Consistency of stress response to repeated handling in the gilthead sea bream Sparus aurata Linnaeus, 1758

L. Tort, D. Montero, L. Robaina, H. Fernández-Palacios, M. S. Izquierdo

    Research output: Contribution to journalArticleResearchpeer-review

    51 Citations (Scopus)

    Abstract

    Gilthead sea bream Sparus aurata Linnaeus, 1758 were subjected to repeated stresses, namely confinement and handling once a month for 5 consecutive months. Plasma cortisol concentration was determined as a primary stress response, and plasma glucose and osmolality, serum agglutination and growth rate were analysed as indicators of the secondary and tertiary effects of stress. The results of the mean values after the five trials showed that most indicators followed a consistent pattern with time. Cortisol and growth rate were positively correlated, and cortisol and osmolality were negatively correlated after stress. Analysis of the individual responses throughout all 5 months showed that 6-20% of the fish displayed a consistently high or low response depending on the parameter analysed.
    Original languageEnglish
    Pages (from-to)593-598
    JournalAquaculture Research
    Volume32
    Issue number7
    DOIs
    Publication statusPublished - 23 Jul 2001

    Keywords

    • Cortisol
    • Growth rate
    • Osmolality
    • Repeated stress
    • Sea bream

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