60 June 2010 age of nearly 34 g in 132 days when stocked in temperate ponds. This suggests that, in the present study, the growth rate may have been slower because of crowding. Space limitation may severely restrict growth in crustaceans (D’ Abramo et al. 2000). Management details and diet information were not provided by New (2002), but it is believed that juveniles grow better in ponds. Despite species and management differences, M. americanum juveniles should be stocked in experimental ponds as a next step. Future research should be focused on the effects of such variables as density, temperature and diet, that will help determine the success potential with respect to the culture of M. americanum. Notes 1Departamento de Acuacultura, Centro Interdisciplinario de Investigaciones para el Desarrollo Integral Regional (CIIDIRIPN) Unidad Sinaloa. Blvd. J. Batiz P. # 250 P. O. box 280, Guasave, Sinaloa, Mexico 81100 (mgarciagu@ipn. mx) 2Becario E.D.I.- C.O.F.A.A Acknowledgments The authors are grateful to Fomix-Sinaloa through the research project 44043 for the funds provided and to SIPIPN. References D’ Abramo, L., J. Heinen, H. Robinette and J.Collins. 1989. Production of the freshwater prawn Macrobrachium rosenbergii stocked as juveniles at different densities in temperate zone ponds. Journal of the World Aquaculture Society 20:81-89. D’ Abramo, L., S. Malecha, M. Fuller, W.Daniels and J. Heinen. 1991 Reassessment of the prospects for freshwater prawn culture in the United States: Complementary research efforts in Hawaii and Mississippi. Pages 96-123 In P.A. Sandifer, editor. Shrimp culture in North America and the Caribbean. World Aquaculture Society, Baton Rouge, Louisiana, USA. D’ Abramo, L., H. Daniel, P. Gerard, W. Han Jun and C. Summerlin. 2000. Influence of the water volume, surface area and water replacement rate on weight gain of juvenile freshwater prawns Macrobrachium rosenbergii. Aquaculture 182:161-171. D’ Abramo, L., T. Ohs, M. Fondren, J. Steeby and B. Posadas. 2003. Culture of freshwater prawns in temperate climates: Management practices and economics. Office of Agricultural Communications, Division of Agriculture, Forestry, and Veterinary Medicine at Mississippi State University, Bulletin 1138. García-Guerrero, M. and J. P. Apun Molina. 2008. Density and shelter influence the adaptation to wild juvenile cauque prawns Macrobrachium americanum to culture conditions. North American Journal of Aquaculture 70:343-346. Hendrickx, M. 1995. Guía para la identificación de especies con fines de Pesca, Pacifico Centro Oriental, Volumen I. Plantas e Invertebrados. Pages 456-469 In W. Fischer, F. Krupp, C. Schneider, K. Summer, E. Carpenter and V. Neim, editors. Food and Agriculture Organization of the United Nations, Rome, Italy. Jerry, D., I. Purvis, L. Piper and C. Dennis. 2005. Selection for faster growth in the freshwater crayfish Cherax destructor. Aquaculture 247:169–176. Kensler, C., A. Weller and M. Vidal. 1974. El desarrollo y cultivo del langostino de rio en Michoacán y Guerrero, Mexico y la Pesqueria de la langosta en Michoacán, Mexico. Contribución al estudio de las Pesquerias en Mexico. Programa de Investigación y Fomento Pesqueros de Mexico /FAO México. Muñoz-Sevilla, P. and D. Escobedo-Urías. 2005. Estrategias de biodiversidad. El Caso México: Experiencias y Consideraciones. Pages 243-260 In Ronald G. Hellman and Rodrigo Araya Dujisin, editors. Chile Litoral. Dialogo Científico sobre los Ecosistemas Costeros. Chile. New, M. 2002. Farming freshwater prawns. A manual for the culture of the giant river prawn (Macrobrachium rosenbergii). Food and Agriculture Organization of the United Nations, Rome, Italy. New, M. 2005. Freshwater prawn farming: Global status, recent research and a glance at the future. Aquaculture Research 36:210-230. Table 1. Survival (%) along time per group of Macrobrachium americanum juveniles stocked at different sizes and maintained during 84 days. Day Treatment1 1 2 3 14 84.35a 91.74a 95.64a 28 66.52a 87.88b 92.01b 42 61.30a 76.03b 85.96b 56 58.70a 73.55b 77.72b 70 57.39a 69.97b 74.82b 84 55.22a 68.6b 72.40b 1Treatment 1, 0.06 to 0.10 g; Treatment 2, 0.11 to 0.20 g; Treatment 3, 0.21 to 0.30g. Different superscript letters denote statistical differences among different stocking sizes by one-way ANOVA (p≤0.05). Table 2. Weight increase during the trial of Macrobrachium americanum juveniles of the three tested trials. Day Trial1 1 2 3 1 0.08±0.007a 0.15±0.012a 0.25±0.013a 14 0.17±0.014b 0.27±0.036b 0.48±0.071b 28 0.34±0.049c 0.41±0.074c 0.79±0.069c 42 0.67±0.071d 0.76±0.065c 1.25±0.095d 56 1.11±0.174d 1.24±0.098d 1.61±0.121e 70 1.90±0.271e 2.11±0.195e 2.26±0.184f 84 2.82±0.335e 3.26±0.214f 3.58±0.289g 1Trial 1, 0.06 to 0.10 g; Trial 2, 0.11 to 0.20 g; Trial 3, 0.21 to 0.30g. Different superscript letters denote statistical differences within the same stocking size by one-way ANOVA (p≤0.05). (Continued on page 67)
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