Author: William M. SniderPublisher:
ISBN:
Category : Fishery law and legislation
Languages : en
Pages : 40
Book Description
The Response of a Bait Angler Dominated Trout Fishery to Catch-and-release Oriented Angling Regulations
Author: William M. SniderPublisher:
ISBN:
Category : Fishery law and legislation
Languages : en
Pages : 40
Book Description
Sport Fishery Abstracts
Author: Fisheries Review
Author: Inland Fisheries Administrative Report
Author: Author-title Index to Inland Fisheries Administrative Reports, 1932-87
Author: Arthur C. KnutsonPublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 62
Book Description
Ecology of Atlantic Salmon and Brown Trout
Author: Bror JonssonPublisher: 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.
RECREATIONAL FISHERIES
Author: Food and Agriculture Organization of the United NationsPublisher: Food & Agriculture Org.
ISBN: 9251072140
Category : Nature
Languages : en
Pages : 194
Book Description
The importance of recreational fisheries is increasing in many transitional economies. These guidelines focus on recreational fisheries and describe strategies to promote environmentally sustainable and socially responsible management of such fisheries. To this end, the document details policy, managerial and behavioural recommendations for sustainable recreational fisheries.
Brown Trout
Author: Javier Lobón-CerviáPublisher: 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.
An Entirely Synthetic Fish
Author: Anders HalversonPublisher: Yale University Press
ISBN: 0300166869
Category : Science
Languages : en
Pages : 325
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.
Recreational Hunting, Conservation and Rural Livelihoods
Author: Barney DicksonPublisher: John Wiley & Sons
ISBN: 9781444303186
Category : Science
Languages : en
Pages : 384
Book Description
Recreational hunting has long been a controversial issue. Is it a threat to biodiversity or can it be a tool for conservation, giving value to species and habitats that might otherwise be lost? Are the moral objections to hunting for pleasure well founded? Does recreational hunting support rural livelihoods in developing countries, or are these benefits exaggerated by proponents? For the first time, this book addresses many of the issues that are fundamental to an understanding of the real role of recreational hunting in conservation and rural development. It examines the key issues, asks the difficult questions, and seeks to present the answers to guide policy. Where the answers are not available, it highlights gaps in our knowledge and lays out the research agenda for the next decade.