TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

LATERAL DISPLAY POSTURE [1 record]

Record 1 2019-04-17

English

Subject field(s)
  • Animal Behaviour
  • Fish
DEF

A ... threat or reproductive behavior exhibited by many species of fishes, in which two male fish align beside each other, spread their dorsal, anal, and pelvic fins, and intensify the coloration of their bodies.

CONT

'Lateral display' refers to the maximal opening of all the fins with a slight concavity of the dorsal surface of the fish, and head and tail flexed upwards usually aligning laterally to the other fish. 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.

OBS

These threats are usually accompanied by tail beats and body quivering.

French

Domaine(s)
  • Comportement animal
  • Poissons
DEF

... comportement agonostique stréréotypé adopté par certains poissons, dont les salmonidés, pour intimider l'adversaire [et qui consiste] à présenter une taille exagérée [...] de profil (latérale) 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.

CONT

Posture de menace latérale. La menace la plus fréquente, pour un saumon qui voit approcher un congénère de son territoire, consiste à dresser la nageoire dorsale et éventuellement déployer l'anale. Ce signal, amplifiant sa surface visible et donc son apparence, suffit souvent à écarter le visiteur. Si celui-ci persiste et arrive en posture menaçante, nageoire dressée en se plaçant à côté de l'autre poisson, les deux saumons remontent lentement le courant, nageoires toujours dressées. Cette séquence peut simplement s'arrêter à ce stade ou évoluer vers des attitudes plus agressives.

Spanish

Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: