Bishopp, Michael.

Thesis (M.S.)--Washington State University, 2004. / Title from PDF title page (viewed on May 28, 2005). Includes bibliographical references (p. 149-158).

Pincetich, Christopher Aaron.

Thesis (Ph. D.)--University of California, Davis, 2004. / Degree granted in Pharmacology and Toxicology. Also available via the World Wide Web. (Restricted to UC campuses)

Seubert, John Matthew

No description available.

Grout, J. A.

No description available.

Lemke, Malgorzata Anna

No description available.

Grand, Tamara C.

No description available.

Valsta, Liisa M.

In rodent models as well as in fish models there are significant species differences in the susceptibility toward aflatoxin B₁ (AFB₁) carcinogenesis. Mouse is less susceptible toward AFB₁ carcinogenesis than rat. Researchers have come to the conclusion that the lower susceptibility of mice is not a result of less effective activation of AFB₁, but rather of more effective inactivation of the toxic intermediate AFB₁-2,3-epoxide, and especially inactivation through the glutathione (GSH) conjugation...

Lewis, Julie Maureen

The influence of a diet containing salmon flesh and its oil on plasma lipids, cholesterol absorption, as well as fecal neutral and acidic steroid excretion was studied. Two female and four male normolipidemic subjects were fed diets containing approximately 40% of their caloric intake from salmon oil, polyunsaturated vegetable oil or saturated fat. Each diet was fed for four weeks. Venous blood was drawn twice weekly for the determination of plasma cholesterol and triglycerides. C¹⁴ cholesterol ...

Chung, Alton W.

Juvenile coho salmon (101-400 mm) were sampled by purse seine off the Pacific Coast from Waatch Point, Washington to Four Mile Creek, Oregon, out to 30 mi offshore, during the months of May, June, and September in 1982 and 1983. Sea surface temperature, surface salinity, surface chlorophyll-a concentration, and Secchi depth were measured at each station. Sea surface temperatures were higher in 1983 than in 1982, while surface chlorophyll-a concentrations and surface salinities were lower. Catch ...

Price, David M.

I examined habitat electivity and movement patterns of adult spring chinook salmon at microhabitat and channel unit spatial scales, and seasonal to annual temporal scales in seven streams in the Grande Ronde, John Day, and Imnaha basins. The objective was to compare habitat use and availability among streams, channel units, and microhabitats, and to assess chinook salmon fidelity to those habitats using radio-telemetry. The analyses showed that habitat quality and availability in the seven study...

Sorhus, Colin

Graduation date: 1981

Osman, Hussein Osman Ahmed

Graduation date: 1953

VanderKooi, Scott P.

Electrofishing is a sampling tool commonly used by fisheries researchers. While much is known about the effects of electroshock on fish physiology, consequences to the immune system and disease progression have not received attention. To understand the effects of electroshock on immune function we undertook a comparison of electroshock and handling stress in regards to selected immune functions and disease progression in juvenile spring chinook salmon (Oncorhynchus tshawytscha). The handling str...

Harrahy, Laura Nicole Martini

Stress, including extreme or rapidly changing temperatures, are known to have deleterious effects on fish health and physiology. This thesis examines the combined effects of elevated acclimation temperature and acute handling stress on the number of antibody producing cells, plasma lysozyme concentrations, and the number of pronephric leukocytes in juvenile chinook salmon (Oncorhynchus tshawytscha). An additional goal of this thesis was to explore the effects of a temperature fluctuation, as a p...

Mayer, Kent Corey

Spring chinook salmon, Oncorhynchus tshawytscha, in the Snake River Basin are listed as endangered under the Endangered Species Act. The typical life history of spring chinook salmon is semelparous. An experiment was performed to see if mature male spring chinook salmon parr could be reconditioned after hand-spawning and spawned in successive years. The mature male parr were part of a 1997 and 1998 cohort of captive broodstock from the Grande Ronde River Basin in Oregon. Force-feeding was combin...

Milston, Ruth Helen

Environmental factors such as chemical contamination can have immunomodulatory effects on the immune response of fish and may be contributing to the decline in salmonid populations by augmenting disease susceptibility. Xenobiotics can interfere with the immune system at several levels of complexity, and different immune cells and processes have variable sensitivity to pollutants. For this reason, a suite of tests is required to evaluate immunomodulatory mechanisms. In this thesis, I formulated a...

