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The Effects Of Strain And Ploidy On The Physiological Responses Of Rainbow Trout Oncorhynchus Mykiss To Ph 95 Exposure
Download The Effects Of Strain And Ploidy On The Physiological Responses Of Rainbow Trout Oncorhynchus Mykiss To Ph 95 Exposure full books in PDF, epub, and Kindle. Read online The Effects Of Strain And Ploidy On The Physiological Responses Of Rainbow Trout Oncorhynchus Mykiss To Ph 95 Exposure ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis The Effects of Strain and Ploidy on the Physiological Responses of Rainbow Trout (Oncorhynchus Mykiss) to PH 9.5 Exposure by : William Andrew Thompson
Download or read book The Effects of Strain and Ploidy on the Physiological Responses of Rainbow Trout (Oncorhynchus Mykiss) to PH 9.5 Exposure written by William Andrew Thompson and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Sublethal Metal Exposure on Physiological Systems of Rainbow Trout (Oncorhynchus Mykiss) by : Howard Christopher Bailey
Download or read book Effect of Sublethal Metal Exposure on Physiological Systems of Rainbow Trout (Oncorhynchus Mykiss) written by Howard Christopher Bailey and published by . This book was released on 1997 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physiological Responses of Rainbow Trout ('Oncorhynchos Mykiss') During Exposure to Copper and Ammonia Following Acclimation to Different Salinities by : Roderic William Wilson
Download or read book The Physiological Responses of Rainbow Trout ('Oncorhynchos Mykiss') During Exposure to Copper and Ammonia Following Acclimation to Different Salinities written by Roderic William Wilson and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acid Exposure Affects Physiological Responses of Juvenile Rainbow Trout to Acute Handling Stress by : U.S. Fish and Wildlife Service
Download or read book Acid Exposure Affects Physiological Responses of Juvenile Rainbow Trout to Acute Handling Stress written by U.S. Fish and Wildlife Service and published by . This book was released on 1984 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth and Physiological Responses of Rainbow Trout, Oncorhynchus Mykiss, to Elevated Carbon Dioxide by : Melody L. M. Danley
Download or read book Growth and Physiological Responses of Rainbow Trout, Oncorhynchus Mykiss, to Elevated Carbon Dioxide written by Melody L. M. Danley and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological Responses of Rainbow Trout (Salmo Gairdneri) to Intermittent Chloramine Exposure by : Thomas William Travis
Download or read book Physiological Responses of Rainbow Trout (Salmo Gairdneri) to Intermittent Chloramine Exposure written by Thomas William Travis and published by . This book was released on 1980 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regulation of Heat Shock Protein 70 Levels in Red Blood Cells of Rainbow Trout by : Lynsi Henrickson
Download or read book Regulation of Heat Shock Protein 70 Levels in Red Blood Cells of Rainbow Trout written by Lynsi Henrickson and published by . This book was released on 2010 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The physiological responses to stressor exposure can be broadly grouped into the organismal and the cellular stress responses. The organismal stress response involves the release of hormones into general circulation, while the cellular stress response involves the synthesis of proteins, the most important being the heat shock proteins (HSPs), which play a role in maintaining protein homeostasis. Elevated HSP70 expression in response to stressors has been demonstrated in trout (Oncorhynchus mykiss) red blood cells (RBCs). The ease of repeated sampling of blood suggests the possibility of using this tissue as a non-lethal marker of cellular stress in fish. This study tested the hypothesis that stressor exposure will elevate HSP70 expression in trout RBCs and the role of stress hormones in mediating this response. Acute heat shock exposure (+12oC) significantly elevated plasma cortisol, glucose and lactate levels in heat shocked fish over 24 h. A tissue-specific response was seen in HSP70 expression in liver, brain, gill and RBCs. To enable measurement of RBC HSP70 concentrations, an enzyme-linked immunosorbent assay (ELISA) was developed using a commercially available rabbit anti-salmon HSP70 and a recombinant chinook salmon (Oncorhynchus tshawytscha) HSP70. To determine effects of chronic exposure, two studies were conducted exposing trout to either cadmium (0, 0.75 or 2.0 [mu]g/L over 28 d) or municipal wastewater effluent (0, 20 or 90% over 14 d). However, neither exposure elicited a significant HSP70 response. Effects of stress hormones on RBC HSP70 levels were tested by exposing cells in vitro to either cortisol (10 and 100 ng/mL) or epinephrine (10 nM) with or without heat shock. Heat shock elevated HSP70 content in trout RBCs but no modulation by stress hormones was seen. It was shown for the first time that RBCs release HSP70 content into the medium in response to an acute heat shock and this release is attenuated by stress hormones. Overall, HSP70 levels in RBCs have the potential to be a reliable non-lethal marker of acute cellular stress effects in fish. The release of HSP70 from RBCs leads to the hypothesis that HSP70 may also have an extracellular role in fish, and warrants further study.
