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Chemical cues related to conspecific size in pintado catfish, Pseudoplatystoma coruscans

dc.contributor.authorGiaquinto, P. C.
dc.contributor.authorVolpato, G. L.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:49:44Z
dc.date.available2014-05-20T13:49:44Z
dc.date.issued2005-12-01
dc.description.abstractThe pintado (Pseudoplatystoma coruscans) is a ferocious carnivorous catfish with evident cannibalistic behaviour; its nocturnal habits are related to its ability to use predominately chemical sensorial modalities. This study investigated whether the pintado distinguishes conspecifics of different body sizes using chemical cues, which may reflect different physiological conditions such as hunger or stress. Pintados were observed when receiving water conditioned by either larger or similar-size conspecifics. A control group consisted of pintados receiving unconditioned water. Twelve repetitions were used for each condition. Feeding-like behaviours were investigated in the receiver fish and showed that they responded only to the conditioned water. Furthermore, a higher frequency of responses occurred when the water was conditioned by a similar-size conspecific. Thus, it is concluded that pintados are able to recognize conspecific size by chemical cues related to size and that this ability contributes to the individual's decision making on whether to approach or to avoid the conspecific.en
dc.description.affiliationUniv São Paulo, Fac Med, Dept Physiol, BR-14049900 Ribeirao Preto, Brazil
dc.description.affiliationUniv Estadual Paulista Julio Mesquita Filho, Dept Fisiol,CAUNESP, Lab Anim Physiol & Behav,IBB, Res Ctr Anim Welf,RECAW, Botucatu, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista Julio Mesquita Filho, Dept Fisiol,CAUNESP, Lab Anim Physiol & Behav,IBB, Res Ctr Anim Welf,RECAW, Botucatu, SP, Brazil
dc.format.extent65-69
dc.identifierhttp://dx.doi.org/10.1007/s10211-005-0001-3
dc.identifier.citationActa Ethologica. Heidelberg: Springer Heidelberg, v. 8, n. 2, p. 65-69, 2005.
dc.identifier.doi10.1007/s10211-005-0001-3
dc.identifier.issn0873-9749
dc.identifier.lattes5986784435727980
dc.identifier.orcid0000-0003-4591-4415
dc.identifier.urihttp://hdl.handle.net/11449/17731
dc.identifier.wosWOS:000233857900001
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofActa Ethologica
dc.relation.ispartofjcr1.625
dc.relation.ispartofsjr0,769
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectchemical cuespt
dc.subjectdecision makingpt
dc.subjectfeeding behaviourpt
dc.subjectpredator-prey systempt
dc.subjectsizept
dc.titleChemical cues related to conspecific size in pintado catfish, Pseudoplatystoma coruscansen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.author.lattes5986784435727980[1]
unesp.author.orcid0000-0003-4591-4415[1]

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