FN Archimer Export Format PT J TI Heritability of Boldness and Hypoxia Avoidance in European Seabass, Dicentrarchus labrax BT AF FERRARI, Sebastien HORRI, Khaled ALLAL, Francois VERGNET, Alain BENHAIM, David VANDEPUTTE, Marc CHATAIN, Beatrice BEGOUT, Marie-Laure AS 1:1;2:2;3:2;4:2;5:3,4;6:5,6;7:2;8:1; FF 1:PDG-RBE-MARBEC-L3AS;2:PDG-RBE-HMMN-RHBL;3:PDG-RBE-MARBEC-L3AS;4:PDG-RBE-MARBEC-LSEA;5:;6:;7:PDG-RBE-MARBEC-L3AS;8:PDG-RBE-HGS; C1 IFREMER, Pl Gaby Coll, Fisheries Lab, Lhoumeau, France. IFREMER, MARBEC UMR9190, Chemin Maguelone, Palavas Les Flots, France. Normandie Univ, UNICAEN, LUSAC, Cherbourg, France. Conservatoire Natl Arts & Metiers Intechmer, Cherbourg, France. Univ Paris Saclay, AgroParisTech, INRA, GABI, Jouy En Josas, France. IFREMER, L3AS, Chemin Maguelone, Palavas Les Flots, France. C2 IFREMER, FRANCE IFREMER, FRANCE UNIV CAEN NORMANDIE, FRANCE INTECHMER CNAM, FRANCE INRA, FRANCE IFREMER, L3AS, Chemin Maguelone, Palavas Les Flots, France. SI PALAVAS BOULOGNE LA ROCHELLE SE PDG-RBE-MARBEC-L3AS PDG-RBE-HMMN-RHBL PDG-RBE-MARBEC-LSEA PDG-RBE-HGS UM MARBEC IN WOS Ifremer jusqu'en 2018 DOAJ copubli-france copubli-p187 copubli-univ-france IF 2.806 TC 24 UR https://archimer.ifremer.fr/doc/00362/47278/47239.pdf LA English DT Article AB To understand the genetic basis of coping style in European seabass, fish from a full factorial mating (10 females x 50 males) were reared in common garden and individually tagged. Individuals coping style was characterized through behavior tests at four different ages, categorizing fish into proactive or reactive: a hypoxia avoidance test (at 255 days post hatching, dph) and 3 risk-taking tests (at 276, 286 and 304 dph). We observed significant heritability of the coping style, higher for the average of risk-taking scores (h2 = 0.45 ± 0.14) than for the hypoxia avoidance test (h2 = 0.19 ± 0.10). The genetic correlations between the three risk-taking scores were very high (rA = 0.96–0.99) showing that although their repeatability was moderately high (rP = 0.64–0.72), successive risk-taking tests evaluated the same genetic variation. A mild genetic correlation between the results of the hypoxia avoidance test and the average of risk-taking scores (0.45 ± 0.27) suggested that hypoxia avoidance and risk-taking tests do not address exactly the same behavioral and physiological responses. Genetic correlations between weight and risk taking traits showed negative values whatever the test used in our population i.e. reactive individual weights were larger. The results of this quantitative genetic analysis suggest a potential for the development of selection programs based on coping styles that could increase seabass welfare without altering growth performances. Overall, it also contributes to a better understanding of the origin and the significance of individual behavioral differences. PY 2016 PD DEC SO Plos One SN 1932-6203 PU Public Library Science VL 11 IS 12 UT 000392842600071 DI 10.1371/journal.pone.0168506 ID 47278 ER EF