Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens

Detalhes bibliográficos
Autor(a) principal: Felizardo, Viviane de Oliveira
Data de Publicação: 2015
Outros Autores: Andrade, Eliane Aparecida de, Melo, Carlos Cicinato Vieira, Murgas, Luis David Solis, Freitas, Rilke Tadeu Fonseca de, Andrade, Estefânia de Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/39231
Resumo: This study determined the age and its correlation with biometric variables and reproductive indices of piapara Leporinus obtusidens caught at the Funil Reservoir. We caught 133 specimens between September 2006 and August 2007. Weight, total length, standard length, depth, height, head length and radius of the scales were measured. The sex was determined by macroscopic examination of gonads. The age of each fish was determined by analyzing the growth rings on the scales. Seasonal differences in biometric variables were tested using the NK test at 5%. The correlation of age and radius of the scales with the biometric variables and reproductive indices were analyzed using the SAEG software. Fish individuals ranging from 3 to 14 years of age were caught. In the spring and summer, smaller fish were captured compared to those caught during the fall and winter. Females tended to have higher weight and morphometric values when compared to males. Age and radius of the scales were correlated with biometric variables in L. obtusidens. It can be concluded that the biometric variables of this species can be used as an indicator of age.
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spelling Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidensDeterminação da idade e sua correlação com as variáveis biométricas e indíces reprodutivos sazonais de Leporinus obtusidensFish - GrowthFish - ReproductionBiometricsPiaparaPeixes - CrescimentoPeixes - ReproduçãoBiometriaThis study determined the age and its correlation with biometric variables and reproductive indices of piapara Leporinus obtusidens caught at the Funil Reservoir. We caught 133 specimens between September 2006 and August 2007. Weight, total length, standard length, depth, height, head length and radius of the scales were measured. The sex was determined by macroscopic examination of gonads. The age of each fish was determined by analyzing the growth rings on the scales. Seasonal differences in biometric variables were tested using the NK test at 5%. The correlation of age and radius of the scales with the biometric variables and reproductive indices were analyzed using the SAEG software. Fish individuals ranging from 3 to 14 years of age were caught. In the spring and summer, smaller fish were captured compared to those caught during the fall and winter. Females tended to have higher weight and morphometric values when compared to males. Age and radius of the scales were correlated with biometric variables in L. obtusidens. It can be concluded that the biometric variables of this species can be used as an indicator of age.O trabalho determinou a idade e sua correlação com as variáveis biométricas e os índices reprodutivos de L. obtusidens capturados na usina hidrelétrica do Funil. Foram capturados 133 espécimes entre setembro de 2006 e agosto de 2007. Foram medidos o peso, o comprimento total e padrão, a altura, a espessura, o comprimento da cabeça e raio da escama. O sexo foi determinado por exame macroscópico das gônadas. A idade de cada peixe foi determinada pela análise das linhas de crescimento da escama. As diferenças sazonais dos parâmetros biométricos foram determinadas usando o teste de NK a 5%. Foi verificada a correlação da idade e o raio da escama com as variáveis biométricas e índices reprodutivos por meio da correlação de Pearson, usando o programa SAEG. As piaparas capturadas tinham idade que variaram de três a 14 anos de idade. Nas estações de primavera e verão foram capturados peixes menores em relação aos capturados durante o inverno e outono. As fêmeas tendem a ter maior peso e valores morfométricos quando comparados com os machos. A idade e o raio da escama estão correlacionados com as variáveis biométricas de L. obtusidens. Concluindo que as variáveis biométricas desta espécie podem ser usadas como um indicador da idade.Universidade Estadual de Maringá2020-03-06T19:08:17Z2020-03-06T19:08:17Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfFELIZARDO, V. de O. et al. Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens. Acta Scientiarum, Maringá, v. 37, n. 3, p. 265-271, jul./set. 2015.http://repositorio.ufla.br/jspui/handle/1/39231Acta Scientiarumreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessFelizardo, Viviane de OliveiraAndrade, Eliane Aparecida deMelo, Carlos Cicinato VieiraMurgas, Luis David SolisFreitas, Rilke Tadeu Fonseca deAndrade, Estefânia de Souzaeng2020-03-06T19:08:57Zoai:localhost:1/39231Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-03-06T19:08:57Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
Determinação da idade e sua correlação com as variáveis biométricas e indíces reprodutivos sazonais de Leporinus obtusidens
title Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
spellingShingle Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
Felizardo, Viviane de Oliveira
Fish - Growth
Fish - Reproduction
Biometrics
Piapara
Peixes - Crescimento
Peixes - Reprodução
Biometria
title_short Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
title_full Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
title_fullStr Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
title_full_unstemmed Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
title_sort Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens
author Felizardo, Viviane de Oliveira
author_facet Felizardo, Viviane de Oliveira
Andrade, Eliane Aparecida de
Melo, Carlos Cicinato Vieira
Murgas, Luis David Solis
Freitas, Rilke Tadeu Fonseca de
Andrade, Estefânia de Souza
author_role author
author2 Andrade, Eliane Aparecida de
Melo, Carlos Cicinato Vieira
Murgas, Luis David Solis
Freitas, Rilke Tadeu Fonseca de
Andrade, Estefânia de Souza
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Felizardo, Viviane de Oliveira
Andrade, Eliane Aparecida de
Melo, Carlos Cicinato Vieira
Murgas, Luis David Solis
Freitas, Rilke Tadeu Fonseca de
Andrade, Estefânia de Souza
dc.subject.por.fl_str_mv Fish - Growth
Fish - Reproduction
Biometrics
Piapara
Peixes - Crescimento
Peixes - Reprodução
Biometria
topic Fish - Growth
Fish - Reproduction
Biometrics
Piapara
Peixes - Crescimento
Peixes - Reprodução
Biometria
description This study determined the age and its correlation with biometric variables and reproductive indices of piapara Leporinus obtusidens caught at the Funil Reservoir. We caught 133 specimens between September 2006 and August 2007. Weight, total length, standard length, depth, height, head length and radius of the scales were measured. The sex was determined by macroscopic examination of gonads. The age of each fish was determined by analyzing the growth rings on the scales. Seasonal differences in biometric variables were tested using the NK test at 5%. The correlation of age and radius of the scales with the biometric variables and reproductive indices were analyzed using the SAEG software. Fish individuals ranging from 3 to 14 years of age were caught. In the spring and summer, smaller fish were captured compared to those caught during the fall and winter. Females tended to have higher weight and morphometric values when compared to males. Age and radius of the scales were correlated with biometric variables in L. obtusidens. It can be concluded that the biometric variables of this species can be used as an indicator of age.
publishDate 2015
dc.date.none.fl_str_mv 2015
2020-03-06T19:08:17Z
2020-03-06T19:08:17Z
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 FELIZARDO, V. de O. et al. Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens. Acta Scientiarum, Maringá, v. 37, n. 3, p. 265-271, jul./set. 2015.
http://repositorio.ufla.br/jspui/handle/1/39231
identifier_str_mv FELIZARDO, V. de O. et al. Determination of age and its correlation with biometric variables and seasonal reproductive indices of Leporinus obtusidens. Acta Scientiarum, Maringá, v. 37, n. 3, p. 265-271, jul./set. 2015.
url http://repositorio.ufla.br/jspui/handle/1/39231
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Maringá
publisher.none.fl_str_mv Universidade Estadual de Maringá
dc.source.none.fl_str_mv Acta Scientiarum
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
_version_ 1815439077351096320

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