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Author: Christopher J. Hunter
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 362
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Book Description
Better Trout Habitat explains the physical, chemical, and biological needs of trout, and shows how climate, geology, vegetation, and flowing water all help to create trout habitat.
Author: Christopher J. Hunter
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 362
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Book Description
Better Trout Habitat explains the physical, chemical, and biological needs of trout, and shows how climate, geology, vegetation, and flowing water all help to create trout habitat.
Author: Christopher J. Hunter
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 360
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Book Description
Better Trout Habitat explains the physical, chemical, and biological needs of trout, and shows how climate, geology, vegetation, and flowing water all help to create trout habitat.
Author: Bror Jonsson
Publisher: Springer Science & Business Media
ISBN: 9400711891
Category : Science
Languages : en
Pages : 720
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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.
Author: Jeffrey L. Kershner
Publisher:
ISBN: 9781934874547
Category : Chars
Languages : en
Pages : 831
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Book Description
This is the first comprehensive look at the taxonomy, life history, and conservation status of the world's trout and char. These are fascinating and beautiful fish that rate high for the angler as well as for tourist and recreational economies. Trout and char also play key roles in the ecology of many lake and river systems around the world. Trout and char are abundant in many regions, but most native species are on the decline. Some are classified as vulnerable, threatened, or endangered. Because of their widespread stocking in regions where they are not native, some trout and char also are the cause for threats to other native species. Loss of habitat, an expanding human population, and rapid climate change are challenging their future as streams warm and waters become more variable in their flows. This book examines trout and char from all these perspectives. Early chapters explore the unique diversity and life history aspects of trout and char and provide information on the taxonomy and systematics while also detailing some of unique life histories. New information is presented about species diversity and distributions by country. Summary chapters explore significant conservation and management challenges of broad interest to scientists, resource managers, anglers, and interested public. Trout and Char of the World end s with a series of essays exploring the future of trout and char over the next 50 years. Trout and Char of the World will be a primary resource for trout and char biologists, conservationists, and anglers in the many countries where trout and char are native or have been introduced, and a resource for anyone interested in learning more about the diversity and distribution of trout and char worldwide.--
Author: Todd Hanson
Publisher:
ISBN: 9780980219401
Category : Fishing
Languages : en
Pages : 128
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Book Description
Author: Javier Lobón-Cerviá
Publisher: John Wiley & Sons
ISBN: 1119268311
Category : Technology & Engineering
Languages : en
Pages : 821
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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.
Author: George Daniel
Publisher: Stackpole Books
ISBN: 0811745627
Category : Sports & Recreation
Languages : en
Pages : 250
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Book Description
Advanced tight line nymphing tactics, including Czech, Polish, French, Spanish, and American techniques.
Author: George Daniel
Publisher: Rowman & Littlefield
ISBN: 0811767701
Category : Sports & Recreation
Languages : en
Pages : 217
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Book Description
Best-selling author George Daniel shares expert tactics and techniques for a new generation of nymph anglers. He covers specialized equipment, flies, and presentations, focusing on advanced lessons and tips for anglers with a solid grasp of fundamentals. Important technique sequences and fly patterns are photographed in detail.
Author: Jeffrey J. Opperman
Publisher: Univ of California Press
ISBN: 0520294106
Category : Business & Economics
Languages : en
Pages : 268
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Book Description
Introduction to temperate floodplains -- Hydrology -- Floodplain and geomorphology -- Biogeochemistry -- Ecology: introduction -- Floodplain forests -- Primary and secondary production -- Fish and other vertebrates -- Ecosystem services and floodplain reconciliation -- Floodplains as green infrastructure -- Case studies of floodplain management and reconciliation -- Central Valley floodplains: introduction and history -- Central Valley floodplains today -- Reconciling Central Valley floodplains -- Conclusions: managing temperate floodplains for multiple benefits
Author: Anders Halverson
Publisher: Yale University Press
ISBN: 0300166869
Category : Science
Languages : en
Pages : 325
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Book Description
Anders Halverson provides an exhaustively researched and grippingly rendered account of the rainbow trout and why it has become the most commonly stocked and controversial freshwater fish in the United States. Discovered in the remote waters of northern California, rainbow trout have been artificially propagated and distributed for more than 130 years by government officials eager to present Americans with an opportunity to get back to nature by going fishing. Proudly dubbed an entirely synthetic fish by fisheries managers, the rainbow trout has been introduced into every state and province in the United States and Canada and to every continent except Antarctica, often with devastating effects on the native fauna. Halverson examines the paradoxes and reveals a range of characters, from nineteenth-century boosters who believed rainbows could be the saviors of democracy to twenty-first-century biologists who now seek to eradicate them from waters around the globe. Ultimately, the story of the rainbow trout is the story of our relationship with the natural world--how it has changed and how it startlingly has not.
