Brain lateralization involved in visual recognition of conspecifics in coral reef fish at recruitment

Abstract : In vertebrates, brain functional asymmetries are widespread and increase brain performance. Some species of fishes are known to have brain asymmetries; however, little information is available on brain lateralization in coral reef fishes and the impact this could have during the recruitment phase. In this study, soldierfish, Myripristis pralinia, at the larval and juvenile stage recognized conspecifics through visual cues. Larvae with the ablation of either the right or left telencephalic hemisphere lost the attraction towards conspecific cues. In contrast, juveniles with the ablation of the right (but not left) telencephalic hemisphere still displayed a preference towards conspecific visual cues. These results suggest the left telencephalic hemisphere is responsible for the lateralization process used in the visual recognition of coral reef fish juveniles. The determinism of lateralized perception of conspecifics during fish ontogeny may be a consequence of genetic factors, linked with the metamorphosis processes and/or environmental factors such as predation at recruitment.
Type de document :
Article dans une revue
Animal Behaviour, Elsevier Masson, 2016, 117, 〈10.1016/j.anbehav.2016.04.011〉
Liste complète des métadonnées

https://hal-univ-perp.archives-ouvertes.fr/hal-01340504
Contributeur : Olivier Savoyat <>
Soumis le : vendredi 1 juillet 2016 - 11:19:16
Dernière modification le : mardi 15 mai 2018 - 11:34:02

Lien texte intégral

Identifiants

Citation

Natacha Roux, Emilio Duran, Rynae G. Lanyon, Bruno Frédérich, Cécile Berthe, et al.. Brain lateralization involved in visual recognition of conspecifics in coral reef fish at recruitment. Animal Behaviour, Elsevier Masson, 2016, 117, 〈10.1016/j.anbehav.2016.04.011〉. 〈hal-01340504〉

Partager

Métriques

Consultations de la notice

361