Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift

14 pages, 6 figures, 2 tables.-- This is an open access article distributed under the Creative Commons Attribution License

Detalles Bibliográficos
Autores: Hernández-Urcera, Jorge, Dias Carneiro, Mario, Planas, Miguel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/275235
Acceso en línea:http://hdl.handle.net/10261/275235
Access Level:acceso abierto
Palabra clave:Hippocampus
Seahorses
Diet switch
Stable isotopes
Turnover
Discrimination factor
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spelling Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet ShiftHernández-Urcera, JorgeDias Carneiro, MarioPlanas, MiguelHippocampusSeahorsesDiet switchStable isotopesTurnoverDiscrimination factor14 pages, 6 figures, 2 tables.-- This is an open access article distributed under the Creative Commons Attribution LicenseThe initial development of seahorse juveniles is characterized by low digestion capabilities. Stable isotope analysis is an effective tool in studies of trophic food webs and animal feeding patterns. The present study provides new insights for the understanding of growth and food assimilation in early developing seahorses following a laboratory diet switch. The study was performed in the early life stages of the seahorse Hippocampus reidi by assessing the influence of diet shift on changes and turnovers in carbon (δ13C) and nitrogen (δ15N) stable isotope in juveniles. Newborn seahorses were fed for 60 days following two feeding schedules (A6 and A11) based initially on copepods Acartia tonsa and subsequently on Artemia nauplii (since days 6 and 11, respectively). After the prey shift, we determined δ13C and δ15N turnover rates as functions of change in either body mass (fitting model G) and days of development (fitting model D), contributions of metabolism and growth to those turnover rates, and diet–tissue discrimination factors. Survival, final dry weight, and final standard length for diet A11 were higher compared to diet A6. The shift from copepods to Artemia led to fast initial enrichments in δ13C and δ15N. Afterwards, the enrichment was gradually reduced until the isotopic equilibrium with the diet was reached. In most cases, both fitting models performed similarly. The isotopic analysis revealed that 100% of tissue turnover was attributed to growth in diet A11, whereas 19–25% was linked to metabolism in diet A6. Diet–tissue discrimination factors were estimated for the first time in seahorse juveniles, resulting in higher estimates for diet A11 (2.9 ± 0.7‰ for δ13C; 2.5 ± 0.2‰ for δ15N) than in diet A6 (1.8 ± 0.1‰ for δ13C; 1.9 ± 0.1‰ for δ15N). This study highlights the relevance of feeding on copepods and their effect on isotopic patterns and discrimination factors in seahorse juveniles after a dietary shift. Regarding the application of the results achieved in relation to the feeding schedules in the rearing of H. reidi, a long period of feeding on copepods during the first days of development is highly recommendedThis study was financially supported by the Spanish Government with Project Hippoeco (Ref. CGL2015-68110-R, Ministerio de Ciencia, Innovación y Universidades and Fondos FEDER). J.H.U. was supported by a Juan de la Cierva’s post-doc research grant (IJC-2020-043701; Ministerio de Ciencia e Innovación, Spain), and M.D.D.C. was granted by Fundação Coordenação de Aperfeiçoamento de Pessoal de Nível Superior–CAPES (PDSE 88881.187275/2018-01; Ministério da Educação–MEC, Brazil)Peer reviewedMultidisciplinary Digital Publishing InstituteMinisterio de Ciencia, Innovación y Universidades (España)Ministerio de Ciencia e Innovación (España)Ministério da Educação (Brasil)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/275235reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO//CGL2015-68110-RPlanas, Miquel; 2022; Data: Stable isotopes Hippocampus reidi juveniles - Diet shift [Dataset]; Mendeley Data; Version 1; http://doi.org/10.17632/v5vbs8dn2m.1https://doi.org/10.3390/ani12101232Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2752352026-05-22T06:33:51Z
dc.title.none.fl_str_mv Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
title Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
spellingShingle Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
Hernández-Urcera, Jorge
Hippocampus
Seahorses
Diet switch
Stable isotopes
Turnover
Discrimination factor
title_short Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
title_full Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
title_fullStr Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
title_full_unstemmed Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
title_sort Turnover Rates and Diet–Tissue Discrimination Factors of Nitrogen and Carbon Stable Isotopes in Seahorse Hippocampus reidi Juveniles Following a Laboratory Diet Shift
dc.creator.none.fl_str_mv Hernández-Urcera, Jorge
Dias Carneiro, Mario
Planas, Miguel
author Hernández-Urcera, Jorge
author_facet Hernández-Urcera, Jorge
Dias Carneiro, Mario
Planas, Miguel
author_role author
author2 Dias Carneiro, Mario
Planas, Miguel
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Ministerio de Ciencia e Innovación (España)
Ministério da Educação (Brasil)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Hippocampus
Seahorses
Diet switch
Stable isotopes
Turnover
Discrimination factor
topic Hippocampus
Seahorses
Diet switch
Stable isotopes
Turnover
Discrimination factor
description 14 pages, 6 figures, 2 tables.-- This is an open access article distributed under the Creative Commons Attribution License
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/275235
url http://hdl.handle.net/10261/275235
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO//CGL2015-68110-R
Planas, Miquel; 2022; Data: Stable isotopes Hippocampus reidi juveniles - Diet shift [Dataset]; Mendeley Data; Version 1; http://doi.org/10.17632/v5vbs8dn2m.1
https://doi.org/10.3390/ani12101232
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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