Publicação
Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals
| Resumo: | The urination pattern of the Mozambique tilapia (Oreochromis mossambicus) depends on social context, and the olfactory potency of urine released depends on social rank (males) and reproductive status (females). This strongly suggests that urine mediates chemical communication in this species. The current study tested, firstly, whether urine production rate depends on sex or social status and, secondly, whether differences in urination pattern and volume of urine stored are associated with variation in the morphology of the urinary bladder. Finally, the effect of urination during aggressive male-male interactions was assessed. Urine production in catheterized fish depended neither on sex nor social status (males). Nevertheless, males had larger kidneys than females. Dominant males had heavier urinary bladders than subordinate males or females, mainly due to enlarged muscle fibres, thicker urothelium and a thicker smooth muscle layer. In male pairs wherein urination was prevented by temporary constriction of the genital papillae, social interaction escalated to aggression (mouth-to-mouth fighting) more rapidly and frequently than control pairs. This was accompanied by elevated plasma testosterone and 11 -ketotestosterone levels. In control encounters, the male that initiated the aggressive behaviour was usually the winner of the subsequent fight; this did not happen when the males could not urinate. These results suggest that the larger, more muscular bladder of dominant males is an adaptation, facilitating higher urination frequency, post-renal modulation and storage of larger urine volumes for longer. It is likely that urinary pheromones modulate aggression in male-male encounters by providing information on the social rank and/or motivation of the emitter; males are unlikely to invest in costly highly aggressive |
|---|---|
| Autores principais: | Keller-Costa, T. |
| Outros Autores: | Lopes, O.S.; Almeida, O.; Hubbard, P.C.; Iacovella, A.; Lima, M.; Barata, E.N.; Canário, A.V.M. |
| Assunto: | Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| Ano: | 2012 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Ispa-Instituto Universitário |
| Idioma: | inglês |
| Origem: | Repositório do Ispa - Instituto Universitário |
| _version_ | 1866886772958429184 |
|---|---|
| author | Keller-Costa, T. |
| author2 | Lopes, O.S. Almeida, O. Hubbard, P.C. Iacovella, A. Lima, M. Barata, E.N. Canário, A.V.M. |
| author2_role | author author author author author author author |
| author_facet | Keller-Costa, T. Lopes, O.S. Almeida, O. Hubbard, P.C. Iacovella, A. Lima, M. Barata, E.N. Canário, A.V.M. |
| author_role | author |
| contributor_name_str_mv | Repositório do ISPA |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Keller-Costa, T.\"},{\"Person.name\":\"Lopes, O.S.\"},{\"Person.name\":\"Almeida, O.\"},{\"Person.name\":\"Hubbard, P.C.\"},{\"Person.name\":\"Iacovella, A.\"},{\"Person.name\":\"Lima, M.\"},{\"Person.name\":\"Barata, E.N.\"},{\"Person.name\":\"Canário, A.V.M.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório do ISPA |
| datacite.creators.creator.creatorName.fl_str_mv | Keller-Costa, T. Lopes, O.S. Almeida, O. Hubbard, P.C. Iacovella, A. Lima, M. Barata, E.N. Canário, A.V.M. |
| datacite.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-07-16T17:49:08Z |
| datacite.date.embargoed.fl_str_mv | 2020-07-16T17:49:08Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| datacite.titles.title.fl_str_mv | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| dc.contributor.none.fl_str_mv | Repositório do ISPA |
| dc.creator.none.fl_str_mv | Keller-Costa, T. Lopes, O.S. Almeida, O. Hubbard, P.C. Iacovella, A. Lima, M. Barata, E.N. Canário, A.V.M. |
| dc.date.Accepted.fl_str_mv | 2012-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-07-16T17:49:08Z |
| dc.date.embargoed.fl_str_mv | 2020-07-16T17:49:08Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.12/7710 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Koninklijke Brill |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by-nc/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| dc.title.fl_str_mv | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The urination pattern of the Mozambique tilapia (Oreochromis mossambicus) depends on social context, and the olfactory potency of urine released depends on social rank (males) and reproductive status (females). This strongly suggests that urine mediates chemical communication in this species. The current study tested, firstly, whether urine production rate depends on sex or social status and, secondly, whether differences in urination pattern and volume of urine stored are associated with variation in the morphology of the urinary bladder. Finally, the effect of urination during aggressive male-male interactions was assessed. Urine production in catheterized fish depended neither on sex nor social status (males). Nevertheless, males had larger kidneys than females. Dominant males had heavier urinary bladders than subordinate males or females, mainly due to enlarged muscle fibres, thicker urothelium and a thicker smooth muscle layer. In male pairs wherein urination was prevented by temporary constriction of the genital