Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
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/2735 |
Resumo: | The study of the feeding of Astyanax bimaculatus was undertaken from March 1996 to February 1997. Collections were made monthly in the influence area of the Corumbá Reservoir, in three environments: Corumbá, Córregos and Rio do Peixe. Gill and drag nets were used for collections. Occurrence and volumetric methods were used to determine diet which was composed of twenty-seven items. Feeding index for total fish analyzed (n = 401) indicated that 62.85% of the diet was composed of vegetal matter and 37.13% of animal matter. Main items were Dicotiledoneae (IAi = 58.70%) among vegetation and insects (IAi = 34.65%) among animals. Seasonal, area and fish size variations influenced diet variation and suggest the opportunistic habit of the species |
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Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, BrazilDieta de Astyanax bimaculatus (Linnaeus, 1758) (Characiformes, Characidae), da área de influência do reservatório de Corumbá, Estado de Goiás, Brasilalimentação de peixesAstyanax bimaculatusreservatório2.00.00.00-6 Ciências BiológicasThe study of the feeding of Astyanax bimaculatus was undertaken from March 1996 to February 1997. Collections were made monthly in the influence area of the Corumbá Reservoir, in three environments: Corumbá, Córregos and Rio do Peixe. Gill and drag nets were used for collections. Occurrence and volumetric methods were used to determine diet which was composed of twenty-seven items. Feeding index for total fish analyzed (n = 401) indicated that 62.85% of the diet was composed of vegetal matter and 37.13% of animal matter. Main items were Dicotiledoneae (IAi = 58.70%) among vegetation and insects (IAi = 34.65%) among animals. Seasonal, area and fish size variations influenced diet variation and suggest the opportunistic habit of the speciesCom o objetivo de estudar a alimentação de Astyanax bimaculatus realizaram-se-se, no período de março de 1996 a fevereiro de 1997, amostragens mensais na área de influência do reservatório de Corumbá, agrupadas neste trabalho em três biótopos: Corumbá, Córregos e Rio do Peixe. Foram utilizadas redes de espera e de arrasto. Foram aplicados os métodos de ocorrência e volumétrico e o índice alimentar para analisar a dieta, que foi composta de vinte e sete itens. O índice alimentar, para o total de indivíduos analisados (n=401), indicou que 62,85% da dieta foram compostos de matéria vegetal e 37,13%, de matéria animal. Dentre os vegetais, destacou-se Dicotiledoneae (IAi=58,70%) e dentre os animais, os insetos (IAi=34,65%). Foram constatadas variações na dieta, relacionadas com o tamanho dos indivíduos, sazonalidade e espacialidade, resultados que sugerem ser a espécie oportunista, de hábito alimentar onívoro, com tendência à hervioria-insetivoriaUniversidade Estadual De Maringá2008-05-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/273510.4025/actascibiolsci.v23i0.2735Acta Scientiarum. Biological Sciences; Vol 23 (2001); 435-440Acta Scientiarum. Biological Sciences; v. 23 (2001); 435-4401807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2735/2015Andrian, Izabel de FatimaSilva, Heloisa Baleroni RodriguesPeretti, Danielleinfo:eu-repo/semantics/openAccess2022-11-23T17:33:29Zoai:periodicos.uem.br/ojs:article/2735Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:29Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil Dieta de Astyanax bimaculatus (Linnaeus, 1758) (Characiformes, Characidae), da área de influência do reservatório de Corumbá, Estado de Goiás, Brasil |
title |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil |
spellingShingle |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil Andrian, Izabel de Fatima alimentação de peixes Astyanax bimaculatus reservatório 2.00.00.00-6 Ciências Biológicas |
title_short |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil |
title_full |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil |
title_fullStr |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil |
title_full_unstemmed |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil |
title_sort |
Feeding of Astyanax bimaculatus (Characiformes, Characidae), in the influence area of the Corumbá Reservoir, state of Goiás, Brazil |
author |
Andrian, Izabel de Fatima |
author_facet |
Andrian, Izabel de Fatima Silva, Heloisa Baleroni Rodrigues Peretti, Danielle |
author_role |
author |
author2 |
Silva, Heloisa Baleroni Rodrigues Peretti, Danielle |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Andrian, Izabel de Fatima Silva, Heloisa Baleroni Rodrigues Peretti, Danielle |
dc.subject.por.fl_str_mv |
alimentação de peixes Astyanax bimaculatus reservatório 2.00.00.00-6 Ciências Biológicas |
topic |
alimentação de peixes Astyanax bimaculatus reservatório 2.00.00.00-6 Ciências Biológicas |
description |
The study of the feeding of Astyanax bimaculatus was undertaken from March 1996 to February 1997. Collections were made monthly in the influence area of the Corumbá Reservoir, in three environments: Corumbá, Córregos and Rio do Peixe. Gill and drag nets were used for collections. Occurrence and volumetric methods were used to determine diet which was composed of twenty-seven items. Feeding index for total fish analyzed (n = 401) indicated that 62.85% of the diet was composed of vegetal matter and 37.13% of animal matter. Main items were Dicotiledoneae (IAi = 58.70%) among vegetation and insects (IAi = 34.65%) among animals. Seasonal, area and fish size variations influenced diet variation and suggest the opportunistic habit of the species |
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/2735 10.4025/actascibiolsci.v23i0.2735 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2735 |
identifier_str_mv |
10.4025/actascibiolsci.v23i0.2735 |
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/2735/2015 |
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 23 (2001); 435-440 Acta Scientiarum. Biological Sciences; v. 23 (2001); 435-440 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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1799317390970847232 |