Manual On Sample Based Data Collection For Fisheries Assessment
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Manual On Sample Based Data Collection For Fisheries Assessment
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Author : Per Sparre
language : en
Publisher: Food & Agriculture Org.
Release Date : 2000-01-01
Manual On Sample Based Data Collection For Fisheries Assessment written by Per Sparre and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-01-01 with Technology & Engineering categories.
This manual deals with the practical implementation of a routine data collection programme. The data collection programme is developed through a top-down approach, from the identification of the objectives down to the practical recording and management of data obtained from the fishery. The issues are dealth with both through detailed discussion and by using simple examples. The examples are mostly based on situations in tropical fisheries, and in particular, experience has been drawn from developing a data collection programme in Viet Nam. The main questions addressed i n the manual are which fisheries data to collect, where and when to collect them. Only data from commercial marine capture fisheries are considered. The methodologies used are mainly appropriate for a tropical, developing county, with many small (artisanal) vessels and a few large (industrial) vessels. The methodology is the "sample-based approach". The data collection methodology presented attempts to utilize whatever information can be obtained in practice in a developing country.
Guidelines For Designing Data Collection And Sharing Systems For Co Managed Fisheries 1 Practical Guide
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Author : Ashley S. Halls
language : en
Publisher: Food & Agriculture Org.
Release Date : 2005
Guidelines For Designing Data Collection And Sharing Systems For Co Managed Fisheries 1 Practical Guide written by Ashley S. Halls and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Guidelines For Designing Data Collection And Sharing Systems For Co Managed Fisheries Practical Guide
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Author : Ashley S. Halls
language : en
Publisher: Food & Agriculture Org.
Release Date : 2005-01-01
Guidelines For Designing Data Collection And Sharing Systems For Co Managed Fisheries Practical Guide written by Ashley S. Halls and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-01-01 with Technology & Engineering categories.
The increasing shift towards co-management has prompted managers to reflect upon their new roles and reconsider information requirements. This technical paper, in two parts, is aimed to meet the growing need among co-managers for guidelines to help design and implement appropriate and cost-effective data collection programmes or systems. Part 1: Practical guide has been written specifically for co-managers and facilitators working in the field and offers simple and practical advice on helping stakeholders identify their information needs in relation to their management objectives and responsibilities, and developing collaborative ways of collecting and sharing the information in the most effective way. (Part 2 is ISBN 92-5-105410-X)
Sampling Methods Applied To Fisheries Science
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Author : Emygdio L. Cadima
language : en
Publisher: Food & Agriculture Org.
Release Date : 2005-01-01
Sampling Methods Applied To Fisheries Science written by Emygdio L. Cadima and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-01-01 with Technology & Engineering categories.
This study summarizes the main concepts involved in the assessment and management of fishing capacity. It discusses why capacity management and the problem of overcapacity have become key issues for fisheries management in the new millennium. The paper explains why overcapacity develops in the fishery and the role that fisheries management has played in contributing to this development in the past. Methods for estimating current and desired levels of capacity are discussed, and a range of potential indicators of overcapacity is described. The effectiveness of various capacity management programmes that have been applied in various fisheries around the world is also discussed, along with an explanation as to why many of these programmes have been ineffective. Potential management systems that have proven effective in reducing overcapacity are also presented and discussed.
Good Practices Guidelines For Data Collection Systems To Support Sustainable Inland And Recreational Fisheries In The Western Balkans Region
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Author : Visser, T.A.M, Valbo-Jorgensen, J., Chomo, V.
language : en
Publisher: Food & Agriculture Org.
Release Date : 2021-02-26
Good Practices Guidelines For Data Collection Systems To Support Sustainable Inland And Recreational Fisheries In The Western Balkans Region written by Visser, T.A.M, Valbo-Jorgensen, J., Chomo, V. and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-26 with Technology & Engineering categories.
These guidelines illustrate recommendations for good practices on data collection in Eastern European inland fisheries, and in particular the Western Balkan region, based on the methodologies and approaches used in countries throughout Europe and from FAO experience of inland fisheries in other regions. They provide guidance on the options available to inland fishery managers based on particular circumstances i.e. commercial fishing or recreational use, and they are especially relevant for assisting the economies-in transition in Europe, Caucasus and Central Asia. These guidelines are not an overarching work on inland fisheries management, nor do they provide advice on the environmental aspects or competing uses of inland water bodies. They focus on issues of data collection to support fishery managers whether they be government agencies, fishers or angler associations co-responsible for the management of inland resources in European rivers and lakes.
