Establishment of dominance relationships in gilthead sea bream Sparus aurata juveniles during feeding: effects on feeding behaviour, feed utilization and fish health

被引：36

作者：

Montero, D. ^{[1
]}

Lalumera, G.

Izquierdo, M. S. ^{[1
]}

Caballero, M. J. ^{[1
]}

Saroglia, M.

Tort, L.

机构：

[1] ICCM IUSA, Grp Invest Acuicultura, Las Palmas Gran Canaria 35200, Canary Islands, Spain

来源：

JOURNAL OF FISH BIOLOGY | 2009年 / 74卷 / 04期

关键词：

chronic stress; feed intake; social hierarchy; BRAIN SEROTONERGIC ACTIVITY; CHARR SALVELINUS-ALPINUS; HIGH STOCKING DENSITY; RAINBOW-TROUT; SOCIAL STRESS; ARCTIC CHARR; PLASMA-CORTISOL; COMPETITIVE ABILITY; AGGRESSIVE-BEHAVIOR; HIERARCHY FORMATION;

D O I：

10.1111/j.1095-8649.2008.02161.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

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.

引用

页码：790 / 805

页数：16

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