Effects of predator odour on antipredator responses of Nile tilapia

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dc.contributor.authorMiyai, Caio Akira [UNESP]
dc.contributor.authorSanches, Fábio Henrique Carretero [UNESP]
dc.contributor.authorPinho-Neto, Cândido Ferreira [UNESP]
dc.contributor.authorBarreto, Rodrigo Egydio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:04:17Z
dc.date.available2018-12-11T17:04:17Z
dc.date.issued2016-10-15
dc.description.abstractSeveral fish species exhibit antipredator responses when exposed to chemicals which indicate risk of predation. One such substance is the scent of a predator (a kairomone) that may induce defensive responses in a potential prey. In the present study, we show that chemical cues (odour) from predator fish induce antipredator and stress responses in Nile tilapia. When exposed to predator odour, Nile tilapia decreased activity and increased ventilation rate (VR), but no increase in plasma levels of cortisol and glucose was found. Although the hypothalamic-pituitary-interrenal axis (HPI axis) was not activated, an increase in ventilation is a fast response which can provide the fish enough oxygen for a ‘fight or flight’ event when facing a predator. Thus, this respiratory response suggests an anticipated adjustment in order to prepare the body for a defensive response, such as escaping, irrespective of HPI axis activation.en
dc.description.affiliationDepartamento de Fisiologia Instituto de Biociências UNESP, Rubião Jr. s/n
dc.description.affiliationUnespDepartamento de Fisiologia Instituto de Biociências UNESP, Rubião Jr. s/n
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2010/11319-0
dc.description.sponsorshipIdFAPESP: 2011/03216-9
dc.format.extent22-27
dc.identifierhttp://dx.doi.org/10.1016/j.physbeh.2016.06.033
dc.identifier.citationPhysiology and Behavior, v. 165, p. 22-27.
dc.identifier.doi10.1016/j.physbeh.2016.06.033
dc.identifier.file2-s2.0-84978701684.pdf
dc.identifier.issn1873-507X
dc.identifier.issn0031-9384
dc.identifier.scopus2-s2.0-84978701684
dc.identifier.urihttp://hdl.handle.net/11449/173242
dc.language.isoeng
dc.relation.ispartofPhysiology and Behavior
dc.relation.ispartofsjr1,088
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectChemical cues
dc.subjectCortisol
dc.subjectGlucose
dc.subjectKairomone
dc.subjectLocomotion
dc.subjectVentilation rate
dc.titleEffects of predator odour on antipredator responses of Nile tilapiaen
dc.typeArtigo

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