Improvement of fishing gears: The case of demersal crustacean fisheries in Chile
Keywords:Crustaceans, trawl net, selectivity, Chile
The Chilean fisheries sector is characterized for landing, essentially, pelagic species caught using purse seine nets. However, in waters of the central-northern part of the country demersal resources are obtained with bottom trawl nets, among which three species of crustaceans: nylon shrimp (Heterocarpus reedi), yellow shrimp (Cervimuda johni) and squat lobster (Pleuroncodes monodon) that in 2009 reached about 13,000 t landing. Due to the global concern to reduce the impacts of trawling, as of 2001, the Fisheries Authority tendered to conduct four periodic research projects aimed at characterizing fisheries from a technological and associated fauna perspective and evaluating different catch selection alternatives to minimize the side impacts of the activity. The projects were implemented by the Laboratory of Fisheries Technology (TECPES) of the Pontificia Universidad Católica de Valparaíso, Chile, in a joint process that culminated with the development and transference of a new trawl net to users that comprised ship owners, skippers, net manufacturers, researchers and fishery managers. Among the results of the process, technical and scientific publications and training of a human group in the design and manufacture of bottom trawl nets are to be mentioned.
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Copyright (c) 2014 Mauricio Ahumada Escobar
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