The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270

Detalhes bibliográficos
Autor(a) principal: Dias, Ana Carolina Monteiro Iozzi
Data de Publicação: 2008
Outros Autores: Castelo Branco, Christina Wyss, Lopes, Vanessa Guimarães
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/1270
Resumo: The aim of this study was to know the natural diet of species from Ribeirão das Lajes reservoir, from the stomach content analysis of fishes captured in two different seasons by using gillnets. Characterizing the natural diet, the methods of frequency of occurrence and abundance percentage of items from the diet were applied. Eleven species were registered, representing approximately 62% of the listed species for that reservoir, being Trachelyopterus striatulus and Metynnis maculates the most abundant. These two species, as well as Geophagus brasiliensis and Tilapia rendalli showed an omnivorous microphageous habit and also showed a great diversity in choosing food items, due to the consumption of items from the water column and also from the forest-water ecotone. Astyanax bimaculatus also presented an omnivorous habit, although with a tendency to insectivore while Oligosarcus hepsetus and Cichla monoculus showed a piscivorous habit
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spelling The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270Estudo da dieta natural de peixes no reservatório de Ribeirão das Lajes, Rio de Janeiro, Brasil - DOI: 10.4025/actascibiolsci.v27i4.1270ictiofaunapredaçãoreservatóriointerações tróficasRio de Janeiro2.05.00.00-9 EcologiaThe aim of this study was to know the natural diet of species from Ribeirão das Lajes reservoir, from the stomach content analysis of fishes captured in two different seasons by using gillnets. Characterizing the natural diet, the methods of frequency of occurrence and abundance percentage of items from the diet were applied. Eleven species were registered, representing approximately 62% of the listed species for that reservoir, being Trachelyopterus striatulus and Metynnis maculates the most abundant. These two species, as well as Geophagus brasiliensis and Tilapia rendalli showed an omnivorous microphageous habit and also showed a great diversity in choosing food items, due to the consumption of items from the water column and also from the forest-water ecotone. Astyanax bimaculatus also presented an omnivorous habit, although with a tendency to insectivore while Oligosarcus hepsetus and Cichla monoculus showed a piscivorous habitO presente estudo objetivou conhecer a dieta natural de espécies residentes no reservatório de Ribeirão das Lajes (RJ), sendo realizada a análise do conteúdo estomacal de peixes capturados por meio de redes de espera, em duas épocas distintas. Na caracterização da dieta alimentar, foram calculados a freqüência de ocorrência de itens e o percentual de abundância de cada item na dieta. Foram registradas 11 espécies, representando cerca de 62% delas inventariadas para o reservatório, sendo as espécies encontradas com maior abundância Trachelyopterus striatulus e Metynnis maculatus. Essas duas espécies, bem como Geophagus brasiliensis e Tilapia rendalli, apresentaram hábito onívoro micrófago, sendo observada uma plasticidade alimentar principalmente devido à utilização de itens alimentares tanto originários da coluna d’água como do ecótono água-floresta. Astyanax bimaculatus apresentou hábito também onívoro, mas com tendência à insetivoria, enquanto Oligosarcus hepsetus e Cichla monoculus mostraram um hábito alimentar piscívoroUniversidade Estadual De Maringá2008-03-24info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/127010.4025/actascibiolsci.v27i4.1270Acta Scientiarum. Biological Sciences; Vol 27 No 4 (2005); 355-364Acta Scientiarum. Biological Sciences; v. 27 n. 4 (2005); 355-3641807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1270/730Dias, Ana Carolina Monteiro IozziCastelo Branco, Christina WyssLopes, Vanessa Guimarãesinfo:eu-repo/semantics/openAccess2022-11-23T17:33:05Zoai:periodicos.uem.br/ojs:article/1270Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:05Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
Estudo da dieta natural de peixes no reservatório de Ribeirão das Lajes, Rio de Janeiro, Brasil - DOI: 10.4025/actascibiolsci.v27i4.1270
title The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
spellingShingle The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
Dias, Ana Carolina Monteiro Iozzi
ictiofauna
predação
reservatório
interações tróficas
Rio de Janeiro
2.05.00.00-9 Ecologia
title_short The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
title_full The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
title_fullStr The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
title_full_unstemmed The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
title_sort The study of fish natural diet from Ribeirão das Lajes reservoir, Rio de Janeiro State, Brazil - DOI: 10.4025/actascibiolsci.v27i4.1270
author Dias, Ana Carolina Monteiro Iozzi
author_facet Dias, Ana Carolina Monteiro Iozzi
Castelo Branco, Christina Wyss
Lopes, Vanessa Guimarães
author_role author
author2 Castelo Branco, Christina Wyss
Lopes, Vanessa Guimarães
author2_role author
author
dc.contributor.author.fl_str_mv Dias, Ana Carolina Monteiro Iozzi
Castelo Branco, Christina Wyss
Lopes, Vanessa Guimarães
dc.subject.por.fl_str_mv ictiofauna
predação
reservatório
interações tróficas
Rio de Janeiro
2.05.00.00-9 Ecologia
topic ictiofauna
predação
reservatório
interações tróficas
Rio de Janeiro
2.05.00.00-9 Ecologia
description The aim of this study was to know the natural diet of species from Ribeirão das Lajes reservoir, from the stomach content analysis of fishes captured in two different seasons by using gillnets. Characterizing the natural diet, the methods of frequency of occurrence and abundance percentage of items from the diet were applied. Eleven species were registered, representing approximately 62% of the listed species for that reservoir, being Trachelyopterus striatulus and Metynnis maculates the most abundant. These two species, as well as Geophagus brasiliensis and Tilapia rendalli showed an omnivorous microphageous habit and also showed a great diversity in choosing food items, due to the consumption of items from the water column and also from the forest-water ecotone. Astyanax bimaculatus also presented an omnivorous habit, although with a tendency to insectivore while Oligosarcus hepsetus and Cichla monoculus showed a piscivorous habit
publishDate 2008
dc.date.none.fl_str_mv 2008-03-24
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/1270
10.4025/actascibiolsci.v27i4.1270
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1270
identifier_str_mv 10.4025/actascibiolsci.v27i4.1270
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/1270/730
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 27 No 4 (2005); 355-364
Acta Scientiarum. Biological Sciences; v. 27 n. 4 (2005); 355-364
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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