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Economic Analysis of Polyculture Tilapia and Australian Redclaw Crayfish

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  • The present paper studied system viability of tilapia nilotica and Australian redclaw crayfish in polyculture, considering tialpia as main species. Three scenarios were analyzed: tilapia monoculture with 38.7 fish/m3 and tilapia and Australian redclaw polyculture, considering the same stocking density for fish in monoculture and 17.5 crustaceans/m2, of which one included a physical separation between species. Modelling and simulation was conducted with the PowerSim software. The results showed the polyculture without physical separation, generated sales revenue (3.261,30 dls) and net income (479,98 dls), a harvesting time and size of 197 days and 350.7 g for tilapia. Modeling data proved useful tools for decision-making allowing establish optimal harvest time for the monoculture and polyculture of the studied species.
  • KEYWORDS: Posters, Aquaculture, Fisheries economics
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  • Coronado-Castro, Eva, Laura Silva-Ledezma and Eucario Gasca-Leyva. 2010. Economic Analysis of Polyculture Tilapia and Australian Redclaw Crayfish. 10 pages. In: Proceedings of the Fifteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 13-16, 2010, Montpellier, France: Economics of Fish Resources and Aquatic Ecosystems: Balancing Uses, Balancing Costs. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2010.
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  • US National Oceanic and Atmospheric Administration (NOAA) Fisheries Division, Agence Française de Développement, Ministère de l’Enseignement Supérieur et de la Recherche, Ministère de L’Alimentation de L’Agriculture et de la Pêche, Ministère de l’Énergie, du Développement Durable et de la Mer, La Région Languedoc Rouslilon, Département Hérault, Montpellier Agglomèration, The Department of Fisheries and Oceans, Canada, and AquaFish Collaborative Research Support Program (CRSP).
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