Length-based Methods in Fisheries Research

Length-based Methods in Fisheries Research
Author: Daniel Pauly
Publisher: WorldFish
Total Pages: 463
Release: 1987
Genre: Fisheries
ISBN: 9711022281

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Specific aims of the conference were: to identify the specific features of sampling schemes used to obtain length-frequency data for stock assessment; to review length-based methodologies for stock assessment of fish and aquatic invertebrates, with particular reference to their precision and accuracy; to review and test computer programs implementing length-based methods.

Fishery Bulletin

Fishery Bulletin
Author:
Publisher:
Total Pages: 204
Release: 1999
Genre: Fisheries
ISBN:

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A Review of Length-based Approaches to Assessing Fish Stocks

A Review of Length-based Approaches to Assessing Fish Stocks
Author: J. A. Gulland
Publisher: Food & Agriculture Org.
Total Pages: 116
Release: 1992
Genre: Technology & Engineering
ISBN:

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This document reviews the several fish stock assessment methods based on length-frequency analysis. Emphasis is placed on sampling and collection of length-frequency data, to the estimation of population parameters such as growth, mortality and recruitment and the estimation of catch selectivity. Attention is given to the conversion of length to age using age-length keys, slicing length-frequency composition, and using modes. It reviews long-and short-term effects of changes in selection and fishing mortality, and discusses methods for long-term assessments and for short-term projections. The manual gives several examples of the most common methods used and stresses the advantages of using personal computers and the most recent software for data processing and analysis.

Stock Assessment

Stock Assessment
Author: Vincent F. Gallucci
Publisher: CRC Press
Total Pages: 538
Release: 2023-05-31
Genre: Science
ISBN: 1000940969

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Stock Assessment: Quantitative Methods and Applications for Small Scale Fisheries is a book about stock assessment as it is practiced. It focuses on applications for small scale or artisanal fisheries in developing countries, however it is not limited in applicability to tropical waters and should also be considered a resource for students of temperate fishery management problems. It incorporates a careful sample design, various mathematical models as a basis for predicting consequences for stock exploitation, and discusses the impact of exploitation on non-targeted species. This was a unique concept involving a collaborative effort between U.S. and host country scientists to address issues of regional and global concern through innovative research. Unlike other books on stock assessment that show mathematical models, this is the only book of its kind that discusses how an assessment is carried out. It looks at the field as a whole and includes sampling, age determination and acoustics. The book represents the culmination of a nine-year program financed by the United States Agency for International Development to provide new or improved methods of stock assessment for artisanal fisheries.

On the Sex of Fish and the Gender of Scientists

On the Sex of Fish and the Gender of Scientists
Author: D. Pauly
Publisher: Springer Science & Business Media
Total Pages: 276
Release: 1994-07-31
Genre: Science
ISBN: 9780412595400

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Daniel Pauly is the most widely cited fisheries scientist of his generation. On the Sex of Fish and the Gender of Scientists comprises an edited and updated collection of 27 of Daniel Pauly's essays, spanning a great range of exciting and sometimes controversial topics, many of them breaking new scientific ground.

FAO-ICLARM stock assessment tools

FAO-ICLARM stock assessment tools
Author: F. C. Gayanilo
Publisher: Food & Agriculture Org.
Total Pages: 280
Release: 1997
Genre: Fish stock assessment
ISBN: 9789251040478

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Fisheries Biology, Assessment and Management

Fisheries Biology, Assessment and Management
Author: Michael King
Publisher: John Wiley & Sons
Total Pages: 484
Release: 2013-04-16
Genre: Technology & Engineering
ISBN: 111868804X

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This excellent second edition of Fisheries Biology, Assessment and Management, has been fully updated and expanded, providing a book which is an essential purchase for students and scientists studying, working or researching in fisheries and aquatic sciences. In the same way that excessive hunting on land has threatened terrestrial species, excessive fishing in the sea has reduced stocks of marine species to dangerously low levels. In addition, the ecosystems that support coastal marine species are threatened by habitat destruction, development and pollution. Open access policies and subsidised fishing are placing seafood in danger of becoming a scarce and very expensive commodity for which there is an insatiable demand. Positive trends include actions being taken to decrease the incidental catches of non-target species, consumer preferences for seafood from sustainable fisheries, and the establishment of no-take areas that provide refuges for marine species. But there is an urgent need to do more. Because there is an increasing recognition of the need to manage ecosystems as well as fish stocks, this second edition of this bestselling text book includes an additional chapter on marine ecology. Chapters on parameter estimation and stock assessment now include step-by-step instructions on building computer spreadsheet models, including simulations with random variations that realistically emulate the vagaries of nature. Sections on ecosystem management, co-management, community-based management and marine protected areas have been expanded to match the increased interest in these areas. Containing many worked examples, computer programs and numerous high quality illustrations, Fisheries Biology, Assessment and Management, second edition, is a comprehensive and essential text for students worldwide studying fisheries, fish biology, aquatic and biological sciences. As well as serving as a core text for students, the book is a superb reference for fisheries and aquatic researchers, scientists and managers across the globe, in both temperate and tropical regions. Libraries in all universities where fish biology, fisheries, aquatic sciences and biological sciences are studied and taught will need copies of this most useful new edition on their shelves. Supplementary material is available at: www.blackwellpublishing.com/king

FAO-ICLARM Stock Assessment Tools II

FAO-ICLARM Stock Assessment Tools II
Author: F. C. Gayanilo
Publisher: Food & Agriculture Org.
Total Pages: 176
Release: 2005
Genre: Computers
ISBN: 9789251053003

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The revised version of FiSAT (FiSAT II) is a program package consisting of methodologies for use with computers, enabling users to formulate some management options for fisheries, especially in data-sparse, tropical contexts. FiSAT II was developed mainly for the analysis of length-frequency data, but also enables related analyses, of size-at-age, catch-at-age, selection and other data typically collected for tropical fish stock assessment. This volume is complemented by "FiSAT - FAO-ICLARM stock assessment tools. Vol. 2: Reference manual" ISBN 92-5-104047-8.