Publicação
Social context may affect urinary excretion of 11-ketotestosterone in african cichlids
| Resumo: | We 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. |
|---|---|
| Autores principais: | Hirschenhauser, Katharina |
| Outros Autores: | Canário, Adelino V. M.; Ros, Albert F. H.; Taborsky, Michael; Oliveira, Rui Filipe |
| Assunto: | Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| Ano: | 2008 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Ispa-Instituto Universitário |
| Idioma: | inglês |
| Origem: | Repositório do Ispa - Instituto Universitário |
| _version_ | 1866886836054392832 |
|---|---|
| author | Hirschenhauser, Katharina |
| author2 | Canário, Adelino V. M. Ros, Albert F. H. Taborsky, Michael Oliveira, Rui Filipe |
| author2_role | author author author author |
| author_facet | Hirschenhauser, Katharina Canário, Adelino V. M. Ros, Albert F. H. Taborsky, Michael Oliveira, Rui Filipe |
| author_role | author |
| contributor_name_str_mv | Repositório do ISPA |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Hirschenhauser, Katharina\"},{\"Person.name\":\"Canário, Adelino V. M.\"},{\"Person.name\":\"Ros, Albert F. H.\"},{\"Person.name\":\"Taborsky, Michael\"},{\"Person.name\":\"Oliveira, Rui Filipe\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório do ISPA |
| datacite.creators.creator.creatorName.fl_str_mv | Hirschenhauser, Katharina Canário, Adelino V. M. Ros, Albert F. H. Taborsky, Michael Oliveira, Rui Filipe |
| datacite.date.Accepted.fl_str_mv | 2008-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-03-17T12:49:54Z |
| datacite.date.embargoed.fl_str_mv | 2012-03-17T12:49:54Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| datacite.titles.title.fl_str_mv | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| dc.contributor.none.fl_str_mv | Repositório do ISPA |
| dc.creator.none.fl_str_mv | Hirschenhauser, Katharina Canário, Adelino V. M. Ros, Albert F. H. Taborsky, Michael Oliveira, Rui Filipe |
| dc.date.Accepted.fl_str_mv | 2008-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-03-17T12:49:54Z |
| dc.date.embargoed.fl_str_mv | 2012-03-17T12:49:54Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.12/1273 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Brill |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| dc.title.fl_str_mv | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | We 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. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ispa.pt/bitstreams/bf3e080b-b259-480e-aaba-071d28a86e1e/download |
| id | ispa_5fc7eb08a01e093bef8ed32a0aecfda9 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.12/1273 |
| instacron_str | ispa |
| institution | Ispa-Instituto Universitário |
| instname_str | Ispa-Instituto Universitário |
| language | eng |
| network_acronym_str | ispa |
| network_name_str | Repositório do Ispa - Instituto Universitário |
| oai_identifier_str | oai:repositorio.ispa.pt:10400.12/1273 |
| organization_str_mv | urn:organizationAcronym:ispa |
| person_str_mv | Hirschenhauser, Katharina Canário, Adelino V. M. Ros, Albert F. H. Taborsky, Michael Oliveira, Rui Filipe |
| publishDate | 2008 |
| publisher.none.fl_str_mv | Brill |
| reponame_str | Repositório do Ispa - Instituto Universitário |
| repository_id_str | urn:repositoryAcronym:ispa |
| service_str_mv | urn:repositoryAcronym:ispa |
| spelling | engBrillporWe 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.application/pdfporSocial context may affect urinary excretion of 11-ketotestosterone in african cichlidsHirschenhauser, KatharinaCanário, Adelino V. M.Ros, Albert F. H.Taborsky, MichaelOliveira, Rui FilipeHostingInstitutionOrganizationalRepositório do ISPAe-mailmailto:repositorio@ispa.ptrepositorio@ispa.ptISSNIsPartOf0005-79592012-03-17T12:49:54Z20082008-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.12/1273http://purl.org/coar/access_right/c_abf2open accessAndrogen responsesConjugated metabolitesNon-invasive methodsGill diffusionSteroid excretionUrineChallengeCichlid295143 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ispa.pt/bitstreams/bf3e080b-b259-480e-aaba-071d28a86e1e/downloadBehaviour13671388Leiden |
| spellingShingle | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids Hirschenhauser, Katharina Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| status | SINGLETON |
| subject.fl_str_mv | Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| title | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| title_full | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| title_fullStr | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| title_full_unstemmed | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| title_short | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| title_sort | Social context may affect urinary excretion of 11-ketotestosterone in african cichlids |
| topic | Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| topic_facet | Androgen responses Conjugated metabolites Non-invasive methods Gill diffusion Steroid excretion Urine Challenge Cichlid |
| url | http://hdl.handle.net/10400.12/1273 |
| visible | 1 |