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Effects Of Temperature On The Routine Metabolic Rate Of Juvenile Shortnose Sturgeon Acipenser Brevirostrum
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Book Synopsis Effects of Temperature on the Routine Metabolic Rate of Juvenile Shortnose Sturgeon (acipenser Brevirostrum) by : Vasiliki R. Papadopoulos
Download or read book Effects of Temperature on the Routine Metabolic Rate of Juvenile Shortnose Sturgeon (acipenser Brevirostrum) written by Vasiliki R. Papadopoulos and published by . This book was released on 2011 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Temperature Effects on Green Sturgeon (Acipenser Medirostris Ayres) Bioenergetics by : Ryan Brogan Mayfield
Download or read book Temperature Effects on Green Sturgeon (Acipenser Medirostris Ayres) Bioenergetics written by Ryan Brogan Mayfield and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physiological and Molecular Responses of Juvenile Shortnose Sturgeon (Acipenser Brevirostrum) to Thermal Stress by : Yueyang Zhang
Download or read book The Physiological and Molecular Responses of Juvenile Shortnose Sturgeon (Acipenser Brevirostrum) to Thermal Stress written by Yueyang Zhang and published by . This book was released on 2015 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Researchers have studied the critical thermal maximum (CTMax) of a variety of teleost fish, but the thermal biology of sturgeon (ancient fish) has attracted little attention. The shortnose sturgeon (Acipenser brevirostrum LeSueur, 1818) is a vulnerable species that exists along the eastern coast of North America. The impact of heating rate (0.1, 0.2 and 0.25 °C/min) on the CTMax, associated hematological responses, stress response genes and oxygen consumption were determined. Heating rate did not alter the CTMax value of shortnose sturgeon. Neither heating rate nor thermal stress affected plasma sodium and chloride levels, or the expression of stress response genes, such as heat shock proteins. However, thermal stress (regardless of heating rate) increased both plasma potassium and lactate concentrations. Glucose levels were increased at heating rates of 0.2 and 0.25°C/min, but not at 0.1°C/min. Overall, oxygen consumption rates increased with thermal stress, but the response patterns were not affected by heating rate."--Leaf ii.
Book Synopsis Effects of Temperature and Diet on the Metabolic Phenotypes of Lake Sturgeon, Acipenser Fulvescens by : Gwangseok Yoon
Download or read book Effects of Temperature and Diet on the Metabolic Phenotypes of Lake Sturgeon, Acipenser Fulvescens written by Gwangseok Yoon and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environment during early life history strongly impacts phenotypic development in all organisms, which further influences developmental trajectory and ecological fitness later in life. Depending on the developmental stage and magnitude of change in the environment, phenotypes may become irreversible and thus have a long-lasting effect later in life. This thesis was designed to better understand how changes in the environment may influence plasticity and variation of metabolic phenotypes of Lake Sturgeon (Acipenser fulvescens) within the first year of life. Broadly speaking, the thesis tested two hypotheses that 1) all measured phenotypes would be plastic; and 2) durations of environmental effects on phenotypic development would be correlated with distinct developmental windows. Studies were developed to examine 1) short-term effects of temperature or diet on metabolic phenotypes such as metabolic rate, energy density, fatty acid profiles, and growth (Chapters 2 and 3) and 2) longer-term effects of temperature or diet during early life on these metabolic phenotypes (Chapters 4, 5 and 6). The first experimental chapter (Chapter 2) examined ontogenetic development of metabolic rate and demonstrated that dietary shifts between Artemia to bloodworm resulted in cessation of growth with elevated routine metabolic rate. Chapter 3 examined how fatty acid profiles and plasma cortisol concentration were influenced by environmental temperature and showed that decreasing temperature led to increases in mono- and polyunsaturated fatty acids in both phospholipids and triglycerides, and food deprivation resulted in lack of difference between baseline and peak cortisol concentrations. Chapter 4 examined how temperature during early life influenced plasticity of growth and showed that temperature post-dietary transition resulted in a transient effect on growth and energy metabolism without long-term effects post-winter. Chapter 5 examined how temperature during early life could influence growth and fatty acid metabolism when fish were exposed to colder temperatures later in life and demonstrated that elevated temperatures resulted in a longer-term effect on growth but lack of transcriptional responses of desaturating fatty acids when exposed to a cold temperature (3.5°C) later in life. The final experimental chapter, Chapter 6 examined longer-term effects of diet at the onset of exogenous feeding on metabolism and growth and demonstrated that an enriched diet resulted in prolonged effects on growth, digestive enzyme activity and survival prior to a simulated overwintering. This doctoral thesis research revealed that all measured metabolic phenotypes were plastic, but subtle changes in temperature and diet during early life history resulted in transient or prolonged effects on growth and metabolism in age-0 lake sturgeon. Results will aid our understanding of cohort and population dynamics as well as contribute to the development of conservation strategies for lake sturgeon, a species at risk or endangered across its natural range.
