Download or read book Disentangling Small Genetic Differences in Large Atlantic Herring Populations written by and published by . This book was released on 2008 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Molecular Ecology written by Gary R. Carvalho and published by IOS Press. This book was released on 1998 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each contributor to this publication was asked to examine how molecular genetic tools have contributed to their specific areas of consideration. To increase the practical utility of the book, a summary of software that is available for the anaylsis of data in molecular ecology is included.
Download or read book Adaptive and Neutral Genetic Variation in Spring and Fall spawning Herring Clupea Harengus L in the Northwest Atlantic written by Angela Patricia Fuentes Pardo and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the factors influencing the spatial distribution of intraspecific diversity is both a fundamental goal in evolutionary biology and necessary for the design of robust management strategies for harvested species. Intraspecific diversity can now be assessed using novel genomic techniques that enable the high-density screening of neutral and adaptive genetic variation. In this thesis, I used whole-genome resequencing of pooled DNA of Atlantic herring (Clupea harengus) to (i) identify patterns, genomic regions, evolutionary processes and environmental variables involved in the origin and maintenance of population divergence and local adaptation in the northwest Atlantic, and (ii) develop a diagnostic genetic tool that can inform conservation and fisheries management. I found fine-scale population structure in herring at putatively adaptive loci, despite low differentiation at neutrally evolving loci. Populations were distinguishable by spawning time and along a latitudinal cline defined by winter sea-surface temperature. Divergent selection leading to adaptation to seasonal reproduction and spawning at different latitudes is likely maintaining molecular divergence patterns for these traits in this environment. Each pattern was underpinned by thousands of outlier SNPs distributed in specific genomic regions spanning several candidate genes, some with a known role in the timing of reproduction (i.e. TSHR). Many spawning time-associated SNPs were shared with populations across the ocean, suggesting such adaptation predates the last glacial maximum. Finally, I developed and evaluated the efficacy of two cost-effective SNP-panels diagnostic of spawning season and latitudinal origin. Individual genotypes at these loci confirmed temporal stability of genetic differences among northern populations and between reproductive strategies despite their mixing outside of the spawning season, suggesting spawning time and site fidelity in ecological time scales. Admixture between reproductive and latitudinal components is unrestricted, and the proportion of admixed individuals vary across aggregations. Some individuals with intermediate admixture levels spawned in either season, suggesting that spawning time is not completely fixed. The analysis of mixture samples revealed the dynamic composition of aggregations outside of the breeding season and demonstrated the utility of the SNP-panels for mixed stock assessment. Altogether, these results contribute to the hypothesis that selection influences spatial distributions of genetic variation, highlighting the need to manage or conserve ecologically important adaptive variation in nature.
Download or read book Conservation and the Genomics of Populations written by Fred W. Allendorf and published by Oxford University Press. This book was released on 2022-02-10 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relentless loss of biodiversity is among the greatest problems facing the world today. The third edition of this established textbook provides an updated and comprehensive overview of the essential background, concepts, and tools required to understand how genetics can be used to conserve species, reduce threat of extinction, and manage species of ecological or commercial importance. This edition is thoroughly revised to reflect the major contribution of genomics to conservation of populations and species. It includes two new chapters: "Genetic Monitoring" and a final "Conservation Genetics in Practice" chapter that addresses the role of science and policy in conservation genetics. New genomic techniques and statistical analyses are crucial tools for the conservation geneticist. This accessible and authoritative textbook provides an essential toolkit grounded in population genetics theory, coupled with basic and applied research examples from plants, animals, and microbes. The book examines genetic and phenotypic variation in natural populations, the principles and mechanisms of evolutionary change, evolutionary response to anthropogenic change, and applications in conservation and management. Conservation and the Genomics of Populations helps demystify genetics and genomics for conservation practitioners and early career scientists, so that population genetic theory and new genomic data can help raise the bar in conserving biodiversity in the most critical 20 year period in the history of life on Earth. It is aimed at a global market of applied population geneticists, conservation practitioners, and natural resource managers working for wildlife and habitat management agencies. It will be of particular relevance and use to upper undergraduate and graduate students taking courses in conservation biology, conservation genetics, and wildlife management.
