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Volume 42 - Number 3 - 2007
Artículo


Effect of the initial stocking body weight on growth of spotted rose snapper Lutjanus guttatus (Steindachner, 1869) in marine floating cages

Sergio Castillo-Vargasmachuca1, Jesús T. Ponce-Palafox2,1, Ernesto Chávez Ortíz3 and José Luis Arredondo-Figueroa4

 

1 Universidad Autónoma de Nayarit-CBAP and CUVEDES. Ciudad de la Cultura Amado Nervo, C.P. 63000, Tepic, Nayarit, México
2 Universidad Autónoma del Estado de Morelos-CIB. Avenida Universidad 1001, CP 62209, Cuernavaca, México
3 Centro Interdisciplinario de Ciencias Marinas. Av. IPN s/n, Col. Playa Palo de Santa Rita, CP 23000, La Paz, Baja California Sur, México
4 Universidad Autónoma Metropolitana Iztapalapa, Planta Experimental de Producción Acuícola, Departamento de Hidrobiología, CBS, México. Av. San Rafael Atlixco 186, Colonia Vicentina Iztapalapa 0940, CP 09340, México DF

 

E-mail: afjl@xanum.uam.mx

 

Spotted rose snapper were stocked at body weight sizes of 24.5 ± 3.7 g, 55.4 ± 3.5 g, and 110.2 ± 4.6 g in three replicated marine floating cages of 100 m3 and reared for 153 days at Santa Cruz de Miramar in Nayarit, Mexico, to determine the appropriate stocking body weight size. Caged snapper were fed twice a day with commercial pellets containing 35% crude protein during the first three months and 25% during the last two months, respectively. The water temperature of cages ranged from 25.6 to 32.3°C. Mean survival ranged from 67.5 to 74.7%. Stocking body weight sizes of snapper exerted significantly different (P≤0.05) effects on the final biomass. The maximum mean weekly weight gain was 12.8 g week-1 in cages with the 110.2 ± 4.6 g body weight size. These results suggest, as a good strategy, the introduction of snappers with a total weight of 110 g for grow out in marine cages culture


Key words: Pisces, Lutjanidae, cage culture, aquaculture, survival

 

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1Laboratorio de Zooplancton, Instituto de Ciencias del Mar y Limnología,Universidad Nacional Autónoma de México. A. P. 70-305, 04510 México, D. F. México
 
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