Book Synopsis The Effect of Temperature on the Growth of Juvenile Lake Sturgeon, Acipenser Fulvescens by : Kevin E. Wehrly
Download or read book The Effect of Temperature on the Growth of Juvenile Lake Sturgeon, Acipenser Fulvescens written by Kevin E. Wehrly and published by . This book was released on 1995 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acute Effects of Salinity on Juvenile Shortnose Sturgeon, Acipenser Brevirostrum by : Faith Penny
Download or read book Acute Effects of Salinity on Juvenile Shortnose Sturgeon, Acipenser Brevirostrum written by Faith Penny and published by . This book was released on 2015 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Sturgeons are a group of ancient fishes that have a wide range of ecological and evolutionary importance. Their mix of ancient and primitive fish traits makes them valuable subjects for comparative research. In nature, adult shortnose sturgeon, Acipenser brevirostrum, routinely experience a wide range of salinities, yet little is known of whether or how juveniles cope with salinity. This thesis describes the effects of short-term salinity exposure on the physiology of juvenile shortnose sturgeon. The first study describes metabolic, hormonal and haematological effects during a 24 h salinity challenge. The second study examines the potential whole-animal effects elicited by salinity exposure via recovery from exercise. The results of these experiments show that, while juvenile shortnose exhibit hydromineral imbalance (i.e. water loss, salt gains) and metabolic depression in high salinity in the first 24 h, these changes have little effect on the animals' ability to recover from exhaustive exercise. This is interesting as hydromineral imbalances have been shown to negatively affect swimming in other fishes. Overall, this thesis adds important information to the understanding of the basic biology of this primitive fish, and ecologically relevant information on the response of juvenile shortnose sturgeon to an important environmental factor."--Leaf ii.
Book Synopsis Effects of Temperature, Dissolved Oxygen and Substrate on the Development of Metabolic Phenotypes in Lake Sturgeon, Acipenser Fulvescens by : Gwangseok Yoon
Download or read book Effects of Temperature, Dissolved Oxygen and Substrate on the Development of Metabolic Phenotypes in Lake Sturgeon, Acipenser Fulvescens written by Gwangseok Yoon and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environment-phenotype interactions are significant particularly during early life history as they often dictate physiological performance, growth and ultimately ecological fitness of individuals. Temperature, dissolved oxygen and substrate are all important factors for developing metabolic phenotypes in fish. In this thesis, effects of temperature, dissolved oxygen (DO) and substrate on standard metabolic rate (SMR), forced maximum metabolic rate (FMR), metabolic scope (MS), energy density (ED), enzyme activity associated with ATP regeneration (pyruvate kinase, lactate dehydrogenase and cytochrome c oxidase), condition factor (K), hepatosomatic index (HSI) and critical thermal maxima (CTmax) of developing age-0 Lake Sturgeon, Acipenser fulvescens, including a simulated overwintering event, were examined. This research revealed that temperature, dissolved oxygen and substrate all significantly influenced development of metabolic phenotypes in Lake Sturgeon. While reduced temperature significantly increased SMR, increased temperature substantially decreased the survival rate. Lower DO (80%) did not impact FMR and MS in the short term, however, prolonged exposure to mild hypoxia, particularly during the stressful condition of overwintering, significantly reduced FMR and MS. Inclusion of substrate was found to significantly enhance K and SMR, and it was suggested that substrate be used at the early yolk-sac stage to enhance growth and survival. Further, a strong linear relationship between dry to wet mass ratio and ED was found, which can be used practically to estimate energetic status of Lake Sturgeon. This research provides information regarding environment-phenotype interaction during the first year of life in Lake Sturgeon. This information will contribute to a better understanding of critical factors influencing the successful recruitment of populations that are endangered throughout most of their natural range.
