Download or read book The status of marine fishery stock assessments in the Asian region and the potential for a network of practitioners written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2023-12-12 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Global trends in status and management of assessed stocks achieving sustainable fisheries through effective management written by Melnychuk, M. C., Baker, N., Hively, D., Mistry, K., Pons, M., Ashbrook, C. E., Minto, C., Hilborn, R., Ye, Y. and published by Food & Agriculture Org.. This book was released on 2020-11-20 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Assessment management and future directions for coastal fisheries in Asian countries written by Silvestre, G. et al and published by WorldFish. This book was released on 2003-12-08 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Asia, the fisheries sector is important in terms of food security, livelihoods and foreign exchange earnings. However, as in many parts of the world, there are signs that capture fisheries are fully exploited or overfished. Management of fisheries in the region is often hampered by lack of information on the status of fisheries in terms of biological, social, economic, policy and governance aspects. This regional project documents an alarming decline on coastal fishery resources, based on historic research surveys in South and Southeast Asia. Socio-economic analyses and policy reviews highlight the importance of the fisheries sector but also the challenges facing it. Potential interventions to improve fisheries management in the countries are outlined and defined with environmental, socioeconomic and institutional objectives.
Download or read book Review of the State of World Marine Fishery Resources written by Marine Resources Service (United Nations) and published by Food & Agriculture Org.. This book was released on 2005 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication updates the regular reviews of the state of the world's marine fishery resources, based mainly on official catch statistics throughout 2002 and relevant stock assessment and other complementary information available until 2004. It considers the global situation and major trends of world marine capture fish production, with detailed information for each FAO statistical area about catches and current state of exploitation, major trends and developments and stock assessment work undertaken in support of fisheries management. Other issues covered include: tunas and tuna-like species resources, world squid resources, deepwater fisheries, and long-term climate variability.
Download or read book Improving Fish Stock Assessments written by Committee on Fish Stock Assessment Methods and published by National Academies Press. This book was released on 1998-03-13 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1970-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Download or read book Status and Management of Tropical Coastal Fisheries in Asia written by Geronimo Silvestre and published by WorldFish. This book was released on 1997 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stock Assessment for Fishery Management written by Daniel D. Hoggarth and published by Food & Agriculture Org.. This book was released on 2006 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication contains guidelines for fish stock assessment and fishery management using the software tools and other outputs developed by the UK Department for International Development's Fisheries Management Science Programme (FMSP) from 1992 to 2004. It includes a CD-ROM with the installation files for each of the four FMSP software tools: LFDA (Length Frequency Data Analysis), CEDA (Catch Effort Data Analysis), YIELD and ParFish (Participatory Fisheries Stock Assessment).
Download or read book Priorities in Aquatic Resources Research in the Asia Pacific Region written by Modadugu V. Gupta and published by WorldFish. This book was released on 1999 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Techno economic performance review of selected fishing fleets in Asia written by Van Anrooy, R., Mukherjee, R., Wakamatsu, H., Song, L., Muawanah, U., Jin Cha, B., Narayana Kumar, R., Parappurathu, S., Yadava, Y.S., Tietze, U. and published by Food & Agriculture Org.. This book was released on 2020-10-26 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: This techno-economic performance review of selected fishing fleets in Asia presents the findings of six country level studies of fishing fleets in Bangladesh, China, India, Indonesia, Japan and the Republic of Korea. The review includes financial and economic information of 27 major fishing fleet segments, including trawlers, gillnetters, long liners, jiggers, purse seiners, as well as pole and line fishing vessels. An analysis of the costs and earnings data of these important fishing fleet segments in Asia was carried out using national statistics of 2017 for the Japanese and the Korean fleet segments and 2018-19 survey data for the other countries. Eighty-nine percent of the 27 fishing fleet segments reported positive net cash flows. Seventy percent of the fishing fleets realized net profit margins of more than 10 percent. Eighty-one percent of the fishing fleets reported positive results in terms of their capital productivity, as theirs returns on fixed tangible assets (ROFTAs) were positive.The review shows that investments in fishing vessels and fishing operations of these major Asian fishing fleets are generally profitable. Marine capture fishing is a financially viable economic activity in all six major fishing nations included in the review. It generates enough income to cover depreciation costs, interest and loan repayments, and provides sufficient financial resources for reinvestment. Nearly 60 percent of the fishing fleets generated returns on investment (ROIs) of 15 percent and higher, which signals an attractive sector for investments. The total gross value added (GVA) of the 27 fishing fleets to the Asian regional economy was substantial and estimated at around USD 66 billion. The review also reveals a need for adequate management measures, including fleet capacity management plans, to improve the status of fish stock in the region and maintain a healthy and profitable fishing sector.
Download or read book Development Potential of Selected Fishery Products in the Regional Member Countries of the Asian Development Bank Report on Asian fishery products written by South China Sea Fisheries Development and Coordinating Programme and published by . This book was released on 1977 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developing New Approaches to Global Stock Status Assessment and Fishery Production Potential of the Seas written by Andrew Alan Rosenberg and published by Food & Agriculture Organization of the UN (FAO). This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stock status is a key parameter for evaluating the sustainability of fishery resources and developing corresponding management plans. Unfortunately, the majority of stocks are not assessed, often as a result of insufficient data and the lack of resources needed to execute formal stock assessments. This working group focused on two approaches to estimating fisheries status: one based on single stock status and the other based on ecosystem production.
Download or read book Popular Mechanics written by and published by . This book was released on 2000-01 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.