Better Data Collection In Shark Fisheries Learning From Practice
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 2021-07-07
Better Data Collection In Shark Fisheries Learning From Practice written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-07 with Technology & Engineering categories.
Some species and stocks of sharks, rays, skates, and chimaeras (termed shark in this review) are rapidly depleting due to climate change, land-based influences, and overfishing. These pressures, coupled with sharks’ low reproductive potential (slow growth and delayed maturation; long reproductive cycles; low fecundity; and long lifespans) place sharks in a risk profile that is more akin to mammals on land than fish in the ocean. The development of policy, and the delivery of management and conservation measures regulating the use, international trade, and capture of sharks (whether as a targeted species or as bycatch in fisheries), is hindered by gaps in basic knowledge – a knowledge that is required in order to get a clear sense of their status in real-time. Many countries are establishing or strengthening monitoring across shark value chains to overcome these shortfalls in information. This document reviews what shark fisheries data is being collected, highlighting the opportunities and constraints in collecting information on sharks in fisheries, based on practical experience. It includes information from 28 surveys across 19 countries: 9 in the Mediterranean, 5 in Africa, 3 in Asia, and 1 in Oceania. Interviews were conducted with data collectors and managers across the entirety of the survey process, while data collection variables were documented in order to inform those interested in the collection, provision, and exchange of shark information on common practices and their commonalities. The review identifies standardized information metrics which, if collected more generally, would strengthen the opportunity for harmonized reporting and cross-comparability across surveys. In addition – and in order to assess the status quo – the current data collection requirements of management measures applied to sharks by regional fisheries management organizations (RFMOs) were reviewed, including “no retention” measures. Finally, the review proposes a list of the minimum standard measurements and common life-history parameters required to support the assessment of shark stocks in fisheries.
Guidelines For Designing Data Collection And Sharing Systems For Co Managed Fisheries
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Author :
language : en
Publisher:
Release Date : 2005
Guidelines For Designing Data Collection And Sharing Systems For Co Managed Fisheries written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Fisheries categories.
Manual Of Fisheries Sampling Surveys
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Author : Evelina Sabatella
language : en
Publisher: Food & Agriculture Org.
Release Date : 2004-01-01
Manual Of Fisheries Sampling Surveys written by Evelina Sabatella and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-01-01 with Technology & Engineering categories.
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.
Handbook For Data Collection On Recreational Fisheries In The Mediterranean And The Black Sea
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Author : Grati, F., Carlson, A., Carpentieri, P. & Cerri, J.
language : en
Publisher: Food & Agriculture Org.
Release Date : 2021-07-06
Handbook For Data Collection On Recreational Fisheries In The Mediterranean And The Black Sea written by Grati, F., Carlson, A., Carpentieri, P. & Cerri, J. and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-06 with Technology & Engineering categories.
Marine recreational fisheries are an integral part of Mediterranean and Black Sea coastal life and are commonly practiced throughout the region. Recreational fisheries also represent an important driver of coastal tourism, which constitutes one of the region’s most important maritime sectors in terms of gross value added and employment. However, despite their ubiquity and potential socio-economic contribution, recreational fisheries are a data-poor sector and can vary widely from one country to another, thus impairing proper consideration of the recreational fisheries sector in policy-making and undermining efforts towards sustainable fisheries management at the regional level. The main goal of this handbook is therefore to provide a clear methodological framework to allow Mediterranean and Black Sea countries to implement suitably harmonized sampling and survey monitoring schemes for recreational fisheries. This handbook establishes a minimum set of necessary information for monitoring recreational fisheries, while, at the same time, allowing for flexibility to accommodate national specificities and data collection needs. It also provide guidance on the data analysis process as well as advice to successfully engage stakeholders in the data collection process.
Virtual Population Analysis
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Author : Hans Lassen
language : en
Publisher: Food & Agriculture Org.
Release Date : 2001-01-01
Virtual Population Analysis written by Hans Lassen and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-01-01 with Fish populations categories.
Virtual population analysis (VPA) is a widely used model for the analysis of fished populations. While there are many VPA techniques, they vary in the way they use data and fit the model rather than in the form of the model itself. This manual describes the common VPA model and the assumptions on which it is based, together with descriptions of associated diagnostic procedures and common reference points