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Comparative testing of bycatch reduction devices in tropical shrimp-trawl fisheries

A practical guide









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    Book (series)
    Advances and best practices in bycatch reduction in tropical shrimp-trawl fisheries 2021
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    This technical report describes efforts to mitigate bycatch through gear modifications and adaptations in the tropical shrimp-trawl fisheries of over 30 countries. It provides a summary of efforts by each country and then synthesizes them to identify and describe best practice. A best practice in bycatch reduction is the application or adoption of appropriate, recognized approaches to modifying fishing gear, with the objective of reducing bycatch to the greatest extent practicable. This information serves as a benchmark to identify countries that are taking appropriate steps to reduce bycatch and those that are not. It also provides context from which the outcomes of research on bycatch reduction can be evaluated and compared, including the identification of effective bycatch reduction devices, and serves to identify future research priorities. In the context of this report, best practice includes the installation and use of TEDs and BRDs that are optimally rigged and operated so as to reduce bycatch. It also includes the application of appropriate regulations to ensure effective performance, as well as the introduction of effective outreach and extension programmes to enhance and sustain best practice to reduce bycatch.
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    Book (stand-alone)
    A guide to bycatch reduction in tropical shrimp-trawl fisheries (Revised Edition)
    REBYC - Reduction of Environmental Impact from Tropical Shrimp Trawling, Through the Introduction of By-catch Reduction Technologies and Change of Management
    2007
    Bycatch is the unwanted or non-target part of the catch taken by fishermen. It is either discarded at sea or used for human or animal consumption. The capture of bycatch may pose a threat to species diversity and ecosystem health because this part of the catch is usually unregulated. In tropical shrimp-trawl fisheries, bycatch often consists of juvenile food-fish species and is therefore a threat to food security and sustainable fisheries production. Bycatch is a global problem that must be addressed. The Food and Agriculture Organization of the United Nations (FAO) is addressing this problem through the technical project, 'Reduction of discards and environmental impact from fisheries. Under this project FAO is executing a five-year global project funded by the Global Environmental Facility (GEF) titled, Reduction of environmental impacts from tropical shrimp trawling, through the introduction of bycatch reduction technologies and change of management. Twelve countrie s1 from Latin America, the Caribbean, West Africa, Southeast Asia and the Gulf region, and one inter-governmental organization2 are also participating in this project. A Guide to Bycatch Reduction in Tropical Shrimp-Trawl Fisheries is a result of this project. It is designed for fishermen, net makers, fishing technologists and others interested in a practical guide to the design, use and operation of effective bycatch reduction devices. Fishery managers, policy-makers and legislators w ill find this guide useful to help develop specifications governing the design and application of these devices in a shrimptrawl fishery. The issue of bycatch is not going away and scrutiny of fishing activity is increasing. All fishermen are strongly urged to use appropriate bycatch reduction measures to help maintain the productivity of the fishery and the long term prosperity of the fishing industry. By responding appropriately, fishermen can help to protect the marine environment and assist global food security both now and in the future.
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    Book (stand-alone)
    Research and Engineering Appropriate BRDs for developing the Eco-friendly Trawl Net in Indonesia. Final Report. 2007
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    Research and engineering appropriate BRDs for developing the eco-friendly trawl net in Indonesia were conducted on fishing ground around Dolak islands waters in Arafura sea from November 29 to December 9, 2007. The flume tank demonstration was performed at Fishing Technology Laboratory, Department of Fisheries Resources Utilization, Bogor Agricultural University. The objectives of the research were to evaluate technical performance of BRDs (TED super shooter, square mesh window, and fi sh eye); to collect baseline data on the catch composition of trawl net without BRD; to compare effectiveness of three different types of BRDs tested in reducing the by-catch from a commercial shrimp trawl fishery in Arafura sea in term of changes in catch composition, catch weight and catch value; and to demonstrate the BRDs performance in the laboratory flume tank.

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