Alarm cue-mediated response and learning in zebrafish larvae.
Alarm substances
Fish behaviour
Fish cognition
Learning
Predator recognition
Journal
Behavioural brain research
ISSN: 1872-7549
Titre abrégé: Behav Brain Res
Pays: Netherlands
ID NLM: 8004872
Informations de publication
Date de publication:
17 02 2020
17 02 2020
Historique:
received:
02
07
2019
revised:
18
12
2019
accepted:
19
12
2019
pubmed:
25
12
2019
medline:
4
5
2021
entrez:
25
12
2019
Statut:
ppublish
Résumé
We investigated the behavioural and learning response of zebrafish larvae to chemicals released by injured conspecifics (the alarm cue). Many aquatic vertebrates and invertebrates exhibit an innate antipredator response to alarm cues because in nature, they reliably indicate the presence of predators. Likewise, when an individual simultaneously perceives a novel odour and alarm cue, it learns to recognise the novel odour as a predator odour. Alarm cue-mediated behavioural response and learning have been reported in some fish and amphibians during early ontogeny, but in zebrafish, they have been described only for adults. In this study, we demonstrated that zebrafish at 12 and 24 days post fertilization exhibited reduced activity when exposed to alarm cue obtained by homogenised larvae of the same age, with this response being greater for the older zebrafish. In addition, we showed that 24-dpf zebrafish conditioned with alarm cue plus a novel odour learned to recognise the novel odour as a threat and responded to it with antipredator behaviour. The innate behavioural response and the learned response after conditioning may be used to develop paradigms with which to study anxiety, fear, stress, learning and memory in zebrafish larvae.
Identifiants
pubmed: 31870779
pii: S0166-4328(19)31024-1
doi: 10.1016/j.bbr.2019.112446
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
112446Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.