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Author: Donald R. Gunderson
Publisher: John Wiley & Sons
ISBN: 9780471547358
Category : Technology & Engineering
Languages : en
Pages : 278
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Book Description
Commences with a discussion of biological and statistical considerations involved in designing an effective survey. Examines sampling equipment and techniques used in conducting direct surveys with equal attention to trawl, acoustic, ichthyoplankton and sighting studies. Alternative approaches used in each type of survey are reviewed and numerous case histories illustrate successful applications.
Author: Donald R. Gunderson
Publisher: John Wiley & Sons
ISBN: 9780471547358
Category : Technology & Engineering
Languages : en
Pages : 278
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Book Description
Commences with a discussion of biological and statistical considerations involved in designing an effective survey. Examines sampling equipment and techniques used in conducting direct surveys with equal attention to trawl, acoustic, ichthyoplankton and sighting studies. Alternative approaches used in each type of survey are reviewed and numerous case histories illustrate successful applications.
Author: United States. Congress. Senate. Committee on Commerce. Subcommittee on Merchant Marine and Fisheries
Publisher:
ISBN:
Category : Fish trade
Languages : en
Pages : 44
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Book Description
Considers S.J. Res. 29, to direct the Bureau of Commercial Fisheries to conduct a survey of the marine and fresh-water commercial fishery resources as required under the Geneva Fishery Convention.
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: United States. Congress. Senate. Commerce
Publisher:
ISBN:
Category :
Languages : en
Pages : 42
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Book Description
Author: Douglas Clyde Wilson
Publisher: Springer Science & Business Media
ISBN: 9401733236
Category : Science
Languages : en
Pages : 324
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Book Description
For two decades the idea of governments and fishers working together to manage fisheries has been advocated, questioned, disparaged and, most importantly, attempted in fisheries from North and South America through Europe, Africa, Asia and Oceania. This book is the first time these experiences have been pulled together in a single volume, summarized and explained. The Fisheries Co-management Experience begins with a review of the intellectual foundations of the co-management idea from several professional perspectives. Next, fisheries researchers from six global regions describe what has been happening on the ground in their area. Finally, the volume offers a set of reflections by some of the best authors in the field. The end result describes both the state-of-the-art and emerging issues for one of the most important trends in natural resources management.
Author: United States. Congress. House. Merchant Marine and Fisheries
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
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Book Description
Author: Constantine Stamatopoulos
Publisher: Fao
ISBN:
Category : Business & Economics
Languages : en
Pages : 148
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Book Description
This handbook summarises the experience gained over recent years in fishery statistical development by the Fishery Information, Data and Statistics Unit of the FAO, and provides guidance for developing and implementing cost-effective and sustainable fishery surveys. The methodological and operational concepts discussed apply equally to marine and inland capture fisheries. The emphasis is placed on the understanding and interpretation of the statistics, rather than on the computations producing them.
Author: Xinjun Chen
Publisher: Springer Nature
ISBN: 9811669481
Category : Science
Languages : en
Pages : 191
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Book Description
This auto-translation book overviews the fish population and its research methods, help readers in understanding the concept of fish population and population identification. It divides into seven chapters according to the characteristics of the subject and the development results. Based on a systematic introduction to the basic concepts and research contents of the biology of fishery resources, the book focuses on the introduction of fish populations and research methods, life history division and early development identification, age identification and growth research, the division of sexual maturity, the determination of reproductive habits and fecundity, feeding characteristics and research methods of fish, and the mechanism of fish colony and migration. Through the study of this course, we can master the basic theory and methods of fish biology research and lay a solid foundation for future researches on fishery resources. This book can be used as a reference book for undergraduates and postgraduates who study fishery resources, as well as for those who are engaged in fishery and marine research. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content.
Author: R. A. Hall
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 322
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Book Description
Author: Xinjun Chen
Publisher: Springer Nature
ISBN: 9813343281
Category : Science
Languages : en
Pages : 440
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Book Description
Fisheries resources are an important component of natural resources. It is an important source of high-quality animal protein and food for humans, which provides employment, economic benefits and social welfare for people engaged in fishing activities. It also has played an important role in food safety, economic development, and foreign trade. Fisheries resources economics is an important branch of both applied economics and resource economics. Its research object is fishery resources and its economic problems. The economics of fishery resources is to focus on the relationship between the demand for human economic activities and the supply of fishery resources, as well as between fishery resources and its development. This book expounds the reasons for the economic problems of fishery resources and the theoretical principles for solving them, so as to reveal the objective rules of the allocation of fishery resources in different regions and at different times, to coordinate the relationship between the utilization of fishery resources and economic development, and to realize the sustainable development of fishery economy. This book will also provide learning materials for undergraduates, graduate students and practitioners engaged in fishery resources development and scientific management.