Book Synopsis Effects of Salinity on the Growth and Metabolism of Shortnose Sturgeon, Acipenser Brevirostrum by :
Download or read book Effects of Salinity on the Growth and Metabolism of Shortnose Sturgeon, Acipenser Brevirostrum written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Peter Lloyd Jarvis Publisher :National Library of Canada = Bibliothèque nationale du Canada ISBN 13 :9780612619135 Total Pages :124 pages Book Rating :4.6/5 (191 download)
Book Synopsis Effects of Salinity on the Growth and Metabolism of Shortnose Sturgeon, Acipenser Brevirostrum [microform] by : Peter Lloyd Jarvis
Download or read book Effects of Salinity on the Growth and Metabolism of Shortnose Sturgeon, Acipenser Brevirostrum [microform] written by Peter Lloyd Jarvis and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2001 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Lipid Sources and Temperature on the Critical Oxygen Level (Perit), Hypoxia Tolerance and Routine Metabolic Rate of Juvenile Yellowtail Kingfish (Seriola Lalandi) by : Caroline Lourdes Candebat
Download or read book Effect of Lipid Sources and Temperature on the Critical Oxygen Level (Perit), Hypoxia Tolerance and Routine Metabolic Rate of Juvenile Yellowtail Kingfish (Seriola Lalandi) written by Caroline Lourdes Candebat and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Social Behaviour, Competition and Interactions of Juvenile Shortnose Sturgeon (Acipenser Brevirostrum) and Atlantic Sturgeon (A. Oxyrhynchus) by : Alisha Victoria Giberson
Download or read book Social Behaviour, Competition and Interactions of Juvenile Shortnose Sturgeon (Acipenser Brevirostrum) and Atlantic Sturgeon (A. Oxyrhynchus) written by Alisha Victoria Giberson and published by . This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluating the Effects of Temperature on the Metabolic Rates of Two Sedentary Marine Fishes, the Bluebanded Goby, and the Woolly Sculpin by : Racine E. Rangel
Download or read book Evaluating the Effects of Temperature on the Metabolic Rates of Two Sedentary Marine Fishes, the Bluebanded Goby, and the Woolly Sculpin written by Racine E. Rangel and published by . This book was released on 2018 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Increasing variation in ocean temperature may affect the metabolism and energetic demands of many species. Understanding such effects is particularly important for sedentary species that cannot make large-scale movements in response to changes in environmental conditions. I examined how metabolic rates responded to temperature in the bluebanded goby (Lythrypnus dalli) and the Woolly Sculpin (Clinocottus analis). Oxygen consumption and metabolic rate increased significantly with temperature for both species, but L. dalli was much more sensitive to the effects of temperature than C. analis (Q 10 values were 5.21 and 3.02, respectively). Thermal fluctuations likely play a significant role in the ecology of these species and continued increases in seawater temperature will either necessitate an increase in foraging and food consumption or drive costly trade-offs between metabolism and processes such as growth and reproduction.
Book Synopsis Hot and Already Bothered by : Lindsay Potts
Download or read book Hot and Already Bothered written by Lindsay Potts and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Climate change has emerged as an increasingly critical threat to freshwater systems that may affect freshwater fishes through direct effects on their thermal physiology, but also indirectly by altering the magnitude of biotic interactions and/or the relative abundance of co-habiting species. Understanding the direct and indirect effects of temperature represents a significant knowledge gap that may be vital to effective conservation strategies for freshwater fishes. This is especially true for already imperiled species because these taxa tend to be more sensitive to changes in their environment and are already contending with other, and potentially interactive, stressors. In this thesis, I used a combination of ecophysiology and field-based techniques to examine effects of elevated water temperature on Pugnose Shiner, Notropis anogenus, an endangered fish species in Canada. In Chapter 1, I investigated effects of temperature on critical thermal maximum (CTmax) and standard metabolic rate (SMR) in juvenile Pugnose Shiner reared for 4 months across five different temperatures. CTmax was measured under normoxia and acute exposure to hypoxia to test for oxygen sensitivity of upper thermal limits in this species. CTmax increased with elevated water temperature. Agitation temperature (temperature at which fish show behavioural signs of thermal stress) also increased with rearing temperature and occurred on average 4.32°C above acclimation temperatures. CTmax was lower when fish were acutely exposed to hypoxia during CTmax trials and showed no increase between 19 and 25°C. Surprisingly, CTmax under acute hypoxia increased sharply at the highest temperature. SMR increased between 16 and 25°C, and then declined significantly at 28°C, indicating that the ability of Pugnose Shiner to reverse thermodynamic effects on SMR is limited and there was no evidence of long-term thermal compensation. Interestingly, gill size (e.g. total gill filament length, hemibranch area) increased with long-term exposure to high temperature, which may increase oxygen uptake capacity and help to fuel increased metabolic demands. In Chapter 2, I explored the role of temperature, other abiotic factors, and co-occurring species in shaping the fine-scale distribution of Pugnose Shiner within Thompson’s Bay in the upper St. Lawrence River, Ontario. Multivariate analyses and occupancy modelling were used to assess how environmental variables and species co-occurrence accounted for variation in the distribution of Pugnose Shiner. Environmental variables, including temperature, were significant predictors of community composition. Pugnose Shiner was associated with clear, cool sites far from the inner bay with high vegetation density, including Chara vulgaris. Pugnose Shiner was negatively