Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte

Detalhes bibliográficos
Autor(a) principal: Nascimento, Renata Swany Soares
Data de Publicação: 2008
Outros Autores: Gurgel, Helio de Castro Bezerra
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
DOI: 10.4025/actascibiolsci.v22i0.2923
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2923
Resumo: With the aim of clarifying aspects of the populational structure of Poecilia vivipara in the Ceará-Mirim river, State of Rio Grande do Norte, a total of 3,390 specimens were captured in monthly collections June 1995 trough May 1997, using nets and sieves. Results showed that females, prevailed in the proportion of 8:1, in the whole period as well as seasonaly. The total length classes distribution for separate sexes indicated that females reaches greatest lengths than males with no difference between dry and rainy seasons. The species growth is of the alometric positive type as suggested by the &Teta; value (3,86). No correlation between abiotic factors (photoperiod duration, rainfall, temperature and river water level) and the population structure was found
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spelling Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do NorteEstrutura populacional de Poecilia vivípara Bloch & Schneider, 1801 (Atheriniformes, Poeciliidae) do rio Ceará-Mirim - Rio Grande do NortePoecilia vivíparaestrutura populacionalsazonalidadepeixes2.00.00.00-6 Ciências BiológicasWith the aim of clarifying aspects of the populational structure of Poecilia vivipara in the Ceará-Mirim river, State of Rio Grande do Norte, a total of 3,390 specimens were captured in monthly collections June 1995 trough May 1997, using nets and sieves. Results showed that females, prevailed in the proportion of 8:1, in the whole period as well as seasonaly. The total length classes distribution for separate sexes indicated that females reaches greatest lengths than males with no difference between dry and rainy seasons. The species growth is of the alometric positive type as suggested by the &Teta; value (3,86). No correlation between abiotic factors (photoperiod duration, rainfall, temperature and river water level) and the population structure was foundCom o propósito de elucidar aspectos da estrutura populacional de Poecilia vivipara do rio Ceará-Mirim, município de Poço Branco, Rio Grande do Norte, foram capturados 3.390 exemplares em coletas mensais, no período de junho de 1995 a maio de 1997, utilizando-se tarrafas e peneiras. A partir dos resultados obtidos, constatou-se que as fêmeas, em relação aos machos, predominaram na proporção de 8:1, considerando-se as análises total e sazonal. No que se refere à distribuição por classes de comprimento para os sexos separados, observou-se uma maior amplitude de comprimento das fêmeas em relação aos machos e ainda uma ausência de diferenças entre as estações chuvosa e seca. De acordo com os valores obtidos para o &Teta; (3,86), verificou-se, para a espécie, um crescimento do tipo alométrico positivo. Quanto à influência dos fatores abióticos, fotoperíodo, pluviosidade, temperatura e nível do rio, relacionados aos aspectos da estrutura populacional, não foram verificados resultados significativos que a confirmassemUniversidade Estadual De Maringá2008-05-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/292310.4025/actascibiolsci.v22i0.2923Acta Scientiarum. Biological Sciences; Vol 22 (2000); 415-422Acta Scientiarum. Biological Sciences; v. 22 (2000); 415-4221807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2923/2109Nascimento, Renata Swany SoaresGurgel, Helio de Castro Bezerrainfo:eu-repo/semantics/openAccess2022-11-23T17:33:31Zoai:periodicos.uem.br/ojs:article/2923Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:31Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
Estrutura populacional de Poecilia vivípara Bloch & Schneider, 1801 (Atheriniformes, Poeciliidae) do rio Ceará-Mirim - Rio Grande do Norte
title Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
spellingShingle Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
Nascimento, Renata Swany Soares
Poecilia vivípara
estrutura populacional
sazonalidade
peixes
2.00.00.00-6 Ciências Biológicas
Nascimento, Renata Swany Soares
Poecilia vivípara
estrutura populacional
sazonalidade
peixes
2.00.00.00-6 Ciências Biológicas
title_short Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
title_full Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
title_fullStr Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
title_full_unstemmed Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
title_sort Populational structure of Poecilia vivipara Block & Schneider, 1801 (Atheriniformes, Poeciliidae) of Ceará-Mirim river, State of Rio Grande do Norte
author Nascimento, Renata Swany Soares
author_facet Nascimento, Renata Swany Soares
Nascimento, Renata Swany Soares
Gurgel, Helio de Castro Bezerra
Gurgel, Helio de Castro Bezerra
author_role author
author2 Gurgel, Helio de Castro Bezerra
author2_role author
dc.contributor.author.fl_str_mv Nascimento, Renata Swany Soares
Gurgel, Helio de Castro Bezerra
dc.subject.por.fl_str_mv Poecilia vivípara
estrutura populacional
sazonalidade
peixes
2.00.00.00-6 Ciências Biológicas
topic Poecilia vivípara
estrutura populacional
sazonalidade
peixes
2.00.00.00-6 Ciências Biológicas
description With the aim of clarifying aspects of the populational structure of Poecilia vivipara in the Ceará-Mirim river, State of Rio Grande do Norte, a total of 3,390 specimens were captured in monthly collections June 1995 trough May 1997, using nets and sieves. Results showed that females, prevailed in the proportion of 8:1, in the whole period as well as seasonaly. The total length classes distribution for separate sexes indicated that females reaches greatest lengths than males with no difference between dry and rainy seasons. The species growth is of the alometric positive type as suggested by the &Teta; value (3,86). No correlation between abiotic factors (photoperiod duration, rainfall, temperature and river water level) and the population structure was found
publishDate 2008
dc.date.none.fl_str_mv 2008-05-09
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/2923
10.4025/actascibiolsci.v22i0.2923
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2923
identifier_str_mv 10.4025/actascibiolsci.v22i0.2923
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/2923/2109
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 22 (2000); 415-422
Acta Scientiarum. Biological Sciences; v. 22 (2000); 415-422
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
_version_ 1822182728843395072
dc.identifier.doi.none.fl_str_mv 10.4025/actascibiolsci.v22i0.2923

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