Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/180388 |
Resumo: | Understanding species linkages and energy transfer is a basic goal underlying any attempt at ecosystem analysis. Although the first food-web studies were based on gut contents of captured specimens, the assessment of stable isotopes, mainly δ13C and δ15N, has become a standard methodology for wide-range analyses in the last 30 years. Stable isotopes provide information on the trophic level of species, food-web length, and origin of organic matter ingested by consumers. In this study, we analyzed the ontogenetic variability of δ13C and δ15N obtained from samples of three Neotropical fish species: silver sardine (Lycengraulis grossidens, n=46), white lambari (Cyanocharax alburnus, n= 26), and the red-tail lambari (Astyanax fasciatus, n=23) in Pinguela Lagoon, southern Brazil. We developed a new metric, called the Weighted Isotopic Signature (φ 15N or φ 13C,‰), that incorporates ontogenetic variability, body growth, and natural mortality into a single number. |
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Fontoura, Nelson FerreiraRodrigues, Lúcia Helena RibeiroRosemberg, Cibele Boeira BatistaPersch, Tanilene Sotero PintoJanowicz, Mariola E.2018-07-12T02:25:55Z20151932-6203http://hdl.handle.net/10183/180388001072209Understanding species linkages and energy transfer is a basic goal underlying any attempt at ecosystem analysis. Although the first food-web studies were based on gut contents of captured specimens, the assessment of stable isotopes, mainly δ13C and δ15N, has become a standard methodology for wide-range analyses in the last 30 years. Stable isotopes provide information on the trophic level of species, food-web length, and origin of organic matter ingested by consumers. In this study, we analyzed the ontogenetic variability of δ13C and δ15N obtained from samples of three Neotropical fish species: silver sardine (Lycengraulis grossidens, n=46), white lambari (Cyanocharax alburnus, n= 26), and the red-tail lambari (Astyanax fasciatus, n=23) in Pinguela Lagoon, southern Brazil. We developed a new metric, called the Weighted Isotopic Signature (φ 15N or φ 13C,‰), that incorporates ontogenetic variability, body growth, and natural mortality into a single number.application/pdfengPLOS ONE. San Francisco. Vol. 10, n. 5 (May 2015), e0125059, 11 p.OntogenéticaCadeias alimentaresMortalidade animalIsótopos estáveisDinâmica populacionalPeixesModelagem ecológicaEcossistemas aquáticosLagoasNíveis tróficosDesenvolvimento animalIntegrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signaturesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001072209.pdf001072209.pdfTexto completo (inglês)application/pdf545720http://www.lume.ufrgs.br/bitstream/10183/180388/1/001072209.pdf5c4eaefa968c284e62c71d7590ada1e9MD51TEXT001072209.pdf.txt001072209.pdf.txtExtracted Texttext/plain31064http://www.lume.ufrgs.br/bitstream/10183/180388/2/001072209.pdf.txt231cdc06420a5a24959f1900825feb22MD5210183/1803882023-09-24 03:36:46.511209oai:www.lume.ufrgs.br:10183/180388Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-24T06:36:46Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
title |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
spellingShingle |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures Fontoura, Nelson Ferreira Ontogenética Cadeias alimentares Mortalidade animal Isótopos estáveis Dinâmica populacional Peixes Modelagem ecológica Ecossistemas aquáticos Lagoas Níveis tróficos Desenvolvimento animal |
title_short |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
title_full |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
title_fullStr |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
title_full_unstemmed |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
title_sort |
Integrating ontogenetic shift, growth and mortality to determine a species' ecological role from isotopic signatures |
author |
Fontoura, Nelson Ferreira |
author_facet |
Fontoura, Nelson Ferreira Rodrigues, Lúcia Helena Ribeiro Rosemberg, Cibele Boeira Batista Persch, Tanilene Sotero Pinto Janowicz, Mariola E. |
author_role |
author |
author2 |
Rodrigues, Lúcia Helena Ribeiro Rosemberg, Cibele Boeira Batista Persch, Tanilene Sotero Pinto Janowicz, Mariola E. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Fontoura, Nelson Ferreira Rodrigues, Lúcia Helena Ribeiro Rosemberg, Cibele Boeira Batista Persch, Tanilene Sotero Pinto Janowicz, Mariola E. |
dc.subject.por.fl_str_mv |
Ontogenética Cadeias alimentares Mortalidade animal Isótopos estáveis Dinâmica populacional Peixes Modelagem ecológica Ecossistemas aquáticos Lagoas Níveis tróficos Desenvolvimento animal |
topic |
Ontogenética Cadeias alimentares Mortalidade animal Isótopos estáveis Dinâmica populacional Peixes Modelagem ecológica Ecossistemas aquáticos Lagoas Níveis tróficos Desenvolvimento animal |
description |
Understanding species linkages and energy transfer is a basic goal underlying any attempt at ecosystem analysis. Although the first food-web studies were based on gut contents of captured specimens, the assessment of stable isotopes, mainly δ13C and δ15N, has become a standard methodology for wide-range analyses in the last 30 years. Stable isotopes provide information on the trophic level of species, food-web length, and origin of organic matter ingested by consumers. In this study, we analyzed the ontogenetic variability of δ13C and δ15N obtained from samples of three Neotropical fish species: silver sardine (Lycengraulis grossidens, n=46), white lambari (Cyanocharax alburnus, n= 26), and the red-tail lambari (Astyanax fasciatus, n=23) in Pinguela Lagoon, southern Brazil. We developed a new metric, called the Weighted Isotopic Signature (φ 15N or φ 13C,‰), that incorporates ontogenetic variability, body growth, and natural mortality into a single number. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015 |
dc.date.accessioned.fl_str_mv |
2018-07-12T02:25:55Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/180388 |
dc.identifier.issn.pt_BR.fl_str_mv |
1932-6203 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001072209 |
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1932-6203 001072209 |
url |
http://hdl.handle.net/10183/180388 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
PLOS ONE. San Francisco. Vol. 10, n. 5 (May 2015), e0125059, 11 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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UFRGS |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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