Book Synopsis Temperature, Genetic, and Ration Effects on Juvenile Rainbow Trout (Oncorhynchus Mykiss) Bioenergetics by : Christopher Alexander Myrick
Download or read book Temperature, Genetic, and Ration Effects on Juvenile Rainbow Trout (Oncorhynchus Mykiss) Bioenergetics written by Christopher Alexander Myrick and published by . This book was released on 1998 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Environmental Stressors on Cardiac Gene Expression and Contractility in Rainbow Trout (Oncorhynchus Mykiss) by : Tracey S. Momoda
Download or read book The Effects of Environmental Stressors on Cardiac Gene Expression and Contractility in Rainbow Trout (Oncorhynchus Mykiss) written by Tracey S. Momoda and published by . This book was released on 2014 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rainbow trout (Oncorhynchus mykiss) experience a variety of stressors in their natural environment as well as in aquaculture that can have negative effects on their physiology. The effects of physiological stress and endocrine disruption have been well described in fish. However, there is a scarcity of information on the effects of such stressors on the heart in fish. We examined gene expression in the rainbow trout heart in response to 17[alpha]-ethinylestradiol (EE), the active ingredient in some oral contraceptives, as well as physiological stress. We also assessed contractile function, as a measure of cardiac performance, under conditions of increasing performance demands in sexually immature rainbow trout. In chapter 2, using qRT-PCR, we observed increased vitellogenin (vtg1) in the ventricle, along with, hepatic estrogen receptor (ER[alpha]) and vtg1 mRNA increased with EE exposure, confirming endocrine disruption in both tissues. Stress increased corticotropin-releasing factor receptor 1 (CRF-R1) and JunB in response to stress while nuclear protein 1 (nupr1) and glucocorticoid receptor (GCR2) expression increased only in the population with higher cortisol levels (>100 ng/ml) in response to stress. Interestingly, EE exposure did not affect stress induced gene expression and stress did not have an effect on EE induced gene expression in the heart of rainbow trout. This research highlights the fact that these stressors have the potential to have physiological impacts beyond the target tissues classically thought of for stress (i.e. HPI/A axis) or exposure to estrogenic compounds (i.e. HPG axis). In chapter 3, contractile force production was measured from ventricle strips exposed to increasing concentrations of Ca2 or epinephrine to simulate conditions of increasing performance. Also, to determine the effects of physiological stress, ventricle strips were pre-treated with 100 ng/L cortisol prior to increasing Ca2 or epinephrine. Ventricle strips from males had a greater contractile force production to increasing Ca2+ or epinephrine compared to females, at concentrations greater than 3.5 mM Ca2+ or 1 [micro]M epinephrine. Exposure to cortisol did not have a direct effect on contractility, nor did it have an effect the contractile response to increasing exogenous Ca2+ in either sex. Interestingly, force production did not vary by sex in the cortisol pre-treated exposed to epinephrine, suggesting a sex-dependent response. My findings suggest that there are sex differences in the contractile function in rainbow trout and that these may be modified under conditions related to physiological stress. The rainbow trout is a genetically diverse species found across a variety of habitats. Our results highlight the variation in responses in in contractile function and gene expression in the heart by the different sexes, as well as variation within and among populations that allow rainbow trout to adapt and perform in the presence of stressors in the environment.
Book Synopsis The Physiological Effects of Copper on Fresh Water Rainbow Trout (Oncorhynchus Mykiss) in Normoxia and Hypoxia by : Lone Pilgård
Download or read book The Physiological Effects of Copper on Fresh Water Rainbow Trout (Oncorhynchus Mykiss) in Normoxia and Hypoxia written by Lone Pilgård and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Stress Response of Rainbow Trout (Oncorhynchus Mykiss) Exposed to Lead by : Kenneth A. Phillips
Download or read book The Stress Response of Rainbow Trout (Oncorhynchus Mykiss) Exposed to Lead written by Kenneth A. Phillips and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Stress on the Reproductive Performance and Physiology of Rainbow Trout (Oncorhynchus Mykiss) by : Wilfrido M. Contreras Sánches
Download or read book Effects of Stress on the Reproductive Performance and Physiology of Rainbow Trout (Oncorhynchus Mykiss) written by Wilfrido M. Contreras Sánches and published by . This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 trout, Oncorhynchus mykiss, on their reproductive performance and physiology and that of their progeny. Stress was administered over the period of early vitellogenesis (one and a half months), late vitellogenesis-final maturation (one and a half months), or during both periods (three months). Each stress treatment and control was triplicated with eight females in each replicate (n=24 fish per treatment). The eggs and progeny of each female were kept separate and observations made for four months after transfer to rearing tanks. Cortisol levels were measured in plasma, ovarian fluid and eggs by radioimmunoassay. Fish that experienced stress during final maturation and those that were under stress during the whole experiment spawned on average two weeks earlier than the control group. In contrast, fish stressed during the period of early vitellogenesis spawned at the same time as the controls. Absolute fecundity and fertilization were not significantly affected in any treatment group; however, significant differences were found in relative fecundity. Stress applied early in vitellogenesis resulted in smaller eggs and swim-up fry; but, these differences were not found in juveniles 8 weeks after hatching. Furthermore, we found no differences in survival of the progeny or resistance to the fish pathogen Vibrio anguillarum. Circulating levels of cortisol were high at ovulation in all groups, but significantly less cortisol was observed in the ovarian fluid and eggs. Sex hormone concentrations were high in plasma; however, they were several orders of magnitude lower in the ovarian fluid. These differences were not as extreme as those observed for cortisol. Lower levels of cortisol and sex steroids in ovarian fluid and eggs compared to that which is available from plasma suggests that there is a mechanism by which the female protects the eggs from potentially deleterious effects of prolonged exposure to elevated concentrations of steroids.
