Incorporating Uncertainty Into Fishery Models PDF Download

Author: Jim M. Berkson
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 212

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Book Description
This book examines the full range of approaches for incorporating uncertainty or variability into fisheries work and ecosystem management.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309174406
Category : Technology & Engineering
Languages : en
Pages : 194

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Book Description
Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries dataâ€"for example underreporting or changes in the likelihood that fish can be caught with a given type of gearâ€"can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309055261
Category : Technology & Engineering
Languages : en
Pages : 189

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Book Description
Fluctuations and declines in marine fish populations have caused growing concern among marine scientists, fisheries managers, commercial and recreational fishers, and the public. Sustaining Marine Fisheries explores the nature of marine ecosystems and the complex interacting factors that shape their productivity. The book documents the condition of marine fisheries today, highlighting species and geographic areas that are under particular stress. Challenges to achieving sustainability are discussed, and shortcomings of existing fisheries management and regulation are examined. The volume calls for fisheries management to adopt a broader ecosystem perspective that encompasses all relevant environmental and human influences. Sustaining Marine Fisheries offers new approaches to building workable fisheries management institutions, improving scientific data, and developing management tools. The book recommends ways to change current practices that encourage overexploitation of fish resources. It will be of special interest to marine policymakers and ecologists, fisheries regulators and managers, fisheries scientists and marine ecologists, fishers, and concerned individuals.

Author: Colin W. Clark
Publisher: Cambridge University Press
ISBN: 0521840058
Category : Nature
Languages : en
Pages : 270

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Book Description
New management programs are suggested, to improve the state of the world's fisheries.

Author: Charles T.T. Edwards
Publisher: Routledge
ISBN: 1317615166
Category : Nature
Languages : en
Pages : 468

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Book Description
A key goal of fisheries management is to regulate extractive pressure on a resource so as to ensure social, economic and ecological sustainability. This text provides an accessible entry point for students and professionals to management science as developed in fisheries, in order to facilitate uptake of the latest ideas and methods. Traditional management approaches have relied upon a stock assessment based on existing understanding of resource status and dynamics, and a prediction of the likely future response to a static management proposal. However all such predictions include an inherent degree of uncertainty, and the last few decades have seen the emergence of an adaptive approach that uses feedback control to account for unknown future behaviour. Feedback is achieved via a control rule, which defines a relationship between perceived status of the resource and a management action. Evaluations of such rules usually include computer simulation testing across a broad range of uncertainties, so that an appropriate and robust rule can be selected by stakeholders and managers. The book focuses on this approach, which is usually referred to as Management Strategy Evaluation. The book is enriched by case study examples from different parts of the world, as well as insights into the theory and practice from those actively involved in the science of fisheries management.

Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251038437
Category : Technology & Engineering
Languages : en
Pages : 224

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Book Description

Author: J.C.J.M. van den Bergh
Publisher: Springer Science & Business Media
ISBN: 1402040598
Category : Business & Economics
Languages : en
Pages : 261

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Book Description
This book offers an environmental-economic analysis of exploited ecosystems with a clear policy orientation. The study moves beyond traditional economic fishery analysis in two respects. First, several theoretical and numerical models are offered that combine economic and ecological descriptions of fisheries. Second, valuation and stakeholder concerns are addressed in empirical analyses employing both qualitative and quantitative approaches. The approaches, models and policy insights are sufficiently general and innovative to interest a broad audience.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 464

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Author: Jeffrey C. Carrier
Publisher: CRC Press
ISBN: 0203491319
Category : Nature
Languages : en
Pages : 614

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Book Description
Winner of Choice Magazines Outstanding Academic Title award, January 2005! Sharks and their relatives are the subjects of tremendous interest. The publics fascination is influenced by their roles in movies and popular literature, while the media races to cover stories of predators endangering helpless humans. The alarming threat to shark popul

Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 500

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