Download or read book Methodology Manual Measurement of Fishing Gear Selectivity written by Dickson, W and published by Fisheries and Oceans. This book was released on 1995-01-01 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fishing selectivity can be defined as the ability to target and capture fish by species, size, or sex (or a combination of these) during harvesting operations, allowing all incidental by-catch to be released unharmed. This manual outlines the steps and processes necessary to monitor selectivity demonstrations, collect data on selectivity, and validate scientific research on selectivity under normal fishing operations. Some mathematical and statistical examples are shown to clarify the methodologies and to facilitate understanding and application. The manual is intended to provide assistance to technicians and senior fishing crew in the planning, execution, and reporting of size and species trials and demonstrations with mobile and fixed gears. Sections of the manual cover measurement of selectivity, experiment design, experimental methods, data analysis, and the reporting of results. Case studies of experiments using both fixed and mobile gear are included.

Download or read book Manual of Methods of Measuring the Selectivity of Towed Fishing Gears written by D. A. Wileman and published by . This book was released on 1996 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book M thodes pour mesurer la s lectivit des engins de p ches manuel i e p ches manuel de methodol o gie et protocoles sp cifiques aux engins written by Canada. Ministère des pêches et des océans and published by Pêches et océans Canada. This book was released on 1999 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Fisheries Responsible Summary Methods of Measuring Fishing Gear Selectivity written by Canada. Department of Fisheries and Oceans and published by . This book was released on 1999 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manual on Estimation of Selectivity for Gillnet and Longline Gears in Abundance Surveys written by Holger Hovgêrd and published by Food & Agriculture Org.. This book was released on 2008-04-29 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual defines methods for estimating selectivity of gillnet and longline gears, with particular reference to the use of these gears in abundance surveys. The manual illustrates how gear design, the basic concepts of size selection and fish morphometric data can be used to model selectivity. Statistical estimation methods are described in detail, and examples given of their application in spreadsheets. The efficient use of these gears in abundance and research surveys is also discussed. Although the manual concentrates on gillnets and longlines, the methods given are general enough to be relevant to any research involving gear selectivity

Download or read book Papers Presented at the Expert Consultation on Sustainable Fishing Technologies and Practices written by Andrew R. Smith and published by Food & Agriculture Org.. This book was released on 2000 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: The publication contains the 17 invited papers which were presented and discussed at the Expert Consultation on Sustainable Fishing Technologies and Practices held in St. John's, Newfoundland, Canada (1-6 March 1998). The papers cover four broad categories. The first section deals with the methodologies for development and assessment of the effectiveness of fishing gears. The second section deals with the review of impact assessments of fishing activities on the marine habitat. Representative examples of sustainable fishing technologies and practices are dealt with in the third part and finally the fourth and final section deals with the introduction and implementation of sustainable technologies and practices.

Download or read book Selectivity of Fishing Gear written by J. A. Pope and published by . This book was released on 1975 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Expert Consultation on Sustainable Fishing Technologies and Practices written by and published by Food & Agriculture Org.. This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manual of Methods for Fish Stock Assessment Part III selectivity of Fishing Gear written by and published by . This book was released on 1977 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manual of Methods for Fish Stock Assessment written by J. A. Pope and published by . This book was released on 1975 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manual of Methods for Fish Stock Assessment Part III Selectivity of Fishing Gear written by J. A. Pope and published by . This book was released on 1966 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fisheries Technologies for Developing Countries written by National Research Council and published by National Academies Press. This book was released on 1988-02-01 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: In developing countries, traditional fishermen are important food contributors, yet technological information and development assistance to third-world nations often focuses on agriculture and industrial fishing, without addressing the needs of independent, small-scale fishermen. This book explores technological considerations of small-scale, primitive fishing technologies, and describes innovative, relatively inexpensive methods and tools that have already been successfully applied in developing countries. It offers practical information about all aspects of small-scale fishing, including boat design and construction, fishing methods and gear, artificial reef construction and fish aggregating devices, techniques for coastal mariculture, and simple methods for processing and preserving fish once they are caught. Fisheries Technologies for Developing Countries is illustrated throughout with photographs of the devices and construction methods described in the text.

Download or read book Manual of Methods for Fish Stock Assessment written by and published by . This book was released on 1975 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishing Gear Selectivity written by D. N. MacLennan and published by . This book was released on 1992 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book What is the Code of Conduct for Responsible Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The actual Code of conduct is also available (1996) (ISBN 9251038341).

Download or read book Tropical Shrimp Fisheries written by P. Vendeville and published by Conran Octopus. This book was released on 1990 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Catching Methods of the World written by Otto Gabriel and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the sixteen years since the last edition of Von Brant’s classic work was published, fishing and fisheries have undergone vast changes. Not only has there been great progress in the development of new tools, materials and techniques, but the industry has seen an increasing need to address controversial issues such as declining fish stocks, enormous quantities of bycatch and discard and the impact of towed fishing gear on the environment. Fully revised and updated to reflect such changes, the fourth edition of this widely read and popular book offers: A unique, comprehensive survey of the evolution of fishing methods throughout the world Approximately 750 illustrations showing the extensive range of methods, techniques and equipment used in fishing across the globe Fishing gear classified according to the FAO system Additional chapters: Fishing Effects on Fish Stocks and Environment and Fishery and Gear Research All researchers, fisheries scientists, fisheries students, administrators and libraries in universities and research establishments where fish and fisheries are studied and taught will find this book a valuable addition to their shelves. Commercial and sports fishermen will also find Fish Catching Methods of the World a fascinating and vital reference.