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Author: D. Dudley Williams
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 368
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Book Description
"Situated on the western margin of Europe, Wales has been moulded by the erosional and depositional power of its fresh waters by virtue of high rainfall interacting with extensive regions of bedrock and post- Ice Age glacial debris. The result is a still evolving landscape rich in upland bogs, springs, mountain streams and lakes, rivers running through deeply eroded valleys, and large, lowland rivers meandering across wide floodplains into estuaries and the sea. Subsequent chapters bring together, for the first time, the combined expertise of a group of scientists whose intimate and collective knowledge of the Welsh aquatic landscape is unparalleled. The authors begin by describing the knowledge base of these important habitats, emphasising the structure and role of their plant, animal, and microbial communities. Upon this are built chapters that review the pioneering role of Welsh river studies in the development of running water science and, very poignantly, assess the high degree of human alteration of the principality's riverine ecosystems. These are followed by chapters that discuss the need for further scientific study, management, conservation, restoration and education so that future impacts on Welsh waters may be understood and minimised. Throughout the book flows the underlying theme that there has been and always will be a close link between water resources and the development of Welsh society."--Publisher's description.
Author: D. Dudley Williams
Publisher:
ISBN:
Category : Aquatic biology
Languages : en
Pages : 368
Get Book Here
Book Description
"Situated on the western margin of Europe, Wales has been moulded by the erosional and depositional power of its fresh waters by virtue of high rainfall interacting with extensive regions of bedrock and post- Ice Age glacial debris. The result is a still evolving landscape rich in upland bogs, springs, mountain streams and lakes, rivers running through deeply eroded valleys, and large, lowland rivers meandering across wide floodplains into estuaries and the sea. Subsequent chapters bring together, for the first time, the combined expertise of a group of scientists whose intimate and collective knowledge of the Welsh aquatic landscape is unparalleled. The authors begin by describing the knowledge base of these important habitats, emphasising the structure and role of their plant, animal, and microbial communities. Upon this are built chapters that review the pioneering role of Welsh river studies in the development of running water science and, very poignantly, assess the high degree of human alteration of the principality's riverine ecosystems. These are followed by chapters that discuss the need for further scientific study, management, conservation, restoration and education so that future impacts on Welsh waters may be understood and minimised. Throughout the book flows the underlying theme that there has been and always will be a close link between water resources and the development of Welsh society."--Publisher's description.
Author: Alvin Nicholas
Publisher: Amberley Publishing Limited
ISBN: 1445620987
Category : Photography
Languages : en
Pages : 215
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Book Description
A stunning photographic journey along the length of this iconic river
Author: Derek Mills
Publisher: John Wiley & Sons
ISBN: 0470995483
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
Salmon at the Edge covers, in depth, the problems faced by wild Atlantic salmon and sea trout in estuaries and coastal zones, and in their early weeks at sea. The book also reflects the current precarious state of many migratory salmonid populations and the need for new approaches to a number of threats to these populations. Generated from papers given at the landmark Sixth Atlantic Salmon Symposium, held in Edinburgh, UK, Salmon at the Edge contains a huge wealth of information on such important topics as the impact of salmon farming, the behaviour of post-smolts in their early migration and their vulnerability to by-catch, and the use of nutrient enrichment and habitat enhancement to increase production of juvenile salmonids. With chapters written by internationally-known and respected authors, and including a message of support from His Royal Highness The Prince of Wales, this important volume is essential reading for all those involved with salmonid fishes, including fish biologists, fisheries scientists and managers, environmental, marine and freshwater scientists, and personnel involved in salmon aquaculture. Libraries in all universities and research establishments where these subjects are studied and taught should have copies on their shelves. The Sixth Atlantic Salmon Symposium, from which chapters in this book have been generated, was organised by The Atlantic Salmon Trust and The Atlantic Salmon Federation, and was published with the financial support of The Fishmongers’ Company and Scottish and Southern Energy. Derek Mills of The Atlantic Salmon Trust, Pitlochry, Perthshire, UK has many years of research, writing and editing experience in salmon biology and fisheries
Author: Moc Morgan
Publisher: Stackpole Books
ISBN: 9780811716116
Category : Sports & Recreation
Languages : en
Pages : 182
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Book Description
Color photos and recipes for the most effective Welsh flies, with fishing tips and background on the flies.
Author: R.W. Edwards
Publisher: Springer Science & Business Media
ISBN: 9400918941
Category : Science
Languages : en
Pages : 334
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Book Description
This book brings together research into the process of stream acidification and its impact on Welsh surface waters, carried out over the past decade or so. It is perhaps surprising that not until the 1980's was clear evidence of stream acidification assembled. In Wales, concerns over pollution had focused water quality sampling principally on the areas of traditional heavy industry and large urban popula tions served by inadequate sewerage systems and sewage disposal arrange ments. Mistakenly, it had been assumed that, with its prevailing westerly winds, Wales would receive precipitation substantially unpolluted by the industrial and urban emissions from Britain and mainland Europe. Assurance of the high quality of Welsh upland streams, the traditional nursery ground of salmonids, was eroded particularly by studies in the vicinity of Llyn Brianne reservoir in the catchment of the River Tywi of Central Wales. These demonstrated a clear correspondence between the biological quality and fisheries of streams in the catchment and aspects of stream chemistry, par ticularly pH, aluminium and calcium on the one hand, and catchment land use on the other. It is salutary to record that the first signals were of an inexplicable failure of the runs of migratory salmonids into the upper catchment, occupied by the Llyn Brianne reservoir and its influent streams, and the failure to restore the fishery by re-stocking with eggs and fry. Only then did the significance of the recent decline in some other upland lake and reservoir fisheries in Wales become apparent.
Author:
Publisher:
ISBN: 9780811702799
Category : Atlantic salmon fishing
Languages : en
Pages : 0
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Book Description
A Celebration of Salmon Rivers is devoted to the Atlantic salmon Salmo salar, and the magnificent rivers it inhabits. The book depicts more than 50 of the finest Atlantic salmon rivers, each river described by those familiar with it and committed to maintaining and preserving it. Here in one book are all the salmon rivers fly fishermen dream of fishing--the Alta, The Laerdal, the Spey, the Dee, the Moy, the Big Laxa, the Ponoi, the Kharlovka, and the great rivers of Canada. No other book has come close to capturing so many wonderful rivers, many of which are remote and exclusive and have never been seen in published photographs.
Author:
Publisher:
ISBN:
Category : Topographic maps
Languages : en
Pages : 28
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Book Description
Author: Arthur Granville Bradley
Publisher: London, A. and C. Black
ISBN:
Category : England
Languages : en
Pages : 622
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Book Description
Author: Irwin Edward Bainbridge Cox
Publisher:
ISBN:
Category :
Languages : en
Pages : 368
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Book Description
Author: Philip Gross
Publisher:
ISBN: 9781781722336
Category : Poetry
Languages : en
Pages : 0
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Book Description
A Fold in the River, from Seren Books, is the fruit of collaboration between T.S. Eliot prize-winning poet Philip Gross and the visual artist Valerie Coffin Price, inspired by the River Taff in Wales. Philip Gross once lived on the banks of the river Taff in Wales and his journals are the source for the powerful poems. Valerie Price revisited the walking route along the river and evolved the beautiful prints and drawings that accompany the poems.