Download or read book Landscape Genetics written by Niko Balkenhol and published by John Wiley & Sons. This book was released on 2015-08-26 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the substantial interest in landscape genetics from the scientific community, learning about the concepts and methods underlying the field remains very challenging. The reason for this is the highly interdisciplinary nature of the field, which combines population genetics, landscape ecology, and spatial statistics. These fields have traditionally been treated separately in classes and textbooks, and very few scientists have received the interdisciplinary training necessary to efficiently teach or apply the diversity of techniques encompassed by landscape genetics. To address the current knowledge gap, this book provides the first in depth treatment of landscape genetics in a single volume. Specifically, this book delivers fundamental concepts and methods underlying the field, covering particularly important analytical methods in detail, and presenting empirical and theoretical applications of landscape genetics for a variety of environments and species. Consistent with the interdisciplinary nature of landscape genetics, the book combines an introductory, textbook like section with additional sections on advanced topics and applications that are more typical of edited volumes. The chapter topics and the expertise of the authors and the editorial team make the book a standard reference for anyone interested in landscape genetics. The book includes contributions from many of the leading researchers in landscape genetics. The group of scientists we have assembled has worked on several collaborative projects over the last years, including a large number of peer reviewed papers, several landscape genetics workshops at international conferences, and a distributed graduate seminar on landscape genetics. Based on the experiences gained during these collaborative teaching and research activities, the book includes chapters that synthesize fundamental concepts and methods underlying landscape genetics (Part 1), chapters on advanced topics that deserve a more in depth treatment (Part 2), and chapters illustrating the use of concepts and methods in empirical applications (Part 3). This structure ensures a high usefulness of the book for beginning landscape geneticists and experienced researchers alike, so that it has a broad target audience. At least one of the four co editors is involved in almost every chapter of the book, thereby ensuring a high consistency and coherency among chapters.
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.
Download or read book Stock Identification Methods written by Steven X. Cadrin and published by Academic Press. This book was released on 2013-10-04 with total page 589 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stock Identification Methods, 2e, continues to provide a comprehensive review of the various disciplines used to study the population structure of fishery resources. It represents the worldwide experience and perspectives of experts on each method, assembled through a working group of the International Council for the Exploration of the Sea. The book is organized to foster interdisciplinary analyses and conclusions about stock structure, a crucial topic for fishery science and management. Technological advances have promoted the development of stock identification methods in many directions, resulting in a confusing variety of approaches. Based on central tenets of population biology and management needs, this valuable resource offers a unified framework for understanding stock structure by promoting an understanding of the relative merits and sensitivities of each approach. - Describes 18 distinct approaches to stock identification grouped into sections on life history traits, environmental signals, genetic analyses, and applied marks - Features experts' reviews of benchmark case studies, general protocols, and the strengths and weaknesses of each identification method - Reviews statistical techniques for exploring stock patterns, testing for differences among putative stocks, stock discrimination, and stock composition analysis - Focuses on the challenges of interpreting data and managing mixed-stock fisheries
Download or read book Sustaining Marine Fisheries written by National Research Council and published by National Academies Press. This book was released on 1999-03-19 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluctuations and declines in marine fish populations have caused growing concern among marine scientists, fisheries managers, commercial and recreational fishers, and the public. Sustaining Marine Fisheries explores the nature of marine ecosystems and the complex interacting factors that shape their productivity. The book documents the condition of marine fisheries today, highlighting species and geographic areas that are under particular stress. Challenges to achieving sustainability are discussed, and shortcomings of existing fisheries management and regulation are examined. The volume calls for fisheries management to adopt a broader ecosystem perspective that encompasses all relevant environmental and human influences. Sustaining Marine Fisheries offers new approaches to building workable fisheries management institutions, improving scientific data, and developing management tools. The book recommends ways to change current practices that encourage overexploitation of fish resources. It will be of special interest to marine policymakers and ecologists, fisheries regulators and managers, fisheries scientists and marine ecologists, fishers, and concerned individuals.
Download or read book The Norwegian Sea Ecosystem written by Hein Rune Skjoldal and published by Fagbokforlaget. This book was released on 2004 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The Norwegian Sea Ecosystem' elucidates the interaction between the different ecological compartments of the area, with special emphasis on the most important pelagic fish stocks. It deals with mechanisms for ecosystem variability and discusses the challenge of an ecosystem approach to managing the area.
Download or read book Fish Reproductive Biology written by Tore Jakobsen and published by John Wiley & Sons. This book was released on 2016-03-21 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish recruitment is a key process for maintaining sustainable fish populations. In the marine environment, fish recruitment is carried out in many different ways, all of which have different life history strategies. The objective of this book is to argue for greater linkages between basic and applied research on fisheries recruitment, and assessment and management of exploited fish stocks. Following an introductory chapter, this second edition of Fish Reproductive Biology is organized into 3 main sections: Biology, Population Dynamics and Recruitment Information Critical to Successful Assessment and Management Incorporation of Reproductive Biology and Recruitment Considerations into Management Advice and Strategies The authors collectively bring a wide range of diverse experience in areas of reproductive biology, fisheries oceanography, stock assessment, and management. Fully updated throughout, the book will be of great interest to a wide audience. It is useful as a textbook in graduate and undergraduate courses in fisheries biology, fisheries science, and fisheries resource management and will provide vital information for fish biologists, fisheries scientists and managers.
