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Author: International Atlantic Salmon Foundation
Publisher: New York ; St. Andrews, N.B. : International Atlantic Salmon Foundation
ISBN:
Category : Atlantic salmon
Languages : en
Pages : 526
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Book Description
Author: International Atlantic Salmon Foundation
Publisher: New York ; St. Andrews, N.B. : International Atlantic Salmon Foundation
ISBN:
Category : Atlantic salmon
Languages : en
Pages : 526
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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: Library of Congress
Publisher:
ISBN:
Category : Monographic series
Languages : en
Pages : 804
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Book Description
Author: Frank Richardson
Publisher:
ISBN:
Category : Fishery resources
Languages : en
Pages : 240
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Book Description
The first Wild Trout Symposium (1974) was sponsored by Trout Unlimited and the United States Department of the Interior. The second Symposium (1979) added the Federation of Fly Fisherman as a sponsor. Five years later (1984) the U.S. Department of Agriculture - Forest Service joined. In 1989 , the U.S. Environmental Protection Agency and the American Fisheries Society joined. These symposia began with a concentration on management, then recognized that more than 'management' was required in ongoing efforts to enhance wild salmonid fisheries. Subsequent symposia began to examine a broader range of environmental and social factors influencing wild salmonids. The originators hoped that each symposium would be a building block upon which the succeeding symposium could provide insights and research which future sessions could revisit. Along with the broadening of sponsorship, we have grown , we have gained recognition, and we look forward to expanding our contribution to the cause of wild salmonids. We hope these Proceedings will stimulate readers thinking and efforts on behalf of our wild salmonid resources , and plan to participate with us in Wild Trout V.
Author: Etienne Prévost
Publisher: Editions Quae
ISBN: 9782738009623
Category : Technology & Engineering
Languages : en
Pages : 234
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Book Description
This book collects the available knowledge about the ecology of Atlantic salmon and contemporary stock assessment methods supporting the specific task of establishing reference points. Bayesian approaches for incorporating uncertainty are front and centre in the book. Stock and recruitment analysis methods, transport of reference points, risk analysis and use of index measures of abundance are presented in a format which can be readily understood and applied by scientists, educators, professionals and undergraduate students.
Author: William A. Dill
Publisher: Food & Agriculture Org.
ISBN: 9789251033586
Category : Nature
Languages : en
Pages : 298
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Book Description
Author: Paul Te-Hsien Huang
Publisher: Halifax, N.S. : P.T.H. Huang
ISBN:
Category : Continental shelf
Languages : en
Pages : 778
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Book Description
Author: Randy J. Nelson
Publisher: Oxford University Press
ISBN: 0199714630
Category : Science
Languages : en
Pages : 596
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Book Description
Life evolves in a cyclic environment, and to be successful, organisms must adapt not only to their spatial habitat, but also to their temporal habitat. How do plants and animals determine the time of year so they can anticipate seasonal changes in their habitats? In most cases, day length, or photoperiod, acts as the principal external cue for determining seasonal activity. For organisms not living at the bottom of the ocean or deep in a cave, day follows night, and the length of the day changes predictably throughout the year. These changes in photoperiod provide the most accurate signal for predicting upcoming seasonal conditions. Measuring day length allows plants and animals to anticipate and adapt to seasonal changes in their environments in order to optimally time key developmental events including seasonal growth and flowering of plants, annual bouts of reproduction, dormancy and migration in insects, and the collapse and regrowth of the reproductive system that drives breeding seasons in mammals and birds. Although research on photoperiodic time measurement originally integrated work on plants and animals, recent work has focused more narrowly and separately on plants, invertebrates, or vertebrates. As the fields have become more specialized there has been less interaction across the broader field of photoperiodism. As a result, researchers in each area often needlessly repeat both theoretical and experimental work. For example, understanding that there are genetically distinct morphs among species that, depending on latitude, respond to different critical photoperiods was discovered separately in plants, invertebrates, and vertebrates over the course of 20 years. However, over the past decade, intense work on daily and seasonal rhythms in fruit flies, mustard plants, and hamsters and mice, has led to remarkable progress in understanding the phenomenology, as well as the molecular and genetic mechanisms underlying circadian rhythms and clocks. This book was developed to further this type of cooperation among scientists from all related disciplines. It brings together leading researchers working on photoperiodic timing of seasonal adaptations in plants, invertebrates, and vertebrates. Each of its three sections begins with an introduction by the section editor, and at the end of the book, the section editors present a synthesis of common themes in photoperiodism, as well as discuss similarities and differences in approaches to the study of photoperiodism, and future directions for research on photoperiodic time measurement.
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 514
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Book Description
Author: Alice Riedmiller
Publisher:
ISBN:
Category : Acid deposition
Languages : en
Pages : 420
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Book Description
