Index Catalog // ScholarsArchive@OSU

Endocrine regulation of final oocyte maturation and sex differentiation in salmonids

Creator:: Fitzpatrick, Martin S.
Abstract:: Sexual maturation and sex differentiation comprise facets of a common theme: reproduction. The endocrine system regulates many of the critical physiological processes necessary for reproduction and offers a framework within which technologies can be developed for controlling sexual maturation and sex differentiation. The studies described in this thesis were undertaken...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Martin Stone Fitzpatrick for

The effects of intraspecific plant competition and insect herbivory of ragwort (Senecio jacobaea) populations

Creator:: Fitzpatrick, Greg S.
Abstract:: I conducted field studies to determine the effect of insect herbivory and intraspecific plant competition on ragwort Senecio jacobaea. The objectives were to determine the patterns and causes in the distribution of the ragwort flea beetle Longitarsus jacobaeae foraging among varying densities of ragwort, to measure the behavioral and numerical...
Resource Type:: Masters Thesis
Full Text:: herbivory of ragwort (Senecio jacobaea) populations AN ABSTRACT OF THE THESIS OF Greg S. Fitzpatrick for

Analytical method for the prediction of reliability and maintainability based life-cycle labor costs

Creator:: Fitzpatrick, Mark W.
Abstract:: An analytical method for predicting life-cycle maintainability labor costs is developed. The purpose of the analytical method is to allow the evaluation of products, based on life-cycle labor cost, early in the design process. The Boeing 737-300/400/500 Bleed Air Control System is used as a test model, and the results...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Mark W. Fitzpatrick for the degree

The Mexican crafts in relation to the related arts of Calexico public schools

Creator:: Fitzpatrick, Dorotha Chaffee
Resource Type:: Masters Thesis
Full Text:: (Naine) Date Thesis (Degree) (Majrlr) c; 1c cn Crø.ft8 in Relatton to tX R3I.*tO4 £rt* oí Title

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

Creator:: Sánchez, Wilfrido M. Contreras
Abstract:: Sex differentiation in fish is a labile process that allows sex inversion in several species. The inherent capacity of fish germ cells to differentiate into oocytes or spermatocytes constitutes a key factor allowing for functional sex inversion. This thesis set out to determine the mechanism involved in steroid-induced sex differentiation...
Resource Type:: Dissertation
Full Text:: , Masculinization Methods, and Environmental Effects Abstract approve - Martin. . Fitzpatrick and Carl B

Sexual differentiation and steroid-induced sex inversion in Nile tilapia (Oreochromis niloticus) : 1. Characterization of a gonadal androgen receptor : 2. Masculinization by immersion in methyldihydrotestosterone

Creator:: Gale, William L.
Resource Type:: Masters Thesis
Full Text:: : Martin S. Fitzpatrick and Carl B. Schreck Steroids control gonadal function and development in fishes

Effects of stress on the reproductive performance and physiology of rainbow trout (Oncorhynchus mykiss)

Creator:: Contreras Sánches, Wilfrido M.
Abstract:: The environment under which fish are maintained as broodstock before reproduction is often stressful; however, the impact of stress on broodstock and gamete quality is not well known. We investigated the effects of stress over the final stages (i.e. the 3 months preceding ovulation) of sexual maturation of female rainbow...
Resource Type:: Masters Thesis
Full Text:: ). Abstract approved: Carl B. Schreck and Martin S. Fitzpatrick The environment under which fish are

Oregon’s Forest Collaboratives: A Rapid Assessment

Creator:: Davis, Emily Jane, Cerveny, Lee, Nuss, Meagan, and Seesholtz, David
Abstract:: Oregon leads the U.S. in the number and extent of established collaborative groups on national forests. Understanding similarities and differences in Oregon’s current forest collaboratives may aid more informed approaches to peer learning, policy, and technical assistance in public and private land natural resource management across the U.S. West. Our...
Resource Type:: Technical Report
Full Text:: Meagan Nuss,1 and David Seesholtz2 1 Department of Forest Ecosystems and Society/Forestry and Natural

The ecological and cultural importance of a species at risk of extinction, Pacific lamprey

Creator:: Close, David A., Fitzpatrick, Martin S., and Li, Hiram W.
Abstract:: The cultural and ecological values of Pacific lamprey (Lampetra tridentata) have not been understood by Euro-Americans and thus their great decline has almost gone unnoticed except by Native Americans, who elevated the issue and initiated research to restore its populations, at least in the Columbia Basin. They regard Pacific lamprey...
Resource Type:: Article
Full Text:: Pacific lamprey has been negligible in the David A. Close, Martin S. Fitzpatrick, and Hiram W. Li Close

Coastal steelhead trout : life in the watershed

Creator:: Fitzpatrick, Martin S. and Oregon State University. Sea Grant College Program
Abstract:: Anglers and naturelovers prize steelhead trout for their mystique and power. Oregon has two subspecies of steelhead (so-called because of the metallic appearance of maturing adults) or rainbow trout: a coastal form and an inland form.
Resource Type:: Technical Report
Full Text:: Foundation. Pacific Salmon Life Histories. C. Groot and L. Margolis, editors. Vancouver, B.C.: University of

ScholarsArchive@OSU

Endocrine regulation of final oocyte maturation and sex differentiation in salmonids

The effects of intraspecific plant competition and insect herbivory of ragwort (Senecio jacobaea) populations

Analytical method for the prediction of reliability and maintainability based life-cycle labor costs

The Mexican crafts in relation to the related arts of Calexico public schools

Sex determination in Nile tilapia, Oreochromis niloticus: gene expression, masculinization methods, and environmental effects

Sexual differentiation and steroid-induced sex inversion in Nile tilapia (Oreochromis niloticus) : 1. Characterization of a gonadal androgen receptor : 2. Masculinization by immersion in methyldihydrotestosterone

Effects of stress on the reproductive performance and physiology of rainbow trout (Oncorhynchus mykiss)

Oregon’s Forest Collaboratives: A Rapid Assessment

The ecological and cultural importance of a species at risk of extinction, Pacific lamprey

Coastal steelhead trout : life in the watershed

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