Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems

Detalhes bibliográficos
Autor(a) principal: Villares Junior,GA
Data de Publicação: 2015
Outros Autores: Goitein,R
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000400650
Resumo: AbstractThe aim of this study was to compare the food composition of Rhamdia quelen in four distinct order rivers. It was performed at a low part at the basin of the Sorocaba river in systems classified as first (Anastácio stream), second (Nego stream), fifth (Tatuí river) and sixth (Sorocaba river) orders. Collections were performed every month between January and December of 2011. The stomach contents were examined by using the alimentary index (IAi) and compared by the non-parametric method non-metric multidimensional scale ranking (NMDS) with the Spearman rank correlation. A diet difference was observed for individuals of the smaller systems (Anastácio and Nego streams) and the larger ones (Tatui and Sorocaba rivers), represented respectively by allochthonous and autochthonous organisms compounding their diets. Marginal vegetation and its interaction with the water conditions may respond to these composition differences.
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spelling Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systemsSorocaba river basinalochthonous itemsautochthonous itemsopportunist fishAtlantic. Rain ForestAbstractThe aim of this study was to compare the food composition of Rhamdia quelen in four distinct order rivers. It was performed at a low part at the basin of the Sorocaba river in systems classified as first (Anastácio stream), second (Nego stream), fifth (Tatuí river) and sixth (Sorocaba river) orders. Collections were performed every month between January and December of 2011. The stomach contents were examined by using the alimentary index (IAi) and compared by the non-parametric method non-metric multidimensional scale ranking (NMDS) with the Spearman rank correlation. A diet difference was observed for individuals of the smaller systems (Anastácio and Nego streams) and the larger ones (Tatui and Sorocaba rivers), represented respectively by allochthonous and autochthonous organisms compounding their diets. Marginal vegetation and its interaction with the water conditions may respond to these composition differences.Instituto Internacional de Ecologia2015-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000400650Brazilian Journal of Biology v.75 n.3 2015reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.20313info:eu-repo/semantics/openAccessVillares Junior,GAGoitein,Reng2015-10-01T00:00:00Zoai:scielo:S1519-69842015000400650Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2015-10-01T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false
dc.title.none.fl_str_mv Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
title Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
spellingShingle Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
Villares Junior,GA
Sorocaba river basin
alochthonous items
autochthonous items
opportunist fish
Atlantic. Rain Forest
title_short Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
title_full Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
title_fullStr Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
title_full_unstemmed Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
title_sort Differences in the feeding of Rhamdia quelen (Siluriformes, Heptapteridae) in four distinct lotic systems
author Villares Junior,GA
author_facet Villares Junior,GA
Goitein,R
author_role author
author2 Goitein,R
author2_role author
dc.contributor.author.fl_str_mv Villares Junior,GA
Goitein,R
dc.subject.por.fl_str_mv Sorocaba river basin
alochthonous items
autochthonous items
opportunist fish
Atlantic. Rain Forest
topic Sorocaba river basin
alochthonous items
autochthonous items
opportunist fish
Atlantic. Rain Forest
description AbstractThe aim of this study was to compare the food composition of Rhamdia quelen in four distinct order rivers. It was performed at a low part at the basin of the Sorocaba river in systems classified as first (Anastácio stream), second (Nego stream), fifth (Tatuí river) and sixth (Sorocaba river) orders. Collections were performed every month between January and December of 2011. The stomach contents were examined by using the alimentary index (IAi) and compared by the non-parametric method non-metric multidimensional scale ranking (NMDS) with the Spearman rank correlation. A diet difference was observed for individuals of the smaller systems (Anastácio and Nego streams) and the larger ones (Tatui and Sorocaba rivers), represented respectively by allochthonous and autochthonous organisms compounding their diets. Marginal vegetation and its interaction with the water conditions may respond to these composition differences.
publishDate 2015
dc.date.none.fl_str_mv 2015-08-01
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=S1519-69842015000400650
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842015000400650
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1519-6984.20313
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 Instituto Internacional de Ecologia
publisher.none.fl_str_mv Instituto Internacional de Ecologia
dc.source.none.fl_str_mv Brazilian Journal of Biology v.75 n.3 2015
reponame:Brazilian Journal of Biology
instname:Instituto Internacional de Ecologia (IIE)
instacron:IIE
instname_str Instituto Internacional de Ecologia (IIE)
instacron_str IIE
institution IIE
reponame_str Brazilian Journal of Biology
collection Brazilian Journal of Biology
repository.name.fl_str_mv Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)
repository.mail.fl_str_mv bjb@bjb.com.br||bjb@bjb.com.br
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