Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/17451000.2019.1572194 http://hdl.handle.net/11449/188710 |
Resumo: | To promote marine conservation and sustainable resources use it is highly important to understand reef fish population structure and dynamics. The sergeant major, Abudefduf saxatilis, is a common and abundant fish usually found in the Brazilian coasts, being considered a keystone-species for structuring benthic communities on reef habitats in the Atlantic Ocean. This study examined the morphology (shape indices and elliptic Fourier descriptors) and chemistry (Element:Ca) of A. saxatilis sagittal otoliths, collected in seven locations along the coast of South Brazil. Otolith morphology and chemistry were compared at short (range 0.5–2 km) and large (range 70–140 km) spatial scales using univariate and multivariate statistical approaches. Reclassification accuracy rates obtained from linear discrimination function analyses using both morphology and chemistry of otoliths were 61% and 82% for short and large spatial scales, respectively. No clear separation for individuals collected in islands within the Tamboretes Archipelago were observed suggesting that water masses are relatively homogeneous and/or that individuals could be highly mixed over short spatial scales. However, the higher reclassification success of the individuals belonging to Bom Abrigo, Galheta and Paz islands, indicates a limited movement of adults between habitats, a larval retention mechanism or a self-recruitment process occurring at large spatial scales. |
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Otoliths as a tool to study reef fish population structure from coastal islands of South BrazilAbudefduf saxatilisAudrey Geffenlife historysagittaeshape and chemical analysesTo promote marine conservation and sustainable resources use it is highly important to understand reef fish population structure and dynamics. The sergeant major, Abudefduf saxatilis, is a common and abundant fish usually found in the Brazilian coasts, being considered a keystone-species for structuring benthic communities on reef habitats in the Atlantic Ocean. This study examined the morphology (shape indices and elliptic Fourier descriptors) and chemistry (Element:Ca) of A. saxatilis sagittal otoliths, collected in seven locations along the coast of South Brazil. Otolith morphology and chemistry were compared at short (range 0.5–2 km) and large (range 70–140 km) spatial scales using univariate and multivariate statistical approaches. Reclassification accuracy rates obtained from linear discrimination function analyses using both morphology and chemistry of otoliths were 61% and 82% for short and large spatial scales, respectively. No clear separation for individuals collected in islands within the Tamboretes Archipelago were observed suggesting that water masses are relatively homogeneous and/or that individuals could be highly mixed over short spatial scales. However, the higher reclassification success of the individuals belonging to Bom Abrigo, Galheta and Paz islands, indicates a limited movement of adults between habitats, a larval retention mechanism or a self-recruitment process occurring at large spatial scales.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Programa de Pós-Graduação em Zoologia Universidade Federal do Paraná PGZOO/UFPRLaboratório de Ecologia de Peixes Centro de Estudos do Mar CEM/UFPRCIIMAR - Centro Interdisciplinar de Investigação Marinha e AmbientalUniversidade Estadual Paulista UNESP Câmpus de RegistroPrograma de Pós-Graduação em Sistemas Costeiros e Oceânicos Universidade Federal do Paraná PGSISCO/UFPRFaculdade de Ciências da Saúde da Universidade Fernando Pessoa UFP-FCSUniversidade Estadual Paulista UNESP Câmpus de RegistroCAPES: CAPES–1669551CNPq: CNPq/PVE–314444/2014-9Universidade Federal do Paraná (UFPR)CIIMAR - Centro Interdisciplinar de Investigação Marinha e AmbientalUniversidade Estadual Paulista (Unesp)UFP-FCSAdelir-Alves, JohnatasDaros, Felippe A. L. M. [UNESP]Spach, Henry L.Soeth, MarceloCorreia, Alberto T.2019-10-06T16:16:49Z2019-10-06T16:16:49Z2018-11-26info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article973-988http://dx.doi.org/10.1080/17451000.2019.1572194Marine Biology Research, v. 14, n. 9-10, p. 973-988, 2018.1745-10191745-1000http://hdl.handle.net/11449/18871010.1080/17451000.2019.15721942-s2.0-8506128976347404623982273360000-0003-4848-5169Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMarine Biology Researchinfo:eu-repo/semantics/openAccess2024-05-03T13:20:08Zoai:repositorio.unesp.br:11449/188710Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-03T13:20:08Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
title |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
spellingShingle |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil Adelir-Alves, Johnatas Abudefduf saxatilis Audrey Geffen life history sagittae shape and chemical analyses |
title_short |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
title_full |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
title_fullStr |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
title_full_unstemmed |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
title_sort |
Otoliths as a tool to study reef fish population structure from coastal islands of South Brazil |
author |
Adelir-Alves, Johnatas |
author_facet |
Adelir-Alves, Johnatas Daros, Felippe A. L. M. [UNESP] Spach, Henry L. Soeth, Marcelo Correia, Alberto T. |
author_role |
author |
author2 |
Daros, Felippe A. L. M. [UNESP] Spach, Henry L. Soeth, Marcelo Correia, Alberto T. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Paraná (UFPR) CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental Universidade Estadual Paulista (Unesp) UFP-FCS |
dc.contributor.author.fl_str_mv |
Adelir-Alves, Johnatas Daros, Felippe A. L. M. [UNESP] Spach, Henry L. Soeth, Marcelo Correia, Alberto T. |
dc.subject.por.fl_str_mv |
Abudefduf saxatilis Audrey Geffen life history sagittae shape and chemical analyses |
topic |
Abudefduf saxatilis Audrey Geffen life history sagittae shape and chemical analyses |
description |
To promote marine conservation and sustainable resources use it is highly important to understand reef fish population structure and dynamics. The sergeant major, Abudefduf saxatilis, is a common and abundant fish usually found in the Brazilian coasts, being considered a keystone-species for structuring benthic communities on reef habitats in the Atlantic Ocean. This study examined the morphology (shape indices and elliptic Fourier descriptors) and chemistry (Element:Ca) of A. saxatilis sagittal otoliths, collected in seven locations along the coast of South Brazil. Otolith morphology and chemistry were compared at short (range 0.5–2 km) and large (range 70–140 km) spatial scales using univariate and multivariate statistical approaches. Reclassification accuracy rates obtained from linear discrimination function analyses using both morphology and chemistry of otoliths were 61% and 82% for short and large spatial scales, respectively. No clear separation for individuals collected in islands within the Tamboretes Archipelago were observed suggesting that water masses are relatively homogeneous and/or that individuals could be highly mixed over short spatial scales. However, the higher reclassification success of the individuals belonging to Bom Abrigo, Galheta and Paz islands, indicates a limited movement of adults between habitats, a larval retention mechanism or a self-recruitment process occurring at large spatial scales. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-26 2019-10-06T16:16:49Z 2019-10-06T16:16:49Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/17451000.2019.1572194 Marine Biology Research, v. 14, n. 9-10, p. 973-988, 2018. 1745-1019 1745-1000 http://hdl.handle.net/11449/188710 10.1080/17451000.2019.1572194 2-s2.0-85061289763 4740462398227336 0000-0003-4848-5169 |
url |
http://dx.doi.org/10.1080/17451000.2019.1572194 http://hdl.handle.net/11449/188710 |
identifier_str_mv |
Marine Biology Research, v. 14, n. 9-10, p. 973-988, 2018. 1745-1019 1745-1000 10.1080/17451000.2019.1572194 2-s2.0-85061289763 4740462398227336 0000-0003-4848-5169 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Marine Biology Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
973-988 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1803046327281516544 |