Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1519-69842003000200006 http://hdl.handle.net/11449/130839 |
Resumo: | In the present investigation we studied the feeding habits of the fishes associated with aquatic macrophytes in the Rosana Reservoir, southeastern Brazil. Twenty fish species were collected during four field trips, regularly distributed across the dry and wet seasons. Focal snorkeling observations of the fishes were made over a total of six hours. Nine species were present in abundances of more than 1% and, therefore, had their feeding habits analyzed. Hemigrammus marginatus, Roeboides paranensis, Hyphessobrycon eques, Astyanax altiparanae, Serrasalmus spilopleura, and Bryconamericus stramineus were predominantly invertivores, with predominance of aquatic insects (Diptera, Ephemeroptera, and Trichoptera immatures) among their food items. The predominantly algivores were Apareiodon affinis, Serrapinnus notomelas, and Satanoperca pappaterra, with high frequency of filamentous blue-green algae, diatoms, clorophyts, and periderm. The different microhabitat exploitation plus diet composition suggests partitioning of resources and absence of food competition among the most representative fish species in the studied community, indicating the importance of the naturalistic approach to fish ecology studies. |
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Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern BrazilMacrófitas aquáticas como sítio de alimentação para pequenos peixes no reservatório de Rosana, rio Paranapanema, Sudeste do BrasilAquatic macrophytesFishesFeedingRosana reservoirParanapanema riverMacrófitas aquáticasPeixesAlimentaçãoReservatório de RosanaRio ParanapanemaIn the present investigation we studied the feeding habits of the fishes associated with aquatic macrophytes in the Rosana Reservoir, southeastern Brazil. Twenty fish species were collected during four field trips, regularly distributed across the dry and wet seasons. Focal snorkeling observations of the fishes were made over a total of six hours. Nine species were present in abundances of more than 1% and, therefore, had their feeding habits analyzed. Hemigrammus marginatus, Roeboides paranensis, Hyphessobrycon eques, Astyanax altiparanae, Serrasalmus spilopleura, and Bryconamericus stramineus were predominantly invertivores, with predominance of aquatic insects (Diptera, Ephemeroptera, and Trichoptera immatures) among their food items. The predominantly algivores were Apareiodon affinis, Serrapinnus notomelas, and Satanoperca pappaterra, with high frequency of filamentous blue-green algae, diatoms, clorophyts, and periderm. The different microhabitat exploitation plus diet composition suggests partitioning of resources and absence of food competition among the most representative fish species in the studied community, indicating the importance of the naturalistic approach to fish ecology studies.Neste trabalho foram estudados os hábitos alimentares dos peixes associados a bancos de macrófitas aquáticas no reservatório de Rosana, Sudeste do Brasil. Vinte espécies de peixes foram coletadas em quatro viagens, regularmente distribuídas em períodos de seca e chuva. Seis horas de observações subaquáticas pelo método animal focal foram realizadas. Nove espécies apresentaram abundâncias relativas maiores do que 1% e tiveram seus hábitos alimentares investigados. Hemigrammus marginatus, Roeboides paranensis, Hyphessobrycon eques, Astyanax altiparanae, Serrasalmus spilopleura e Bryconamericus stramineus foram predominantemente invertívoros, com predominância de insetos aquáticos (imaturos de Diptera, Ephemeroptera e Trichoptera). Os predominantemente algívoros foram Apareiodon affinis, Serrapinnus notomelas e Satanoperca pappaterra, com elevada ocorrência de algas cianofíceas filamentosas, diatomáceas, clorofíceas e periderme. A diferenciada exploração de microhabitats, em combinação com a dieta propriamente dita, sugere partilha dos recursos alimentares e ausência de competição por alimento entre as espécies mais representativas na comunidade de peixes estudada, ressaltando a importância de abordagens naturalísticas em estudos sobre ecologia de peixes.Laboratório de Ictiologia de Ribeirão Preto, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Ribeirão Preto, SP, BrasilLaboratório de Entomologia Aquática, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Ribeirão Preto, SP, BrasilLaboratório de Ictiologia, Departamento de Zoologia e Botânica, Instituto de Biociências, Letras e Ciências Exatas (IBILCE), Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP, BrasilUniversidade Estadual Paulista, Departamento de