Price, Carol Seals

From 1998-2000, laboratory studies were conducted to examine factors that impact saltwater-entry behavior and saltwater preference (SWP) of juvenile chinook salmon, Oncorhynchus tshawytscha. These factors included bacterial kidney disease, stress and the presence of trout, O. mykiss. An additional study investigated the orientation of the startle response of chinook salmon within a salinity gradient. All experiments were conducted in 757-1 tanks in which a stable, vertical salinity gradient was ...

Misumi, Ichiro

In this thesis, we examined the effects of the exposures to anthropogenic pollutants on the fish, primarily juvenile chinook salmon, immune system using newly and recently developed immune assays. In addition, we developed a new assay for measuring immunocompetence of fish. In the first chapter, the Alamar Blue assay was developed to quantify the proliferation of chinook salmon (Oncorhynchus tshawytscha) leukocytes. Isolated splenic and pronephric leukocytes were stimulated with different concen...

Marin Jarrin, Jose R., 1980-

Early life stages of many marine and diadromous fish species use sandy beach surf zones, which occur along >50% of the world's marine coastlines. This extensive habitat can provide juvenile fishes with an abundant supply of potential prey and the ability to hide from predators in its shallow turbid waters. Chinook salmon is an anadromous species that migrates to the ocean during their first (subyearlings) or second (yearlings) year of life. The majority of subyearlings reside in estuaries during...

Whitcomb, Amelia C.

Evidence for reduced reproductive success (RS) of wild spawning hatchery-reared fish invites serious consideration with regard to the detrimental effects on subsequent generations of wild populations. Mate choice was evaluated as a potential mechanism contributing to these observed RS differences using a previous pedigree of wild spawning hatchery-reared and wild origin coho salmon (Oncorhynchus kisutch). Genetic variance at immune-relevant genes was used as ametric toexaminematechoice. Twoyears...

Adams, Noah Swayambhu

Genetic differences between early and late forms of Alaskan chinook salmon (Oncorhynchus tshawytscha) were identified using two genetic approaches: mitochondrial DNA (mtDNA) analysis and protein electrophoresis. The study populations consisted of early- and late-run chinook salmon in each of the Kenai and Kasilof rivers in Alaska, and a single population from the Minam River, Oregon, that provided a relative scale for the differences among the Alaskan populations. Two segments of mtDNA were ampl...

Torgersen, Christian E.

This study examined the distribution and behavior of adult spring chinook salmon (Oncorhynchus tshawytscha) related to patterns of stream temperature and physical habitat at channel unit, reach, and basin-wide spatial scales in both a wilderness stream and a disturbed stream in the John Day River basin in northeastern Oregon. Thermal remote sensing of holding and spawning reaches in the upper subbasins of the North Fork and Middle Fork John Day River provided spatially continuous maps of stream ...

Kelsey, Denise A.

Three experiments were designed to determine if and how steelhead trout, Oncorhynchus mykiss, may affect chinook salmon, O. tshawytscha, when they are confined together as in a raceway or on a barge. We observed groups of chinook and steelhead together and groups of only chinook in a behavioral experiment to determine if steelhead are aggressive and if their presence changed the behavior of chinook. Two physiological experiments were completed to determine if the loading of steelhead on top of c...

Bentsen, Vidar Johan

An experiment was performed in four artificial stream channels during summer and autumn to investigate the effects of biotic and abiotic factors on habitat choice of juvenile Atlantic salmon (Salmo salar). To investigate factors determining habitat choice, the stream channels had sloped river beds creating two distinct habitats (shallow and deep). The main factor, large Atlantic salmon present (large present), was the most important factor affecting juvenile habitat choice during summer time exp...

Pudota, Jayaprabandh

Biofouling is the one of the main problems in marine finfish aquaculture. Biofouling occludes the nets and incurs major costs to fish farmers in the form of copper containing anti fouling paints used on the net surfaces, cleaning and changing of nets. Copper containing anti fouling paints is the major protective method in use by the fish farmers, but given the toxicity of the copper towards the marine invertebrates and its ability to accumulate in the food chain, it may face a ban in marine aqua...

Jackson, Terry A.

Habitats for juvenile chinook salmon (Oncorhynchus tshawytscha) were observed at a high flow during the spring of 1989 and at a low flow during the spring of 1991 in the lower American River of California. Parameters of microhabitats in eight macrohabitats were measured. Mean column water velocity and total water depth variables were used to statistically compare juvenile chinook salmon microhabitat distributions between and among macrohabitat type/reach and flow combinations. Using mean column ...

