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Prey odour enhances swimming activity and feed intake in the Senegalese sole

2009Journal article Restricted access
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dc.contributor.authorBarata, E. N.
dc.contributor.authorHubert, F.
dc.contributor.authorConceição, L. E. C.
dc.contributor.authorVelez, Zélia
dc.contributor.authorRema, P.
dc.contributor.authorHubbard, Peter
dc.contributor.authorCanario, Adelino V. M.
dc.date.accessioned2014-05-09T09:58:58Z
dc.date.available2014-05-09T09:58:58Z
dc.date.issued2009
dc.date.updated2014-05-08T10:56:50Z
dc.description.abstractOlfaction is important in many aspects of the life-history of fishes including feeding, and more so in nocturnal benthic feeders. In the current study we assessed the importance of olfaction in food-search behaviour of the Senegalese sole, an economically important marine species both as farmed and wild-caught. Whole-body homogenates of the polychaete Diopatra neapolitana were fractionated by solid-phase extraction (SPE) using C18 cartridges and the olfactory potency of the resultant fractions (hydrophobic eluate and hydrophilic filtrate) was assessed by the electro-olfactogram in juvenile sole. In addition, the effect of both the homogenate and SPE fractions on sole locomotion was assessed in a flow-through tank (fluviarium). Finally, whole-body homogenate was added to commercial feed pellets and tested whether it could enhance food consumption by sole. The SPE hydrophilic filtrate contained the majority of the olfactory activity found in the whole-body homogenate. Both the homogenate and filtrate, but not the eluate, increased number of movements, time moving, linear velocity, distance travelled and time swimming upstream of sole in the fluviarium; ablation of the olfactory epithelia disrupted these behavioural responses to the homogenate. Intact sole consumed more pellets flavoured with worm homogenate than those without. These results show that olfaction plays an important role in food-search behaviour of the Senegalese sole and that the hydrophilic fraction of D. neapolitana whole-body homogenate contains key substances affecting sole search behaviour; moreover, ingestion by sole was enhanced by addition of worm homogenate to the dry feed pellets.por
dc.identifier.citationBarata, E. N.; Hubert, F.; Conceicao, L. E. C.; Velez, Z.; Rema, P.; Hubbard, P. C.; Canario, A. V. M. Prey odour enhances swimming activity and feed intake in the Senegalese sole, Aquaculture, 293, 1-2, 100-107, 2009.por
dc.identifier.doihttp://dx.doi.org/10.1016/j.aquaculture.2009.04.004
dc.identifier.issn0044-8486
dc.identifier.otherAUT: ACA00258;
dc.identifier.urihttp://hdl.handle.net/10400.1/3819
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.subjectBehaviourpor
dc.subjectFeedingpor
dc.subjectOlfactionpor
dc.subjectSolea senegalensispor
dc.titlePrey odour enhances swimming activity and feed intake in the Senegalese solepor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage107por
oaire.citation.issue1-2por
oaire.citation.startPage100por
oaire.citation.titleAquaculturepor
oaire.citation.volume293por
person.familyNameBarata
person.familyNameVelez
person.familyNameHubbard
person.familyNameCanario
person.givenNameEduardo Nuno
person.givenNameZélia
person.givenNamePeter
person.givenNameAdelino
person.identifier143624
person.identifier.ciencia-id4412-F95B-34A2
person.identifier.ciencia-id951F-BA4B-A21F
person.identifier.ciencia-id1F1E-D3B3-F804
person.identifier.orcid0000-0001-9714-5967
person.identifier.orcid0000-0003-2761-4048
person.identifier.orcid0000-0002-3007-4647
person.identifier.orcid0000-0002-6244-6468
person.identifier.ridB-2902-2010
person.identifier.ridM-5283-2013
person.identifier.ridB-2823-2008
person.identifier.ridC-7942-2009
person.identifier.scopus-author-id6602073256
person.identifier.scopus-author-id16176444400
person.identifier.scopus-author-id7005928467
person.identifier.scopus-author-id56568523700
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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