Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes

Autores
Scodelaro Bilbao, Paola Gabriela; Berasategui, Anabela Anhi
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The microalga Rhodomonas sp. is important as live feed for copepod production. Thus, improving its growth and biochemical composition is essential for aquaculture. In this work, the utilization of a liquid fertilizer as an alternative growing medium of Rhodomonas sp. was studied. The strain was grown in cultivation bags at a final volume of 5 L at 15°C ± 1°C, light intensity of 60 μmol photons m-2 s-1 and under continuous light. Both culture conditions were prepared using sterile seawater and then adding B1 (1mL/L) culture medium (control) or liquid fertilizer (1mL/L) (fertilizer condition). Then, cell density, dry weight, lipid content and fatty acid composition of Rhodomonas sp. were determined. The use of fertilizer induced an increase in cell number and dry weight. In addition, triacylgliceride and sterol content significantly increased when Rhodomonas sp. were grown in the presence of fertilizer. Fatty acid composition showed that the percentage of eicosapentenoic (EPA, C 20:5n3) and docosahexaenoic (DHA, C 22:6n3) fatty acids (FAs), the most required by copepods, significantly increased at expense of palmitic (C 16:0) and oleic (C 18:1n9) FAs. Finally, both Rhodomonas sp. cultures (control and fertilizer conditions) were used as living food for the native copepod Acartia tonsa, isolated from Bahia Blanca?s Estuary. Then, the reproductive success was measured in terms of egg production. The results revealed that Rhodomonas sp. grown in the presence of fertilizer induced a significant increase in the total number of eggs. Thus, the results presented suggest that microalgal biochemical composition directly impacts on copepod reproduction, supporting the importance of this study to improve the production of native aquatic species for aquaculture purposes.
Fil: Scodelaro Bilbao, Paola Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Berasategui, Anabela Anhi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica y XVI Annual Meeting of the Argentinean Society for General Microbiology
Mendoza
Argentina
Sociedad Argentina de Investigación en Bioquímica y Biología Molecular
Materia
Rhodomonas sp.
Lípidos bioactivos
Acuicultura
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/257712
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/257712
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposesScodelaro Bilbao, Paola GabrielaBerasategui, Anabela AnhiRhodomonas sp.Lípidos bioactivosAcuiculturahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The microalga Rhodomonas sp. is important as live feed for copepod production. Thus, improving its growth and biochemical composition is essential for aquaculture. In this work, the utilization of a liquid fertilizer as an alternative growing medium of Rhodomonas sp. was studied. The strain was grown in cultivation bags at a final volume of 5 L at 15°C ± 1°C, light intensity of 60 μmol photons m-2 s-1 and under continuous light. Both culture conditions were prepared using sterile seawater and then adding B1 (1mL/L) culture medium (control) or liquid fertilizer (1mL/L) (fertilizer condition). Then, cell density, dry weight, lipid content and fatty acid composition of Rhodomonas sp. were determined. The use of fertilizer induced an increase in cell number and dry weight. In addition, triacylgliceride and sterol content significantly increased when Rhodomonas sp. were grown in the presence of fertilizer. Fatty acid composition showed that the percentage of eicosapentenoic (EPA, C 20:5n3) and docosahexaenoic (DHA, C 22:6n3) fatty acids (FAs), the most required by copepods, significantly increased at expense of palmitic (C 16:0) and oleic (C 18:1n9) FAs. Finally, both Rhodomonas sp. cultures (control and fertilizer conditions) were used as living food for the native copepod Acartia tonsa, isolated from Bahia Blanca?s Estuary. Then, the reproductive success was measured in terms of egg production. The results revealed that Rhodomonas sp. grown in the presence of fertilizer induced a significant increase in the total number of eggs. Thus, the results presented suggest that microalgal biochemical composition directly impacts on copepod reproduction, supporting the importance of this study to improve the production of native aquatic species for aquaculture purposes.Fil: Scodelaro Bilbao, Paola Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; ArgentinaFil: Berasategui, Anabela Anhi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaLVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica y XVI Annual Meeting of the Argentinean Society for General MicrobiologyMendozaArgentinaSociedad Argentina de Investigación en Bioquímica y Biología MolecularTech Science Press2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/257712Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes; LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica y XVI Annual Meeting of the Argentinean Society for General Microbiology; Mendoza; Argentina; 2021; 85-850327-95451667-5746CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://saib.org.ar/archivos/biocell-46.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:08:54Zoai:ri.conicet.gov.ar:11336/257712instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:08:54.808CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
title Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
spellingShingle Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
Scodelaro Bilbao, Paola Gabriela
Rhodomonas sp.