Zoologia e Botânica, Instituto de Biociências, Letras e Ciências Exatas de São José do Rio PretoUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Casatti, L. [UNESP]Mendes, H. F.Ferreira, K. M.2015-12-07T15:29:41Z2015-12-07T15:29:41Z2003info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article213-222application/pdfhttp://dx.doi.org/10.1590/S1519-69842003000200006Brazilian Journal of Biology = Revista Brasleira de Biologia, v. 63, n. 2, p. 213-222, 2003.1519-6984http://hdl.handle.net/11449/13083910.1590/S1519-69842003000200006S1519-69842003000200006S1519-69842003000200006.pdf804101145615821714509843PubMedreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal of Biology = Revista Brasleira de Biologia0.7840,523info:eu-repo/semantics/openAccess2023-12-02T06:15:40Zoai:repositorio.unesp.br:11449/130839Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-02T06:15:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil Macrófitas aquáticas como sítio de alimentação para pequenos peixes no reservatório de Rosana, rio Paranapanema, Sudeste do Brasil |
title |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil |
spellingShingle |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil Casatti, L. [UNESP] Aquatic macrophytes Fishes Feeding Rosana reservoir Paranapanema river Macrófitas aquáticas Peixes Alimentação Reservatório de Rosana Rio Paranapanema |
title_short |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil |
title_full |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil |
title_fullStr |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil |
title_full_unstemmed |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil |
title_sort |
Aquatic macrophytes as feeding site for small fishes in the Rosana Reservoir, Paranapanema River, southeastern Brazil |
author |
Casatti, L. [UNESP] |
author_facet |
Casatti, L. [UNESP] Mendes, H. F. Ferreira, K. M. |
author_role |
author |
author2 |
Mendes, H. F. Ferreira, K. M. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Casatti, L. [UNESP] Mendes, H. F. Ferreira, K. M. |
dc.subject.por.fl_str_mv |
Aquatic macrophytes Fishes Feeding Rosana reservoir Paranapanema river Macrófitas aquáticas Peixes Alimentação Reservatório de Rosana Rio Paranapanema |
topic |
Aquatic macrophytes Fishes Feeding Rosana reservoir Paranapanema river Macrófitas aquáticas Peixes Alimentação Reservatório de Rosana Rio Paranapanema |
description |
In the present investigation we studied the feeding habits of the fishes associated with aquatic macrophytes in the Rosana Reservoir, southeastern Brazil. Twenty fish species were collected during four field trips, regularly distributed across the dry and wet seasons. Focal snorkeling observations of the fishes were made over a total of six hours. Nine species were present in abundances of more than 1% and, therefore, had their feeding habits analyzed. Hemigrammus marginatus, Roeboides paranensis, Hyphessobrycon eques, Astyanax altiparanae, Serrasalmus spilopleura, and Bryconamericus stramineus were predominantly invertivores, with predominance of aquatic insects (Diptera, Ephemeroptera, and Trichoptera immatures) among their food items. The predominantly algivores were Apareiodon affinis, Serrapinnus notomelas, and Satanoperca pappaterra, with high frequency of filamentous blue-green algae, diatoms, clorophyts, and periderm. The different microhabitat exploitation plus diet composition suggests partitioning of resources and absence of food competition among the most representative fish species in the studied community, indicating the importance of the naturalistic approach to fish ecology studies. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003 2015-12-07T15:29:41Z 2015-12-07T15:29:41Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1519-69842003000200006 Brazilian Journal of Biology = Revista Brasleira de Biologia, v. 63, n. 2, p. 213-222, 2003. 1519-6984 http://hdl.handle.net/11449/130839 10.1590/S1519-69842003000200006 S1519-69842003000200006 S1519-69842003000200006.pdf 8041011456158217 14509843 |
url |
http://dx.doi.org/10.1590/S1519-69842003000200006 http://hdl.handle.net/11449/130839 |
identifier_str_mv |
Brazilian Journal of Biology = Revista Brasleira de Biologia, v. 63, n. 2, p. 213-222, 2003. 1519-6984 10.1590/S1519-69842003000200006 S1519-69842003000200006 S1519-69842003000200006.pdf 8041011456158217 14509843 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal of Biology = Revista Brasleira de Biologia 0.784 0,523 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
213-222 application/pdf |
dc.source.none.fl_str_mv |
PubMed reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965147268120576 |