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Response of gilthead seabream (Sparus aurata L., 1758) larvae to nursery odor cues as described by a new set of behavioral indexes

dc.contributor.authorMorais, Pedro
dc.contributor.authorParra, María P.
dc.contributor.authorBaptista, Vânia
dc.contributor.authorRibeiro, Laura
dc.contributor.authorPousão-Ferreira, Pedro
dc.contributor.authorTeodosio, Maria
dc.date.accessioned2018-04-05T14:30:00Z
dc.date.available2018-04-05T14:30:00Z
dc.date.issued2017
dc.description.abstractTemperate marine fish larvae use a series of environmental cues (e.g., olfactory, hearing, visual) to mediate the selection of nursery habitats. However, habitat selection may vary according to individuals' physiological condition. Therefore, this study aimed to determine the ability of gilthead seabream (Sparus aurata L., 1758) larvae to utilize natural odor cues to locate nursery habitats along ontogeny and to examine how it varies with individual's physiological condition. The hypothesis being tested is that S. aurata larvae prefer coastal rocky reefs as nursery areas, but they might use coastal lagoons as nursery grounds—ecosystems known for their productivity—if under starvation conditions, as a compensatory mechanism to avoid slow growth or even death. A choice-chamber experiment was used to investigate the behavioral responses of satiated and starved laboratory-reared S. aurata larvae, along ontogeny (pre-flexion, flexion, post-flexion), to water collected in a coastal artificial rocky reef and a coastal lagoon. The physiological condition of S. aurata larvae was determined by analyzing several biochemical condition indices. Complementarily, a new set of four preference indexes were developed—Choice-Chamber Preference Indexes—and discussed to provide a clear measure of the behavioral changes of a species along ontogeny by balancing all the behavioral choices made during the experimental trials, including the unresponsive behavior. A developmental threshold was identified at 24 days post-hatching, before which insufficient swimming capability disabled responsive behavior. Beyond this threshold, post-flexion larvae preferred rocky coastal water over lagoon water, even if under starvation conditions or poor physiological condition, despite the fact that the unresponsive behavior was largely predominant. S. aurata larvae displayed a cautionary behavioral strategy, so the compensatory mechanisms to ensure metapopulation stability and resilience have to rely on their feeding plasticity and on being a batch-spawning species (i.e., diversified bet-hedging strategy) to compensate the lack of apparent behavioral plasticity.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3389/fmars.2017.00318pt_PT
dc.identifier.otherAUT: MCH00377;
dc.identifier.otherESSN: 2296-7745
dc.identifier.urihttp://hdl.handle.net/10400.1/10549
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.relationInfluence of oceanography and larvae behaviour on recruitment of temperate fishes: The importance of physics–biology links to manage fisheries at a local scale
dc.relationFish larvae ecology - facing unprecedented changes in our oceans
dc.subjectFish larvaept_PT
dc.subjectOdor cuespt_PT
dc.subjectOntogenypt_PT
dc.subjectPhysiological conditionpt_PT
dc.subjectHabitat selectionpt_PT
dc.subjectCompensatory mechanismpt_PT
dc.titleResponse of gilthead seabream (Sparus aurata L., 1758) larvae to nursery odor cues as described by a new set of behavioral indexespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInfluence of oceanography and larvae behaviour on recruitment of temperate fishes: The importance of physics–biology links to manage fisheries at a local scale
oaire.awardTitleFish larvae ecology - facing unprecedented changes in our oceans
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04326%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F104209%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBSAB%2F113684%2F2015/PT
oaire.citation.titleFrontiers in Marine Sciencept_PT
oaire.citation.volume4pt_PT
oaire.fundingStream5876
oaire.fundingStreamOE
person.familyNameMorais
person.familyNameBaptista
person.familyNamePousão-Ferreira
person.familyNameTeodosio
person.givenNamePedro
person.givenNameVânia
person.givenNamePedro
person.givenNameMaria
person.identifier424141
person.identifier479502
person.identifier.ciencia-id1A19-7E90-8BDD
person.identifier.ciencia-id0C1F-4F1B-256B
person.identifier.ciencia-id5A11-AB29-0849
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.orcid0000-0002-0861-5566
person.identifier.orcid0000-0002-1428-3334
person.identifier.orcid0000-0001-6746-764X
person.identifier.orcid0000-0002-0939-9885
person.identifier.ridF-2815-2011
person.identifier.ridH-3689-2014
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id7005946306
person.identifier.scopus-author-id55820032600
person.identifier.scopus-author-id6506349877
person.identifier.scopus-author-id56196396700
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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