Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000100006 |
Resumo: | The objective of the present study was to determine the composition of the diet of fish and its relation to the condition of canopy along a stream in the savanna of Central Brazil. Fish were collected monthly from April 1994 to March 1995. A total of 3872 individuals belonging to 82 species were captured and 1606 of them had their stomach content analysed. Allochthonous resources were widely used by fish. Although some fish groups do present generalist habits, most of the species can be included in well-defined trophic groups. Piscivores were abundant only during the flooding season when they occupied the stream looking for food and reproduction sites. Deforestation of the riparian forest has negative effects on the fish populations that depend on allochthonous resources. Lack of vegetation near the mouth of the river allows sand accumulation on the bottom of the stream and destruction of important microhabitats used as feeding and shelter, a fact that excluded some species from this site. |
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Neotropical ichthyology (Online) |
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Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia BasinNeotropical fishesfish ecologytrophic interactionsriparian forestcerradoThe objective of the present study was to determine the composition of the diet of fish and its relation to the condition of canopy along a stream in the savanna of Central Brazil. Fish were collected monthly from April 1994 to March 1995. A total of 3872 individuals belonging to 82 species were captured and 1606 of them had their stomach content analysed. Allochthonous resources were widely used by fish. Although some fish groups do present generalist habits, most of the species can be included in well-defined trophic groups. Piscivores were abundant only during the flooding season when they occupied the stream looking for food and reproduction sites. Deforestation of the riparian forest has negative effects on the fish populations that depend on allochthonous resources. Lack of vegetation near the mouth of the river allows sand accumulation on the bottom of the stream and destruction of important microhabitats used as feeding and shelter, a fact that excluded some species from this site.Sociedade Brasileira de Ictiologia2004-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000100006Neotropical Ichthyology v.2 n.1 2004reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252004000100006info:eu-repo/semantics/openAccessMelo,Cesar Enrique deMachado,Francisco de ArrudaPinto-Silva,Vangileng2008-01-02T00:00:00Zoai:scielo:S1679-62252004000100006Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2008-01-02T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
title |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
spellingShingle |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin Melo,Cesar Enrique de Neotropical fishes fish ecology trophic interactions riparian forest cerrado |
title_short |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
title_full |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
title_fullStr |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
title_full_unstemmed |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
title_sort |
Feeding habits of fish from a stream in the savanna of Central Brazil, Araguaia Basin |
author |
Melo,Cesar Enrique de |
author_facet |
Melo,Cesar Enrique de Machado,Francisco de Arruda Pinto-Silva,Vangil |
author_role |
author |
author2 |
Machado,Francisco de Arruda Pinto-Silva,Vangil |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Melo,Cesar Enrique de Machado,Francisco de Arruda Pinto-Silva,Vangil |
dc.subject.por.fl_str_mv |
Neotropical fishes fish ecology trophic interactions riparian forest cerrado |
topic |
Neotropical fishes fish ecology trophic interactions riparian forest cerrado |
description |
The objective of the present study was to determine the composition of the diet of fish and its relation to the condition of canopy along a stream in the savanna of Central Brazil. Fish were collected monthly from April 1994 to March 1995. A total of 3872 individuals belonging to 82 species were captured and 1606 of them had their stomach content analysed. Allochthonous resources were widely used by fish. Although some fish groups do present generalist habits, most of the species can be included in well-defined trophic groups. Piscivores were abundant only during the flooding season when they occupied the stream looking for food and reproduction sites. Deforestation of the riparian forest has negative effects on the fish populations that depend on allochthonous resources. Lack of vegetation near the mouth of the river allows sand accumulation on the bottom of the stream and destruction of important microhabitats used as feeding and shelter, a fact that excluded some species from this site. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000100006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000100006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1679-62252004000100006 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.2 n.1 2004 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122177778352128 |