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Using Stock Specific Thermal Physiology To Simulate In River Mortality Of Fraser River Sockeye Salmon
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Book Synopsis Using Stock-Specific Thermal Physiology to Simulate In-River Mortality of Fraser River Sockeye Salmon by : Jennifer Karen Carter
Download or read book Using Stock-Specific Thermal Physiology to Simulate In-River Mortality of Fraser River Sockeye Salmon written by Jennifer Karen Carter and published by . This book was released on 2014 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annual estimates of mortality en-route to spawning grounds for certain populations of Fraser River Sockeye salmon (Oncorhynchus nerka) can routinely exceed 50% posing challenges for harvest management and salmon conservation. High estimates of mortality are also correlated with high migration temperatures, suggesting temperature is one of the main factors. However, these estimates of apparent mortality are uncertain as they currently rely on discrepancies between up-river spawning ground estimates and lower river escapement estimates adjusting for estimates of in-river catch. Therefore, applying thermal physiology may serve as a tool to explain the potential contribution temperature-related mortality could have in calculating annual apparent mortality estimates for specific populations. I incorporated short- and long-term mortality functions based on population-specific aerobic scope temperature thresholds and an aggregate accumulation of degree-days threshold to a simulation model to estimate en-route mortality associated with temperature exposure for six Fraser River Sockeye salmon populations: Early Stuart, Gates Creek, Stellako, Chilko, and Weaver Creek. I compared simulated temperature based mortality rates to apparent mortality estimates (i.e. difference between estimates) and tested model sensitivity to uncertainty in short- and long-term LD50, arrival timing, and movement rate parameters. Results show that high temperature is likely a key driver of large en-route loss as both simulated mortality and apparent mortality estimates were higher in warmer years and lower in cooler years. I attribute the simulated mortality rates being generally lower than apparent mortality to the role that other sources of mortality can play (e.g. source error, high discharge). Simulated mortality rates were most sensitive to the short-term LD50 parameter, followed by the long-term LD50 and arrival timing parameters. However, simulated mortality rates were not sensitive to changes in movement rates. The model can explain temperature-related population-specific differences in apparent mortality between co-migrating populations (e.g., up to 80% absolute differences between Chilko and co-migrating populations) and provides evidence that these differences are driven by differences in aerobic scope. My results could inform managers of the relative importance of key parameters (short- and long-term mortality, and arrival timing) when estimating population-specific temperature-related mortality.
Book Synopsis Prespawning Mortalities of Sockeye Salmon in the Fraser River System and Possible Causal Factors by : Philip Gilhousen
Download or read book Prespawning Mortalities of Sockeye Salmon in the Fraser River System and Possible Causal Factors written by Philip Gilhousen and published by . This book was released on 1990 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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
Book Synopsis Evaluating the Impact of Variable en Route Mortality on Spatially Varying Harvest Strategies for Fraser River Sockeye (Oncorhynchus Nerka) by : Angus Straight
Download or read book Evaluating the Impact of Variable en Route Mortality on Spatially Varying Harvest Strategies for Fraser River Sockeye (Oncorhynchus Nerka) written by Angus Straight and published by . This book was released on 2021 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single stock terminal fisheries for Fraser River sockeye salmon (Oncorhynchus nerka) have been proposed as an alternative to lower-river mixed-stock fisheries to avoid weak stocks and support terminal allocation objectives. However, increasing natural mortality rates during the upriver migration (en route mortality) have been overlooked when evaluating alternative harvest strategies. I used a spatially explicit, individual based model of sockeye migration and fisheries to examine how fishery location options affect management performance under variable en route mortality scenarios and a fixed total catch objective. Under all scenarios tested, re-distributing a fixed total harvest from lower-river mixed-stock to multiple upper-river single stock terminal fisheries resulted in increased en route mortality, decreased spawner abundance, and, in most cases, reduced total catch. While lower-river mixed-stock fisheries performed better at meeting a fixed catch objective under the scenarios in my analysis, single stock terminal fisheries may be preferable for meeting other objectives.
