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Social context may affect urinary excretion of 11-ketotestosterone in African cichlids

dc.contributor.authorHirschenhauser, K.
dc.contributor.authorCanario, Adelino V. M.
dc.contributor.authorRos, A. F. H.
dc.contributor.authorTaborsky, M.
dc.contributor.authorOliveira, R. F.
dc.date.accessioned2014-05-07T14:36:42Z
dc.date.available2014-05-07T14:36:42Z
dc.date.issued2008-10
dc.date.updated2014-05-07T10:57:24Z
dc.description.abstractWe previously investigated the androgen responsiveness of males to simulated partner and territory intrusions in five African cichlid species (Neolamprologus pulcher, Lamprologus callipterus, Tropheus moorii, Pseudosimochromis curvifrons, Oreochromis mossambicus; Hirschenhauser et al., 2004). Here we re-analysed data on 11 ketotestosterone (11-KT) levels in holding water to compare the free (presumably from the gills) and conjugated (presumably from urine and faeces) 11-KT fractions. We sampled (i) pre-test baseline control levels from individual males in social isolation and (ii) response levels released after social interactions, either with an ovulating female or a male territory intruder. In four out of five species, conjugated metabolites contributed to the observed total 11-KT responses in water during social context, which was particularly apparent in peak responsive individuals exposed to male intruders. Thus, in water from males sampled in isolation immunoreactive 11-KT seemed to derive both from gills and urine, whereas the urinary 11-KT component apparently increased in the social context, particularly when a male was challenged by a same-sex intruder. These results suggest that (i) the social context may affect urine release patterns of males and (ii) 11-KT data acquired by using fish-holding water may not simply reflect the passive transmission of steroid hormones via the gills.por
dc.identifier.citationHirschenhauser, Katharina; Canário, Adelino V.M.; Ros, Albert F.H.; Taborsky, Michael; Oliveira, Rui F.Social context may affect urinary excretion of 11-ketotestosterone in African cichlids, Behaviour, 145, 10, 1367-1388, 2008.por
dc.identifier.doihttp://dx.doi.org/10.1163/156853908785765935
dc.identifier.issn0005-7959
dc.identifier.otherAUT: ACA00258
dc.identifier.urihttp://hdl.handle.net/10400.1/3797
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherBrill Academic Publisherspor
dc.relation.publisherversionhttp://web.a.ebscohost.com/ehost/pdfviewer/pdfviewer?vid=3&sid=8c16d5d9-4535-47df-b339-a6b75845db9d%40sessionmgr4005&hid=4201por
dc.subjectAndrogen responsespor
dc.subjectNon-invasive methodspor
dc.subjectConjugated metabolitespor
dc.subjectSteroid excretionpor
dc.subjectChallengepor
dc.subjectUrinepor
dc.subjectCichlidpor
dc.subjectGill diffusionpor
dc.titleSocial context may affect urinary excretion of 11-ketotestosterone in African cichlidspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1388por
oaire.citation.issue10por
oaire.citation.startPage1367por
oaire.citation.titleBehaviourpor
oaire.citation.volume145por
person.familyNameCanario
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id56568523700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication5f6e51ee-9113-469e-8b9e-f30f2d452521
relation.isAuthorOfPublication.latestForDiscovery5f6e51ee-9113-469e-8b9e-f30f2d452521

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