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Optimizing rearing and welfare in Senegalese sole (Solea senegalesensis) broodstock: effect of ambient light intensity and handling time on stress response

2020-01Journal article Open Access
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dc.contributor.authorFigueiredo, Filipe
dc.contributor.authorAragão, Cláudia
dc.contributor.authorPinto, Wilson
dc.contributor.authorDinis, Maria Teresa
dc.contributor.authorOliveira, Catarina
dc.date.accessioned2020-04-21T10:07:41Z
dc.date.available2020-04-21T10:07:41Z
dc.date.issued2020-01
dc.description.abstractBroodstock rearing conditions and handling procedures should be optimized in aquaculture species in order to benefit fish welfare and guarantee optimal conditions for spawning. In teleosts, basal cortisol levels display daily rhythms, oscillating along the 24 h of the day. In this sense, handling fish at different moments of the day may lead to different stress responses. The present study aimed at investigating the optimal rearing conditions for Senegalese sole broodstock, considering ambient light intensity and handling time. The optimal light intensity (50, 100 or 200 lx) was investigated by measuring fish cortisol levels and monitoring locomotor activity rhythms under each intensity tested. Results showed a significant increase in cortisol levels of fish exposed to 200 lx, when compared to values obtained under 100 lx, accompanied by changes in locomotor activity rhythms in both tanks under study. These results suggested that 200 lx may be too high as light intensity for this species, whereas 100 lx seems to be more adequate. Also, daily rhythms of stress response were investigated in breeders from different origins (Wild and first generation, G1). Basal cortisol levels and cortisol stress response after an acute stressor (air exposure) were monitored at two distinct moments of the day (Mid-Light and Mid-Dark). Basal levels were higher during the day in the wild group, while G1 fish seemed to have lost the daily fluctuations in basal cortisol plasma levels, as well as their daily rhythms of locomotor activity. Both groups showed lower stress responses during night-time, an indication that this is an adequate period of the day to handle this species. Senegalese sole breeders born in captivity presented more pronounced stress responses when compared to wild fish, reflecting their different life history in terms of stress challenges.pt_PT
dc.description.sponsorshipFP7/SME/2008/1pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttps://doi.org/10.1016/j.applanim.2019.104880pt_PT
dc.identifier.issn0168-1591
dc.identifier.urihttp://hdl.handle.net/10400.1/13733
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationNot Available
dc.relationNot Available
dc.relationCentre of Marine Sciences
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0168159119301406?via%3Dihubpt_PT
dc.subjectCortisolpt_PT
dc.subjectLocomotor activitypt_PT
dc.subjectDaily rhythmspt_PT
dc.subjectG1 breederspt_PT
dc.subjectFish welfarept_PT
dc.titleOptimizing rearing and welfare in Senegalese sole (Solea senegalesensis) broodstock: effect of ambient light intensity and handling time on stress responsept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleNot Available
oaire.awardTitleNot Available
oaire.awardTitleCentre of Marine Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0033/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/DL 57%2F2016/DL 57%2F2016%2FCP1361%2FCT0007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04326%2F2019/PT
oaire.citation.startPage104880pt_PT
oaire.citation.titleApplied Animal Behaviour Sciencept_PT
oaire.citation.volume222pt_PT
oaire.fundingStreamDL 57/2016
oaire.fundingStreamDL 57/2016
oaire.fundingStream6817 - DCRRNI ID
person.familyNameAragão
person.familyNameDinis
person.familyNameOliveira
person.givenNameCláudia
person.givenNameMaria Teresa
person.givenNameCatarina
person.identifier174173
person.identifier.ciencia-idD01E-0726-9F3E
person.identifier.ciencia-id5414-4ACF-BF90
person.identifier.ciencia-id0816-30C5-51AC
person.identifier.orcid0000-0002-9217-0183
person.identifier.orcid0000-0001-7813-1324
person.identifier.orcid0000-0002-6679-761X
person.identifier.ridK-2310-2012
person.identifier.scopus-author-id55903315700
person.identifier.scopus-author-id7004150905
person.identifier.scopus-author-id35433190500
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
relation.isAuthorOfPublicationbc649967-3b39-41dc-8fab-b60c24e65286
relation.isAuthorOfPublication309dec19-8aa9-4bea-8665-42dd4b3a9894
relation.isAuthorOfPublication3ac5841f-3b4e-4ad1-94f7-a5436fb8cd59
relation.isAuthorOfPublication.latestForDiscovery309dec19-8aa9-4bea-8665-42dd4b3a9894
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