Hulett, Patrick L.

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 of various life history stages within a single generation. Nine biochemical traits (enzyme loci) and 12 meristic traits were characterized for adult fall chinook a...

Slater, Caleb H.

Graduation date: 1992

Gudjonsson, Sigurdur

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, and Pleistocene. These formations have different hydrological characters and different landscapes. There are also large differ...

Wood, Patricia A. (Patricia Ann), 1969-

Graduation date: 1995

A whole-cell DHA-rich algal product (A-DHA, provided by Evonik Industries) that is rich in DHA (125 mg DHA/g dry matter) is a possible replacement for fish oil in salmonid diets. The nutrient digestibilities of the algal product were measured in rainbow trout in freshwater and in Atlantic salmon in saltwater (32-33 ppm). In experiment 1, rainbow trout (initial weight ~ 300g) were randomly assigned to 12 x 120 L tanks (n = 10 per tank). A reference diet containing 1% Celite as an indigestible mar...

Chiaramonte, Luciano V.

Aquatic ecosystems continue to be increasingly affected by climate warming. For salmonids in the Pacific Northwest of North America, increasing temperatures pose tighter thermal constraints on their habitat use as well as aspects of their individual performance, such as disease resistance. This thesis examines the effect of temperature on the phenology of the Ceratomyxa shasta life cycle, the effect of thermal refugia on disease risk in juvenile salmonids in the Klamath River, CA, and the spatia...

Stickler, Morten

No description available.

Bendiksen, Eldar Åsgard

The aim of this study was to investigate the effects of water temperature and salinity on lipid nutrition of farmed Atlantic salmon (Salmo salar L.) parr and smolt. Salmon parr were held at low water temperature (2°C) for six months while being fed feeds that differed in oil source (i.e. marine fish oil or vegetable oil blend) and concentration (low, 21% and high, 34%). The responses at low temperature were compared with those of fish held at 8°C using full-factorial design. Feeding and growth w...

Lans, Linnea

ABSTRACT   Migration is common among populations of brown trout (Salmo trutta) and Atlantic salmon (Salmo salar). However, not all individuals in the same population migrate, a phenomenon referred to as partial migration. The aim of this thesis was to investigate if an individual’s behaviour and metabolic rate influences its decision to migrate and how such knowledge may be used when trying to produce hatchery-raised smolts with as high a proportion of migrating individuals as possible. In paper...

Handå, Aleksander

Norwegian salmon production doubled from 0.43 million tons in 1999 to 0.86 million tons in 2009, with further growth expected. A considerable amount of the feed used is released into the surrounding waters as respiratory products, faeces and uneaten feed, and there is an increasing concern regarding the potentially negative impacts that this nutrient load may have. One of the major challenges for the sustainable development of salmon aquaculture is therefore to minimize waste discharges that may...

Dougan, Michael C. R.

Low intensity (1-1.5 body lengths per second, b1.s-1 ), short or long term exercise training significantly reduced the growth rate of underyearling (0+) chinook salmon, Oncorhynchus tshawytscha, at all stages of development from 'zip-up' fry to post-smolt (at 13-15 °c). Decreased growth with training was observed in both hatchery and wild chinook, and in 0+ sockeye salmon, O. nerka. Trained fish had lower weight specific (SGR) and linear growth rates (LGR), condition factor (CF), and exhibited l...

Rosengrave, Patrice Christina

Marine and freshwater environments support numerous species of teleost fish with a wide and diverse range of reproductive strategies. Despite the considerable interest in fish reproduction, our knowledge regarding ejaculate traits and factors affecting them is limited. Using computer-assisted sperm analysis (CASA) I measured ejaculate traits (sperm swimming speed, motility, path trajectory, longevity and concentration) from sexually mature chinook salmon (Oncorhynchus tshawytscha) activated in f...

Eriksson, Torleif

This thesis evaluates the adaptive significance of annual cycles on the migratory behaviour of Baltic salmon (Salmo salar L.). The studies have included field experiments as well as laboratory studies gf maturity and migratory behaviour patterns of smolts and postsmolts mainly from the Angerman river population. Contrasting to the phenotypical elasticity in life-history traits, Baltic salmon was found to have a rather strict temporal organization of their annual behavioural patterns. Two year ol...

