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Author : Kevin E. Wehrly
Publisher :
ISBN 13 :
Total Pages : 29 pages
Book Rating : 4.3/5 (91 download)
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:
Author : Ryan Brogan Mayfield
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (66 download)
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:
Author : Cheryl Klassen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book Growth Rate and Size Variability Among Juvenile Lake Sturgeon, Acipsenser Fulvescens written by Cheryl Klassen and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gwangseok Yoon
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
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.
Author : G.T.O LeBreton
Publisher : Springer Science & Business Media
ISBN 13 : 1402028334
Total Pages : 336 pages
Book Rating : 4.4/5 (2 download)
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.
Author : Catherine Brandt
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Early Environmental Effects on Growth Rate, Muscle Development, and Swimming Performance in Larval and Age-0 Lake Sturgeon, Acipenser Fulvescens written by Catherine Brandt and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In fishes, differences in egg incubation, water temperature, and substrate can have a significant impact on phenotypic development. This is particularly relevant during the first year of life when growth rate peaks and influences an individual's life history trajectory. In the present study, Lake Sturgeon, Acipenser fulvescens, were reared in different environments for approximately one year. In the first year, sturgeon were reared in 3 temperature regimes (with or without substrate) that mimicked hatchery conditions or river temperature profiles. In the second year, embryos were incubated in MacDonald jars or adhered to substrate and newly hatched larvae were reared in different thermal environments (16, 18 and 20°C) for two weeks during the first month post-hatch. All treatments were then transferred to a common garden set-up where tanks were fed by river water at ambient temperature and natural light cycles. Fish were deprived of food when water temperature reached 1.5°C, then food was re-introduced when water temperature exceeded 2°C, approximately 4.5 months later. Yolksac volumes, body length and mass were assessed during both years. In the first year, there were differences in yolk sac absorption between substrate treatments in the first two weeks post-hatch, and differences in larval length between temperature treatments following the overwintering. In the second year, red muscle fibre area and myonuclear counts were assessed and volitional downward swimming and forced escape responses were tested. Growth rate in the first three months of life was highest in the 20°C group of fish but converged in all treatments during winter. Growth rate in fish raised in warmer waters during early life once again exceeded cooler water treatments post-winter, suggesting growth phenotype was fixed in early life, showing little phenotypic plasticity, and was temperature dependent. Thus, increased growing temperature during early life history results in development of a fast-growing phenotype post the first winter. Overall, there was an absence of significant differences between results for muscle fibre area and myonuclear counts between incubation and temperature treatments and the presence of significant differences between time points indicating a strong evolutionary pressure to maintain plasticity in muscle structure and swimming performance.
Author : James Andrew Crossman
Publisher :
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.3/5 (129 download)
Download or read book Evaluating Collection, Rearing, and Stocking Methods for Lake Sturgeon (Acipenser Fulvescens) Restoration Programs in the Great Lakes written by James Andrew Crossman and published by . This book was released on 2008 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James S. Diana
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (527 download)
Download or read book Growth and Appetite of Juvenile Lake Sturgeon, Acipenser Fulvescens written by James S. Diana and published by . This book was released on 2003 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gwangseok Yoon
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
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.
Author : Patrick Williot
Publisher : Springer
ISBN 13 : 3319616765
Total Pages : 588 pages
Book Rating : 4.3/5 (196 download)
Download or read book The Siberian Sturgeon (Acipenser baerii, Brandt, 1869) Volume 2 - Farming written by Patrick Williot and published by Springer. This book was released on 2018-04-09 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Siberian sturgeon, Acipenser baerii Brandt 1869 is the most widely farmed sturgeon species. Continuing from Volume 1, which focuses on the biology of the species, the present Volume 2 in turn examines farming aspects. It is divided into six parts, the first of which deals with reproduction and early ontogenesis, i.e. reproductive cycles, controlled reproduction, sperm cryoconservation, and weaning of larvae. The second covers the growing phase with a focus on food and feeding (management, fish meal replacement, potential endocrine disruptions, usefulness of prebiotics and immunostimulants, and nitrogen excretion). Production-related data are the focus of the third part and include: characteristics (countries, structures of production, evolution in production, economic features) of the gross production of the species (meat and caviar) worldwide, a method for assessing the quality of caviars, off-flavors management, and an example of production of fingerlings for restocking. Part four addresses selected long-term management issues: genetic variability of brood stocks, genome manipulation and sex control, and the advantages of hybrids. The next three chapters constitute the fifth part, which is devoted to health status (immunology and welfare). In closing, the absence of ecological risks of introducing the species in non-native waters is shown using two long-term documented examples (Russia and France). Three methodological chapters round out the volume, covering: in vitro incubation of ovarian follicles, a richly illustrated library of echographies and photos, and a detailed presentation of oxygen demand studies.
