Combined effects of predator odor and alarm substance on behavioral and physiological responses of the pearl cichlid

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dc.contributor.authorArvigo, Alexandre Luiz [UNESP]
dc.contributor.authorMiyai, Caio Akira [UNESP]
dc.contributor.authorSanches, Fábio H.C.
dc.contributor.authorBarreto, Rodrigo Egydio [UNESP]
dc.contributor.authorCosta, Tânia Marcia [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2019-10-06T16:27:57Z
dc.date.available2019-10-06T16:27:57Z
dc.date.issued2019-07-01
dc.description.abstractSeveral fish species trigger defensive behavioral responses when exposed to chemical cues that indicate predation risk. In these situations, physiological adjustments are also necessary to prepare the organism for a defensive response and increase survival odds. Chemical cues may be derived from predator odor or injured conspecifics. However, little is known about the effects of both cues combined. Therefore, our study evaluated the combined effects of predator odor (PO) and conspecific alarm substance (CAS) on the anti-predatory responses of the pearl cichlid (Geophagus brasiliensis). We set 4 experimental conditions 1) PO + CAS; 2) PO + Distilled Water (DW); 3) DW + CAS; and 4) DW + DW (negative control). Fish exposed to DW + CAS had values of ventilation rate and feeding latency significantly higher than when exposed to the other conditions, which yielded similar responses for both variables. Our data show that the combination of PO + CAS interfered with pearl cichlid behavior and physiology since it abolished CAS defensive responses. These results show that CAS plays an important role on the defensive responses of pearl cichlids, while PO does not, given that fish did not respond to PO by itself. Our findings point to different cue-specific strategies in pearl cichlids when dealing with different chemical cues that indicate predation risk.en
dc.description.affiliationDepartment of Physiology Institute of Biosciences São Paulo State University (UNESP) CAUNESP
dc.description.affiliationInstitute of Biosciences São Paulo State University (UNESP), Coastal Campus
dc.description.affiliationInstitute of Marine Science Federal University of São Paulo (IMar/UNIFESP)
dc.description.affiliationAquaculture Center São Paulo State University (UNESP) – CAUNESP
dc.description.affiliationUnespDepartment of Physiology Institute of Biosciences São Paulo State University (UNESP) CAUNESP
dc.description.affiliationUnespInstitute of Biosciences São Paulo State University (UNESP), Coastal Campus
dc.description.affiliationUnespAquaculture Center São Paulo State University (UNESP) – CAUNESP
dc.format.extent259-263
dc.identifierhttp://dx.doi.org/10.1016/j.physbeh.2019.02.032
dc.identifier.citationPhysiology and Behavior, v. 206, p. 259-263.
dc.identifier.doi10.1016/j.physbeh.2019.02.032
dc.identifier.issn1873-507X
dc.identifier.issn0031-9384
dc.identifier.scopus2-s2.0-85064928500
dc.identifier.urihttp://hdl.handle.net/11449/189043
dc.language.isoeng
dc.relation.ispartofPhysiology and Behavior
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAlarm substance
dc.subjectChemical communication
dc.subjectDefensive response
dc.subjectGeophagus brasiliensis
dc.subjectPredation risk
dc.subjectPredator odor
dc.titleCombined effects of predator odor and alarm substance on behavioral and physiological responses of the pearl cichliden
dc.typeArtigo
unesp.author.orcid0000-0002-6116-3159 0000-0002-6116-3159[2]

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