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Author: Canada. Parliament. House of Commons. Standing Committee on Fisheries and Oceans
Publisher:
ISBN:
Category : Fishery management
Languages : fr
Pages : 114
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Book Description
Author: Canada. Parliament. House of Commons. Standing Committee on Fisheries and Oceans
Publisher:
ISBN:
Category : Fishery management
Languages : fr
Pages : 114
Get Book Here
Book Description
Author: Canada. Parliament. House of Commons. Standing Committee on Fisheries and Oceans
Publisher:
ISBN:
Category : Fishery management
Languages : fr
Pages : 198
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Book Description
Author: Evelyn Pinkerton
Publisher: UBC Press
ISBN: 077484308X
Category : Nature
Languages : en
Pages : 315
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Book Description
This book is the first to consolidate information on the different routes by which these co-operative management arrangements have evolved. The authors include anthropologists, environmental planners, biologists, economists, fishery managers and tribal and governmental leaders. Their contributions examine the process of achieving co-management, the institutions created by co-management arrangements, and the benefits which result. Some of these benefits include more efficient and equitable management, less conflict between government and fishermen, and better co-operation between groups of fishermen. Co-operative Management of Local Fisheries looks at successes and failures of these arrangements for shared decision-making and offers guidelines for viable co-operative management.
Author:
Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 824
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Book Description
Author: R. Quentin Grafton
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 44
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Book Description
Author: Brian W. Coad
Publisher: University of Toronto Press
ISBN: 1442647108
Category : Nature
Languages : en
Pages : 633
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Book Description
Marine Fishes of Arctic Canada is an accessible and up-to-date study on the diverse marine fish population existing in Canadian waters.
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.
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: DONALD J. LANGE
Publisher:
ISBN: 9780433501237
Category :
Languages : en
Pages :
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Book Description
Author: Didier Paugy
Publisher: IRD Orstom
ISBN:
Category : Nature
Languages : fr
Pages : 468
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Book Description
This new reexamined and corrected fauna displays an up to date account of knowledge on the systematics of the fresh and brackish water fishes of West Africa. Its aim is to help ichthyologists with the identification of the species they collect. It is made practical and didactic by paying special attention to iconography and as far as possibly by giving priority to the simplest and easiest observable criteria. West Africa, from the Senegal River basin in the North West to the Chad basin in the North East and the Cross River in the South, includes the majority of the Sahelo-Sudan basins, except for the Nile, and the Western Guinea area, covering the Atlantic Coastal Basins from Guinea to Western Cote d'Ivoire. Specialists of each group or family were called to write the chapters. To facilitate the access of this fauna, an English translation is provided for all text. Summary tables, comparing morphological characters and measures for the different species, complement the identification keys. Distribution maps are provided for freshwater species. At present, 64 families are described, including 192 genera and 584 valid species. A reduced paper version is presented in two volumes; the integral CD-ROM version is inserted on the back cover of the second volume.
