%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Soria, Marc
%A Fréon, Pierre
%A Chabanet, Pascale
%T Schooling properties of an obligate and a facultative fish species
%D 2007
%L fdi:010040845
%G ENG
%J Journal of Fish Biology
%@ 0022-1112
%K pelagic fishes ; polarity ; schooling behaviour ; social interactions
%M ISI:000250362000001
%N 5
%P 1257-1269
%R 10.1111/j.1095-8649.2007.01554.x
%U https://www.documentation.ird.fr/hor/fdi:010040845
%> https://www.documentation.ird.fr/intranet/publi/2007/12/010040845.pdf
%V 71
%W Horizon (IRD)
%X Changes in attraction and repulsion indicators, depending on the species and the group size, were explored under controlled conditions. Two species, displaying different schooling behaviours in the wild were observed: the bigeye scad Selar crumenophthalmus and the barred flagtail Kuhlia mugil. In the bigeye scad, the polarity and speed were high and stable, and the nearest neighbour distance (D-NN) decreased when the group size increased. In contrast, for the barred flagtail, polarity and speed decreased according to the group size, inducing a loss of cohesion and leading to a disorganized school. The D-NN mean was stable whatever the group size and relatively high. This experiment indicated that the ability to polarize is first a species-specific trait, rather than a property emerging from the group and led by the circumstances.
%$ 036