management controversies indicate disagreement about the possible intended and unintended effects of management actions on ecosystems. Researchers have documented a variety of negative effects on specific ecosystems, e. g. the degradation of salmonid habitat due to mass wasting (Hagans et al. 1986). While the effects of some management...
Resource Type:: Dissertation

Correlations between rainbow trout (Salmo gairdneri) populations and stream environments in Eastern Oregon streams

Creator:: Grimes, Terry Neill
Resource Type:: Masters Thesis

Determination of molecular hydrocyanic acid in water and studies of the chemistry and toxicity to fish of metal-cyanide complexes

Creator:: Broderius, Steven J.
Abstract:: A reliable, easy, and inexpensive method for determination of molecular hydrocyanic acid (HCN) in solutions of simple and complex metal cyanides is described. The method was used to determine molecular HCN concentrations as low as 0.005 milligram per liter, and can be used for determination of even lower levels. It...
Resource Type:: Dissertation

Differences in pathogenicity and pathology of Vibrio anguillarum and Vibrio ordalii in chum salmon (Oncorhynchus keta) and English sole (Parophrys vetulus) under laboratory conditions

Creator:: Handoyo, Nitimulyo Kamiso
Resource Type:: Dissertation

Distribution and retention of particulate organic matter in streams in the Cascade Mountains of Oregon

Creator:: Speaker, Robert W.
Resource Type:: Masters Thesis

Distribution of fishes and their relationships to environments in selected coastal streams, Douglas and Coos Counties, Oregon

Creator:: Duke, Stephen D'Wayne
Abstract:: This study was an investigation to determine the distribution, abundance and general food habits of salmonids and non-game fishes residing in several selected coastal streams, Douglas and Coos Counties, Oregon. The physical conditions that characterize the various stream habitat types were monitored and the influence of physical conditions on the...
Resource Type:: Masters Thesis

Ecology and decline of a rare western minnow : the Oregon chub (Oregonichthys crameri)

Creator:: Pearsons, Todd N.
Abstract:: Once historically widespread throughout the Willamette and Umpqua River drainages, the Willamette Oregon chub is now restricted to scattered populations along 15 miles of the Middle Fork of the Willamette River whereas the Umpqua Oregon chub is still widely distributed. The decline in the Willamette drainage was more severe because...
Resource Type:: Masters Thesis

Ecology of aquatic habitats associated with stream margins

Creator:: Moore, Kelly M. S.
Abstract:: The morphology and ecological importance of habitats associated with the margin of third-order stream channels in the Oregon Cascades were studied in streams in three different riparian types: 450-year-old conifers, 40-year-old alder, and an open, herbaceous-dominated clearcut. Margins, backwaters, and side channels in streams create important habitat for fry of...
Resource Type:: Masters Thesis

Effects of beaver on stream channels and coho salmon habitat, Kenai Peninsula, Alaska

Creator:: Sanner, Carol Jo
Resource Type:: Masters Thesis

Effects of biologically stabilized kraft mill effluents on juvenile salmonid growth

Creator:: Borton, Dennis Leland
Resource Type:: Masters Thesis

Effects of chlorinated biologically stabilized kraft mill effluent on the mortality and growth of Coho salmon

Creator:: Steil, Deborah L.
Abstract:: Ninety-six hour acute toxicity bioassays were employed to determine the tolerance of juvenile coho salmon to chlorinated stabilized kraft mill effluent (SKME). In addition the effect of chlorinated SKME on the growth of juvenile coho salmon in six and ten day experiments was studied. Results of the acute toxicity tests...
Resource Type:: Masters Thesis

Effects of dieldrin on the intrinsic rate of increase of the guppy, Poecilia reticulata Peters

Creator:: Roelofs, Terry Dean
Resource Type:: Dissertation

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

Effects of pentachlorophenol on cultures of embryonic cells from Oncorhynchus kisutch

Creator:: Hanes, David Fink
Resource Type:: Dissertation

Effects of perturbation on community structure and organization in aquatic microcosms

Creator:: Finger, Susan Everett
Abstract:: Aquatic communities consisting of guppies, amphipods, copepods, snails, nematodes, rotifers, protozoans, euglenoid flagellates, and other microorganisms were established in sixteen laboratory microcosms. Guppies were exploited at four different levels (0 percent, 10 percent, 20 percent, and 40 percent of the population biomass) with four communities at each level of exploitation....
Resource Type:: Masters Thesis

Effects of salinity on the tolerance, growth, food conversion and oxygen consumption of kelp greenling (Hexagrammos decagrammus)

Creator:: Zahr, Camille Reda
Abstract:: The osmoregulatory capabilities and tolerance of Kelp greenling, Hexagrammos decagramrnus, were studied in a series of seven salinities ranging from fresh water to concentrated sea water of 50 ppt. Results indicated that they were tolerant over a wide range of salinities but were incapable of surviving below 5 ppt and...
Resource Type:: Masters Thesis

Effects of temperature, ration, and size on the growth of juvenile steelhead trout, Salmo gairdneri

Creator:: Wurtsbaugh, Wayne Alden
Abstract:: The effects of temperature, temperature fluctuation, and fish size on the growth of juvenile steelhead trout (Salmo gairdneri) were studied in experiments which lasted 10 to 25 days. Groups of fish were fed at ration levels varying from near-starvation to repletion. Decelerating, curvilinear relationships between rates of food consumption and...
Resource Type:: Masters Thesis

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

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

Evaluation of the sample ratio of sublegal to legal male crabs used to predict harvest of Dungeness crab (Cancer magister)

