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An update on ciguatoxins and CTX-like toxicity in fish from different trophic levels of the Selvagens Islands (NE Atlantic, Madeira, Portugal)

2021-08Journal article Open Access
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dc.contributor.authorReis Costa, Pedro
dc.contributor.authorEstévez, Pablo
dc.contributor.authorSoliño, Lucia
dc.contributor.authorCastro, David
dc.contributor.authorRodrigues, Susana Margarida
dc.contributor.authorTimoteo, Viriato
dc.contributor.authorLeao-Martins, José Manuel
dc.contributor.authorSantos, Carolina
dc.contributor.authorGouveia, Neide
dc.contributor.authorDiogène, Jorge
dc.contributor.authorGago-Martínez, Ana
dc.date.accessioned2021-09-14T09:09:49Z
dc.date.available2021-09-14T09:09:49Z
dc.date.issued2021-08
dc.description.abstractThe Selvagens Islands, which are a marine protected area located at the southernmost point of the Portuguese maritime zone, have been associated with fish harboring ciguatoxins (CTX) and linked to ciguatera fish poisonings. This study reports the results of a field sampling campaign carried out in September 2018 in these remote and rarely surveyed islands. Fifty-six fish specimens from different trophic levels were caught for CTX-like toxicity determination by cell-based assay (CBA) and toxin content analysis by liquid chromatography with tandem mass spectrometry (LC-MS/MS). Notably, high toxicity levels were found in fish with an intermediate position in the food web, such as zebra seabream (Diplodus cervinus) and barred hogfish (Bodianus scrofa), reaching levels up to 0.75 µg CTX1B equivalent kg−1 . The LC-MS/MS analysis confirmed that C-CTX1 was the main toxin, but discrepancies between CBA and LC-MS/MS in D. cervinus and top predator species, such as the yellowmouth barracuda (Sphyraena viridis) and amberjacks (Seriola spp.), suggest the presence of fish metabolic products, which need to be further elucidated. This study confirms that fish from coastal food webs of the Selvagens Islands represent a high risk of ciguatera, raising important issues for fisheries and environmental management of the Selvagens Islands.pt_PT
dc.description.sponsorshipGP/EFSA/AFSCO/2015/03, ED481A-2018/207pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/toxins13080580pt_PT
dc.identifier.eissn2072-6651
dc.identifier.urihttp://hdl.handle.net/10400.1/17101
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationAlgarve Centre for Marine Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCiguatoxinspt_PT
dc.subjectSelvagens Islandspt_PT
dc.subjectSeafood safetypt_PT
dc.subjectGambierdiscuspt_PT
dc.subjectCiguaterapt_PT
dc.titleAn update on ciguatoxins and CTX-like toxicity in fish from different trophic levels of the Selvagens Islands (NE Atlantic, Madeira, Portugal)pt_PT
dc.title.alternativeUma atualização sobre ciguatoxinas e toxicidade semelhante ao CTX em peixes de diferentes níveis tróficos das Ilhas Selvagens (NE Atlantic, Madeira, Portugal)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/151746/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.citation.issue8pt_PT
oaire.citation.startPage580pt_PT
oaire.citation.titleToxinspt_PT
oaire.citation.volume13pt_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
person.familyNameReis Costa
person.familyNameSoliño
person.givenNamePedro
person.givenNameLucia
person.identifier600820
person.identifier.ciencia-idC911-9715-E547
person.identifier.ciencia-id2F12-68AC-8F6C
person.identifier.orcid0000-0001-6083-470X
person.identifier.orcid0000-0001-8356-5688
person.identifier.ridN-1908-2019
person.identifier.scopus-author-id7201895802
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.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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