FN Archimer Export Format
PT J
TI Unpredictability in food supply during early life influences growth and boldness in European Seabass, Dicentrarchus labrax
BT 
AF FERRARI, Sebastien
   LEGUAY, Didier
   VERGNET, Alain
   VIDAL, Marie-Odile
   CHATAIN, Beatrice
   BEGOUT, Marie-Laure
AS 1:1,2;2:1;3:2;4:2;5:2;6:1;
FF 1:PDG-RBE-MARBEC-L3AS;2:PDG-RBE-HGS;3:PDG-RBE-MARBEC-LSEA;4:PDG-RBE-MARBEC-LSEA;5:PDG-RBE-MARBEC-L3AS;6:PDG-RBE-HGS;
C1 IFREMER, Pl Gaby Coll, F-17137 Lhoumeau, La Rochelle, France.
   IFREMER, UMR MARBEC, Stn Expt Aquaculture, Chemin Maguelone, F-34250 Palavas Les Flots, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI PALAVAS
   LA ROCHELLE
SE PDG-RBE-MARBEC-L3AS
   PDG-RBE-HGS
   PDG-RBE-MARBEC-LSEA
UM MARBEC
IN WOS Ifremer jusqu'en 2018
IF 1.771
TC 10
UR https://archimer.ifremer.fr/doc/00333/44433/44100.pdf
LA English
DT Article
AB Biological variability is no longer considered as statistical noise, but rather as an adaptive benefit. This variability comes from consistent differences in behavioral and physiological responses among individuals to a changing/challenging environment, named “coping style”, “temperament” or “personality”. Many studies have described how to characterize personality traits and how to assess their consistency over time and between different contexts; however, little is known about the environmental factors shaping personality development. Because contrasting personalities are maintained with evolution, this lead to the widespread assumption that genes play a predominant role in personality. In many cases, personality traits are however also likely to be determined by individual experience, which is probably at least as important as genetics in shaping personality. The aim of this study was to assess how environmental variability (herein food predictability) impacts behavioral responses, particularly the shyness-boldness axis, one of the most widely shared animal personality trait. Here, we reared juvenile seabass (95 days old) from two divergent strains selected for feed deprivation tolerance under standard conditions for 40 days. Thereafter, we submitted them to two feeding treatments (Predictable vs Unpredictable) starting at 135 dph and lasting 60 days. Seabass reared under a predictable food supply (PFS) grew faster and were shyer than fish reared under an unpredictable food supply (UFS) (i.e. they took more time to exit the refuge zone of a Z-maze; UFS: 132.47 ± 34.63 s; PFS: 336.79 ± 56.97 s) but their exploration tendency was similar. We also examined the behavioral responses of these fish facing a hypoxic challenge. Hypoxia tolerance results were consistent before and after the two feeding treatments. Our findings show the importance of early environmental experience as a driving force shaping boldness. In addition, we provide further evidence that predictable feeding time should be respected in studies assessing essential functions such as growth and behavior. Although personality traits are partially heritable, this study demonstrates the important influence of environmental conditions and life history on behavior
PY 2016
PD JUN
SO Applied Animal Behaviour Science
SN 0168-1591
PU Elsevier Science Bv
VL 180
UT 000378667300019
BP 147
EP 156
DI 10.1016/j.applanim.2016.04.017
ID 44433
ER

EF