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Physiological Assessment Of Wild And Hatchery Juvenile Salmonids
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Book Synopsis Physiological Assessment of Wild and Hatchery Juvenile Salmonids by :
Download or read book Physiological Assessment of Wild and Hatchery Juvenile Salmonids written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally held that hatchery-reared salmonids are of inferior quality and have lower smolt-to-adult survival compared to naturally-reared salmon. The overall objectives of the work performed under this contract were the following: (1) Characterize the physiology and development of naturally rearing juvenile salmonids to: (2) Allow for the design of effective rearing programs for producing wild-like smolts in supplementation and production hatchery programs. (3) Examine the relationship between growth rate and size on the physiology and migratory performance of fish reared in hatchery programs. (4) Examine the interaction of rearing temperature and feed rate on the growth and smoltification of salmon for use in producing a more wild-like smolt in hatchery programs.
Book Synopsis Physiological Assessment and Behavioral Interaction of Wild and Hatchery Juvenile Salmonids by : Brian R. Beckmen
Download or read book Physiological Assessment and Behavioral Interaction of Wild and Hatchery Juvenile Salmonids written by Brian R. Beckmen and published by . This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Covering the Courts written by and published by . This book was released on 1998 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological Assessment of Wild and Hatchery Juvenile Salmonids by :
Download or read book Physiological Assessment of Wild and Hatchery Juvenile Salmonids written by and published by . This book was released on 2003 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally held that hatchery-reared salmonids are of inferior quality and have lower smolt-to-adult survival compared to naturally-reared salmon. The overall objectives of the work performed under this contract were the following: (1) Characterize the physiology and development of naturally rearing juvenile salmonids to: (2) Allow for the design of effective rearing programs for producing wild-like smolts in supplementation and production hatchery programs. (3) Examine the relationship between growth rate and size on the physiology and migratory performance of fish reared in hatchery programs. (4) Examine the interaction of rearing temperature and feed rate on the growth and smoltification of salmon for use in producing a more wild-like smolt in hatchery programs.
Book Synopsis An Assessment of Lower Snake River Hydrosystem Alternatives on Survival and Recovery of Snake River Salmonids: Appendix ___to the U.S. Army Corps of Engineers' Lower Snake River Juvenile Salmonid Migration Feasibility Study. by : Northwest Fisheries Science Center (U.S.)
Download or read book An Assessment of Lower Snake River Hydrosystem Alternatives on Survival and Recovery of Snake River Salmonids: Appendix ___to the U.S. Army Corps of Engineers' Lower Snake River Juvenile Salmonid Migration Feasibility Study. written by Northwest Fisheries Science Center (U.S.) and published by DIANE Publishing. This book was released on 2001 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Physiology of Developing Fish: Viviparity and Posthatching Juveniles by :
Download or read book The Physiology of Developing Fish: Viviparity and Posthatching Juveniles written by and published by Academic Press. This book was released on 1988-04-15 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: FROM THE PREFACE: Dramatic changes occur in the physiology of most animals during their development. Among the vertebrates, birds are entirely oviparous, live for variable periods in a cleidoic egg, and show fundamental alterations in excretion, nutrition, and respiration at the time of hatching. In contrast, the eutherian mammals are all viviparous, depend on the maternal circulation and a specialized placenta to provide food, exchange gases, and discharge wastes. The physiology of both mother and fetus is highly specialized during gestation and changes fundamentally at the time of birth. Fishes exemplify both the oviparous and the viviparous modes of development, with some examples that are intermediate between the two. In these two volumes, selected reviews of many, but not all, aspects of development are presented. The chapters in Part A relate to the physiology of eggs and larvae; those in Part B concern viviparity and the physiology of posthatching juvenile fishes.
Book Synopsis Juvenile Salmonid Production Evaluation Report by :
Download or read book Juvenile Salmonid Production Evaluation Report written by and published by . This book was released on 2005 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Green River Juvenile Salmonid Production Evaluation by :
Download or read book Green River Juvenile Salmonid Production Evaluation written by and published by . This book was released on 2003 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analyzing Behavioral and Physiological Changes During Salmonid Domestication by : Gary H. Thorgaard
Download or read book Analyzing Behavioral and Physiological Changes During Salmonid Domestication written by Gary H. Thorgaard and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hatchery rearing has become an important tool for supplementing declining salmonid populations. However, there is considerable concern that captive-rearing may result in divergence from the wild phenotype through genetic drift, artificial selection, and adaptation to captivity. Such changes could impair survival of hatchery fish after release. In addition, introgression of maladaptive alleles could threaten native wild populations. We performed a series of experiments to compare behavior and stress physiology between hatchery and hybrid hatchery X wild families of steelhead trout and chinook salmon. In the first experiment, we observed orientation in the water column, activity levels, feeding behavior, and startle behavior but detected no significant differences between hatchery and hybrid families of steelhead trout and chinook salmon. In the second experiment, we detected no difference in aggression level or dominance between hatchery and hybrid families of chinook salmon. In the final experiment, we detected no difference in whole body levels of cortisol in chinook salmon families in response to brief exposure to a predator model. The lack of significant differences suggests that behavior patterns and stress physiology of the hatchery populations that we studied have changed little in response to captive rearing as compared to populations under intense aquaculture. However, shortcomings in our experimental protocols likely affected our ability to detect differences if they exist. The contribution of the hatchery female to the hybrid wild families may have masked wild traits through dominance. Also the statistical power of the experiment could have been improved by including a higher number of families from each population. We conclude with suggestions for applying the protocols from these experiments towards monitoring hatchery populations for domestication.
