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

Bibliographic Details
Main Author: Varela, Jaquelino
Publication Date: 2023
Other Authors: Martins, Sandra, Court, Melanie, Santos, Catarina Pereira, Paula, José Ricardo, Ferreira, Inês João, Diniz, Mário, Repolho, Tiago, Rosa, Rui
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10362/165284
Summary: The 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.
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spelling Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stressclimate changeelasmobranchembryogenesisoxygen losspredationsharksBiochemistry, Genetics and Molecular Biology(all)Immunology and Microbiology(all)Agricultural and Biological Sciences(all)SDG 13 - Climate ActionSDG 14 - Life Below WaterThe 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.Climate 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.DQ - Departamento de QuímicaUCIBIO - Applied Molecular Biosciences UnitLAQV@REQUIMTERUNVarela, JaquelinoMartins, SandraCourt, MelanieSantos, Catarina PereiraPaula, José RicardoFerreira, Inês JoãoDiniz, MárioRepolho, TiagoRosa, Rui2024-03-22T00:34:11Z2023-04-102023-04-10T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttp://hdl.handle.net/10362/165284eng2079-7737PURE: 86048132https://doi.org/10.3390/biology12040577info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T18:19:50Zoai:run.unl.pt:10362/165284Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:50:38.156583Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
title Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
spellingShingle Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
Varela, Jaquelino
climate change
elasmobranch
embryogenesis
oxygen loss
predation
sharks
Biochemistry, Genetics and Molecular Biology(all)
Immunology and Microbiology(all)
Agricultural and Biological Sciences(all)
SDG 13 - Climate Action
SDG 14 - Life Below Water
title_short Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
title_full Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
title_fullStr Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
title_full_unstemmed Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
title_sort Impacts of Deoxygenation and Hypoxia on Shark Embryos Anti-Predator Behavior and Oxidative Stress
author Varela, Jaquelino
author_facet Varela, Jaquelino
Martins, Sandra
Court, Melanie
Santos, Catarina Pereira
Paula, José Ricardo
Ferreira, Inês João
Diniz, Mário
Repolho, Tiago
Rosa, Rui
author_role author
author2 Martins, Sandra
Court, Melanie
Santos, Catarina Pereira
Paula, José Ricardo
Ferreira, Inês João
Diniz, Mário
Repolho, Tiago
Rosa, Rui
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv DQ - Departamento de Química
UCIBIO - Applied Molecular Biosciences Unit
LAQV@REQUIMTE
RUN
dc.contributor.author.fl_str_mv Varela, Jaquelino
Martins, Sandra
Court, Melanie
Santos, Catarina Pereira
Paula, José Ricardo
Ferreira, Inês João
Diniz, Mário
Repolho, Tiago
Rosa, Rui
dc.subject.por.fl_str_mv climate change
elasmobranch
embryogenesis
oxygen loss
predation
sharks
Biochemistry, Genetics and Molecular Biology(all)
Immunology and Microbiology(all)
Agricultural and Biological Sciences(all)
SDG 13 - Climate Action
SDG 14 - Life Below Water
topic climate change
elasmobranch
embryogenesis
oxygen loss
predation
sharks
Biochemistry, Genetics and Molecular Biology(all)
Immunology and Microbiology(all)
Agricultural and Biological Sciences(all)
SDG 13 - Climate Action
SDG 14 - Life Below Water
description The 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.
publishDate 2023
dc.date.none.fl_str_mv 2023-04-10
2023-04-10T00:00:00Z
2024-03-22T00:34:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/165284
url http://hdl.handle.net/10362/165284
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2079-7737
PURE: 86048132
https://doi.org/10.3390/biology12040577
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 13
application/pdf
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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