Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus)
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/3867 |
Resumo: | The current study investigated whether discrimination of sexual status of female tilapia by males is mediated by olfaction. Size-matched groups of female tilapia were assigned as pre- or post-ovulatory according to the time since their last ovulation (15–19·days pre-ovulatory, N=7; 1–3·days post-ovulatory, N=8). Female-conditioned water and body fluids (urine, bile, faeces and plasma) were assessed for olfactory potency in males by recording the electro-olfactogram (EOG). Water extracts, urine and faeces from pre-ovulatory females all evoked significantly larger amplitude EOGs in male fish (N=6), with correspondingly lower thresholds of detection, than those from post-ovulatory females. Plasma and bile evoked very large amplitude EOGs in males but with no differences between the two groups of females. Anosmic males (N=6) did not behave differently towards pre- or post-ovulatory females, while sham-operated males (N=6) showed a marked increase in urination rate towards pre-ovulatory females. We conclude that the ability of male tilapia to discriminate between females of differing reproductive status is mediated by odorants released into the water, probably via the urine and faeces, by pre-ovulatory females. |
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Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus)BehaviourReproductionChemical communicationFishPheromoneCourtshipCichlidThe current study investigated whether discrimination of sexual status of female tilapia by males is mediated by olfaction. Size-matched groups of female tilapia were assigned as pre- or post-ovulatory according to the time since their last ovulation (15–19·days pre-ovulatory, N=7; 1–3·days post-ovulatory, N=8). Female-conditioned water and body fluids (urine, bile, faeces and plasma) were assessed for olfactory potency in males by recording the electro-olfactogram (EOG). Water extracts, urine and faeces from pre-ovulatory females all evoked significantly larger amplitude EOGs in male fish (N=6), with correspondingly lower thresholds of detection, than those from post-ovulatory females. Plasma and bile evoked very large amplitude EOGs in males but with no differences between the two groups of females. Anosmic males (N=6) did not behave differently towards pre- or post-ovulatory females, while sham-operated males (N=6) showed a marked increase in urination rate towards pre-ovulatory females. We conclude that the ability of male tilapia to discriminate between females of differing reproductive status is mediated by odorants released into the water, probably via the urine and faeces, by pre-ovulatory females.The Company of BiologistsSapientiaMiranda, A.Almeida, O. G.Hubbard, PeterBarata, E. N.Canario, Adelino V. M.2014-05-12T14:47:24Z2005-06-012014-05-07T11:36:09Z2005-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/3867engMiranda, A.; Almeida, O. G.; Hubbard, P. C.; Barata, E. N.; Canario, A. V. M.Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus), Journal of Experimental Biology, 208, 11, 2037-2043, 2005.0022-0949AUT: AMI00243; ACA00258http://dx.doi.org/10.1242/jeb.01584info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:14:54Zoai:sapientia.ualg.pt:10400.1/3867Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:57:18.324514Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
title |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
spellingShingle |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) Miranda, A. Behaviour Reproduction Chemical communication Fish Pheromone Courtship Cichlid |
title_short |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
title_full |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
title_fullStr |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
title_full_unstemmed |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
title_sort |
Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus) |
author |
Miranda, A. |
author_facet |
Miranda, A. Almeida, O. G. Hubbard, Peter Barata, E. N. Canario, Adelino V. M. |
author_role |
author |
author2 |
Almeida, O. G. Hubbard, Peter Barata, E. N. Canario, Adelino V. M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Miranda, A. Almeida, O. G. Hubbard, Peter Barata, E. N. Canario, Adelino V. M. |
dc.subject.por.fl_str_mv |
Behaviour Reproduction Chemical communication Fish Pheromone Courtship Cichlid |
topic |
Behaviour Reproduction Chemical communication Fish Pheromone Courtship Cichlid |
description |
The current study investigated whether discrimination of sexual status of female tilapia by males is mediated by olfaction. Size-matched groups of female tilapia were assigned as pre- or post-ovulatory according to the time since their last ovulation (15–19·days pre-ovulatory, N=7; 1–3·days post-ovulatory, N=8). Female-conditioned water and body fluids (urine, bile, faeces and plasma) were assessed for olfactory potency in males by recording the electro-olfactogram (EOG). Water extracts, urine and faeces from pre-ovulatory females all evoked significantly larger amplitude EOGs in male fish (N=6), with correspondingly lower thresholds of detection, than those from post-ovulatory females. Plasma and bile evoked very large amplitude EOGs in males but with no differences between the two groups of females. Anosmic males (N=6) did not behave differently towards pre- or post-ovulatory females, while sham-operated males (N=6) showed a marked increase in urination rate towards pre-ovulatory females. We conclude that the ability of male tilapia to discriminate between females of differing reproductive status is mediated by odorants released into the water, probably via the urine and faeces, by pre-ovulatory females. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-06-01 2005-06-01T00:00:00Z 2014-05-12T14:47:24Z 2014-05-07T11:36:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/3867 |
url |
http://hdl.handle.net/10400.1/3867 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Miranda, A.; Almeida, O. G.; Hubbard, P. C.; Barata, E. N.; Canario, A. V. M.Olfactory discrimination of female reproductive status by male tilapia (Oreochromis mossambicus), Journal of Experimental Biology, 208, 11, 2037-2043, 2005. 0022-0949 AUT: AMI00243; ACA00258 http://dx.doi.org/10.1242/jeb.01584 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
The Company of Biologists |
publisher.none.fl_str_mv |
The Company of Biologists |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133182900043776 |