Author(s):
Oliveira, Thiago Acosta ; Idalenciol, Renan ; Kalichak, Fabiana ; Santos Rosa, Joao Gabriel dos ; Koakoskil, Gessi ; Abreu, Murilo Sander de ; Varrone Giacomini, Ana Cristina ; Gusso, Dalian ; Rosemberg, Denis Brook ; Barreto, Rodrigo Egydio [UNESP] ; Gil Barcellos, Leonardo Jose
Date: 2018
Persistent ID: http://hdl.handle.net/11449/159848
Origin: Oasisbr
Subject(s): Behavior; Communication; Cortisol; Stress; Prey predator interaction; Behavior; Behavior; Communication; Communication; Cortisol; Cortisol; Stress; Stress; Prey predator interaction; Prey predator interaction
Description
Made available in DSpace on 2018-11-26T15:45:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-09-04
Universidade de Passo Fundo
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Chemical communication relating to predation risk is a trait common among fish species. Prey fish under threat of predation can signal risk to conspecific fish, which then exhibit defensive responses. Fish also assess predation risk by visual cues and change their behavior accordingly. Here, we explored whether these behavioral changes act as visual alarm signals to conspecific fish that are not initially under risk. We show that shoals of zebrafish (Danio rerio) visually exposed to a predator display antipredator behaviors. In addition, these defensive maneuvers trigger antipredator reactions in conspecifics and, concomitantly, stimulate the hypothalamus-pituitary-interrenal axis, leading to cortisol increase. Thus, we conclude that zebrafish defensive behaviors act as visual alarm cues that induce antipredator and stress response in conspecific fish.
Univ Fed Santa Maria, Programa Posgrad Farmacol, Santa Maria, RS, Brazil
Univ Passo Fundo, Biosci Inst, Passo Fundo, Brazil
Pontificia Univ Catolica Rio Grande do Sul, Dept Biol Sci, Porto Alegre, RS, Brazil
Univ Estadual Paulista, Dept Biosci, Botucatu, SP, Brazil
Univ Passo Fundo, Programa Posgrad Bioexpt, Passo Fundo, Brazil
Univ Estadual Paulista, Dept Biosci, Botucatu, SP, Brazil
CNPq: 470260/2013
CNPq: 301992/2014-2