associated with Brook Silverside (Labidesthes sicculus), Largemouth Bass (Micropterus salmoides), Pumpkinseed (Lepomis gibbosus), and juvenile Lepomis spp. This has important conservation implications because some native centrarchids are increasing in abundance with climate warming, which may threaten persistence of rare and imperiled cyprinids, including Pugnose Shiner. Although Pugnose Shiner showed little evidence of thermal compensation (SMR increased with acclimation temperature), it did show acclimation capacity in terms of thermal tolerance and increased gill size. Captive rearing may provide opportunities for thermal hardening in reintroduction efforts, and targeted hunting of expanding species may buffer Pugnose Shiner from the negative effects of elevated water temperature. Overall, my research highlights the importance of examining multiple traits at multiple scales of biological organization to quantify effects of elevated water temperature on freshwater fishes and guide conservation recommendations for imperiled species"--
Book Synopsis Sturgeons and Paddlefish of North America by : G.T.O LeBreton
Download or read book Sturgeons and Paddlefish of North America written by G.T.O LeBreton and published by Springer Science & Business Media. This book was released on 2006-01-20 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern North American sturgeons and paddlefish are the result of 100 million years of evolution. Once an integral part of aboriginal culture, their numbers were decimated by overfishing and habitat destruction during the past two centuries. This book details the extensive science aimed at helping these remarkable species recover from the brink of extinction, and describes the historical, biological, and ecological importance of North American sturgeon and paddlefish. The text is enhanced by photographs and detailed line drawings. This comprehensive volume will be an invaluable resource for researchers, educators, and consultants, in academic and government settings, who work to further scientific understanding of these fishes. No other single compilation has documented current information in such detail.
Book Synopsis An Introduction to Interdisciplinary Toxicology by : Carey N. Pope
Download or read book An Introduction to Interdisciplinary Toxicology written by Carey N. Pope and published by Academic Press. This book was released on 2020-03-06 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Interdisciplinary Toxicology: From Molecules to Man integrates the various aspects of toxicology, from "simple” molecular systems, to complex human communities, with expertise from a spectrum of interacting disciplines. Chapters are written by specialists within a given subject, such as a chemical engineer, nutritional scientist, or a microbiologist, so subjects are clearly explained and discussed within the toxicology context. Many chapters are comparative across species so that students in ecotoxicology learn mammalian toxicology and vice versa. Specific citations, further reading, study questions, and other learning features are also included. The book allows students to concurrently learn concepts in both biomedical and environmental toxicology fields, thus better equipping them for the many career opportunities toxicology provides. This book will also be useful to those wishing to reference how disciplines interact within the broad field of toxicology. Covers major topics and newer areas in toxicology, including nanotoxicology, Tox21, epigenetic toxicology, and organ-specific toxicity Includes a variety of perspectives to give a complete understanding of toxicology Written by specialists within each subject area, e.g., a chemical engineer, to ensure concepts are clearly explained
Book Synopsis Centrarchid Fishes by : Steven Cooke
Download or read book Centrarchid Fishes written by Steven Cooke and published by John Wiley & Sons. This book was released on 2009-09-08 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Centrarchid fishes, also known as freshwater sunfishes, include such prominent species as the Largemouth Bass, Smallmouth Bass and Bluegill. They are endemic to Eastern North America where they form part of a multi-million dollar sports fishing industry, but they have also been widely introduced around the globe by recreational anglers, in aquaculture programs and by government fisheries agencies. Centrarchid Fishes provides comprehensive coverage of all major aspects of this ecologically and commercially important group of fishes. Coverage includes diversity, ecomorphology, phylogeny and genetics, hybridization, reproduction, early life history and recruitment, feeding and growth, ecology, migrations, bioenergetics, physiology, diseases, aquaculture, fisheries management and conservation. Chapters have been written by well-known and respected scientists and the whole has been drawn together by Professors Cooke and Philipp, themselves extremely well respected in the area of fisheries management and conservation. Centrarchid Fishes is an essential purchase for all fish biologists, ecologists, fisheries managers and fish farm personnel who work with centrarchid species across the globe.
Book Synopsis Fish Migration and Fish Bypasses by : Mathias Jungwirth
Download or read book Fish Migration and Fish Bypasses written by Mathias Jungwirth and published by Wiley. This book was released on 1998-09-23 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Conference on Fish Migration and Bypass Channels held in Vienna in September 1996. It covers the range of fish pass technologies currently in use throughout the world and attempts to develop a wider, more ecological perspective on this formerly engineering-orientated discipline. Emphasis is placed on enhancing an understanding of fish migration behaviour, and achieving optimum design to meet the behavioural requirements of all known migratory species. Additional attention is paid to comparing the European trend towards constructing nature-like bypass channels with the highly technical solutions dominant in North America.
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