FN Archimer Export Format
PT J
TI Behavioral and neurophysiological responses of European sea bass groups reared under food constraint
BT 
AF DI POI, Carole
   ATTIA, J
   BOUCHUT, C
   DUTTO, Gilbert
   COVES, Denis
   BEAUCHAUD, M
AS 1:1;2:1;3:1;4:2;5:2;6:1;
FF 1:;2:;3:;4:PDG-DOP-DCM-BOME-LALR;5:PDG-DOP-DCM-BOME-LALR;6:;
C1 Univ St Etienne, Lab Ecol & Neuroethol Sensorielles, EA 3988, F-42023 St Etienne 02, France.
   IFREMER, Stn Expt Aquaculture, Lab Aquacole Languedoc Roussillon, F-34250 Palavas Les Flots, France.
C2 UNIV ST ETIENNE, FRANCE
   IFREMER, FRANCE
SI MARTINIQUE
   PALAVAS
SE PDG-DOP-DCM-BOME-LALR
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.561
TC 22
UR https://archimer.ifremer.fr/doc/2007/publication-2637.pdf
LA English
DT Article
DE ;Social stress;Brain serotonergic activity;Territorial behavior;Agonistic interactions;Self feeding;European sea bass;Triggering activity;Food demand behavior
AB The individual food-demand behavior of juvenile European sea bass (Dicentrarchus labrax, L.) reared in groups under self-feeding conditions was investigated. The triggering activity on self-feeder, i.e. index of the food-demand activity, agonistic interactions and territorial behavior were monitored for periods of 42 to 68 days in six groups of 50 fish. The specific growth rate was calculated and the brain serotonergic activity was used as a stable index of social stress. Inter-individual differences appeared in triggering activity and three groups were distinguished: 3-5 high-triggering fish, 17-30 low-triggering fish and the remaining individuals were null-triggering fish. There were no significant differences in specific growth rates calculated at the end of the experiment (day 42 or day 68) between individuals with high, low, and null food-demand (ANOVA, p > 0.05). No territorial or agonistic behaviors were observed, however, there were significant differences in brain scrotonergic activity between the three triggering groups (ANOVA, p=0.050 in telencephalon and p=0.004 in cerebellum). Specifically, high-triggering fish had lower serotonergic turnover than low or null-triggering fish. We put forth the hypothesis that fish with low or null-triggering activity could be stressed by the high activity of high-triggering individuals. (c) 2006 Elsevier Inc. All rights reserved.
PY 2007
PD MAR
SO Physiology & Behavior
SN 0031-9384
PU Elsevier
VL 90
IS 4
UT 000245488500004
BP 559
EP 566
DI 10.1016/j.physbeh.2006.11.005
ID 2637
ER

EF