Download or read book The State of World Fisheries and Aquaculture 2018 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-07-10 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2018 edition of The State of World Fisheries and Aquaculture emphasizes the sector’s role in achieving the 2030 Agenda for Sustainable Development and the Sustainable Development Goals, and measurement of progress towards these goals. It notes the particular contributions of inland and small-scale fisheries, and highlights the importance of rights-based governance for equitable and inclusive development. As in past editions, the publication begins with a global analysis of trends in fisheries and aquaculture production, stocks, processing and use, trade and consumption, based on the latest official statistics, along with a review of the status of the world’s fishing fleets and human engagement and governance in the sector. Topics explored in Parts 2 to 4 include aquatic biodiversity; the ecosystem approach to fisheries and to aquaculture; climate change impacts and responses; the sector’s contribution to food security and human nutrition; and issues related to international trade, consumer protection and sustainable value chains. Global developments in combating illegal, unreported and unregulated fishing, selected ocean pollution concerns and FAO’s efforts to improve capture fishery data are also discussed. The issue concludes with the outlook for the sector, including projections to 2030. As always, The State of World Fisheries and Aquaculture aims to provide objective, reliable and up-to- date information to a wide audience, including policy-makers, managers, scientists, stakeholders and indeed all those interested in the fisheries and aquaculture sector.
Download or read book Fisheries Exploitation in the Indian Ocean written by Dennis Rumley and published by Institute of Southeast Asian Studies. This book was released on 2009 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book aims to further the debate on the impacts of fisheries policies in the Indian Ocean Region in order to facilitate a new regional policy direction. A key argument of the volume is that ecologically sustainable and socially just development and management of Indian Ocean fisheries require a paradigm shift in the perceptions and policies of major stakeholders. A central policy challenge is to identify a collective regional interest for fisheries and accordingly the development of integrated management policies that link ecology and society and which incorporate individuals, communities, agencies, states and regimes into a holistic cooperative endeavour. Successful ocean governance therefore requires greater inter-state and inter-agency consultation and cooperation, an improvement in linking national initiatives to local action, increased participation of local government and local communities and the enhancement of local capability. In order to achieve this overall goal requires either the enhancement of existing regional institutions or the creation of a new regional body. Institute of Southeast Asian Studies, Singapore, and Indian Ocean Research Group (IORG), co-publication. ISEAS has worldwide distribution rights.
Download or read book Report of the Fourth Session of the Working Party on Assessment of Marine Fishery Resources Paipa Department of Boyac Colombia 29 October 2 November 1984 written by Western Central Atlantic Fishery Commission. Working Party on Assessment of Marine Fishery Resources. Session and published by . This book was released on 1985 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three informal working groups, established during the previous meeting, discussed specifically: (i) shrimp and fish resources of the continental shelves (ii) pelagic resources and (iii) artisanal fisheries and island resources of the WECAF region. Separate reports of the informal working groups are given in annexes. Related information provided in national reports were reviewed and specific recommendations for further action revised. Other matters of common interest discussed at the meeting related to international coordination in resource matter, proposals for inter-sessional work, issued related to natural management areas and regional training needs. The meeting was attended by 31 scientists from 16 member countries and one international organization (CARICOM).
Download or read book Risk Evaluation and Biological Reference Points for Fisheries Management written by National Research Council Canada and published by NRC Research Press. This book was released on 1993 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented: 1) Reference points for fisheries management: the western Canadian experience; 2) Reference points for fisheries management: the eastern Canadian experience; 3) Reference points for fisheries management: the ICES experience; 4) Spawning stock biomass per recruit in fisheries management: foundation and current use; 5) The development of a management procedure for the South African anchovy resource; 6) How much spawning per recruit is enough?; 7) The behaviour of Flow, Fmed and Fhigh in response to variation in parameters used for their estimation; 8) The Barents Sea capelin stock collapse: a lesson to learn; 9) Variance estimates for fisheries assessment: their importance and how best to evaluate them; 10) Evaluating the accuracy of projected catch estimates from sequential population analysis and trawl survey abundance estimates; 11) Bootstrap estimates of ADAPT parameters, their projection in risk analysis and their retrospective patterns; 12) Analytical estimates of reliability for the projected yield from commercial fisheries; 13) Risk evaluation of the 10% harvest rate procedure for capelin in NAFO Division 3L; 14) Using jackknife and Monte Carlo simulation techniques to evaluate forecast models for Atlantic salmon; 15) Monte Carlo evaluation of risks for biological reference points used in New Zealand fishery assessments; 16) A comparison of event free risk analysis to Ricker spawner-recruit simulation: an example with Atlantic menhaden; 17) Choosing a management strategy for stock rebuilding when control is uncertain; 18) Risks and uncertainties in the management of a single-cohort squid fishery: the Falkland Islands Illex fishery as an example; 19) Risks of over- and under-fishing new resources; 20) Estimation of density-dependent natural mortality in British Columbia herring stocks through SSPA and its impact on sustainable harvesting strategies; 21) The comparative performance of production-model and ad hoc tuned VPA based feedback-control management procedures for the stock of Cape hake off the west coast of Africa; 22) A proposal for a threshold stock size and maximum fishing mortality rate; 23) Biological reference points for Canadian Atlantic gadoid stocks; 24) Stochastic locally-optimal harvesting; 25) ITQ based fisheries management; 26) Bioeconomic methods for determining TACs; 27) Management strategies: fixed or variable catch quotas; 28) Bioeconomic impacts of TAC adjustment strategies: a model applied to northern cod; 29) Experimental management programs for two rockfish stocks off British Columbia; 30)A brief overview of the experimental approach to reducing uncertainty in fisheries management; 31) Fisheries management organizations: a study of uncertainty.