Download or read book Federal Register written by and published by . This book was released on 1992-05-08 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fish Larval Physiology by : Roderick Nigel Finn
Download or read book Fish Larval Physiology written by Roderick Nigel Finn and published by CRC Press. This book was released on 2020-04-30 with total page 741 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as a resource for students and researchers interested in developmental biology and physiology and specifically addresses the larval stages of fish. Fish larvae (and fish embryos) are not small juveniles or adults. Rather they are transitionary organisms that bridge the critical gap between the singlecelled egg and sexually immature juvenile. Fish larvae represent the stage of the life cycle that is used for differentiation, feeding and distribution. The book aims at providing a single-volume treatise that explains how fish larvae develop and differentiate, how they regulate salt, water and acid-base balance, how they transport and exchange gases, acquire and utilise energy, how they sense their environment, and move in their aquatic medium, how they control and defend themselves, and finally how they grow up.
Book Synopsis Physiological Changes Associated with the Diadromous Migration of Salmonids by : Helga Rachel Høgåsen
Download or read book Physiological Changes Associated with the Diadromous Migration of Salmonids written by Helga Rachel Høgåsen and published by NRC Research Press. This book was released on 1998 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents and discusses present knowledge concerning the diadromous migration of salmonids. It groups elements ranging from ecology to cell biology, to provide the reader background knowledge for critical understanding of published literature and for design of experiments.
Book Synopsis Canadian Journal of Fisheries and Aquatic Sciences by :
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2008 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physiological Ecology of Pacific Salmon by : Cornelis Groot
Download or read book Physiological Ecology of Pacific Salmon written by Cornelis Groot and published by UBC Press. This book was released on 2010-10-01 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every year, countless juvenile Pacific salmon leave streams and rivers on their migration to feeding grounds in the North Pacific Ocean and the Bering Sea. After periods ranging from a few months to several years, adult salmon enter rivers along the coasts of Asia and North America to spawn and complete their life cycle. Within this general outline, various life history patterns, both among and within species, involve diverse ways of exploiting freshwater, estuarine, and marine habitats. There are seven species of Pacific salmon. Five (coho, chinook chum, pink, and sockeye) occur in both North America and Asia. Their complex life histories and spectacular migrations have long fascinated biologists and amateurs alike. Physiological Ecology of Pacific Salmon provides comprehensive reviews by leading researchers of the physiological adaptations that allow Pacific Salmon to sustain themselves in the diverse environments in which they live. It begins with an analysis of energy expenditure and continues with reviews of locomotion, growth, feeding, and nutrition. Subsequent chapters deal with osmotic adjustments enabling the passage between fresh and salt water, nitrogen excretion and regulation of acid-base balance, circulation and gas transfer, and finally, responses to stress. This thorough and authoritative volume will be a valuable reference for students and researchers of biology and fisheries science as they seek to understand the environmental requirements for the perpetuation of these unique and valuable species.
Book Synopsis Research and Development Report by : United States. Bonneville Power Administration
Download or read book Research and Development Report written by United States. Bonneville Power Administration and published by . This book was released on 1993 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fisheries and Wildlife Research by :
Download or read book Fisheries and Wildlife Research written by and published by . This book was released on 1980 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report on activities in the divisions of research.
Book Synopsis Conservation Physiology for the Anthropocene - A Systems Approach by :
Download or read book Conservation Physiology for the Anthropocene - A Systems Approach written by and published by Academic Press. This book was released on 2022-10-21 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation Physiology for the Anthropocene: A Systems Approach, Volume 39A in the Fish Physiology series, is a comprehensive synthesis on the physiology of fish in the Anthropocene. This volume closes the knowledge gap by considering the many ways in which different physiological systems (e.g., sensory physiology, endocrine, cardio-respiratory, bioenergetics, water and ionic balance and homeostasis, locomotion/biomechanics, gene function) and physiological diversity are relevant to management and conservation. As the world is changing, with a dire need to identify solutions to the many environmental problems facing wild fish populations, this book comprehensively covers conservation physiology and its future techniques. Conservation physiology reveals the many ways in which environmental change and human activities can negatively influence wild fish populations. These tactics inform new management and conservation activities and help create the necessary conditions for fish to thrive. Presents authoritative contributions from an international board of authors, each with extensive expertise in the conservation physiology of fish Provides the most up-to-date information on the ways in which different physiological systems are relevant to the management and conservation of fish and fisheries Identifies how anthropogenic stressors perturb physiological systems Explores how different physiological systems can be exploited to solve conservation problems
