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Influence of Streamflow and Predators on Habitat Choice by Trout

Influence of Streamflow and Predators on Habitat Choice by Trout PDF Author: Elizabeth Ann Campbell
Publisher:
ISBN:
Category :
Languages : en
Pages : 360

Book Description


Influence of Streamflow and Predators on Habitat Choice by Trout

Influence of Streamflow and Predators on Habitat Choice by Trout PDF Author: Elizabeth Ann Campbell
Publisher:
ISBN:
Category :
Languages : en
Pages : 360

Book Description


Environmental Flow Assessment

Environmental Flow Assessment PDF Author: John G. Williams
Publisher: John Wiley & Sons
ISBN: 1119217369
Category : Science
Languages : en
Pages : 236

Book Description
Provides critiques of current practices for environmental flow assessment and shows how they can be improved, using case studies. In Environmental Flow Assessment: Methods and Applications, four leading experts critique methods used to manage flows in regulated streams and rivers to balance environmental (instream) and out-of-stream uses of water. Intended for managers as well as practitioners, the book dissects the shortcomings of commonly used approaches, and offers practical advice for selecting and implementing better ones. The authors argue that methods for environmental flow assessment (EFA) can be defensible as well as practicable only if they squarely address uncertainty, and provide guidance for doing so. Introductory chapters describe the scientific and social reasons that EFA is hard, and provide a brief history. Because management of regulated streams starts with understanding freshwater ecosystems, Environmental Flow Assessment: Methods and Applications includes chapters on flow and organisms in streams. The following chapters assess standard and emerging methods, how they should be tested, and how they should (or should not) be applied. The book concludes with practical recommendations for implementing environmental flow assessment. Describes historical and recent trends in environmental flow assessment Directly addresses practical difficulties with applying a scientifically informed approach in contentious circumstances Serves as an effective introduction to the relevant literature, with many references to articles in related scientific fields Pays close attention to statistical issues such as sampling, estimation of statistical uncertainty, and model selection Includes recommendations for methods and approaches Examines how methods have been tested in the past and shows how they should be tested today and in the future Environmental Flow Assessment: Methods and Applications is an excellent book for biologists and specialists in allied fields such as engineering, ecology, fluvial geomorphology, environmental planning, landscape architecture, along with river managers and decision makers.

Influence of Flow and Predation on Juvenile Trout Behavior and Habitat Use

Influence of Flow and Predation on Juvenile Trout Behavior and Habitat Use PDF Author: Elizabeth A. Campbell
Publisher:
ISBN:
Category : Trout
Languages : en
Pages : 88

Book Description


Dissertation Abstracts International

Dissertation Abstracts International PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 636

Book Description


American Doctoral Dissertations

American Doctoral Dissertations PDF Author:
Publisher:
ISBN:
Category : Dissertation abstracts
Languages : en
Pages : 784

Book Description


Contributions to the Biology of Central Valley Salmonids: Chinook salmon in the lower American River, California's largest urban stream

Contributions to the Biology of Central Valley Salmonids: Chinook salmon in the lower American River, California's largest urban stream PDF Author: Randall L. Brown
Publisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 380

Book Description


Brown Trout

Brown Trout PDF Author: Javier Lobón-Cerviá
Publisher: John Wiley & Sons
ISBN: 1119268311
Category : Technology & Engineering
Languages : en
Pages : 821

Book Description
Brown Trout: Biology, Ecology and Management A comprehensive guide to the most current research, history, genetics and ecology of the brown trout including challenging environmental problems The brown trout is an iconic species across its natural European distribution and has been introduced throughout the World. Brown Trout offers a comprehensive review of the scientific information and current research on this major fish species. While the brown trout is the most sought species by anglers, its introduction to various waters around the world is causing serious environmental problems. At the same time, introduction of exogenous brown trout lineages threats conservation of native gene pools of populations in many regions. The authors summarize the important aspects of the brown trout’s life history and ecology and focus on the impact caused by the species. The text explores potential management strategies in order to maintain numerous damaged populations within its natural distributional range and to ameliorate its impacts in exotic environments. The authors include information on a wide-range of topics such as recent updates in population genetics, evolutionary history, reproductive traits and early ontogeny, life history plasticity in anadromous brown trout and life history of the adfluvial brown trout and much more. This vital resource: Contains the latest research on the biology and ecology of brown trout Includes information on phylogeography, genetics, population dynamics and stock management Spotlights the brown trout’s introduction to regions around the world and the serious environmental impacts Offers a comprehensive review of conservation and management techniques Written for salmonid scientists and researchers, fishery and environmental managers, and students of population genetics, ecology and population dynamics, Brown Trout explores the most recent findings on the history, ecology and sustainability of this much-researched species.

Ecology of Atlantic Salmon and Brown Trout

Ecology of Atlantic Salmon and Brown Trout PDF Author: Bror Jonsson
Publisher: Springer Science & Business Media
ISBN: 9400711891
Category : Science
Languages : en
Pages : 720

Book Description
Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.

Biology and Ecology of the Brown and Sea Trout

Biology and Ecology of the Brown and Sea Trout PDF Author: J. L. Bagliniere
Publisher: Springer Science & Business Media
ISBN: 1447107756
Category : Science
Languages : en
Pages : 286

Book Description
This book contains a collection of 24 state-of-the-art contributions in the area of Information Systems Engineering. It was compiled as a tribute to Professor Janis Bubenko on the occasion of his retirement from the University of Stockholm in February 2000. The contributions are arranged in three sections: - Information Society, with such subjects as B2B E-Commerce, human imperfection, stream data management and enterprise modeling - Approaches to Information Systems Engineering, discussing data warehouse development, web-enabled methods, reuse, and meta-data - Concepts for Information Systems, on more fundamental notions such as time, abstraction, co-operation, intention and information All the contributors are well-known and highly reputed scholars in the area of Information Systems Engineering from all over the world.

Modeling Populations of Adaptive Individuals

Modeling Populations of Adaptive Individuals PDF Author: Steven F. Railsback
Publisher: Princeton University Press
ISBN: 0691195285
Category : Science
Languages : en
Pages : 195

Book Description
"This book offers a new theory for modeling how organisms make tradeoff decisions and how these decisions affect both individuals and populations. Tradeoff decisions (or behaviors) are those that are optimize survival and include behaviors like foraging and reproduction. Existing theories have not painted a complete picture of tradeoff decisions because they only observe how the decisions of an individual affect them rather than how individuals impact, and are impacted by, the behavior of their communities. The authors' theory-which they call state and prediction based theory-uses individual-based models since these models show the complex ways that organisms relate to their environment. The authors' broader approach, one that integrates behavior and population dynamics, allows ecologists to see how individuals make adaptive tradeoff decisions. In simpler terms, this theory does not assume, as the previous models do, that future conditions are fixed, known, and unaffected by the behavior of others. Instead, the authors assume individuals make decisions like people do, which is by forecasting future conditions, using approximation to make good decisions, and updating their choices as conditions change"--