Chemical communication of predation risk in zebrafish does not depend on cortisol increase


Autoria(s): Barcellos, Leonardo J. G.; Koakoski, Gessi; Rosa, Joao G. S. da; Ferreira, Daiane; Barreto, Rodrigo E.; Giaquinto, Percilia C.; Volpato, Gilson L.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

03/12/2014

03/12/2014

27/05/2014

Resumo

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

We investigated chemical cues among groups of zebrafish (Danio rerio) when communicating information about the risk of predation. We found that visual cues of the predator (tiger Oscar, Astronotus ocellatus) did not increase whole-body cortisol levels in groups of zebrafish but that water conditioned by these (donor) zebrafish stressed (target) conspecifics, thereby increasing whole-body cortisol. This finding was confirmed when these zebrafish groups were in different aquaria and communicated exclusively via water transfer. This result indicates that the stress induced in the target zebrafish does not depend on an increase in whole-body cortisol levels in the donor zebrafish. Because cortisol participation is rejected in this predation-risk communication, other chemicals from the stress systems should be investigated.

Formato

7

Identificador

http://dx.doi.org/10.1038/srep05076

Scientific Reports. London: Nature Publishing Group, v. 4, 7 p., 2014.

2045-2322

http://hdl.handle.net/11449/111602

10.1038/srep05076

WOS:000336365000002

WOS000336365000002.pdf

Idioma(s)

eng

Publicador

Nature Publishing Group

Relação

Scientific Reports

Direitos

openAccess

Tipo

info:eu-repo/semantics/article