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No Thumbnail AvailableProjectProgramme / project reportSouth China Sea fisheries development and coordinating programme. Low-cost water filtration system for fish farms, fish markets and village drinking water supplies, Regional 1979
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No results found.The report describes the situations and problems related to water quality at marine, brackish and freshwater sites in Indonesia, the Philippines and Malaysia. The Consultant investigated each site and where possible, demonstrated the use of the SWS system, using box units and steel screen wells. The results of each test are given along with detailed advice on the installation and maintenance of permanent systems. Further technical data is supplied in the Appendices along with general description s of the equipment and its applications. The format of the report is as follows: After a brief itinerary, there is a day-by-day account of the stations visited, specific problems discussed and practical work undertaken. For each of the territories, there is a comment on the general application of sub-sand abstraction and filtration principles and on factors which affect them. A series of Appendices lists detailed procedures suggested for solving the various problems. These are treated in t his way so that copies of relevant sheets can be forwarded to individual stations for action. It is hoped that the officials dealing with these problems will write for further advice if this would be helpful. -
Book (stand-alone)Technical studyAbandoned, lost and discarded gillnets and trammel nets: methods to estimate ghost fishing mortality, and the status of regional monitoring and management 2016
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No results found.The ecological and socio-economic problems caused by abandoned, lost and discarded fishing gear (ALDFG) are increasingly of concern. Used primarily by coastal, artisanal, small-scale fisheries worldwide, marine gillnets and trammel nets, which have relatively high ghost fishing potential, account for about one-fifth of global marine fisheries landings. FAO and the Global Programme of Action for the Protection of the Marine Environment from Land-based Activities, hosted by the United Nations Envi ronment Programme, as Secretariat for the Global Partnership on Marine Litter, commissioned this study to identify best practices to estimate ghost fishing mortality rates and levels, priority research needs, and the status of international monitoring and management of ALDFG and ghost fishing by marine gillnet and trammel net fisheries. Accurate estimates of total ghost fishing mortality levels can be made given quality data on the density of ALDFG retaining fishing efficiency, duration of ghost fishing efficiency, and total ghost fishing mortality level of a unit of effort of ALDFG over the full period that the derelict gear retains fishing efficiency. Recommendations to improve estimates of regional and global rates and levels of ghost fishing from ALDFG from marine gillnet and trammel net fisheries were made. An assessment was made and opportunities were identified to improve intergovernmental organizations’ data collection protocols and management measures to prevent and remediate ALDFG and ghost fishing by marine gillnets and trammel nets.