Download or read book Ecology of Atlantic Salmon and Brown Trout written by Bror Jonsson and published by Springer Science & Business Media. This book was released on 2011-05-03 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Salmon and Sea Trout written by Sir Herbert Maxwell and published by . This book was released on 1898 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Entirely Synthetic Fish written by Anders Halverson and published by Yale University Press. This book was released on 2010-03-02 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Fly Fishing for Salmon and Sea Trout written by Arthur Oglesby and published by Greycliff Publishing Company. This book was released on 1986 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to fly fishing for salmon and sea trout.

Download or read book Sea Trout written by Graeme Harris and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brown trout displays widely divergent life history strategies involving, variously, usage of streams, rivers, lakes, estuaries and the sea. The sea trout is the full sea-going form, it is very common and competes with salmon for the position of the most sought after migratory salmonid in many countries. Its use of freshwater, estuaries and coastal waters gives it a unique position as a sentinel species of environmental quality across these habitats. Although a commercially and recreationally important fish species, the management and scientific knowledge about sea trout has often been overshadowed by a focus on the salmon. However the First International Symposium for the Biology, Management and Conservation of Sea Trout sought to address this when a group of world class experts convened to share their research and form the basis for this impressive volume, covering: Stocks and fisheries Genetics and life history Ecology and population dynamics Management of stocks and world fisheries Fisheries scientists and managers, fish biologists, aquatic biologists, ecologists, members of fish and wildlife agencies, government departments and libraries in universities and research establishments where fish and fisheries are studied and taught will find this book a fascinating exploration of the species and a valuable reference tool.

Download or read book The Behavior and Ecology of Pacific Salmon and Trout written by Thomas P. Quinn and published by UBC Press. This book was released on 2011-11-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.

Download or read book Salmon and Sea Trout Fishing written by Walter Gilbert Hartley and published by . This book was released on 1979 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trout and Salmon Flies of Wales written by Moc Morgan and published by Stackpole Books. This book was released on 1998-08 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Color photos and recipes for the most effective Welsh flies, with fishing tips and background on the flies.

Download or read book The Salmon and Sea Trout Rivers of England and Wales written by Augustus Grimble and published by . This book was released on 1904 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trout and Salmon Fishing written by John E. Hutton and published by . This book was released on 1949 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life history and Habits of the Salmon Sea trout Trout and Other Freshwater Fish written by Peter D. Malloch and published by . This book was released on 1910 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Sea trout written by Henry George Lamond and published by . This book was released on 1916 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Life history Habits of the Salmon Sea trout Other Freshwater Fish written by Peter D. Malloch and published by . This book was released on 1912 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Salmon Sea Trout Fishing written by Charles Bingham and published by B T Batsford Limited. This book was released on 1988 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Salmon and Sea Trout How to Propagate Preserve and Catch Them in British Waters written by Herbert Maxwell and published by . This book was released on 2010-09 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a facsimile reprint of the original book by Herbert Maxwell, rebuilt using the latest technology. There are no poor, missing or blurred pages and all photographic images have been professionally restored. At Yokai Publishing we believe that by restoring this title to print it will live on for generations to come.

Download or read book Salmon Fishing written by Hugh Falkus and published by Burns & Oates. This book was released on 1984 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work, written by an experienced angler, covers aspects of the sport such as biology of the fish, tackle, flies and angling methods.

Download or read book Salmon and Trout written by Dean Sage and published by . This book was released on 1902 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: