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Conversion factors: landed weight to live weight/Coefficients de conversion: de poids au debarquement a poids vif/Factores de conversion: de peso desembarcado a peso en vivo

FAO Fisheries Circular no. 847 (Rev.1)/ FAO, Circulaire sur les Peches no. 847 (Rev.1)/ FAO, Circular de Pesca no. 847 (Rev.1).










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    Conversion factors for processed queen conch to nominal weight/ Factores de conversión para el caracol reina procesado a peso nominal 2009
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    Queen conch (Strombus gigas) is one of the important fishery resources in the Caribbean in terms of its annual landings and its social and economic importance. Queen conch is an edible marine gastropod of the Caribbean region that has been listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), which allows international trade of the species only after certain conditions are met. An FAO FishCode STF*/OSPESCA** workshop held in Panama identified the need to be able to convert the different processing grades to nominal weight. Three countries (Dominican Republic, Honduras and Nicaragua) volunteered to participate in a field experiment to establish the conversion factors. This investigation resulted in the establishment of conversion rates for different processing grades per country. There were slight but significant differences between conversion factors for processing grades between countries, most likely related to different processing techniques used. Within this limitation, the following preliminary regional conversion factors are recommended: 100 percent fillet to nominal weight 16.4; 85 percent fillet to nominal weight 13.7; 50 percent fillet to nominal weight 9.46; dirty meat to nominal weight 5.7.
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    Desarrollo de un criadero regional de especies nativas de mariscosh to nominal weight/ Factores de conversión para el caracol reina procesado a peso nominal 2011
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    It is widely recognized that the development of aquaculture in the Wider Caribbean region is inhibited, in part, by the lack of technical expertise, infrastructure, capital investment and human resources. Furthermore, seed supply for native species relies, for the most part, on natural collection, subject to natural population abundance with wide yearly variations. This situation has led to the current trend of culturing more readily available exotic species, but with a potentially undesirable i mpact on the natural environment. The centralizing of resources available in the region into a shared facility has been recommended by several expert meetings over the past 20 years. The establishment of a regional hatchery facility, supporting sustainable aquaculture through the seed production of native molluscan species was discussed at the FAO workshop ¿Regional shellfish hatchery: A feasibility study¿ held in Kingston, Jamaica, in October 2010, by representatives of Caribbean governments an d experts in the field. Molluscan species are particularly targeted due to their culture potential in terms of known techniques, simple grow-out technology and low impact activity on surrounding environment. It is proposed that a regional molluscan hatchery would produce seed for sale and distribution to grow-out operations in the region as well as provide technical support for the research on new species.
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