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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 DEF

[An] agonistic display behavior in which a fish faces another fish and flares its gill covers (opercula) and opens its mouth wide.  3, fiche 1, Anglais, - frontal%20display%20posture

Record number: 1, Textual support number: 1 CONT

In 'frontal display', the fish orients with its head pointed towards another fish, the dorsal surface of the fish is slightly convex with the head lower than the tail, the mouth is open, and the floor of the mouth is slightly depressed.  4, fiche 1, Anglais, - frontal%20display%20posture

Record number: 1, Textual support number: 1 OBS

This behavior may indicate aggression, territoriality or self defense (by making it appear too large to attack or eat).  3, fiche 1, Anglais, - frontal%20display%20posture

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

... comportement agonostique stéréotypé adopté par certains poissons, dont les salmonidés, pour intimider l'adversaire [et qui consiste] à présenter une taille exagérée [...] de face (frontale) grâce à la contraction de muscles particuliers aboutissant à la courbure du corps, [l']érection des nageoires, l'écartement des opercules ou l'abaissement du plancher buccal.  1, fiche 1, Français, - posture%20de%20menace%20frontale

Fiche 1,  Justifications,  Espagnol