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 2012 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pacific Salmon Life Histories by : Cornelis Groot
Download or read book Pacific Salmon Life Histories written by Cornelis Groot and published by UBC Press. This book was released on 1991 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pacific salmon are an important biological and economic resource of countries of the North Pacific rim. They are also a unique group of fish possessing unusually complex life histories. There are seven species of Pacific salmon, five occurring on both the North American and Asian continents (sockeye, pink, chum, chinook, and coho) and two (masu and amago) only in Asia. The life cycle of the Pacific salmon begins in the autumn when the adult female deposits eggs that are fertilized in gravel beds in rivers or lakes. The young emerge from the gravel the following spring and will either migrate immediately to salt water or spend one or more years in a river or lake before migrating. Migrations in the ocean are extensive during the feeding and growing phase, covering thousands of kilometres. After one or more years the maturing adults find their way back to their home river, returning to their ancestral breeding grounds to spawn. They die after spawning and the eggs in the gravel signify a new cycle. Upon this theme Pacific salmon have developed many variations, both between as well as within species. Pacific Salmon Life Histories provides detailed descriptions of the different life phases through which each of the seven species passes. Each chapter is written by a scientist who has spent years studying and observing a particular species of salmon. Some of the topics covered are geographic distribution, transplants, freshwater life, ocean life, development, growth, feeding, diet, migration, and spawning behaviour. The text is richly supplemented by numerous maps, illustrations, colour plates, and tables and there is a detailed general index, as well as a useful geographical index.
Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2009-05 with total page 418 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.
Download or read book Oceanic Abstracts with Indexes written by and published by . This book was released on 1978 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Vertebrate Red Blood Cells by : Mikko Nikinmaa
Download or read book Vertebrate Red Blood Cells written by Mikko Nikinmaa and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the respiratory function of vertebrate red cells. I have defined the phrase "respiratory function" broadly to include, in addition to the actual oxygen and carbon dioxide transport, erythropoiesis, haemoglobin synthesis, red cell structure, the deformability of red cells in circulation, ion and substrate transport across the cell membrane, cellular metabolism, and control of cellular volume and pH. All of these aspects of the red cell function may affect gas transport between the respiratory epithelia and the tissues. Throughout the book, I have tried to relate our current knowledge about the nucleated red cell function to the wealth of information about the function of mammalian red cells. However, whenever possible, I have placed the emphasis on the nucleated red cell function for two reasons. First, the erythro cytes of 90% of vertebrate species are nucleated, and, second, nucleated red cell function has not been reviewed earlier in a single volume. This being the case, I have tried to make the reference list as complete as I could with regard to nucleated red cells. I hope that the approach adopted is useful for both com parative and human physiologists. Many people have contributed to the making of this book directly or in directly. Antti Soivio started me in this field. Prof. Henrik Wallgren has always encouraged fresh scientific ideas in his department. My present ideas of red cell function have been influenced by work carried out with Prof. Roy E.
Book Synopsis Fish Respiration by : Steve F. Perry
Download or read book Fish Respiration written by Steve F. Perry and published by Academic Press. This book was released on 1998-07-06 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish Respiration synthesizes classical literature and highlights recent developments pertaining to the respiratory physiology of fishes. Compiled by a team of international researchers, this comprehensive and authoritative review of the respiratory physiology of fishes will appeal to any comparative physiologist interested in this subject. First volume in the series dedicated solely to the respiratory system Contributors are world leaders in their respective areas Includes completely up-to-date material on the topic of fish physiology
Download or read book Fish Energetics written by Peter Tytler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is almost thirty years since Professor G. G. Winberg established the basis for experimental studies in fish energetics with the publication of his monograph, Rate of Metabolism and Food Requirements of Fishes. His ultimate aim was to develop a scientific approach to fish culture and management, and the immense volume of literature generated in the ensuing years has been mainly in response to the demand for information from a rapidly expanding, world-wide aquaculture industry and to the shortcomings of contemporary practices in fisheries management. The purpose of this book is not to review this literature compre hensively, but, assuming an informed readership, to focus attention on topics in which new knowledge and theory are beginning to be applied in practice. Most emphasis has been placed on food; feeding; production (growth and reproduction) and energy budgeting, as these have most influence on the development of fish culture. Some chapters offer practical advice for the selection of methods, and warn of pitfalls in previous approaches. In others the influence of new theory on the interpretation of studies in fish energetics is discussed in the context of resource allocation and adaptation. We hope that the scope of material presented here will have sufficient interest and value to help significantly to fulfil Winberg's original objectives.
