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Eco-innovative aquafeeds biofortified with asparagopsis taxiformis to improve the resilience of farmed white seabream (Diplodus sargus) to marine heatwave events

2024-08Journal article Open access
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dc.contributor.authorMarmelo, Isa
dc.contributor.authorLourenço-Marques, Cátia
dc.contributor.authorSilva, Iris A.L.
dc.contributor.authorSoares, Florbela
dc.contributor.authorPousão-Ferreira, Pedro
dc.contributor.authorMata, Leonardo
dc.contributor.authorMarques, António
dc.contributor.authorDiniz, Mário Sousa
dc.contributor.authorMaulvault, Ana Luísa
dc.date.accessioned2024-10-04T10:41:31Z
dc.date.available2024-10-04T10:41:31Z
dc.date.issued2024-08
dc.description.abstractExtreme weather events, like marine heatwaves (MHWs), are becoming more frequent and severe due to climate change, posing several challenges to marine ecosystems and their services. As disease outbreaks are often prompted by these acute phenomena, it is essential to develop ecoinnovative strategies that can efficiently improve farmed fish resilience, especially under suboptimal rearing conditions, thereby ensuring a sustainable aquaculture production. This study aimed to unveil farmed juvenile white seabream ( Diplodus sargus, , 28.50 +/- 1.10 g weight, n = 150) immune and antioxidant responses under a category II MHW in the Mediterranean Sea (+4 degrees C, 8 days of temperature increase plus 15 days of plateau at the peak temperature) and to investigate whether a 30 days period of prophylactic biofortification with Asparagopsis taxiformis (1.5 %, 3 % and 6 %) enhanced fish resilience to these extreme events. Several biomarkers from different organization levels (individual, cellular, biochemical and molecular) were assessed upon 30 days of biofortification (T30), exposure (after 8 days of temperature increase + 15 days at peak temperature, T53) and recovery (8 days of temperature decrease, T61) from the MHW. Results showed that MHW negatively affected the fish physiological status and overall wellbeing, decreasing specific growth rate (SGR) and haematocrit (Ht) and increasing erythrocyte nuclear abnormalities (ENAs) and lipid peroxidation (LPO). These adverse effects were alleviated through biofortification with A. taxiformis. . Seaweed inclusion at 1.5 % was the most effective dose to minimize the severity of MHW effects, significantly improving immune responses of D. sargus (i.e. increased levels of immunoglobulin M, peroxidase activity and lysozyme expression) and modulating antioxidant responses (i.e. decreased LPO, catalase and glutathione S-transferase activity). These findings confirm that A. taxiformis is a functional ingredient of added value to the aquaculture industry, as its inclusion in marine fish diets can beneficially modulate fish immunity and resilience under optimal and adverse rearing conditions.eng
dc.description.sponsorshipPTDC/CTA-AMB/0592/2021; 2020.04413.BD
dc.identifier.doi10.1016/j.heliyon.2024.e35135
dc.identifier.issn2405-8440
dc.identifier.urihttp://hdl.handle.net/10400.1/25999
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationApplied Molecular Biosciences Unit
dc.relationInstitute for Health and Bioeconomy
dc.relation.ispartofHeliyon
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAquaculture
dc.subjectClimate change
dc.subjectFunctional feeds
dc.subjectMacroalgae
dc.subjectImmune response
dc.subjectAntioxidant response
dc.titleEco-innovative aquafeeds biofortified with asparagopsis taxiformis to improve the resilience of farmed white seabream (Diplodus sargus) to marine heatwave eventseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleApplied Molecular Biosciences Unit
oaire.awardTitleInstitute for Health and Bioeconomy
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04378%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0140%2F2020/PT
oaire.citation.issue15
oaire.citation.startPagee35135
oaire.citation.titleHeliyon
oaire.citation.volume10
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMata
person.givenNameLeonardo
person.identifier.ciencia-idFD1E-A7E5-DD71
person.identifier.orcid0000-0002-5962-2483
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
relation.isAuthorOfPublicationa675985d-ff57-4045-90c6-034e23fa04b8
relation.isAuthorOfPublication.latestForDiscoverya675985d-ff57-4045-90c6-034e23fa04b8
relation.isProjectOfPublicationd757db4f-13fb-4e5a-aef0-7c770c414912
relation.isProjectOfPublicationaa89733d-ccad-4fd3-b596-27382f53b0ca
relation.isProjectOfPublication.latestForDiscoveryd757db4f-13fb-4e5a-aef0-7c770c414912

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