Influences of Forest and Rangeland Management on Salmonid Fishes and Their Habitats PDF Download
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Author: William R. Meehan
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 792
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Book Description
Author: William R. Meehan
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 792
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Book Description
Author: Yuri P. Altukhov
Publisher: John Wiley & Sons
ISBN: 0470999527
Category : Technology & Engineering
Languages : en
Pages : 368
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Book Description
This important title encompasses features of genetic processes in complexly organised population systems of salmonids, one of the most commercially valuable families of fish worldwide. Translated from the original work in Russian, the authors have taken the opportunity to update and revise the work, much of it appearing in the English language for the first time. Covering such important concepts as optimal gene diversity and the unfavourable influence of fishery and hatchery reproduction on the genetic structure of salmon populations, the authors have drawn together a huge wealth of information that will form the cornerstone of much new work in the future. The authors of Salmonid Fishes have between them many years of research experience and practical knowledge in the area and the English translation of this important work, which has been edited by Professor John Thorpe and Professor Gary Carvalho, provides vital information for all those involved in salmonid management, exploitation and conservation, including fish biologists, fisheries managers, conservation and population biologists, ecologists and geneticists.
Author: Joseph G. Cloud
Publisher: Springer Science & Business Media
ISBN: 1461528666
Category : Medical
Languages : en
Pages : 312
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Book Description
As the human population increases and nations become more industrialized, the habitat and water quality required for the survival of fish continues to decline. In addition to these environmental factors, fish populations are directly or potentially affected by harvesting, enhancement programs and introgression with hatchery-propagated or transgenic fish. To our knowledge no other scientific meeting has been assembled to consider the breadth of the problem, to review the technology that is presently available for the preservation of the germ plasm of salmonid stocks and to identify the scientific advances that are required to overcome the problems. Because many salmonids have spawning grounds within the confines of a specific region or county but will spend a large portion of their life cycle within the territorial waters of other countries or in the open ocean, the preservation of unique genes or gene pools in these animals requires international cooperation. This scientific meeting has provided a forum in which to discuss the problems, evaluate the present methods or technology for addressing the problems and suggest new directions or innovations that need to be implemented. During this meeting we limited our discussion to salmonid fishes. However, the general conclusions about the factors that affect the population dynamics of fish stocks and the technical aspects concerning the preservation of germ plasm will be applicable to other fish species.
Author: R. P. Hedrick
Publisher:
ISBN:
Category : Protozoan diseases
Languages : en
Pages : 12
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Book Description
Author: George Herbert Allen
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 18
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Book Description
Author: Philip E. McAllister
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 16
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Book Description
Author: A. John Ross
Publisher:
ISBN:
Category : Fish hatcheries
Languages : en
Pages : 12
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Book Description
Incidence of acid-fast bacillus infections in salmonid fishes at West Coast hatcheries was determined for 1957-59. No evidence was obtained which would indicate a definite trend towards either increased or decreased rates of infection. It is apparent that the incidence of infection is higher in hatchery-marked fish than in unmarked fish. Only one hatchery was found free of infection during the 3 years covered by the investigation. This installation had never used raw salmon products in diet.
Author: H. S. Davis
Publisher:
ISBN:
Category : Amoeba
Languages : en
Pages : 18
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Book Description
Author: W. Pennell
Publisher: Elsevier
ISBN: 0080539661
Category : Science
Languages : en
Pages : 1071
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Book Description
As salmonids have been reared for more than a century in many countries, one might expect that principles are well established and provide a solid foundation for salmonid aquaculture. Indeed, some of the methods used today in salmonid rearing are nearly identical to those employed one hundred years ago. Areas of salmonid research today include nutrition, smolt and stress physiology, genetics and biotechnology.The purpose of this book is to provide a useful synthesis of the biology and culture of salmonid fishes. The important practices in salmonid culture as well as the theory behind them is described. This volume will be of interest to students, researchers, fisheries biologists and managers as well as practising aquaculturists.
Author: David H. Johnson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 504
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Book Description
This is the first publication to collect, standardize, and recommend a scientifically rigorous set of field protocols for monitoring and assessing salmon and trout populations. Includes five additional techniques that can be used with any of the 13 principle methods to supplement information gathered.Over four dozen fisheries experts throughout the U.S. Pacific Northwest and beyond contributed their time to pick, write, and review the most reliable protocols for enumerating salmonids in the field. Presented in an easy to use format, each of the 18 peer-reviewed protocols covers objectives, sample design, data handling, personnel and operational requirements, and field and office techniques, including survey forms.Standardized monitoring protocols will improve data reliability, maximize opportunities for data sharing and data set comparability, and ultimately improve the ability to assess status and trends. The Handbook will also support consistency in data collection for salmonids at the international level.
