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Exploring Isochrysis galbana Biomass Formats: Effects on Live Prey Oxidative Status and Lipid Profiles for Their Potential Use in Aquaculture Larval Nutrition

2025-07-27Artigo de investigação Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg14:Proteger a Vida Marinha
dc.contributor.authorGalindo, Ana
dc.contributor.authorPérez, José
dc.contributor.authorMora, Annia
dc.contributor.authorReis, Diana
dc.contributor.authorAlmansa, Eduardo
dc.contributor.authorJiménez, Ignacio
dc.contributor.authorBarreto, Maria Carmo
dc.contributor.authorVenuleo, Marianna
dc.contributor.authorAcosta, Nieves
dc.contributor.authorRodríguez, Covadonga
dc.contributor.editorWei, Lee Seong
dc.date.accessioned2026-01-26T10:43:19Z
dc.date.available2026-01-26T10:43:19Z
dc.date.issued2025-07-27
dc.description.abstractABSTRACT: Feeding marine larvae commonly relies on live prey, which must be enriched with lipid emulsions and/or microalgae rich in long-chain polyunsaturated fatty acids (LC-PUFA) before being added to larval tanks. This enrichment enhances the nutritional value of live feed and supports larval health and growth. Microalgae are also used in aquaculture as a primary feed source for larvae and for maintaining water quality. However, in-house microalgal cultures are costly, prone to contamination, and require complex harvesting. Sourcing live microalgae from external specialized facilities is also expensive and complicated, as it involves transporting highly diluted biomass, creating a major bottleneck in hatcheries. Consequently, alternative formats of microalgal biomass, including fresh or dried forms, are gaining attention for their ease of use, nutritional stability, and antioxidant potential. To evaluate some of these concentrated biomass substitutes, different formats of Isochrysis galbana (spray-dried [ISD], fresh [IFRE], and frozen [IFRO]) were tested on the rotifer Brachionus plicatilis and Artemia. Prior to the assay, the total antioxidant capacity and lipid composition of the microalgal products were evaluated. Subsequently, live prey were fed the different I. galbana formats for 24 h, after which prey survival, lipid composition, and oxidative status were assessed. Our results showed that fresh/frozen I. galbana exhibited the highest in vitro antioxidant activity, particularly in the ethyl acetate fraction. However, rotifer survival was compromised when using the IFRE format. The spray-dried microalgae was the best format to enhance phospholipid retention in both zooplankton species, also increasing DHA/EPA (22:6n–3/20:5n–3) ratio and n–3 LC-PUFA content in rotifers. ISD also reduced lipid peroxidation in Artemia without negatively affecting the live prey culture. In conclusion, based on lipid composition and antioxidant potential, ISD was the most effective format for feeding rotifers and Artemia.eng
dc.identifier.citationGalindo, A. J. A., Mora, M., Reis, D. B., Almansa, E., Jiménez, I. A., Barreto, M. C., Venuleo, M., Acosta, N. G., & Rodríguez, C. (2025). Exploring Isochrysis galbana Biomass Formats: Effects on Live Prey Oxidative Status and Lipid Profiles for Their Potential Use in Aquaculture Larval Nutrition. Aquaculture Nutrition, 2025(1), 8824628. DOI: 10.1155/anu/8824628
dc.identifier.eissn1365-2095
dc.identifier.issn1353-5773
dc.identifier.urihttp://hdl.handle.net/10400.3/8807
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley-Hindawi
dc.relationTHINKINAZUL Programme - PRTR-C17.I1 - Ministério da Ciência e Inovação (Espanha) e NextGenerationEU
dc.relationACUICONECTA - 1/MAC/1/1.1/0123 - Interreg MAC 2021–2027 (85% FEDER)
dc.relationPID2022-136549OB-100 - MCIN/AEI/10.13039/501100011033 e FEDER (UE)
dc.relationcE3c – Centre for Ecology, Evolution and Environmental Changes - UIDB/00329/2020-2024 - FCT, QREN, FEDER e COMPETE
dc.relation.hasversionhttps://onlinelibrary.wiley.com/doi/10.1155/anu/8824628
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectantioxidant capacity
dc.subjectaquacultureindustry
dc.subjectArtemia
dc.subjectIsochrysis galbana
dc.subjectlipidprofile
dc.subjectnutritivevalue
dc.subjectrotifer
dc.titleExploring Isochrysis galbana Biomass Formats: Effects on Live Prey Oxidative Status and Lipid Profiles for Their Potential Use in Aquaculture Larval Nutritioneng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage13
oaire.citation.issue8824628
oaire.citation.startPage1
oaire.citation.titleAquaculture Nutrition
oaire.citation.volume2025
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameBarreto
person.givenNameMaria Carmo
person.identifier.orcid0000-0001-8377-616X
person.identifier.scopus-author-id37076751100
relation.isAuthorOfPublicationa6d28571-a4a1-4882-8bef-6e3ec3b359dd
relation.isAuthorOfPublication.latestForDiscoverya6d28571-a4a1-4882-8bef-6e3ec3b359dd

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