Download or read book Biological Oceanography of the Baltic Sea written by Pauline Snoeijs-Leijonmalm and published by Springer Science & Business Media. This book was released on 2017-04-04 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive science-based textbook on the biology and ecology of the Baltic Sea, one of the world’s largest brackish water bodies. The aim of this book is to provide students and other readers with knowledge about the conditions for life in brackish water, the functioning of the Baltic Sea ecosystem and its environmental problems and management. It highlights biological variation along the unique environmental gradients of the brackish Baltic Sea Area (the Baltic Sea, Belt Sea and Kattegat), especially those in salinity and climate. pt;font-family:"Arial","sans-serif"; color:#262626">The first part of the book presents the challenges for life processes and ecosystem dynamics that result from the Baltic Sea’s highly variable recent geological history and geographical isolation. The second part explains interactions between organisms and their environment, including biogeochemical cycles, patterns of biodiversity, genetic diversity and evolution, biological invasions and physiological adaptations. In the third part, the subsystems of the Baltic Sea ecosystem – the pelagic zone, the sea ice, the deep soft sea beds, the phytobenthic zone, the sandy coasts, and estuaries and coastal lagoons – are treated in detail with respect to the structure and function of communities and habitats and consequences of natural and anthropogenic constraints, such as climate change, discharges of nutrients and hazardous substances. Finally, the fourth part of the book discusses monitoring and ecosystem-based management to deal with contemporary and emerging threats to the ecosystem’s health.
Download or read book Atlantic Cod written by George A. Rose and published by John Wiley & Sons. This book was released on 2019-02-26 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive handbook, covering all aspects of the Atlantic cod including the biology, ecology, life histories, behaviour, commercial exploitation and conservation Not only is Atlantic cod one of the most valuable food fish in the world’s oceans, it is an important component of North Atlantic ecosystems and has been subject to much research into its biology, ecology and exploitation. After hundreds of years of exploitation, overfishing in the last half of the 20th Century caused many stocks to collapse, most famously the Northern cod stock off Newfoundland and Labrador, Canada. Since then, most cod stocks have been better researched and managed, but remain in a variety of states, from fully recovered to continued decline. This book, written by world experts, describes that research and management, and the importance of cod and its fisheries on North Atlantic cultures and economies, with impacts well beyond the range of the species. Atlantic Cod: Bio-Ecology of the Fish offers insightful chapter coverage of cod nomenclature, taxonomy, phylogeny and morphology; physiology and ecophysiology; reproduction and spawning behavior; early life history and pre-recruitment processes; migrations, movements and stock identity; feeding, growth and energetics; the place of cod in the ecosystem; the exploitation of cod through history and present day commercial fisheries and precautionary management for sustainable fisheries; impacts of climate change on cod biology and ecology; and the future of the species and its fisheries. Discusses the major commercial importance of Atlantic cod through history Provides a comprehensive treatment of the bio-ecology of the most researched and highly exploited fully marine species Examines how the decline (and recovery) of cod stocks is of great political and scientific interest An essential purchase for marine fisheries scientists Atlantic Cod: Bio-Ecology of the Fish is a vital book for all fisheries scientists, managers and fish biologists.
Download or read book Parasite Diversity and Diversification written by Serge Morand and published by Cambridge University Press. This book was released on 2015-02-26 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: By joining phylogenetics and evolutionary ecology, this book explores the patterns of parasite diversity while revealing diversification processes.
Download or read book Fish Population Structure written by Fisheries Society of the British Isles. Symposium and published by . This book was released on 2006 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Disease Ecology written by Kenneth Wilson and published by Cambridge University Press. This book was released on 2019-11-14 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces readers to key case studies that illustrate how theory and data can be integrated to understand wildlife disease ecology.
Download or read book The Cardiovascular System written by and published by Academic Press. This book was released on 1992-10-16 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book and its companion, Fish Physiology, Volume 12, Part B, are the first major syntheses of recent advances, general concepts, and species diversity of fish in almost 25 years. It provides broad coverage of the major aspects of cardiovascular physiology and is a definitive sourcebook for the field. This book discusses the special design of the venous system in aquatic vertebrates, reviews the nature of the secondary circulation in fish, and discusses the probable absence of the lymphatic system. It is of value to teachers in comparative physiology as well as to the researcher.
Download or read book Mechanisms of Adaptation written by J.R. Spkatch and published by Elsevier. This book was released on 2014-04-24 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bacteria: Volume VII: Mechanisms of Adaptation explores the mechanisms of bacterial adaptations and covers topics ranging from bacterial spores, cysts, and stalks to nitrogen fixation, bacterial chemotaxis, bacteriophage growth, and the structure and biosynthesis of bacterial cell walls. The roles of appendages and surface layers in adaptation of bacteria to their environment are also considered, along with cell division in Escherichia coli. This volume is comprised of nine chapters and begins with a discussion on the structure, properties, formation, and regulation of spores, cysts, and stalks in actinomycetes, blue-green bacteria, myxobacteria, Bacillus, Azotobacter, and Caulobacter. The reader is then introduced to the biochemistry, regulation, genetics, and evolution of nitrogen fixing in organisms; the receptors involved in bacterial chemotaxis and the nature of the sensing mechanism; the outer membrane of gram-negative bacteria; and bacterial functions involved in nutrient detection and acquisition. The roles played by organelles and surface layers in the adaptation of bacteria to their environment are also examined. The final chapter deals with the regulation of, and coordination between, the multitude of events involved in cell division in Escherichia coli. This monograph will be a useful resource for microbiologists, bacteriologists, biochemists, and biologists.
