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Inclusion of carotenoids and Eicosapentaenoic Acid (EPA) in sea urchin (Paracentrotus lividus) broodstock diets improves gonad development and oocyte quality

2026-07-23Artigo científico Acesso aberto
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorGomes da Silva, Ana Paula
dc.contributor.authorRodrigues, A. F.
dc.contributor.authorNeves, M.
dc.contributor.authorRoseiro, C.
dc.contributor.authorCardoso, H.
dc.contributor.authorViolante, A. P.
dc.contributor.authorGavaia, Paulo
dc.contributor.authorSuckling, C.
dc.contributor.authorLourenço, S.
dc.date.accessioned2026-09-28T13:35:57Z
dc.date.available2026-09-28T13:35:57Z
dc.date.issued2026-07-23
dc.description.abstractIn aquaculture, broodstock conditioning diets are essential for enhancing reproductive performance, particularly as offspring survival remains a primary bottleneck in sea urchin production. This study investigated the effects of different broodstock diets on gonad development, fatty acid profiles, and oocyte size in the sea urchin Paracentrotus lividus. To determine if maternal investment could be enhanced through specific nutrients, three diets that differed in both ingredient matrix and pigment profile were tested over a two-month feeding period: 1) a formulated pumpkin/algal diet (PA) enriched with β-carotene via pumpkin and Nannochloropsis sp.; 2) a formulated pea/corn diet (PC) with a low-pigment profile, and 3) a natural kelp diet based on Saccorhiza polyschides, representing one of the natural foods for P. lividus in its local habitat. This Kelp diet provided a mixed-pigment reference with relatively high total carotenoids. Following the feeding trial, several key parameters were assessed, including gonadosomatic index (GSI), reproductive stage, fatty acid composition, oocyte size, and fertilization success. Results indicated that females fed the PA diet produced oocytes that were 18% larger and achieved a 7% higher fertilization rate than those on the PC diet. This enhancement is likely linked to the significantly higher deposition of carotenoids and omega-3 polyunsaturated fatty acids (n-3 PUFA) in the gonads. In contrast, while the PC diet promoted a high GSI, it resulted in smaller oocytes and lower fertilization rates, due to a deficiency in n-3 PUFA in their gonads. Females fed the Kelp diet presented the slowest gonadal development and failed to spawn, suggesting that seaweed is insufficient as a sole food source for short-term broodstock conditioning to support reproduction. This research provides valuable insights into developing broodstock conditioning diets by exploring alternative nutrient sources, such as pumpkin and microalgae, to enhance reproductive traits, particularly for emerging species like sea urchins.eng
dc.description.sponsorshipUID/04326/2025; UID/PRR/04326/2025; LA/P/0101/2020; CEECINST/00051/2018
dc.identifier.doi10.1007/s10499-026-02609-9
dc.identifier.issn1573-143X
dc.identifier.urihttp://hdl.handle.net/10400.1/29530
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Science and Business Media LLC
dc.relationAquatic Research Infrastructure Network
dc.relationMARE - Marine and Environmental Sciences Centre
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofAquaculture International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectEchinoderm
dc.subjectConditioning
dc.subjectReproduction
dc.subjectCarotenoids
dc.subjectFatty acids
dc.titleInclusion of carotenoids and Eicosapentaenoic Acid (EPA) in sea urchin (Paracentrotus lividus) broodstock diets improves gonad development and oocyte qualityeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberLA/P/0069/2020
oaire.awardNumberUID/MAR/04292/2019
oaire.awardNumberLA/P/0101/2020
oaire.awardTitleAquatic Research Infrastructure Network
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardTitleCentre for Marine and Environmental Research
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%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue6
oaire.citation.titleAquaculture International
oaire.citation.volume34
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGomes da Silva
person.familyNameGavaia
person.givenNameAna Paula
person.givenNamePaulo
person.identifier.ciencia-idB619-FC16-D007
person.identifier.orcid0000-0001-5853-250X
person.identifier.orcid0000-0002-9582-1957
person.identifier.ridA-6470-2011
person.identifier.scopus-author-id6507104377
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublicationa7790ccc-cefe-41f2-94ee-6e9e2f50d32a
relation.isAuthorOfPublication9dca2139-21a4-4d59-aaf7-531f1033a58e
relation.isAuthorOfPublication.latestForDiscoverya7790ccc-cefe-41f2-94ee-6e9e2f50d32a
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