Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263

Detalhes bibliográficos
Autor(a) principal: Rossi, Robson Marcelo
Data de Publicação: 2007
Outros Autores: Guedes, Terezinha Aparecida, Janeiro, Vanderly, Martins, Elias Nunes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum. Animal Sciences (Online)
Texto Completo: https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/263
Resumo: The factor of fish condition expresses the weight-lengthrelationship and it is accepted as an indicator for the evaluation of the animal "well-being";as larger the weight, best should be your survival condition. This work aims to fit a Gammamodel, from the exponential family with power link function, to data of lengthmeasurements and weight of fish from the Trachydoras paraguayensis species, observed in thebasin of the Paraná River, Paraná-Brazil. The estimates of the parameters of the model wereobtained by two different processes: by a classic method (maximum likelihood) and byBayesian method (MCMC). It was observed that the Bayesians estimates (posterior mean)of the parameters of interest were similar to the classic estimates, the dispersion parameter,it underestimated the classic estimate, however the dispersion parameter is inferior to theobtained by the classic estimate, besides supplying a standard mistake 30% smaller.
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spelling Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263Estimação do fator de condição de peixes da espécie Tracydoras paraguayensis: uma perspectiva bayesiana - DOI: 10.4025/actascianimsci.v29i1.263fator de condiçãoinferência Bayesianamodelos lineares generalizadosTrachydoras paraguayensis5.04.05.00-4 Produção AnimalThe factor of fish condition expresses the weight-lengthrelationship and it is accepted as an indicator for the evaluation of the animal "well-being";as larger the weight, best should be your survival condition. This work aims to fit a Gammamodel, from the exponential family with power link function, to data of lengthmeasurements and weight of fish from the Trachydoras paraguayensis species, observed in thebasin of the Paraná River, Paraná-Brazil. The estimates of the parameters of the model wereobtained by two different processes: by a classic method (maximum likelihood) and byBayesian method (MCMC). It was observed that the Bayesians estimates (posterior mean)of the parameters of interest were similar to the classic estimates, the dispersion parameter,it underestimated the classic estimate, however the dispersion parameter is inferior to theobtained by the classic estimate, besides supplying a standard mistake 30% smaller.O fator de condição de peixes, expressa a relação peso-comprimento e é aceitacomo um indicador da avaliação do “bem-estar” do animal; quanto maior o peso, melhor deveser sua condição de sobrevivência. Este trabalho objetivou ajustar um modelo Gama, da família exponencial com função de ligação potência, a dados de medidas de comprimento e peso depeixes da espécie Trachydoras paraguayensis, observados na bacia do Rio Paraná, Paraná-Brasil. Asestimativas dos parâmetros do modelo foram obtidos por dois processos distintos: pelométodo clássico da máxima verossimilhança e pelo método Bayesiano (MCMC). Observou-seque todas as estimativas Bayesianas (médias à posteriori) para os parâmetros de locação foramsimilares as estimativas clássicas, contudo o parâmetro de dispersão é inferior ao obtido pela aestimativa clássica, além de fornecer um erro padrão 30% menor.Editora da Universidade Estadual de Maringá2007-11-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/26310.4025/actascianimsci.v29i1.263Acta Scientiarum. Animal Sciences; Vol 29 No 1 (2007); 85-92Acta Scientiarum. Animal Sciences; v. 29 n. 1 (2007); 85-921807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/263/163Rossi, Robson MarceloGuedes, Terezinha AparecidaJaneiro, VanderlyMartins, Elias Nunesinfo:eu-repo/semantics/openAccess2024-05-17T13:03:07Zoai:periodicos.uem.br/ojs:article/263Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2024-05-17T13:03:07Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
Estimação do fator de condição de peixes da espécie Tracydoras paraguayensis: uma perspectiva bayesiana - DOI: 10.4025/actascianimsci.v29i1.263
title Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
spellingShingle Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
Rossi, Robson Marcelo
fator de condição
inferência Bayesiana
modelos lineares generalizados
Trachydoras paraguayensis
5.04.05.00-4 Produção Animal
title_short Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
title_full Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
title_fullStr Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
title_full_unstemmed Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
title_sort Estimate of the condition factor of fish of the Tracydoras paraguayensis species: a Bayesian perspective - DOI: 10.4025/actascianimsci.v29i1.263
author Rossi, Robson Marcelo
author_facet Rossi, Robson Marcelo
Guedes, Terezinha Aparecida
Janeiro, Vanderly
Martins, Elias Nunes
author_role author
author2 Guedes, Terezinha Aparecida
Janeiro, Vanderly
Martins, Elias Nunes
author2_role author
author
author
dc.contributor.author.fl_str_mv Rossi, Robson Marcelo
Guedes, Terezinha Aparecida
Janeiro, Vanderly
Martins, Elias Nunes
dc.subject.por.fl_str_mv fator de condição
inferência Bayesiana
modelos lineares generalizados
Trachydoras paraguayensis
5.04.05.00-4 Produção Animal
topic fator de condição
inferência Bayesiana
modelos lineares generalizados
Trachydoras paraguayensis
5.04.05.00-4 Produção Animal
description The factor of fish condition expresses the weight-lengthrelationship and it is accepted as an indicator for the evaluation of the animal "well-being";as larger the weight, best should be your survival condition. This work aims to fit a Gammamodel, from the exponential family with power link function, to data of lengthmeasurements and weight of fish from the Trachydoras paraguayensis species, observed in thebasin of the Paraná River, Paraná-Brazil. The estimates of the parameters of the model wereobtained by two different processes: by a classic method (maximum likelihood) and byBayesian method (MCMC). It was observed that the Bayesians estimates (posterior mean)of the parameters of interest were similar to the classic estimates, the dispersion parameter,it underestimated the classic estimate, however the dispersion parameter is inferior to theobtained by the classic estimate, besides supplying a standard mistake 30% smaller.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/263
10.4025/actascianimsci.v29i1.263
url https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/263
identifier_str_mv 10.4025/actascianimsci.v29i1.263
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/263/163
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
publisher.none.fl_str_mv Editora da Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Animal Sciences; Vol 29 No 1 (2007); 85-92
Acta Scientiarum. Animal Sciences; v. 29 n. 1 (2007); 85-92
1807-8672
1806-2636
reponame:Acta Scientiarum. Animal Sciences (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum. Animal Sciences (Online)
collection Acta Scientiarum. Animal Sciences (Online)
repository.name.fl_str_mv Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com
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