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Book (series)Report of the FAO/RECOFI Workshop on Fishery Stock Indicators and Stock Status. Tehran, the Islamic Republic of Iran, 26-29 July 2009. 2011
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No results found.This document contains the report of the FAO/RECOFI Regional Workshop on Fishery Stock Indicators and Stock Status that was held in Tehran, Islamic Republic of Iran, from 26 to 29 July 2009. At the fourth session (2007) of RECOFI held in Jeddah, Kingdom of Saudi Arabia, the Secretariat prepared for the minimum requirements of stock assessment. The Commission recognized that those requirements were too complicated and noted a shortage of expertise. The effort was resumed at the second m eeting of the Working Group on Fisheries Management (WGFM) in 2008 where a shift to a pragmatic approach based on an Ecosystem Approach to Fisheries management (EAF) with adaptive procedures was recommended. The objective of the Workshop was to review the availability of data on the biology of the identified priority resources, catch and effort statistics for the relevant fisheries, other socio-economic statistics, results of stock assessments and other relevant research activities i n member countries; to identify the major gaps in knowledge and information, priority areas for regional cooperation and potential joint activities; and to formulate the RECOFI work program for regional cooperation in assessment of stocks and fishery status appraisal in the short and medium term. Employing a simple matrix of Susceptibility Productivity Analysis (PSA), the participants identified three areas of particular concern. These are the ecosystem-wide impact of shrimp trawls, th e exploitation of neritic demersal assemblages as well as sharks as indicators of the overall level impact of exploitation, and, thirdly, the stock status of a selected priority species, Scomberomorus commerson, for which historic data are available. The Workshop concluded with a set of recommendations to the WGFM that focused on improvement of data collection and monitoring capacity and members¿ contributions to scientific knowledge through joint activities. -
Book (stand-alone)The status of marine fishery stock assessments in the Asian region and the potential for a network of practitioners 2023
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No results found.The global fisheries sector in 2023 is now appreciably different compared to that of the 1970s, as are the dominant fish stocks that comprise most of the current global landings, their location and modes of their exploitation. The fisheries of South and Southeast Asia have also changed over this period and alongside their changing nature, there has been the continuous evolution of the tools and the requirements for calculating and presenting global sustainability information. This has transformed ability to assess fish stocks, use data-poor methodologies, assess multispecies fisheries and also take into account some of the complex interactions between target and non-target species and related ecosystem effects. The countries of the South and Southeast Asia region have not reported the status of stocks in a comprehensive manner to FAO and there is a need to understand how to access existing information and also build capacity to assess the fisheries of the region using appropriate tools. This review provides thematic papers on stock assessment approaches and their application to the region. The country analysis describes the data sources and assessment methods currently being applied in national fishery management areas and in smaller regions. The review contains recommendations on the needs for capacity building and how improved regional networking can provide support to the greater understanding and application of new or improved methods of stock assessment in the region. -
Book (series)Global trends in status and management of assessed stocks: achieving sustainable fisheries through effective management 2020
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No results found.This report provides an overview of the biological status of assessed stocks around the world and relates measures of stock status to the strength of fisheries management. Stock assessment outputs, consisting primarily of time series of abundance and fishing pressure relative to target reference points, were compiled for 548 marine fish and invertebrate stocks in the RAM Legacy Stock Assessment Database. Data summary methods included: global and regional mean trends of abundance and fishing pressure relative to target reference points; bivariate plots of relative abundance and fishing pressure; estimates of potential equilibrium yield foregone at current fishing pressure; and proportions of stocks in different biomass status categories. These measures of stock status were summarized at the global level as well as separated by 16 FAO Major Fishing Areas and ocean basin regions for comparison.
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