Book Synopsis The Effects of Foodborne Deoxynivalenol Exposure in Rainbow Trout (Oncorhynchus Mykiss) Experimentally Infected with F. Psychrophilum by : Ian Ryerse
Download or read book The Effects of Foodborne Deoxynivalenol Exposure in Rainbow Trout (Oncorhynchus Mykiss) Experimentally Infected with F. Psychrophilum written by Ian Ryerse and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Michel Biron Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780315892309 Total Pages :194 pages Book Rating :4.8/5 (923 download)
Book Synopsis Primary and Secondary Responses to Acute Stress in Triploid Rainbow Trout and Brook Trout [microform] by : Michel Biron
Download or read book Primary and Secondary Responses to Acute Stress in Triploid Rainbow Trout and Brook Trout [microform] written by Michel Biron and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1993 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Constant Temperature and Thermal Shifts on Survival, Morphology, and Oxygen Consumption in Rainbow Trout (Oncorhynchus Mykiss) Embryos by : Christopher L. Melendez
Download or read book Effects of Constant Temperature and Thermal Shifts on Survival, Morphology, and Oxygen Consumption in Rainbow Trout (Oncorhynchus Mykiss) Embryos written by Christopher L. Melendez and published by . This book was released on 2019 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental temperature is a crucial environmental factor that influences many physiological functions in fishes. Rainbow trout (Oncorhynchus mykiss) are a native anadromous species that inhabit a variety of freshwater rivers and lakes and are widely distributed throughout the western portion of the United States. Resident rainbow trout populations occupy interior freshwater environments for the entirety of life. Interior bodies of water are most susceptible to changes in environmental temperatures. Therefore, resident rainbow trout are likely to be impacted by variable and rising temperatures, particularly during embryonic development. Understanding temperature effects during development is likely to provide insight into the overall thermal biology of a species and its persistence in a changing climate. To assess the effect of temperature on development of rainbow trout, we examined phenotypes of hatchery embryos reared in various incubation temperatures (5°C, 10°C, 15°C and 17.5°C). To identify the presence of embryonic developmental plasticity within developmental time points, embryos incubated in 5°C were exposed to either 10°C, 15°C or 17.5°C during gastrulation, organogenesis, system integration or growth windows and a 3-dimensional critical window model was applied. An increase in constant incubation temperature increased oxygen consumption rate (V̇O2), and decreased hatchling survival, mass, yolk size, body length and time to 50% hatch. Thermally shifting embryos into increased temperature during distinct windows of development also reduced survival at hatch, and this was most evident following exposure during organogenesis, which may signify the presence of a critical window for this trait. Likewise, thermally shifting embryos into increased temperature resulted in smaller hatchlings. Although there was an initial increase in V̇ O2 in response to temperature, experiencing thermal shifts during development had no persistent effect on V̇ O2 when measured at hatch at 5°C compared to 5°C constant embryos. Collectively, these results suggest that survival and morphological traits of rainbow trout embryos are most sensitive to increased temperature during organogenesis and system integration, but increased temperature does not appear to have a long-term effect on energy use. Environmental temperature plays a fundamental role in developing aquatic vertebrates. Thus, critical window studies such this performed across species will eventually allow for the identification of commonalities in plasticity between different species in response to variables such as temperature.
Book Synopsis The Pathophysiology of Chloramine-T on Rainbow Trout Gills by : Mark D. Powell
Download or read book The Pathophysiology of Chloramine-T on Rainbow Trout Gills written by Mark D. Powell and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1990 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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