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Dietary supplementation with algae-based ingredients modulates antioxidant defenses and immune response in sea urchin Paracentrotus lividus following a Vibrio parahaemolyticus challenge

2026-10Artigo científico Acesso restrito
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg03:Saúde de Qualidade
dc.contributor.authorRodrigues, Ana Filipa
dc.contributor.authorLourenço, S.
dc.contributor.authorGomes, Ana Sofia
dc.contributor.authorVaz, M.
dc.contributor.authorCardoso, H.
dc.contributor.authorViolante, A. P.
dc.contributor.authorBaptista, T.
dc.date.accessioned2026-09-01T13:30:18Z
dc.date.available2026-09-01T13:30:18Z
dc.date.issued2026-10
dc.description.abstractFunctional diets are increasingly recognized as an important strategy to enhance health and production performance in sea urchin aquaculture. This study evaluates the effects of diets containing algae-based ingredients with different carotenoid pigment profiles on the immune and antioxidant systems of the sea urchin Paracentrotus lividus. During a 60-day nutritional trial, sea urchins were fed one of three diets that differed in both ingredient matrix and pigment profile: 1) a base diet formulated without algae and low in carotenoid pigments; 2) a formulated pumpkin/algal diet supplemented with Nannochloropsis sp. and high in β-carotene (nanno diet); and 3) a kelp diet based on Saccorhiza polyschides containing a mixture of carotenoid pigments and representing the natural diet of P. lividus. The effects of diets on oxidative stress response were assessed by quantifying catalase (CAT) and superoxide dismutase (SOD) activities and lipid peroxidation (LPO). The effect of diets on the short-term immune response was assessed using a time-course challenge with Vibrio parahaemolyticus at the end of the feeding trial. Sea urchins fed the kelp diet showed the strongest antioxidant defenses, while sea urchins fed the base diet presented higher LPO. After the pathogen challenge, total coelomocyte density was not significantly affected by diet. However, significant diet-dependent changes were observed in specific coelomocyte populations, including colorless granulocytes, red granulocytes and vibratile cells. Sea urchins fed the kelp diet exhibited a more pronounced immune activation, characterized by higher concentrations of lysozyme. In conclusion, supplementing diets with algae rich in carotenoids and other bioactive compounds may enhance sea urchin immune defenses against pathogens and improve resistance to oxidant stress. These findings support the development of functional diets for sea urchin aquaculture aimed at promoting health and resilience under culture conditions.eng
dc.description.sponsorship2021.07188.BD; CEECINST/00051/2018
dc.identifier.doi10.1016/j.anifeedsci.2026.116981
dc.identifier.issn0377-8401
dc.identifier.urihttp://hdl.handle.net/10400.1/29384
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier BV
dc.relationAquatic Research Infrastructure Network
dc.relationMARE - Marine and Environmental Sciences Centre
dc.relationCEECINST/00051/2018
dc.relation.ispartofAnimal Feed Science and Technology
dc.rights.uriN/A
dc.subjectAquaculture
dc.subjectDietary carotenoid
dc.subjectAntioxidant system
dc.subjectImmune system
dc.subjectPathogen challenge
dc.titleDietary supplementation with algae-based ingredients modulates antioxidant defenses and immune response in sea urchin Paracentrotus lividus following a Vibrio parahaemolyticus challengeeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberLA/P/0069/2020
oaire.awardNumberUID/MAR/04292/2013
oaire.awardTitleAquatic Research Infrastructure Network
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0069%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2013/PT
oaire.citation.startPage116981
oaire.citation.titleAnimal Feed Science and Technology
oaire.citation.volume345
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGomes
person.givenNameAna Sofia
person.identifier.orcid0000-0002-6565-9370
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.isAuthorOfPublication19a54a67-840e-43f0-848b-3b1bae48738d
relation.isAuthorOfPublication.latestForDiscovery19a54a67-840e-43f0-848b-3b1bae48738d
relation.isProjectOfPublication5af011f9-3888-449a-a18c-d08b59e87091
relation.isProjectOfPublication10d45e59-7729-4f62-9521-f5adc560d562
relation.isProjectOfPublication.latestForDiscovery5af011f9-3888-449a-a18c-d08b59e87091

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