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Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress

2023-04-10Artigo científico Acesso aberto
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dc.contributor.authorVarela, Jaquelino
dc.contributor.authorMartins, Sandra
dc.contributor.authorCourt, Melanie
dc.contributor.authorSantos, Catarina Pereira
dc.contributor.authorPaula, José Ricardo
dc.contributor.authorFerreira, Inês João
dc.contributor.authorDiniz, Mário
dc.contributor.authorRepolho, Tiago
dc.contributor.authorRosa, Rui
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.institutionUCIBIO - Applied Molecular Biosciences Unit
dc.contributor.institutionLAQV@REQUIMTE
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2024-03-22T00:34:11Z
dc.date.available2024-03-22T00:34:11Z
dc.date.issued2023-04-10
dc.descriptionThe authors would like to thank the Prince Albert II of Monaco Foundation, Intergovernmental Panel on Climate Change (IPCC), and Camões—Instituto da Cooperação e da Língua, I.P. This research is part of project NGANDU funded by the Portuguese Foundation for Science and Technology (FCT) and the Aga Khan Development Network (AKDN) under grant agreement FCT AGA-KHAN/541746579/2019. This work was co-funded by Programa Operacional Regional de Lisboa, Portugal 2020 and the European Union within the project LISBOA-01-0145-FEDER-028609. All authors acknowledge funding from granted to MARE, project LA/P/0069/2020 granted to the Associate Laboratory ARNET, and project LA/P/0140/2020 of the Associate Laboratory Institute for Health and Bioeconomy—i4HB. Further, CS acknowledges the support from the project AGA-KHAN/541746579/2019, financed by FCT and the Aga Khan Development Network (AKDN), through Nova School of Business and Economics. FCT supported JRP through scientific employment stimulus program (2021.01030.CEECIND). TR was funded through an FCT researcher contract (DL57/2016/CP1479/CT0023). Publisher Copyright: © 2023 by the authors.
dc.description.abstractClimate change is leading to the loss of oxygen content in the oceans and endangering the survival of many marine species. Due to sea surface temperature warming and changing circulation, the ocean has become more stratified and is consequently losing its oxygen content. Oviparous elasmobranchs are particularly vulnerable as they lay their eggs in coastal and shallow areas, where they experience significant oscillations in oxygen levels. Here, we investigated the effects of deoxygenation (93% air saturation) and hypoxia (26% air saturation) during a short-term period (six days) on the anti-predator avoidance behavior and physiology (oxidative stress) of small-spotted catshark (Scyliorhinus canicula) embryos. Their survival rate decreased to 88% and 56% under deoxygenation and hypoxia, respectively. The tail beat rates were significantly enhanced in the embryos under hypoxia compared to those exposed to deoxygenation and control conditions, and the freeze response duration showed a significant opposite trend. Yet, at the physiological level, through the analyses of key biomarkers (SOD, CAT, GPx, and GST activities as well as HSP70, Ubiquitin, and MDA levels), we found no evidence of increased oxidative stress and cell damage under hypoxia. Thus, the present findings show that the projected end-of-the-century deoxygenation levels elicit neglectable biological effects on shark embryos. On the other hand, hypoxia causes a high embryo mortality rate. Additionally, hypoxia makes embryos more vulnerable to predators, because the increased tail beat frequency will enhance the release of chemical and physical cues that can be detected by predators. The shortening of the shark freeze response under hypoxia also makes the embryos more prone to predation.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent13
dc.format.extent1467645
dc.identifier.doi10.3390/biology12040577
dc.identifier.issn2079-7737
dc.identifier.otherPURE: 86048132
dc.identifier.otherPURE UUID: 93d197d4-d50c-485c-a485-8895082daa26
dc.identifier.otherScopus: 85154060279
dc.identifier.otherWOS: 000979025200001
dc.identifier.otherPubMed: 37106777
dc.identifier.otherPubMedCentral: PMC10136306
dc.identifier.urihttp://hdl.handle.net/10362/165284
dc.identifier.urlhttps://www.scopus.com/pages/publications/85154060279
dc.language.isoeng
dc.peerreviewedyes
dc.relationFunding Information: info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FBIA-BMA%2F28609%2F2017/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
dc.relationMarine and Environmental Sciences Centre
dc.relationApplied Molecular Biosciences Unit
dc.relationApplied Molecular Biosciences Unit
dc.relationalterado para: “Immune and neuroendocrine responses of sharks to anthropogenic pressures” Immune and neuroendocrine response to climate change of teleost and cartilaginous fish
dc.relationalterado para: “Sharks in a changing ocean: a multiscale assessment of anthropogenic pressures on key marine predators”, Sharks Sixth Sense in a Changing Ocean - Effects of Ocean Warming and Acidification on Sharks Electroreception Sixth Sense in a Changing Ocean - Effects of Ocean Warming and Acidification on Sharks Electroreception
dc.relationinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F117890%2F2016/PT
dc.subjectclimate change
dc.subjectelasmobranch
dc.subjectembryogenesis
dc.subjectoxygen loss
dc.subjectpredation
dc.subjectsharks
dc.subjectGeneral Biochemistry,Genetics and Molecular Biology
dc.subjectGeneral Immunology and Microbiology
dc.subjectGeneral Agricultural and Biological Sciences
dc.subjectSDG 13 - Climate Action
dc.subjectSDG 14 - Life Below Water
dc.titleImpacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stressen
dc.typejournal article
degois.publication.issue4
degois.publication.titleBiology
degois.publication.volume12
dspace.entity.typePublication
oaire.awardNumberUIDB/04292/2020
oaire.awardNumberUIDP/04378/2020
oaire.awardNumberUIDB/04378/2020
oaire.awardNumberSFRH/BD/145276/2019
oaire.awardNumberSFRH/BD/117890/2016
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardTitlealterado para: “Immune and neuroendocrine responses of sharks to anthropogenic pressures” Immune and neuroendocrine response to climate change of teleost and cartilaginous fish
oaire.awardTitlealterado para: “Sharks in a changing ocean: a multiscale assessment of anthropogenic pressures on key marine predators”, Sharks Sixth Sense in a Changing Ocean - Effects of Ocean Warming and Acidification on Sharks Electroreception Sixth Sense in a Changing Ocean - Effects of Ocean Warming and Acidification on Sharks Electroreception
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04292%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04378%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04378%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F145276%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F117890%2F2016/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
project.funder.identifierhttp://doi.org/10.13039/501100001871
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rcaap.rightsopenAccess
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