Lípidos bioactivos
Acuicultura
title_short Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
title_full Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
title_fullStr Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
title_full_unstemmed Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
title_sort Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes
dc.creator.none.fl_str_mv Scodelaro Bilbao, Paola Gabriela
Berasategui, Anabela Anhi
author Scodelaro Bilbao, Paola Gabriela
author_facet Scodelaro Bilbao, Paola Gabriela
Berasategui, Anabela Anhi
author_role author
author2 Berasategui, Anabela Anhi
author2_role author
dc.subject.none.fl_str_mv Rhodomonas sp.
Lípidos bioactivos
Acuicultura
topic Rhodomonas sp.
Lípidos bioactivos
Acuicultura
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The microalga Rhodomonas sp. is important as live feed for copepod production. Thus, improving its growth and biochemical composition is essential for aquaculture. In this work, the utilization of a liquid fertilizer as an alternative growing medium of Rhodomonas sp. was studied. The strain was grown in cultivation bags at a final volume of 5 L at 15°C ± 1°C, light intensity of 60 μmol photons m-2 s-1 and under continuous light. Both culture conditions were prepared using sterile seawater and then adding B1 (1mL/L) culture medium (control) or liquid fertilizer (1mL/L) (fertilizer condition). Then, cell density, dry weight, lipid content and fatty acid composition of Rhodomonas sp. were determined. The use of fertilizer induced an increase in cell number and dry weight. In addition, triacylgliceride and sterol content significantly increased when Rhodomonas sp. were grown in the presence of fertilizer. Fatty acid composition showed that the percentage of eicosapentenoic (EPA, C 20:5n3) and docosahexaenoic (DHA, C 22:6n3) fatty acids (FAs), the most required by copepods, significantly increased at expense of palmitic (C 16:0) and oleic (C 18:1n9) FAs. Finally, both Rhodomonas sp. cultures (control and fertilizer conditions) were used as living food for the native copepod Acartia tonsa, isolated from Bahia Blanca?s Estuary. Then, the reproductive success was measured in terms of egg production. The results revealed that Rhodomonas sp. grown in the presence of fertilizer induced a significant increase in the total number of eggs. Thus, the results presented suggest that microalgal biochemical composition directly impacts on copepod reproduction, supporting the importance of this study to improve the production of native aquatic species for aquaculture purposes.
Fil: Scodelaro Bilbao, Paola Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina
Fil: Berasategui, Anabela Anhi. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica y XVI Annual Meeting of the Argentinean Society for General Microbiology
Mendoza
Argentina
Sociedad Argentina de Investigación en Bioquímica y Biología Molecular
description The microalga Rhodomonas sp. is important as live feed for copepod production. Thus, improving its growth and biochemical composition is essential for aquaculture. In this work, the utilization of a liquid fertilizer as an alternative growing medium of Rhodomonas sp. was studied. The strain was grown in cultivation bags at a final volume of 5 L at 15°C ± 1°C, light intensity of 60 μmol photons m-2 s-1 and under continuous light. Both culture conditions were prepared using sterile seawater and then adding B1 (1mL/L) culture medium (control) or liquid fertilizer (1mL/L) (fertilizer condition). Then, cell density, dry weight, lipid content and fatty acid composition of Rhodomonas sp. were determined. The use of fertilizer induced an increase in cell number and dry weight. In addition, triacylgliceride and sterol content significantly increased when Rhodomonas sp. were grown in the presence of fertilizer. Fatty acid composition showed that the percentage of eicosapentenoic (EPA, C 20:5n3) and docosahexaenoic (DHA, C 22:6n3) fatty acids (FAs), the most required by copepods, significantly increased at expense of palmitic (C 16:0) and oleic (C 18:1n9) FAs. Finally, both Rhodomonas sp. cultures (control and fertilizer conditions) were used as living food for the native copepod Acartia tonsa, isolated from Bahia Blanca?s Estuary. Then, the reproductive success was measured in terms of egg production. The results revealed that Rhodomonas sp. grown in the presence of fertilizer induced a significant increase in the total number of eggs. Thus, the results presented suggest that microalgal biochemical composition directly impacts on copepod reproduction, supporting the importance of this study to improve the production of native aquatic species for aquaculture purposes.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/257712
Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes; LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica y XVI Annual Meeting of the Argentinean Society for General Microbiology; Mendoza; Argentina; 2021; 85-85
0327-9545
1667-5746
CONICET Digital
CONICET
url http://hdl.handle.net/11336/257712
identifier_str_mv Utilization of a liquid fertilizer to improve Rhodomonas sp. lipid composition for aquaculture purposes; LVII Reunión Anual de Sociedad Argentina de Investigación Bioquímica y XVI Annual Meeting of the Argentinean Society for General Microbiology; Mendoza; Argentina; 2021; 85-85
0327-9545
1667-5746
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://saib.org.ar/archivos/biocell-46.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Tech Science Press
publisher.none.fl_str_mv Tech Science Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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