Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/44943
Título: Establishment of dominance relationships in gilthead sea bream Sparus aurata juveniles during feeding: effects on feeding behaviour, feed utilization and fish health
Autores/as: Montero, D. 
Lalumera, G.
Izquierdo, M. S. 
Caballero, M. J. 
Saroglia, M.
Tort, L.
Clasificación UNESCO: 251092 Acuicultura marina
Palabras clave: Chronic stress
Feed intake
Social hierarchy
Fecha de publicación: 2009
Publicación seriada: Journal of Fish Biology 
Resumen: In gilthead sea bream Sparus aurata held in groups of two, five or 10 fish, social hierarchies were observed. Subordinate S. aurata were characterized by elevation of basal levels of plasma cortisol, together with a reduced immunological potential. Subordinate fish also showed lower feed intake, feed utilization and lower growth. Fatty acid composition was also affected by social status, with a lower content of saturated acids, oleic and eicosapentaenoic, in muscle and liver of fish considered as subordinate. Results show that social hierarchy acts as a stressor in S.aurata.
URI: http://hdl.handle.net/10553/44943
ISSN: 0022-1112
DOI: 10.1111/j.1095-8649.2008.02161.x
Fuente: Journal of Fish Biology [ISSN 0022-1112], v. 74 (4), p. 790-805
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