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Chemical diplomacy in male tilapia: urinary signal increases sex hormone and decreases aggression

2017-08Journal article Open access
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dc.contributor.authorSaraiva, João
dc.contributor.authorKeller-Costa, Tina
dc.contributor.authorHubbard, Peter
dc.contributor.authorRato, Ana
dc.contributor.authorCanario, Adelino
dc.date.accessioned2018-12-07T14:52:45Z
dc.date.available2018-12-07T14:52:45Z
dc.date.issued2017-08
dc.description.abstractAndrogens, namely 11-ketotestosterone (11KT), have a central role in male fish reproductive physiology and are thought to be involved in both aggression and social signalling. Aggressive encounters occur frequently in social species, and fights may cause energy depletion, injury and loss of social status. Signalling for social dominance and fighting ability in an agonistic context can minimize these costs. Here, we test the hypothesis of a 'chemical diplomacy' mechanism through urinary signals that avoids aggression and evokes an androgen response in receiver males of Mozambique tilapia (Oreochromis mossambicus). We show a decoupling between aggression and the androgen response; males fighting their mirror image experience an unresolved interaction and a severe drop in urinary 11KT. However, if concurrently exposed to dominant male urine, aggression drops but urinary 11KT levels remain high. Furthermore, 11KT increases in males exposed to dominant male urine in the absence of a visual stimulus. The use of a urinary signal to lower aggression may be an adaptive mechanism to resolve disputes and avoid the costs of fighting. As dominance is linked to nest building and mating with females, the 11KT response of subordinate males suggests chemical eavesdropping, possibly in preparation for parasitic fertilizations.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1038/s41598-017-07558-1
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.1/11196
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNature Publishing Group
dc.relationOLFACTO E REPRODUÇÃO: A INFLUÊNCIA DA COMUNICAÇÃO QUÍMICA NA PUBERDADE EM PEIXES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectCichlid fish
dc.subjectOreochromis-mossambicus
dc.subjectSocial modulation
dc.subjectChallenge hypothesis
dc.subjectGonadal-steroids
dc.subjectAndrogen levels
dc.subjectMilt production
dc.subjectPeacock blenny
dc.subjectTeleost fish
dc.subjectIn-vitro
dc.titleChemical diplomacy in male tilapia: urinary signal increases sex hormone and decreases aggression
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleOLFACTO E REPRODUÇÃO: A INFLUÊNCIA DA COMUNICAÇÃO QUÍMICA NA PUBERDADE EM PEIXES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F67008%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F46192%2F2008/PT
oaire.citation.startPage7636
oaire.citation.titleScientific Reports
oaire.citation.volume7
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameSaraiva
person.familyNameKeller-Costa
person.familyNameHubbard
person.familyNameRato
person.familyNameCanario
person.givenNameJoão
person.givenNameTina
person.givenNamePeter
person.givenNameAna Cláudia Nunes
person.givenNameAdelino
person.identifier292979
person.identifier143624
person.identifier.ciencia-id7A15-0E73-E652
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person.identifier.ciencia-id951F-BA4B-A21F
person.identifier.ciencia-id6D14-EA6C-E8D1
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0002-8891-8881
person.identifier.orcid0000-0003-3702-9192
person.identifier.orcid0000-0002-3007-4647
person.identifier.orcid0000-0002-1150-2757
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridM-6167-2013
person.identifier.ridB-2823-2008
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id26325116400
person.identifier.scopus-author-id7005928467
person.identifier.scopus-author-id56568523700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
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