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Social organization and endocrine profiles of Australoheros facetus, an exotic freshwater fish in southern Portugal

2017-10Journal article Restricted access
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dc.contributor.authorBaduy, F.; Silva, FBV
dc.contributor.authorGuerreiro, Pedro M
dc.contributor.authorCanario, A.V.M.
dc.contributor.authorL. Saraiva, João
dc.date.accessioned2019-11-20T15:07:20Z
dc.date.available2019-11-20T15:07:20Z
dc.date.issued2017-10
dc.description.abstractAustraloheros facetus is a neotropical cichlid and an exotic species in the Guadiana and Odelouca basins (Southern Portugal). In this research, we aimed to characterize the main behavioural patterns and circulating hormones, 17 beta-estradiol (E-2) for females, and testosterone, 11-ketotestosterone (11KT) and cortisol for both sexes, during the formation of social groups, a crucial step in the life-history of A. facetus. A pair-breeding strategy with territorial behaviour and aggressive interactions was found, with a positive correlation between dominance and size for both sexes. There were no significant differences between non-territorial and territorial individuals in the baseline levels of hormones, but 11KT was higher in males when they became territorial, as E-2 for territorial females, while there was no clear pattern for testosterone. In contrast, cortisol was higher in non-territorial males and correlated negatively with social dominance. These results suggest that size is the main driver for social dominance and that formation of stable hierarchies result in higher circulating 11KT and lowers stress in territorial males. Related to A. facetus' behaviour, aggressiveness and biparental care may be an advantage during the invasion process of A. facetus, facilitating colonization of new habitats.
dc.description.sponsorshipNational Council for Technological and Scientific Development of Brazil (CNPq), Program Science without Borders [245971/20122]
dc.description.sponsorshipFCT-Foundation for Science and Technology [UID/Multi/04326/2013, SFRH/BPD/67008/2009]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1007/s10211-017-0271-6
dc.identifier.issn0873-9749
dc.identifier.issn1437-9546
dc.identifier.urihttp://hdl.handle.net/10400.1/12984
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Heidelberg
dc.relationOLFACTO E REPRODUÇÃO: A INFLUÊNCIA DA COMUNICAÇÃO QUÍMICA NA PUBERDADE EM PEIXES
dc.subjectNeotropical cichlid fish
dc.subjectDominance hierarchies
dc.subjectParental-roles
dc.subjectChallenge hypothesis
dc.subjectAggressive-behavior
dc.subjectCichlasoma-nigrofasciatum
dc.subjectPleuronectes-platessa
dc.subjectPlasma-cortisol
dc.subjectSex-Differences
dc.subjectRainbow-trout
dc.titleSocial organization and endocrine profiles of Australoheros facetus, an exotic freshwater fish in southern Portugal
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleOLFACTO E REPRODUÇÃO: A INFLUÊNCIA DA COMUNICAÇÃO QUÍMICA NA PUBERDADE EM PEIXES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F67008%2F2009/PT
oaire.citation.endPage277
oaire.citation.issue3
oaire.citation.startPage263
oaire.citation.titleActa ethologica
oaire.citation.volume20
oaire.fundingStream5876
person.familyNameBaduy vaz da Silva
person.familyNameGuerreiro da Costa Guerreiro
person.familyNameCanario
person.familyNameSaraiva
person.givenNameFlávia
person.givenNamePedro Miguel
person.givenNameAdelino
person.givenNameJoão
person.identifierA-2539-2009
person.identifier143624
person.identifier292979
person.identifier.ciencia-id5C13-965D-3148
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.ciencia-id7A15-0E73-E652
person.identifier.orcid0000-0003-4179-8111
person.identifier.orcid0000-0001-5371-7919
person.identifier.orcid0000-0002-6244-6468
person.identifier.orcid0000-0002-8891-8881
person.identifier.ridC-7942-2009
person.identifier.ridM-6167-2013
person.identifier.scopus-author-id56568523700
person.identifier.scopus-author-id26325116400
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.rightsrestrictedAccess
rcaap.typearticle
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