Sample-based Fishery Surveys
Title | Sample-based Fishery Surveys PDF eBook |
Author | Constantine Stamatopoulos |
Publisher | Fao |
Pages | 156 |
Release | 2002 |
Genre | Business & Economics |
ISBN |
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.
Safety in Sampling
Title | Safety in Sampling PDF eBook |
Author | Constantine Stamatopoulos |
Publisher | Food & Agriculture Org. |
Pages | 108 |
Release | 2004 |
Genre | Business & Economics |
ISBN | 9789251050392 |
This paper considers issues of sampling accuracy when sample-based data collection operations are performed under operational constraints, a concern of fishery administrations with limited budgets and human resources. It focuses on the determination of safe sample size using classical statistical methods in light of specific target populations. The concepts and methods discussed apply equally to both marine and inland capture fisheries, and can be adapted to commonly used data collection systems.
Sample-based Fishery Surveys
Title | Sample-based Fishery Surveys PDF eBook |
Author | Constantine Stamatopoulos |
Publisher | Fao |
Pages | 148 |
Release | 2002 |
Genre | Business & Economics |
ISBN |
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.
Review of Recreational Fisheries Survey Methods
Title | Review of Recreational Fisheries Survey Methods PDF eBook |
Author | National Research Council |
Publisher | National Academies Press |
Pages | 202 |
Release | 2006-07-13 |
Genre | Technology & Engineering |
ISBN | 0309180252 |
Recreational fishing in the United States is an important social and economic component of many marine fisheries, with an estimated 14 million anglers making almost 82 million fishing trips in 2004. Although each individual angler typically harvests a small number of fish, collectively these sport fisheries can take a significant fraction of the yearly catch-in some cases more than commercial fisheries. For example, in 1999, recreational fishing accounted for 94% of the total catch of spotted sea trout, 76% of striped bass and sheephead, and 60 percent of king mackerel. It is important that systems used to monitor fishing catch are adequate for timely management of recreational fisheries. However, the large number of anglers and access points makes monitoring recreational fishing much more difficult than monitoring commercial fishing. This report reviews the types of survey methods used to estimate catch in recreational fisheries, including state/federal cooperative programs. The report finds that both telephone survey and onsite access components of the current monitoring systems have serious flaws in design or implementation. There are also several areas of miscommunication and mismatched criteria among designers of surveys, data collectors, and recreational fisheries. The report recommends that a comprehensive, universal sampling frame with national coverage should be established, and that improvements should be made in statistical analysis of the data collected and in the ways the data are communicated. A permanent and independent research group should be established and funded to evaluate the statistical design and adequacy of recreational fishery surveys and to guide necessary modifications or new initiatives.
Improving Fish Stock Assessments
Title | Improving Fish Stock Assessments PDF eBook |
Author | National Research Council |
Publisher | National Academies Press |
Pages | 194 |
Release | 1998-02-27 |
Genre | Technology & Engineering |
ISBN | 0309174406 |
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.
Angler Survey Methods and Their Applications in Fisheries Management
Title | Angler Survey Methods and Their Applications in Fisheries Management PDF eBook |
Author | Kenneth Hugh Pollock |
Publisher | |
Pages | 400 |
Release | 1994 |
Genre | Nature |
ISBN |
FAO Fisheries Technical Paper
Title | FAO Fisheries Technical Paper PDF eBook |
Author | |
Publisher | |
Pages | 56 |
Release | 1976 |
Genre | Fisheries |
ISBN |