Book Synopsis Biology of Stress in Fish by : Carl B. Schreck
Download or read book Biology of Stress in Fish written by Carl B. Schreck and published by Academic Press. This book was released on 2016-11-01 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology of Stress in Fish: Fish Physiology provides a general understanding on the topic of stress biology, including most of the recent advances in the field. The book starts with a general discussion of stress, providing answers to issues such as its definition, the nature of the physiological stress response, and the factors that affect the stress response. It also considers the biotic and abiotic factors that cause variation in the stress response, how the stress response is generated and controlled, its effect on physiological and organismic function and performance, and applied assessment of stress, animal welfare, and stress as related to model species. Provides the definitive reference on stress in fish as written by world-renowned experts in the field Includes the most recent advances and up-to-date thinking about the causes of stress in fish, their implications, and how to minimize the negative effects Considers the biotic and abiotic factors that cause variation in the stress response
Book Synopsis Klamath River Fish Die-off, September 2002 by : George Guillen
Download or read book Klamath River Fish Die-off, September 2002 written by George Guillen and published by . This book was released on 2003 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration of Freshwater Fishes by : Martyn Lucas
Download or read book Migration of Freshwater Fishes written by Martyn Lucas and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent studies have increasingly demonstrated the widespread existence of spatio-temporal variations in the abundance and distribution of species of freshwater fishes, previously assumed not to move between habitats. These movements are often on a seasonal or ontogenetic basis, for spawning, feeding and refuge, and in many cases are fundamental for the successful completion of lifecycles. This important book provides a single source for a range of previously widely dispersed information on these movements of fish in fresh waters, covering potamodromous fishes as well as the more familiar diadromous species, worldwide. Contents include full descriptions of types of migration and spatial behaviour, the stimulus and capacity for fish to migrate, the effects of climate on patterns of migratory behaviour, a taxonomic analysis (mostly by family) of freshwater fish migration, methods for studying migration, and details of the impacts of man's activities on freshwater fish migration. Migration of Freshwater Fishes provides an excellent and comprehensive reference to which the river manager, biologist or student can now refer to obtain information, advice and current opinion on the migratory behaviour of most taxonomic groups of fishes occurring in fresh water. University libraries and aquatic research stations should also have copies of this essential reference book on their shelves. Well-known international authors. Of great commercial importance to fisheries and professional angling bodies. Draws together much new information in one place. Detailed review of world wide migratory behaviour for most groups of freshwater fishes. Pure and applied relevance, for academics, fisheries scientists, river managers and conservationists. This comprehensive book includes 67 tables and figures and over 1,400 references.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251306079 Total Pages :654 pages Book Rating :4.2/5 (513 download)
Book Synopsis Impacts of climate change on fisheries and aquaculture by : Food and Agriculture Organization of the United Nations
Download or read book Impacts of climate change on fisheries and aquaculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-01-06 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report indicates that climate change will significantly affect the availability and trade of fish products, especially for those countries most dependent on the sector, and calls for effective adaptation and mitigation actions encompassing food production.
Download or read book Global Warming written by C. M. Wood and published by Cambridge University Press. This book was released on 1997-05-13 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global warming and climate change are growing environmental concerns which are much in the scientific, governmental and public eye. The potential impact on freshwater and marine fishes is immense, because most fish have no physiological ability to regulate their body temperature. This volume focuses on the effects of temperature at all levels of organization in fish, with particular emphasis on physiological function: cells, epithelia, organ systems, the whole organism, reproduction, behaviour, pollutant interactions, ecology and population dynamics, with each chapter written by experts in the field. Many chapters also speculate on the long-term physiological and ecological implications to fish of a 2-4°C global warming scenario. Researchers and graduate students in the areas of animal physiology and behaviour, environmental toxicology, population ecology and fisheries biology and management will find this volume of particular interest.
