Download or read book The Movements of Adult Salmon Within the River Spey written by Robert Laughton and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scottish Fisheries Research Report written by and published by . This book was released on 1998 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Fisheries Review written by and published by . This book was released on 1992 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Movements of Adult Atlantic Salmon in the River Tay written by John Webb and published by . This book was released on 1989 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nature of the Cairngorms written by Philip Shaw and published by The Stationery Office. This book was released on 2006-06-12 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cairngorms area is arguably the most significant for nature conservation in the British Isles and contains its largest National Park. In this book, 35 authors, drawing on published and unpublished sources, present an up-to-date review of the area's natural features, including plants, animals, habitats, geology and landforms. The review falls into three parts. The first and largest part describes the area's rich diversity of nature, with each chapter summarising recent research findings, trends and conservation issues for a different landform, habitat or species group. The second part considers deer management, recreation and projected climate change impacts. Part three focuses on rare and threatened species, and identifies areas and habitats rich in species for which the Cairngorms are nationally and internationally important.
Download or read book Advances in Invertebrates and Fish Telemetry written by Jean Paul Lagardere and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a selection of the most significant papers presented at the Second Conference on Fish Telemetry in Europe in La Rochelle, France, in April 1997. The conference was attended by 100 scientists from 18 countries. The contributions are grouped under the following headings: Methodology and New Developments, Tagging Procedures, Behavioural and Physiological Ecology, Fish Migration, Stock Management and Conservation. Particular emphasis was put on tag miniaturisation, multiple functions and sampling strategies. Papers concerned the effects of tags on fish for consolidating behavioural or original physiological investigations noticeably more open to the marine environment. Methods were essentially applied to study the relationships between fish and their natural environment. Besides providing up-to-date information on the state of fish telemetry, the book illustrates the increase in spatial and temporal scales and the number of tracked fish which gives a statistical basis for field study in behavioural ecology.
Download or read book The Behaviour of Adult Atlantic Salmon Ascending the Rivers Tay and Tummel to Pitlochry Dam written by John Webb and published by . This book was released on 1990 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Distribution and Growth of Juvenile Salmon and Trout in the Major Tributaries of the River Dee Catchment Grampian Region written by P. E. Shackley and published by . This book was released on 1992 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relocation of Naturally spawned Salmonid Ova as a Countermeasure to Patchiness in Adult Distribution at Spawning written by Alan F. Youngson and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Lives of Salmon written by A. F. Youngson and published by Voyageur Press (MN). This book was released on 1996 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a popular scientific account of the biology of salmon and the biology of the populations to which they belong. It tells of the ways in which the salmon's lives are organised, why they vary so much and how this affects salmon fisheries.
Download or read book Atlantic Salmon Ecology written by Øystein Aas and published by John Wiley & Sons. This book was released on 2011-07-05 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlantic salmon is one of the most prized and exploited species worldwide, being at the centre of a massive sports fishing industry and increasingly as the major farmed species in many countries worldwide. Atlantic Salmon Ecology is a landmark publication, both scientifically important and visually attractive. Comprehensively covering all major aspects of the relationship of the Atlantic salmon with its environment, chapters include details of migration and dispersal, reproduction, habitat requirements, feeding, growth rates, competition, predation, parasitsm, population dynamics, effects of landscape use, hydro power development, climate change, and exploitation. The book closes with a summary and look at possible future research directions. Backed by the Norwegian Research Council and with editors and contributors widely known and respected, Atlantic Salmon Ecology is an essential purchase for all those working with this species, including fisheries scientists and managers, fish biologists, ecologists, physiologists, environmental biologists and aquatic scientists, fish and wildlife department personnel and regulatory bodies. Libraries in all universities and research establishments where these subjects are studied and taught should have copies of this important publication. Comprehensive and up-to-date coverage of Atlantic Salmon Atlantic Salmon is one of the world's most commercially important species Backed by the Norwegian Research Council Experienced editor and internationally respected contributors
Download or read book The Atlantic Salmon written by W. M. Shearer and published by John Wiley & Sons. This book was released on 1992-10-06 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: An internationally-renowned biologist describes the life history of the Atlantic salmon in light of intensive research over the last 30 years. Provides an authoritative and detailed appraisal of the fisheries that exploit this valuable resource. The salmon's conflict with the environment is examined in the context of changes in land use, water abstraction and acidification. A complete analysis of the author's North Esk investigation is given and the effects of fish farming on wild stocks and the salmon's future are discussed.
Download or read book Catch and Release written by John H. Webb and published by . This book was released on 1998 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Design and Testing of a Divided Trawl for Comparative Fishing Experiments written by J. H. B. Robertson and published by . This book was released on 1990 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fish Populations and Invertebrates in Some Headwaters of the Rivers Dee and Spey 1983 1985 written by B. R. S. Morrison and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