Creator:: Shaul, Warren
Abstract:: The sample ratio of sublegal to legal male crabs retained in crab pots was used in calculations to predict future harvest of Dungeness crabs, Cancer magister, along the Oregon coast. Accurate predictions by this method require a sample ratio representative of the population ratio. I sampled the Oregon Dungeness crab...
Resource Type:: Masters Thesis

Evidence for the nonessentiality of ascorbic acid in the diet of the rainbow trout, Salmo gairdneri

Creator:: Primbs, Edward R. J.
Abstract:: Numerous tests were applied to rainbow trout of eleven months of age to determine whether ascorbic acid is an essential element of the diet of these fish. Although previous work had been done on this question, conflicts in the results, the large reliance upon abnormal symptoms such as lordosis and...
Resource Type:: Masters Thesis

Feeding ecology and aspects of the biology of largemouth bass, rainbow trout, brown trout, and relict dace and the dietary overlap of largemouth bass and rainbow trout with canvasback and redhead ducks at Ruby Marsh, Nevada

Creator:: Carmichael, Richard W. (Richard William)
Resource Type:: Masters Thesis

Fish production and related limnology in two experimental ponds as influenced by fertilization

Creator:: Goodwin, Chester Lynn
Abstract:: The merits of fertilizing warmwater fish ponds with dry organic manure were studied from October, 1964 to November, 1965 using two experimental ponds in the Willamette Valley. One pond (pond II) was fertilized with urea and single superphosphate and the other (pond III) was fertilized with dried manure as well...
Resource Type:: Masters Thesis

Food relations and production of cutthroat trout, Salmo clarki clarki Richardson, in an experimental stream

Creator:: McIntyre, John D.
Abstract:: Production, food consumption and food habits by groups of small, mixed and large sizes of cutthroat trout were studied in enriched and unenriched sections of the Berry Creek Experimental Stream, Oregon State University. Continuous introduction of sucrose and urea to portions of the stream resulted in heavy growth of Sphaerotilus...
Resource Type:: Masters Thesis

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

Creator:: Currens, Kenneth P.
Resource Type:: Masters Thesis

Geomorphic influences on habitat formation, distribution, and development and the classification of upland coastal Oregon streams

Creator:: Hurley, Michael D.
Abstract:: A framework is presented for a more causal explanation and ordering of stream characteristics than traditional means have used. Patterns of stream habitat distribution are related to particular characteristics of the geomorphology of watersheds. Variability in stream characteristics can be explained by the spatial distribution of properties of the watershed...
Resource Type:: Masters Thesis

Growth and stamina of sea-water acclimated juvenile fall chinook salmon

Creator:: Kepshire, Bernard Michael
Abstract:: Juvenile fall chinook salmon were acclimated to full strength sea water at 66, 73, and 80 days after hatching. Survival in sea water for 14 days was used as the criterion for successful acclimation. The growth of salmon acclimated to sea water was slower over the period of observation (134...
Resource Type:: Masters Thesis

Growth of channel catfish, Ictalurus punctatus (Rafinesque), fed artificial diets in ponds near Corvallis, Oregon

Creator:: Suraswadi, Plodprasop
Abstract:: The experiment was conducted at the Soap Creek farm ponds near Corvallis, Oregon. Oregon Moist Pellet and Purina Trout Chow at three different rates of feeding for each diet were used to feed fingerling channel catfish stocked at the rate of 1,000 per acre. A complete random design and Fisher's...
Resource Type:: Masters Thesis

Host parasite relationships between Gyrodactylus stellatus and the English sole (Parophrys vetulus)

Creator:: Handoyo, Nitimulyo Kamiso
Resource Type:: Masters Thesis

Individual and combined effects of cyanide, pentachlorophenol and zinc on juvenile chinook salmon and invertebrates in model stream communities

Creator:: Negilski, David Stanley
Abstract:: The effects of sublethal concentrations of cyanide, pentachlorophenol and zinc individually and in combination on the growth and production of juvenile chinook salmon, Oncorhynchus tshawytscha (Walbaum), and aquatic invertebrates in model stream communities were studied in three experiments during 1971 and 1972 at the Oak Creek Fisheries Research Laboratory, Oregon...
Resource Type:: Masters Thesis

Influence of competition on the food consumption and production of animals in laboratory stream communities

Creator:: Brocksen, Robert W.
Resource Type:: Masters Thesis

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

Interaction and behavior of the redside shiner (Richardsonius balteatus) and the steelhead trout (Salmo gairdneri) in western Oregon : the influence of water temperature

Creator:: Reeves, Gordon H.
Abstract:: Water temperature influenced interactions between redside shiners and juvenile steelhead trout (≥1+) in the field and the laboratory. Distribution of the two species within various habitats was determined in three streams with different water temperature regimes. The range of habitats occupied by trout in allopatry at cool temperatures and at...
Resource Type:: Dissertation

Interrenal and metabolic responses to stress and their modifying factors in juvenile salmonid fishes

Creator:: Barton, Bruce Alexander
Abstract:: Genetic, ontogenetic, and environmental factors modified characteristic interrenal and glycemic responses to stress in juvenile salmonid fishes. During continuous confinement stress, plasma cortisol rose more quickly in chinook salmon, Oncorhynchus tshawytscha, acclimated to high rather than medium or low temperatures; hyperglycemia following either acute or chronic stress was also highest...
Resource Type:: Dissertation

Lipid content and fatty acid composition of aquatic insects : dietary influence and aquatic adaptation

Creator:: Hanson, Boyd Jay
Resource Type:: Dissertation

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