Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669

Detalhes bibliográficos
Autor(a) principal: Feitoza, Letícia Andrian
Data de Publicação: 2008
Outros Autores: Okada, Edson Kiyoshi, Ambrósio, Angela Maria
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1669
Resumo: A total of 1033 individuals of Pterodoras granulosus (512 males and 521 females) were collected in Itaipu Reservoir. Individual age was estimated through the rings found in the vertebrae. In the period studied, the highest number of rings found was 10 for both sexes. The rings are annual and formed in November, as observed in time variation analysis of marginal increment, possibly resulted from the reproductive period beginning. The growth curve, expressed through Von Bertalanffy model, using the nonlinear procedure, is: Ls=48,57[1-e-0,16(t+1,83)] for males and Ls= 65,06[1-e-0,11(t+1,87)] for females, in which the standard length is given in centimeters and the age in years
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spelling Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669Idade e crescimento de Pterodoras granulosus (Valenciennes, 1833) (Siluriformes, Doradidae) no reservatório de Itaipu, Estado do Paraná, Brasil - DOI: 10.4025/actascibiolsci.v26i1.1669crescimentoidadePterodoras granulosusreservatório de Itaipu2.01.00.00-0 Biologia GeralA total of 1033 individuals of Pterodoras granulosus (512 males and 521 females) were collected in Itaipu Reservoir. Individual age was estimated through the rings found in the vertebrae. In the period studied, the highest number of rings found was 10 for both sexes. The rings are annual and formed in November, as observed in time variation analysis of marginal increment, possibly resulted from the reproductive period beginning. The growth curve, expressed through Von Bertalanffy model, using the nonlinear procedure, is: Ls=48,57[1-e-0,16(t+1,83)] for males and Ls= 65,06[1-e-0,11(t+1,87)] for females, in which the standard length is given in centimeters and the age in yearsForam utilizados 1033 exemplares de Pterodoras granulosus (Siluriformes, Doradidae), 512 machos e 521 fêmeas coletados no reservatório de Itaipu, Estado do Paraná. A idade individual foi estimada a partir dos anéis etários encontrados nas vértebras. O número máximo de anéis encontrados nas vértebras para o período estudado foi 10 para ambos os sexos. Os anéis encontrados nas vértebras são anuais e formados em novembro, como o observado através da análise da variação temporal do incremento marginal médio, possivelmente resultado do início do período reprodutivo. A curva de crescimento expressa pelo modelo de von Bertalanffly, usando o procedimento não-linear, é Ls =48,57 [1-e-0,16(t+1,83)] para machos; e Ls = 65,06 [1-e-0,11(t+1,87)] para fêmeas, na qual o comprimento padrão é dado em centímetro e a idade em anosUniversidade Estadual De Maringá2008-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/166910.4025/actascibiolsci.v26i1.1669Acta Scientiarum. Biological Sciences; Vol 26 No 1 (2004); 47-53Acta Scientiarum. Biological Sciences; v. 26 n. 1 (2004); 47-531807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1669/999Feitoza, Letícia AndrianOkada, Edson KiyoshiAmbrósio, Angela Mariainfo:eu-repo/semantics/openAccess2022-11-23T17:33:16Zoai:periodicos.uem.br/ojs:article/1669Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:16Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
Idade e crescimento de Pterodoras granulosus (Valenciennes, 1833) (Siluriformes, Doradidae) no reservatório de Itaipu, Estado do Paraná, Brasil - DOI: 10.4025/actascibiolsci.v26i1.1669
title Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
spellingShingle Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
Feitoza, Letícia Andrian
crescimento
idade
Pterodoras granulosus
reservatório de Itaipu
2.01.00.00-0 Biologia Geral
title_short Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
title_full Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
title_fullStr Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
title_full_unstemmed Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
title_sort Age and growth of Pterodoras granulosus (Valenciennes, 1833), (Siluriformes, Doradidae) in Itaipu reservoir, state of Paraná, Brazil - DOI: 10.4025/actascibiolsci.v26i1.1669
author Feitoza, Letícia Andrian
author_facet Feitoza, Letícia Andrian
Okada, Edson Kiyoshi
Ambrósio, Angela Maria
author_role author
author2 Okada, Edson Kiyoshi
Ambrósio, Angela Maria
author2_role author
author
dc.contributor.author.fl_str_mv Feitoza, Letícia Andrian
Okada, Edson Kiyoshi
Ambrósio, Angela Maria
dc.subject.por.fl_str_mv crescimento
idade
Pterodoras granulosus
reservatório de Itaipu
2.01.00.00-0 Biologia Geral
topic crescimento
idade
Pterodoras granulosus
reservatório de Itaipu
2.01.00.00-0 Biologia Geral
description A total of 1033 individuals of Pterodoras granulosus (512 males and 521 females) were collected in Itaipu Reservoir. Individual age was estimated through the rings found in the vertebrae. In the period studied, the highest number of rings found was 10 for both sexes. The rings are annual and formed in November, as observed in time variation analysis of marginal increment, possibly resulted from the reproductive period beginning. The growth curve, expressed through Von Bertalanffy model, using the nonlinear procedure, is: Ls=48,57[1-e-0,16(t+1,83)] for males and Ls= 65,06[1-e-0,11(t+1,87)] for females, in which the standard length is given in centimeters and the age in years
publishDate 2008
dc.date.none.fl_str_mv 2008-04-01
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1669
10.4025/actascibiolsci.v26i1.1669
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1669
identifier_str_mv 10.4025/actascibiolsci.v26i1.1669
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1669/999
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 Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 26 No 1 (2004); 47-53
Acta Scientiarum. Biological Sciences; v. 26 n. 1 (2004); 47-53
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actabiol@uem.br
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