Effect of Stocking Size on Growth Performance, Biomass, Production, Yield, and Survival of Caridean Shrimp Cage-Cultured in a Pond System

Autor: Milton Spanopoulos Hernández, Jesús T. Ponce-Palafox, Manuel García-Ulloa Gómez, José Luis Arredondo-Figueroa, Fermín López-Uriostegui, Héctor M. Esparza-Leal, Mario A. Benítez-Mandujano
Rok vydání: 2014
Předmět:
Zdroj: North American Journal of Aquaculture. 76:430-435
ISSN: 1548-8454
1522-2055
DOI: 10.1080/15222055.2014.936538
Popis: We evaluated the effect of stocking size on growth performance, biomass, production, yield, and survival of the caridean shrimp Macrobrachium americanum, a freshwater prawn, cultured in cages held in a pond system. The experiment was conducted using 15 cages of 3 m3 placed inside an earthen pond of 1,422 m2 or surface area. Seventy-five prawns were stocked for 180 d at sizes of 5, 15, 25, 35 and 45 g, and the initial stocking density was adjusted to 1.7 individuals/m3 for all size groups. Growth performance, biomass, production, yield, and survival were significantly affected by stocking size. The mean final weight fluctuated from 21.3 g for the 5-g stocking size to 82.1 g for the 45-g stocking size, whereas prawns initially stocked at 35 g obtained a biomass of 277.8 g and at 45 g obtained a biomass of 246.3 g and a yield >82.0 g/m3. The specific growth rate decreased with stocking size from 0.78%/d for the 5-g group, to 0.33%/d for the 45-g group. Annual production fluctuated from 28.0 kg/ha for...
Databáze: OpenAIRE
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