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Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus)

2007-12-12Journal article Open access
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dc.contributor.authorBarata, E. N.
dc.contributor.authorHubbard, Peter
dc.contributor.authorAlmeida, O. G.
dc.contributor.authorMiranda, A.
dc.contributor.authorCanario, Adelino V. M.
dc.date.accessioned2014-05-13T13:09:50Z
dc.date.available2014-05-13T13:09:50Z
dc.date.issued2007-12-12
dc.date.updated2014-05-13T09:24:06Z
dc.description.abstractThe urine of freshwater fish species investigated so far acts as a vehicle for reproductive pheromones affecting the behaviour and physiology of the opposite sex. However, the role of urinary pheromones in intra-sexual competition has received less attention. This is particularly relevant in lek-breeding species, such as the Mozambique tilapia (Oreochromis mossambicus), where males establish dominance hierarchies and there is the possibility for chemical communication in the modulation of aggression among males. To investigate whether males use urine during aggressive interactions, we measured urination frequency of dye-injected males during paired interactions between size-matched males. Furthermore, we assessed urinary volume stored in the bladder of males in a stable social hierarchy and the olfactory potency of their urine by recording of the electro-olfactogram. Males released urine in pulses of short duration (about one second) and markedly increased urination frequency during aggressive behaviour, but did not release urine whilst submissive. In the stable hierarchy, subordinate males stored less urine than males of higher social rank; the olfactory potency of the urine was positively correlated with the rank of the male donor. Dominant males store urine and use it as a vehicle for odorants actively released during aggressive disputes. The olfactory potency of the urine is positively correlated with the social status of the male. We suggest that males actively advertise their dominant status through urinary odorants which may act as a 'dominance' pheromone to modulate aggression in rivals, thereby contributing to social stability within the lek.por
dc.identifier.citationBarata, Eduardo N.; Hubbard, Peter C.; Almeida, Olinda G.; Miranda, Antonio; Canario, Adelino V. M.Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus), Bmc Biology, 5, 54, sn-sn, 2007.por
dc.identifier.doihttp://dx.doi.org/10.1186/1741-7007-5-54
dc.identifier.issn1741-7007
dc.identifier.otherAUT: ACA00258
dc.identifier.urihttp://hdl.handle.net/10400.1/3904
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherBioMed Centralpor
dc.relationChemical Identification and Functional Roles of Reproductive Pheromones in the Tilapia, Oreochromis mossambicus.
dc.relation.publisherversionhttp://www.biomedcentral.com/content/pdf/1741-7007-5-54.pdfpor
dc.titleMale urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus)por
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleChemical Identification and Functional Roles of Reproductive Pheromones in the Tilapia, Oreochromis mossambicus.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCI%2FBIA-BDE%2F55463%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI/POCTI%2FBSE%2F38815%2F2001/PT
oaire.citation.endPage11por
oaire.citation.issue54por
oaire.citation.startPage1por
oaire.citation.titleBMC Biologypor
oaire.citation.volume5por
oaire.fundingStreamPOCI
oaire.fundingStreamPOCI
person.familyNameBarata
person.familyNameHubbard
person.familyNameCanario
person.givenNameEduardo Nuno
person.givenNamePeter
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id951F-BA4B-A21F
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0001-9714-5967
person.identifier.orcid0000-0002-3007-4647
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridB-2902-2010
person.identifier.ridB-2823-2008
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id6602073256
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.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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relation.isAuthorOfPublication.latestForDiscoveryf599b3ac-806b-4f65-9eb6-f70e68bcb142
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