papillae, social interaction escalated to aggression (mouth-to-mouth fighting) more rapidly and frequently than control pairs. This was accompanied by elevated plasma testosterone and 11 -ketotestosterone levels. In control encounters, the male that initiated the aggressive behaviour was usually the winner of the subsequent fight; this did not happen when the males could not urinate. These results suggest that the larger, more muscular bladder of dominant males is an adaptation, facilitating higher urination frequency, post-renal modulation and storage of larger urine volumes for longer. It is likely that urinary pheromones modulate aggression in male-male encounters by providing information on the social rank and/or motivation of the emitter; males are unlikely to invest in costly highly aggressive |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ispa.pt/bitstreams/45bcef3e-51bc-4418-84d6-3d8893564a8a/download |
| id | ispa_eb9677139d70872fa35e482a47c8e2da |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.12/7710 |
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| 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:10400.12/7710 |
| organization_str_mv | urn:organizationAcronym:ispa |
| person_str_mv | Keller-Costa, T. Lopes, O.S. Almeida, O. Hubbard, P.C. Iacovella, A. Lima, M. Barata, E.N. Canário, A.V.M. |
| publishDate | 2012 |
| publisher.none.fl_str_mv | Koninklijke Brill |
| reponame_str | Repositório do Ispa - Instituto Universitário |
| repository_id_str | urn:repositoryAcronym:ispa |
| service_str_mv | urn:repositoryAcronym:ispa |
| spelling | engKoninklijke Brillpt_PTThe urination pattern of the Mozambique tilapia (Oreochromis mossambicus) depends on social context, and the olfactory potency of urine released depends on social rank (males) and reproductive status (females). This strongly suggests that urine mediates chemical communication in this species. The current study tested, firstly, whether urine production rate depends on sex or social status and, secondly, whether differences in urination pattern and volume of urine stored are associated with variation in the morphology of the urinary bladder. Finally, the effect of urination during aggressive male-male interactions was assessed. Urine production in catheterized fish depended neither on sex nor social status (males). Nevertheless, males had larger kidneys than females. Dominant males had heavier urinary bladders than subordinate males or females, mainly due to enlarged muscle fibres, thicker urothelium and a thicker smooth muscle layer. In male pairs wherein urination was prevented by temporary constriction of the genital papillae, social interaction escalated to aggression (mouth-to-mouth fighting) more rapidly and frequently than control pairs. This was accompanied by elevated plasma testosterone and 11 -ketotestosterone levels. In control encounters, the male that initiated the aggressive behaviour was usually the winner of the subsequent fight; this did not happen when the males could not urinate. These results suggest that the larger, more muscular bladder of dominant males is an adaptation, facilitating higher urination frequency, post-renal modulation and storage of larger urine volumes for longer. It is likely that urinary pheromones modulate aggression in male-male encounters by providing information on the social rank and/or motivation of the emitter; males are unlikely to invest in costly highly aggressiveapplication/pdfpt_PTMuscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signalsKeller-Costa, T.Lopes, O.S.Almeida, O.Hubbard, P.C.Iacovella, A.Lima, M.Barata, E.N.Canário, A.V.M.HostingInstitutionOrganizationalRepositório do ISPAe-mailmailto:repositorio@ispa.ptrepositorio@ispa.ptISSNIsPartOf0005-7959DOIIsPartOf10.1163/1568539X-000030232020-07-16T17:49:08Z2012-012012-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.12/7710http://purl.org/coar/access_right/c_16ecrestricted accessSocial dominanceChemical communicationUrine signalsUrinary bladderMuscleAggressionOreochromis mossambicus13257989 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal article2012-01http://creativecommons.org/licenses/by-nc/4.0/http://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio.ispa.pt/bitstreams/45bcef3e-51bc-4418-84d6-3d8893564a8a/downloadBehaviour1499953975Leiden |
| spellingShingle | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals Keller-Costa, T. Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| status | SINGLETON |
| subject.fl_str_mv | Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| title | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| title_full | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| title_fullStr | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| title_full_unstemmed | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| title_short | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| title_sort | Muscular hypertrophy of urinary bladders in dominant tilapia facilitates the control of aggression through urinary signals |
| topic | Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| topic_facet | Social dominance Chemical communication Urine signals Urinary bladder Muscle Aggression Oreochromis mossambicus |
| url | http://hdl.handle.net/10400.12/7710 |
| visible | 1 |