Please use this identifier to cite or link to this item: http://hdl.handle.net/10532/2016
Title: Capacidad de búsqueda de alimento en canales seminaturales de juveniles de trucha común autóctona de origen mediterráneo y de stocks alóctonos cliados en cautividad
Other Titles: Self-feeding ability of farm-reared native Mediterranean and Atlantic brown trout juveniles into artificial system
Authors: Mitjana Nerín, Olga María
Alabart Alvarez, José Luis
Clavero, J.L.
Blasco Martínez, José María
Josa, A.
Espinosa, E.
Issue Date: 2011
Citation: Mitjana, O., Clavero, J.L., Alabart, J.L., Blasco, J.M., Josa, A., Espinosa, E. “Capacidad de búsqueda de alimento en canales seminaturales de juveniles de trucha común autóctona de origen mediterráneo y de stocks alóctonos cliados en cautividad“.En: 41 Jornadas de Estudio. XIV Jornadas sobre Producción Animal. AIDA. Zaragoza, España, 17 y 18 de mayo de 2011, pp.130-132. ISBN: 978-84-615-0062-8
Abstract: Stocked brown trouts have reduced ability to obtain food resulting in reduced survival rates. Adaptation to natural environments of farm-reared fishes becomes crucial early after restocking. The aim of this work was to evaluate the self-feeding ability of different strains of juvenile brown trout placed at different densities and in presence or absence of predators. Three different strains of juvenile brown trout were placed for 3 weeks into seminatural ponds at two stocking densities, and in presence/absence of predators. Predators were adult mature trouts stocked prior introducing juveniles. An Atlantic strain from domestic origin was used as control. F2 juveniles from two different native Mediterranean brown trout populations were also used. The presence of food in stomach contents was assessed after necropsy. Feeding ability was decreased in presence of predators and high juvenile densities with important differences among trout strains.
URI: http://hdl.handle.net/10532/2016
Appears in Collections:[DOCIART] Artículos científicos, técnicos y divulgativos

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