Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907

Detalhes bibliográficos
Autor(a) principal: Morales, Bruno Ferezim
Data de Publicação: 2009
Outros Autores: Cionek, Vivian de Mello, Benedito, Evanilde
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/3907
Resumo: The aim of this study was to assess of composition and structure of ichthyofauna over two distinct periods: three and eleven years after the establishment of the protected area. The results of composition and structure of the ichthyofauna of the Diamante River, sampled quarterly from November 2005 to August 2006, were compared to results obtained by Abilhoa and Bastos (2005) in studies conducted between August 1997 and December 1998. The 2.4 to 16 cm-mesh gillnets were exposed for 24 hours and checked every 8 hours. In order to characterize the ichthyofauna, patterns of species richness, diversity, evenness and frequency of occurrence of species were analyzed. A total of 673 individuals, distributed among 36 species, 13 families and four orders were sampled. Significant changes were found in ichthyofauna composition, with a reduction in diversity and evenness as compared to the previous study. The high representativeness of alien species indicates instability in the studied area, through changes in diversity, species replacement, predominance of opportunistic species, and physical changes such as silting and degradation of the body of water.
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spelling Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907Ictiofauna do ribeirão Diamante, Estação Ecológica do Caiuá (Diamante do Norte, Estado do Paraná): monitoramento de sua composição e estrutura - DOI: 10.4025/actascibiolsci.v31i2.3907conservationfishspecies introductionenvironmental damageconservaçãopeixesintrodução de espéciesimpactos ambientaisCiências BiológicasThe aim of this study was to assess of composition and structure of ichthyofauna over two distinct periods: three and eleven years after the establishment of the protected area. The results of composition and structure of the ichthyofauna of the Diamante River, sampled quarterly from November 2005 to August 2006, were compared to results obtained by Abilhoa and Bastos (2005) in studies conducted between August 1997 and December 1998. The 2.4 to 16 cm-mesh gillnets were exposed for 24 hours and checked every 8 hours. In order to characterize the ichthyofauna, patterns of species richness, diversity, evenness and frequency of occurrence of species were analyzed. A total of 673 individuals, distributed among 36 species, 13 families and four orders were sampled. Significant changes were found in ichthyofauna composition, with a reduction in diversity and evenness as compared to the previous study. The high representativeness of alien species indicates instability in the studied area, through changes in diversity, species replacement, predominance of opportunistic species, and physical changes such as silting and degradation of the body of water.O objetivo do presente trabalho foi investigar as assembleias de peixes do ribeirão Diamante (Estação Ecológica do Caiuá), visando avaliar sua composição e estrutura, ao longo de dois períodos distintos: três e 11 anos após sua criação. Para tanto, foram comparados os resultados obtidos nas amostragens realizadas trimestralmente no presente estudo, entre novembro de 2005 e agosto de 2006, com os resultados apresentados por Abilhoa e Bastos (2005) para o período de agosto de 1997 a dezembro de 1998. Neste estudo, os aparelhos de pesca foram constituídos de redes de espera simples com malhas de 2,4 a 16 cm (entre nós opostos), expostas por 24h, com revistas a cada 8h. Para a caracterização da ictiofauna, foram analisados padrões de riqueza específica, diversidade, equitabilidade e frequência de ocorrência das espécies. Foram capturados 673 indivíduos, distribuídos em 36 espécies, 13 famílias e quatro ordens. Verificou-se significativa alteração na composição da ictiofauna do ribeirão, com redução na diversidade e equitabilidade em relação ao trabalho anterior. Observou-se alta representatividade de espécies exóticas, o que indica instabilidade na área de estudo pelas alterações na diversidade, substituição de espécies, predomínio de oportunistas e alterações físicas como assoreamento e degradação do corpo de água.Universidade Estadual De Maringá2009-05-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiondiversidadeapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/390710.4025/actascibiolsci.v31i2.3907Acta Scientiarum. Biological Sciences; Vol 31 No 2 (2009); 143-148Acta Scientiarum. Biological Sciences; v. 31 n. 2 (2009); 143-1481807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3907/3907Morales, Bruno FerezimCionek, Vivian de MelloBenedito, Evanildeinfo:eu-repo/semantics/openAccess2022-11-23T17:33:38Zoai:periodicos.uem.br/ojs:article/3907Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:38Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
Ictiofauna do ribeirão Diamante, Estação Ecológica do Caiuá (Diamante do Norte, Estado do Paraná): monitoramento de sua composição e estrutura - DOI: 10.4025/actascibiolsci.v31i2.3907
title Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
spellingShingle Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
Morales, Bruno Ferezim
conservation
fish
species introduction
environmental damage
conservação
peixes
introdução de espécies
impactos ambientais
Ciências Biológicas
title_short Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
title_full Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
title_fullStr Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
title_full_unstemmed Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
title_sort Ichthyofauna of the Diamante stream, Caiuá Ecological Station (Diamante do Norte, Paraná State): monitoring its composition and structure - DOI: 10.4025/actascibiolsci.v31i2.3907
author Morales, Bruno Ferezim
author_facet Morales, Bruno Ferezim
Cionek, Vivian de Mello
Benedito, Evanilde
author_role author
author2 Cionek, Vivian de Mello
Benedito, Evanilde
author2_role author
author
dc.contributor.author.fl_str_mv Morales, Bruno Ferezim
Cionek, Vivian de Mello
Benedito, Evanilde
dc.subject.por.fl_str_mv conservation
fish
species introduction
environmental damage
conservação
peixes
introdução de espécies
impactos ambientais
Ciências Biológicas
topic conservation
fish
species introduction
environmental damage
conservação
peixes
introdução de espécies
impactos ambientais
Ciências Biológicas
description The aim of this study was to assess of composition and structure of ichthyofauna over two distinct periods: three and eleven years after the establishment of the protected area. The results of composition and structure of the ichthyofauna of the Diamante River, sampled quarterly from November 2005 to August 2006, were compared to results obtained by Abilhoa and Bastos (2005) in studies conducted between August 1997 and December 1998. The 2.4 to 16 cm-mesh gillnets were exposed for 24 hours and checked every 8 hours. In order to characterize the ichthyofauna, patterns of species richness, diversity, evenness and frequency of occurrence of species were analyzed. A total of 673 individuals, distributed among 36 species, 13 families and four orders were sampled. Significant changes were found in ichthyofauna composition, with a reduction in diversity and evenness as compared to the previous study. The high representativeness of alien species indicates instability in the studied area, through changes in diversity, species replacement, predominance of opportunistic species, and physical changes such as silting and degradation of the body of water.
publishDate 2009
dc.date.none.fl_str_mv 2009-05-14
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
diversidade
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3907
10.4025/actascibiolsci.v31i2.3907
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3907
identifier_str_mv 10.4025/actascibiolsci.v31i2.3907
dc.language.iso.fl_str_mv por
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dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/3907/3907
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 31 No 2 (2009); 143-148
Acta Scientiarum. Biological Sciences; v. 31 n. 2 (2009); 143-148
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
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instname_str Universidade Estadual de Maringá (UEM)
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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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