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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Book Description
This paper compares means, variances, and distributions of published survival rates for Pacific salmon across species and life-history stages. The paper also estimates the contribution of freshwater and marine habitats to total recruitment variation, and re-examines differences among species first considered by Neave (1948) using the much larger database that is now available. The study methods include a statistical distribution of salmon survival rates, a statistical analysis of mortality, and comparison of empirical estimates of mean mortality for each species to an estimate of egg-adult mortality derived from fecundity. Species considered in this paper include Oncorhynchus gorbuscha, O. keta, O. nerka, O. kisutch, and O. tshawytscha.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 14
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Book Description
This paper compares means, variances, and distributions of published survival rates for Pacific salmon across species and life-history stages. The paper also estimates the contribution of freshwater and marine habitats to total recruitment variation, and re-examines differences among species first considered by Neave (1948) using the much larger database that is now available. The study methods include a statistical distribution of salmon survival rates, a statistical analysis of mortality, and comparison of empirical estimates of mean mortality for each species to an estimate of egg-adult mortality derived from fecundity. Species considered in this paper include Oncorhynchus gorbuscha, O. keta, O. nerka, O. kisutch, and O. tshawytscha.
Author: Thomas P. Quinn
Publisher: UBC Press
ISBN: 0774842431
Category : Nature
Languages : en
Pages : 392
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Book Description
The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.
Author:
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 202
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Book Description
Author: Gregory R. McMurray
Publisher:
ISBN:
Category : Coastal ecology
Languages : en
Pages : 380
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Book Description
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: Christine L. Madliger
Publisher: Oxford University Press, USA
ISBN: 0198843615
Category : Science
Languages : en
Pages : 361
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Book Description
Conservation physiology is a rapidly expanding, multidisciplinary field that utilizes physiological knowledge and tools to understand and solve conservation challenges. This novel text provides the first consolidated overview of its scope, purpose, and applications, with a focus on wildlife. It outlines the major avenues and advances by which conservation physiology is contributing to the monitoring, management, and restoration of wild animal populations. This book also defines opportunities for further growth in the field and identifies critical areas for future investigation. By using a series of global case studies, contributors illustrate how approaches from the conservation physiology toolbox can tackle a diverse range of conservation issues including the monitoring of environmental stress, predicting the impact of climate change, understanding disease dynamics, improving captive breeding, and reducing human-wildlife conflict. Moreover, by acting as practical road maps across a diversity of sub-disciplines, these case studies serve to increase the accessibility of this discipline to new researchers. The diversity of taxa, biological scales, and ecosystems highlighted illustrate the far-reaching nature of the discipline and allow readers to gain an appreciation for the purpose, value, applicability, and status of the field of conservation physiology. Conservation Physiology is an accessible supplementary textbook suitable for graduate students, researchers, and practitioners in the fields of conservation science, eco-physiology, evolutionary and comparative physiology, natural resources management, ecosystem health, veterinary medicine, animal physiology, and ecology.
Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 508
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Book Description
Author: Paul J. B. Hart
Publisher: John Wiley & Sons
ISBN: 1405123222
Category : Technology & Engineering
Languages : en
Pages : 432
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Book Description
Recent decades have witnessed strong declines in fish stocks aroundthe globe, amid growing concerns about the impact of fisheries onmarine and freshwater biodiversity. Fisheries biologists andmanagers are therefore increasingly asking about aspects ofecology, behaviour, evolution and biodiversity that weretraditionally studied by people working in very separate fields.This has highlighted the need to work more closely together, inorder to help ensure future success both in management andconservation. The Handbook of Fish Biology and Fisheries has beenwritten by an international team of scientists and practitioners,to provide an overview of the biology of freshwater and marine fishspecies together with the science that supports fisheriesmanagement and conservation. This volume, subtitled Fish Biology, reviews a broadvariety of topics from evolutionary relationships and globalbiogeography to physiology, recruitment, life histories, genetics,foraging behaviour, reproductive behaviour and community ecology.The second volume, subtitled Fisheries, uses much of thisinformation in a wide-ranging review of fisheries biology,including methods of capture, marketing, economics, stockassessment, forecasting, ecosystem impacts and conservation. Together, these books present the state of the art in ourunderstanding of fish biology and fisheries and will serve asvaluable references for undergraduates and graduates looking for acomprehensive source on a wide variety of topics in fisheriesscience. They will also be useful to researchers who needup-to-date reviews of topics that impinge on their fields, anddecision makers who need to appreciate the scientific backgroundfor management and conservation of aquatic ecosystems. To order volume I, go to the box in the top right hand corner.Alternatively to order volume II, go to:http://www.blackwellpublishing.com/book.asp?ref=063206482X or toorder the 2 volume set, go to:http://www.blackwellpublishing.com/book.asp?ref=0632064838. Provides a unique overview of the study of fish biology andecology, and the assessment and management of fish populations andecosystems. The first volume concentrates on aspects of fish biology andecology, both at the individual and population levels, whilst thesecond volume addresses the assessment and management of fishpopulations and ecosystems. Written by an international team of expert scientists andpractitioners. An invaluable reference tool for both students, researchers andpractitioners working in the fields of fish biology andfisheries.
Author: Cornelis Groot
Publisher: UBC Press
ISBN: 9780774803595
Category : Nature
Languages : en
Pages : 602
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Book Description
Pacific salmon are an important biological and economic resource of countries of the North Pacific rim. They are also a unique group of fish possessing unusually complex life histories. There are seven species of Pacific salmon, five occurring on both the North American and Asian continents (sockeye, pink, chum, chinook, and coho) and two (masu and amago) only in Asia. The life cycle of the Pacific salmon begins in the autumn when the adult female deposits eggs that are fertilized in gravel beds in rivers or lakes. The young emerge from the gravel the following spring and will either migrate immediately to salt water or spend one or more years in a river or lake before migrating. Migrations in the ocean are extensive during the feeding and growing phase, covering thousands of kilometres. After one or more years the maturing adults find their way back to their home river, returning to their ancestral breeding grounds to spawn. They die after spawning and the eggs in the gravel signify a new cycle. Upon this theme Pacific salmon have developed many variations, both between as well as within species. Pacific Salmon Life Histories provides detailed descriptions of the different life phases through which each of the seven species passes. Each chapter is written by a scientist who has spent years studying and observing a particular species of salmon. Some of the topics covered are geographic distribution, transplants, freshwater life, ocean life, development, growth, feeding, diet, migration, and spawning behaviour. The text is richly supplemented by numerous maps, illustrations, colour plates, and tables and there is a detailed general index, as well as a useful geographical index.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 11
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Book Description
"This review of fishing-related incidental mortality (FRIM) for Pacific salmon provides a series of foundational steps towards a better biological understanding and an overall risk assessment of FRIM. These include: a comprehensive review of factors linked to FRIM; a mortality rate evidence catalogue that amalgamates relevant mortality estimates; a synthesis of five key factors that are most relevant to derive and compare relative risks of FRIM across Pacific salmon fisheries; a risk assessment tool to combine the impacts of the key factors into relative mortality risk scores; and a discussion of possible anchoring methods to translate relative mortality risk scores into absolute mortality rate estimates. The provision of absolute FRIM rate estimates for individual fisheries was not within the scope of this review"--Conclusion, p. 8-9.
