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Sample-based Fishery Surveys

Sample-based Fishery Surveys
Author: Constantine Stamatopoulos
Publisher: Fao
Total Pages: 148
Release: 2002
Genre: Business & Economics
ISBN:

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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.


Improving Fish Stock Assessments

Improving Fish Stock Assessments
Author: Committee on Fish Stock Assessment Methods
Publisher: National Academies Press
Total Pages: 194
Release: 1998-03-13
Genre: Technology & Engineering
ISBN: 0309524326

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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 data--for example underreporting or changes in the likelihood that fish can be caught with a given type of gear--can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.


Review of Recreational Fisheries Survey Methods

Review of Recreational Fisheries Survey Methods
Author: National Research Council
Publisher: National Academies Press
Total Pages: 202
Release: 2006-08-13
Genre: Technology & Engineering
ISBN: 030910193X

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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.


Safety in Sampling

Safety in Sampling
Author: Constantine Stamatopoulos
Publisher: Food & Agriculture Org.
Total Pages: 108
Release: 2004
Genre: Business & Economics
ISBN: 9789251050392

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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.


Report of the CFU/FAO Fisheries Statistics and Data Management Workshop

Report of the CFU/FAO Fisheries Statistics and Data Management Workshop
Author:
Publisher: Food & Agriculture Org.
Total Pages: 44
Release: 2004
Genre: Business & Economics
ISBN: 9789251051306

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This is a report on the guidance given to fisheries data-managers on improving their collecting, processing, storage and reporting capabilities of information on the status and trends of their marine capture fisheries, provided by the CARICOM Fisheries Unit and the FAO. There was also proposals and discussion on expanding the data collection on national fisheries to include social and economic information.


Manual of Fisheries Sampling Surveys

Manual of Fisheries Sampling Surveys
Author: Evelina Sabatella
Publisher: Food & Agriculture Org.
Total Pages: 56
Release: 2004
Genre: Business & Economics
ISBN: 9789251050934

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This manual contains guidance on data collection methods for developing socio-economic indicators, and it can be used to facilitate and simplify reporting under international conventions and agreements on matters relating to the sustainable fisheries development. The methodologies can be applied to fisheries at many different levels, from individual fisheries and coastal management units to a global level, and it aims to encourage consistent use of statistical methods in data collection.


Review of the Marine Recreational Information Program

Review of the Marine Recreational Information Program
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
Total Pages: 199
Release: 2017-08-24
Genre: Science
ISBN: 0309453747

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The National Marine Fisheries Service (NMFS) of the National Oceanic and Atmospheric Administration (NOAA) is responsible for collecting information on marine recreational angling. It does so principally through the Marine Recreational Information Program (MRIP), a survey program that consists of an in-person survey at fishing access sites and a mail survey, in addition to other complementary or alternative surveys. Data collected from anglers through MRIP supply fisheries managers with essential information for assessing fish stocks. In 2006, the National Research Council provided an evaluation of MRIP's predecessor, the Marine Recreational Fisheries Statistics Survey (MRFSS). That review, Review of Recreational Fisheries Survey Methods, presented conclusions and recommendations in six categories: sampling issues; statistical estimation issues; human dimensions; program management and support; communication and outreach; and general recommendations. After spending nearly a decade addressing the recommendations, NMFS requested another evaluation of its modified survey program (MRIP). This report, the result of that evaluation, serves as a 10-year progress report. It recognizes the progress that NMFS has made, including major improvements in the statistical soundness of its survey designs, and also highlights some remaining challenges and provides recommendations for addressing them.


Handbook for fisheries socio-economic sample survey:

Handbook for fisheries socio-economic sample survey:
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
Total Pages: 136
Release: 2018-11-08
Genre: Nature
ISBN: 9251096945

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This document provides tested and standardized tools to collect the data needed for a socio-economic assessment of a fishery, including sampling design, quality checks and how to transform inputs into statistics.


Data and Management Strategies for Recreational Fisheries with Annual Catch Limits

Data and Management Strategies for Recreational Fisheries with Annual Catch Limits
Author: National Academies of Sciences Engineering and Medicine
Publisher:
Total Pages:
Release: 2022-04-21
Genre:
ISBN: 9780309671576

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Marine recreational fishing is a popular activity enjoyed by more than 9 million Americans annually and is a driver of the American ocean-or blue-economy. To ensure that fish populations are not overexploited, the NOAA Fisheries' Marine Recreational Information Program (MRIP) monitors recreational catch through a variety of in-person, telephone, mail-in, and other surveys. NOAA Fisheries' management of recreational catch also must take into account annual catch limits (ACLs) established to prevent overfishing for all managed species in federal waters. While MRIP has worked to improve recreational catch surveys over the past decade, the surveys were never designed to meet the demands of in-season management of ACLs. In some cases, estimates of harvest have triggered accountability measures such as early season closures and reductions in future recreational ACLs, which have been a source of contention with the recreational fishing community. This report presents approaches for optimizing MRIP data and complementary data for in-season management and considers alternatives for managing recreational fisheries with ACLs to better serve both social and economic management objectives.