Publications des scientifiques de l'IRD

Fréon Pierre, Gerlotto François, Soria Marc. (1993). Variability of Harengula spp. school reactions to boats or predators in shallow water. In : Fish behaviour in relation to fishing operations. 196, p. 30-35. (ICES Marine Sciences Symposia). Symposia on Fish Behaviour in Relation to Fishing Operations, Bergen (NOR), 1992.

Titre du document
Variability of Harengula spp. school reactions to boats or predators in shallow water
Année de publication
1993
Type de document
Colloque
Auteurs
Fréon Pierre, Gerlotto François, Soria Marc
In
Fish behaviour in relation to fishing operations
Source
1993, p. 30-35 (ICES Marine Sciences Symposia).
Colloque
Symposia on Fish Behaviour in Relation to Fishing Operations, Bergen (NOR), 1992
The internal structure and behaviour of clupeid schools has been observed in situ during unstressed period followed either by natural predation or by applying a controlled stress (a realistically painted model predator). Combined acoustic and visual (aerial and underwater) observation techniques were used. In situ observations are characterized by a high variability of fish reactions in space and time. The variability in space obviously due to the large scale of observation which allows the silmutaneaous occurence of different types of behaviour in different regions. The variability in time is probably due to a large number of physiological or environmental influences changing unexpectedly between repeated experiments. The variability of fish reaction depends on the characteristics of the source of the stimuli : some sources (e.g. predators) induce different behavioural patterns according to the number of stimuli; others (e.g. boats) induce a single patterns, varying only in intensity. Consequences for acoustic signal identification are discussed. (Résumé d'auteur)
Plan de classement
Biologie [020BIOL] ; Stocks [040PECHE03]
Descripteurs
POISSON MARIN ; ESPECE PELAGIQUE ; ETHOLOGIE ; SCHOOLING ; EXPERIMENTATION ; ECHOINTEGRATION ; ANALYSE DE DONNEES ; STIMULUS ARTIFICIEL
Description Géographique
MARTINIQUE ; MER DES ANTILLES
Localisation
Fonds IRD [F B38977] ; Montpellier (Centre IRD)
Identifiant IRD
fdi:38977
Contact