Author : Michael Jonas Klein
Publisher :
ISBN 13 :
Total Pages : 312 pages
Book Rating : 4.:/5 (47 download)
Download or read book The Effect of Temperature and Diet on the Reproduction and Growth of the White Sturgeon, Acipenser Transmontanus written by Michael Jonas Klein and published by . This book was released on 1991 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Forrest Bjornson
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Competition and Risk Assessment of Juvenile Lake Sturgeon (acipenser Fulvescens) written by Forrest Bjornson and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hatchery supplementation of declining fish populations is often used as part of population enhancement and recovery programs. However, fish produced from the sterile hatchery environment often develop maladaptive behavioural phenotypes that can result in high post-release mortality. Lake Sturgeon (Acipenser fulvescens) are reared in hatcheries for conservation purposes, yet little is known of their early life behaviour. Here, I investigate the influence of body size on resource holding potential (RHP) and boldness, and the potential for predator conditioning to influence risk assessment and the physiology of juvenile Lake Sturgeon. Results indicate condition factor, rather than body size, increases RHP and bold responses in juvenile Lake Sturgeon. Additionally, conditioning did not influence risk assessment behaviour. However, foraging remained paramount, and chronic conditioning had an effect on whole body cortisol concentrations, suggesting a sensitive stress response. These results indicate the complex early life behaviour of juvenile Lake Sturgeon, both behaviourally and physiologically.
Author : S.S. Bell
Publisher : Springer Science & Business Media
ISBN 13 : 9401130760
Total Pages : 451 pages
Book Rating : 4.4/5 (11 download)
Download or read book Habitat Structure written by S.S. Bell and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: We conceived the idea for this book after teaching a graduate seminar on 'Habitat Complexity' at The University of South Florida. Discussions during the seminar led us to conclude that similar goals were to be found in studies of the topic that spanned the breadth of ecological research. Yet, the exact meaning of 'habitat structure', and the way in which it was measured, seemed to differ widely among subdisciplines. Our own research, which involves several sorts of ecology, convinced us that the differences among subdisciplines were indeed real ones, and that they did inhibit communica tion. We decided that interchange of ideas among researchers working in marine ecology, plant-animal interactions, physiological ecology, and other more-or-less independent fields would be worthwhile, in that it might lead to useful generalizations about 'habitat structure'. To foster this interchange of ideas. we organized a symposium to attract researchers working with a wide variety of organisms living in many habitats, but united in their interest in the topic of 'habitat structure'. The symposium was held at The University of South Florida's Chinsegut Hill Conference Center, in May. 1988. We asked participants to think about 'habitat structure' in new ways; to synthesize important, but fragmented, information; and. perhaps. to consider ways of translating ideas across systems. The chapters contained in this book reflect the participants' attempts to do so. The book is divided into four parts, by major themes that we have found useful categorizations.
Author :
Publisher :
ISBN 13 :
Total Pages : 570 pages
Book Rating : 4.E/5 ( download)
Download or read book Fisheries Research Report written by and published by . This book was released on 1995 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mananjo Jonahson
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (82 download)
Download or read book Movement of Juvenile Lake Sturgeon (Acipenser Fulvescens) in the Lower Genesee River, New York written by Mananjo Jonahson and published by . This book was released on 2010 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yuan Liang Wang
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (18 download)
Download or read book The Effect of Temperature on the Early Development of White Sturgeon and Lake Sturgeon written by Yuan Liang Wang and published by . This book was released on 1984 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Marty Holtgren
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (47 download)
Download or read book Movement, Habitat Utilization, and Diel Activity of Juvenile Lake Sturgeon Acipenser Fulvescens in Portage Lake and the Sturgeon River, Michigan written by J. Marty Holtgren and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
