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Author: David Jenkins
Publisher: Natural Environment Research
ISBN:
Category : Nature
Languages : en
Pages : 140
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Book Description
Author: David Jenkins
Publisher: Natural Environment Research
ISBN:
Category : Nature
Languages : en
Pages : 140
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Book Description
Author: D. Mills
Publisher: Springer Science & Business Media
ISBN: 9400912358
Category : Science
Languages : en
Pages : 604
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Book Description
At present fishing for salmon in Norwegian home water is carried out with drift nets, bag nets, bend nets, lift nets and stake nets in the sea, and mainly by rods in the rivers. Catch statistics have been collected since 1876, but reliability of the statistics is questionable. The rates of exploitation on many Norwegian salmon stocks are very high, and data are presented and discussed for River Laerdal, River Eira and River Imsa stocks. As a result of this heavy exploitation with nets, the frequency of net-marked salmon entering rivers is high especially for griIse, although most net-marked salmon are only slightly damaged. It is suggested that mortality of salmon that are net-damaged hear or in brackish water is relatively small compared with salmon that escape from nets on the high seas. Some possible effects of selective fishing are also discussed. 159 Status of Exploitation of Atlantic Salmon in Norway REFERENCES Anon. (l985a) Salmon and sea trout fisheries 1984. Central Bureau of Statistics of Norway, Oslo - Kongsvinger, 96 pp. (in Norwegian with English summary) Anon. (I985b) Report of meeting of working group on North Atlantic salmon. ICES C. M. 1985/ Assess, 11, 67 pp. Angelsen, K. K. and Holm, M. (I978) Rapport om garnforslllk med laks, Fisk og Fiskestell, . ; 15-17. (in Norwegian) Berg, M. , Abrahamsen, B. and Berg, O. K. (I986) Spawning of injured compared to uninjured female Atlantic salmon, Salmo salar L. Aquaculture and Fisheries Management, l.
Author: W. M. Shearer
Publisher: John Wiley & Sons
ISBN:
Category : Nature
Languages : en
Pages : 276
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Book Description
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.
Author: Brad Burns
Publisher: Rowman & Littlefield
ISBN: 0811768155
Category : Sports & Recreation
Languages : en
Pages : 233
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Book Description
A historical look at and current guide to the Cains River in New Brunswick. There is almost a mystical aura surrounding the Cains and its Atlantic salmon and brook trout fishery. Only about a third of it was ever settled and then lightly, and by the middle of the twentieth century settlers had all given up and the river reverted to completely wild, which it still is today. The book also explores the Cains’s relationship with the Miramichi River, in particular the Black Brook, the biggest and most productive pool on the river. In low water, a substantial portion of the Cains’s fall run of fish stacks up there waiting for rain.
Author: Gordon W. Smith
Publisher:
ISBN: 9781785440144
Category : Atlantic salmon
Languages : en
Pages : 16
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Book Description
Author: D. Mills
Publisher: Springer Science & Business Media
ISBN: 9780412460203
Category : Science
Languages : en
Pages : 380
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Book Description
From reviews of the hardback edition:- No matter how experienced a salmon man the reader is, I cannot believe he will study this extremely informative book without learning a great deal and gaining much enjoyment from doing so.The biology and life of the salmon . . .are all dealt with in a most interesting manner . . .Highly recommended. A book not to be read just once, but often to be consulted.; This book is dedicated to Salar the Salmon and what a tribute it is to this unique fish. Supporters of the Trust would be wise to purchase this book and to keep it on the shelf for future reference. - Atlantic Salmon Trust Progress Report
Author: Drew Jamieson
Publisher:
ISBN:
Category :
Languages : en
Pages : 131
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Book Description
SECOND EDITION. (2021). The wild Atlantic salmon in Scotland is a fish of many facets. It is a: Cultural Icon. Atlantic salmon occupy a prominent position in the cultural mythology of Scotland. The Picts carved its image on stones. The Celts told tales of the Salmon of Wisdom.Biodiversity. The salmon is a key element in both the freshwater and the marine ecosystems.Food. Despite modern fish farming, wild salmon is still a premium food product, fetching high prices at Billingsgate and Harrods. Economic. The economic value of wild salmon angling, in terms of income, jobs and capital values, is considerable, particularly in fragile rural areas. Recreation. Salmon angling is an old-established, popular and healthy outdoor recreation, with a respected heritage in Scotland. This book seeks to tell its story. Most of the "Reflections" in this book have been published as articles in the angling or countryside press over the past 50 years. The chapters describe the salmon in its place in the geography, biodiversity, economy and culture of Scotland. They form a record - a Reflection - of times past but they also try to explain, or give context to, the present and perhaps the future.This 'Second Edition' contains some new chapters and updates while retaining the sense of the 'period' when they were first created.
Author: Eric Verspoor
Publisher: John Wiley & Sons
ISBN: 0470995831
Category : Technology & Engineering
Languages : en
Pages : 520
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Book Description
Atlantic Salmon is a cultural icon throughout its North Atlantic range; it is the focus of probably the World’s highest profile recreational fishery and is the basis for one of the World’s largest aquaculture industries. Despite this, many wild stocks of salmon are in decline and underpinning this is a dearth of information on the nature and extent of population structuring and adaptive population differentiation, and its implications for species conservation. This important new book will go a long way to rectify this situation by providing a thorough review of the genetics of Atlantic salmon. Sponsored by the European Union and the Atlantic Salmon Trust, this book comprises the work of an international team of scientists, carefully integrated and edited to provide a landmark book of vital interest to all those working with Atlantic salmon.
Author: David Jenkins
Publisher:
ISBN: 9780904282917
Category :
Languages : en
Pages : 127
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Book Description
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.