Starheim, Colette Christiane Angela

Long-duration records are necessary to understand and assess the long-term dynamics of natural systems. The purpose of this research was to use dendrochronologic modelling to construct proxy histories of hydroclimatic conditions and Pacific salmon abundance in west central British Columbia. A multi-species regional network of tree ring-width and ring-density measurements was established from new and archived tree-ring chronologies. These chronologies were then used in multivariate linear regress...

Roberts, Nicola Rani Hannah

Salmon aquaculture is a controversial industry in British Columbia (BC). First Nations in BC have expressed concerns about possible contamination of traditionally harvested foods by waste from salmon farms. Trace elements are released from farms via waste feed and feces, as well as leaching from netpens and antifouling paints. In addition to elemental analysis, farm waste can also be traced using stable isotopes of nitrogen and carbon. Due to the use in salmon feed of protein and oil derived fro...

Chan, Anthony Sai-Cheung

In young coho salmon (Oncorhynchus kisutch), UVR is known to elicit exposure avoidance behavior and suppress aggressiveness. The latter observation has been attributed to the indirect effect of fish seeking shade from solar UVR under rocks consequently losing sight of prospective rivals. The present study quantified the direct impacts of UVR on agonistic (Strikes, Chases, Approaches) and feeding behaviors in juvenile coho salmon by furnishing outdoor aquaria with structural elements (i.e., inver...

Penney, Zachary

Recent advances in otolith microchemistry have established that trace element composition can be used to chemically reconstruct fish life history and serve as a stock identification tool. In modern fisheries practices, these two applications are especially pertinent to wild salmon populations, which are difficult to track over large spatial scales and nearly impossible to identify in mixed populations. This project has applied a novel method using laser ablation inductively coupled plasma mass...

Fitzgerald, Mickey

This thesis examines J. H. Todd & Sons Ltd., a British Columbia family-owned and run fish packing company during the years 1881 through 1954. The research presented in this paper outlines the contribution of individual Todd family members to both the success and eventual demise of the company. Also examined is the history of the B. C. salmon canning industry, the evolution of J. H. Todd & Sons Ltd., the role of the company in the broader context of the B. C. fishing industry; and the factors tha...

Finn, Fia

Individual variation and limited plasticity in behavior are factors that have been shown to shape populations and determine how well individuals are doing in different stages of life. When salmon transform from parr to smolt and start the migration out to sea many factors together make an individual successful. The hypothesis of this study was that the boldness of individual smolt (1 and 2 year olds) is correlated to their inclination to migrate downstream. The study also investigated difference...

Trombley, Susanne

Leptin is a peripheral adiposity signal and a key hormone in energy balance regulation in mammals, acting as a link between nutritional status and the endocrine reproductive axis. If this is also the role of leptin in fish is not fully understood. This thesis investigates how different components of the leptin system are affected by sexual maturation and seasonal changes in energy balance in male Atlantic salmon (Salmo salar L.) parr under fully fed and feed-restricted conditions. Moreover, the ...

Buryniuk, Mardell

High accumulations of solid wastes generated by coastal fish farms may affect both the caged fish and the surrounding environment, and it is this concern, universal to fish farmers and environmentalists alike, that was the impetus for this study. A dynamic, deterministic simulation model was developed using a combination of empirical and mechanistic approaches to simulate the accumulation of solid waste on a screen-like device located beneath a fish farm. Solid waste was freshly collected and si...

Salmon, Richard J. (Richard John)

Second copy has title: Prevalence and determination of mast cell type within the periodontal ligament of the developing rat tooth. Bibliography: leaves 109-119. Mast cells are commonly associated with tissue inflammation and can expel an array of cytokines and mediators during activation or injury to the cell. Using rats, this study aims to assess the location and prevalence of mast cells about the developing first maxillary molar crown and periodontal ligament (PDL) of the developing mesiobucca...

Hance, Dalton J.

from the summer dry season to the winter wet season. Such movement that connects summer and winter habitats may be particularly important for coho salmon, O. kisutch, because availability of overwintering habitat can limit freshwater survival for this species. Here, I describe basin-scale variability in the spatial pattern of fall movement for juvenile coho salmon between mainstem and tributary streams during the fall of 2002, 2003, 2004, and 2005. Juvenile coho salmon were tagged with a passive...

MATSUURA, Hirotaka, HASEGAWA, Takuya, NAGATA, Hitomi, TAKATANI, Kohei, ASANO, Motoki, ITOH, Akihide, HARAGUCHI, Hiroki

No description available.