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Stress, osmoregulation, and the hormone cortisol in yearling coho salmon, Oncorhynchus kisutch

Creator:: Redding, Joseph Michael
Abstract:: Freshwater (FW) and seawater (SW) acclimated yearling coho salmon, Oncorhynchus kisutch, were subjected to severe confinement stress in FW, SW, or a medium (1/3 SW) that was approximately isosmotic to the fish's blood. Chronic stress caused osmotic imbalances in FW and SW, but not in 1/3 SW. In SW, blood...
Resource Type:: Dissertation

Deposition and persistence of polynuclear aromatic hydrocarbons after slash burning clear-cut sites in Oregon

Creator:: Sullivan, Timothy Joseph
Abstract:: Research has been completed which identifies qualitatively and quantitatively the deposition, persistence and fate of polynuclear aromatic hydrocarbons (PNAH) on burned clear-cut sites in Oregon. Eight PNAH were identified and quantified in post-burn litter samples taken from four slash-burned sites. Deposition of lower molecular weight, 3-4 ring compounds was considerably...
Resource Type:: Dissertation
Full Text:: Joseph Sullivan A THESIS submitted to Oregon State University in partial fulfillment of the

Pheromonal mediation of reproductive behavior in the brown tree snake

Creator:: Greene, Michael John
Abstract:: In animals, reproductive behaviors serve to attract individuals together during the breeding season and to coordinate the behavioral and physiological states of individuals so that mating can successfully occur. In snakes, the various reproductive behaviors including courtship, mating, courtship inhibition, male combat and trailing are mediated primarily by pheromones. Pheromones...
Resource Type:: Dissertation
Full Text:: physiology or behavior of a conspecific when released by one individual into the environment. The research

Utilization of lipid by primiparous beef heifers during the postpartum period

Creator:: Filley, Shelby Jean
Resource Type:: Dissertation
Full Text:: During the Postpartum Period. Abstract approved: Harley A. urner Fredrick Stormshak Experiments

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Creator:: Wildy, Erica Lynn
Abstract:: Predator-prey interactions have historically been studied to explain patterns of organization observed in populations and communities. They have also been important in understanding the evolution of antipredator responses in prey and counterstrategies in predators. Despite the breadth of knowledge that exists for heterospecific interactions, relatively few studies have investigated the...
Resource Type:: Dissertation
Full Text:: widely documented within a diversity of animal groups including amphibians. In this thesis, I offer

Neuronal and hormonal control of the vascular system of the marine mollusc, Aplysia californica

Creator:: Ligman, Scott H.
Abstract:: The vascular system of Aplysia californica is a simple visceromotor system with three main arteries innervated by a small pool of identified neurons. I used this system to study the functions of neuropeptide transmitters and their actions on neural and muscle tissues. A central finding of this study is that...
Resource Type:: Dissertation
Full Text:: . Brownell The vascular system of Aplysia californica is a simple visceromotor system with three main

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

Peptidergic regulation of visceral motor circuits in the Sea Hare, Aplysia californica

Creator:: Morgan, James L. M.
Resource Type:: Dissertation
Full Text:: ; Fisher et al., 1988; Sossin et al., 1990). Vesicles containing a-BCP are preferentially distributed to

Endocrinology of fur growth and reproduction in mink

Creator:: Rose, William Jackson
Abstract:: Experiments were conducted to determine: 1) the effects of exogenous melatonin and reduced photoperiod on molting and growth of the winter pelage (fur) and 2) whether changes in serum prolactin levels of treated and control mink during this same period were correlated with growth of winter fur. Adult and kit...
Resource Type:: Dissertation
Full Text:: melatonin or a 6 hour light:18 hour dark photoperiod molted the summer pelage and attained prime winter

Partial characterization of gelatinases produced by preimplantation porcine, ovine and bovine embryos

Creator:: Chamberlin, RaeAnne
Resource Type:: Masters Thesis
Full Text:: microdrops containing aMEM with 0.15% BSA (Sigma, A-4378) under paraffin oil (Fisher Scientific Co

ScholarsArchive@OSU

Stress, osmoregulation, and the hormone cortisol in yearling coho salmon, Oncorhynchus kisutch

Deposition and persistence of polynuclear aromatic hydrocarbons after slash burning clear-cut sites in Oregon

Pheromonal mediation of reproductive behavior in the brown tree snake

Utilization of lipid by primiparous beef heifers during the postpartum period

Cannibalism in larvae of the long-toed salamander, Ambystoma macrodactylum

Neuronal and hormonal control of the vascular system of the marine mollusc, Aplysia californica

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

Peptidergic regulation of visceral motor circuits in the Sea Hare, Aplysia californica

Endocrinology of fur growth and reproduction in mink

Partial characterization of gelatinases produced by preimplantation porcine, ovine and bovine embryos

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