COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Biota Amazônia |
Texto Completo: | https://periodicos.unifap.br/index.php/biota/article/view/609 |
Resumo: | Hoplias malabaricus and Hypostomus pusarum are fish species which are of ecological and economical importance in the neotropical aquatic ecosystems. The present work compares the morphological aspects of the digestive tract of H. malabaricus and H. pusarum, in relation to their feeding habits. During the period July, 2011 to June, 2012, 45 individuals of H. malabaricus and 33 of H. pusarum were captured, using gillnets and cast nets in the Marechal Dutra reservoir, Acari, RN. Each individual was measured for total length and body weight was obtained. The position of the mouth, presence and type of teeth, number of gill rakers, esophagus, stomach and the presence of pyloric caeca were observed for morphological description. The intestinal length was checked and stomach contents were identified to the lowest possible taxonomic level. The mouth and teeth of H. malabaricus are adapted to grab and swallow large prey, while that of H. pusarum are adapted for scraping. The first branchial arch of H. malabaricus has seven gill rakers, which are spaced, short and sharp, but H. pusarum has no gill rakers. The arrangement of the digestive organs in both species is directly related to the shape of the peritoneal cavity and body shape. H. malabaricus has a short intestine, while H. pusarum presents a very long intestine. . H. malabaricus feeds on animal material, preferably fish (72.8%) and prawns (27.2%), while the diet of H. pusarum constituted mainly of decaying organic matter (88.7%) and microalgas (11.3%). The morphology of the digestive tract and the stomach contents of H. malabaricus indicte a carnivorous food habit and that of H. pusarum confirms a detritivore / herbivore food habit.Keywords: Morphological aspects, digestive tract, diet, Hoplias malabaricus, Hypostomus pusarum. |
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COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZILMORFOLOGIA COMPARATIVA DO TRATO DIGESTÓRIO DOS PEIXES Hoplias malabaricus E Hypostomus pusarum DO AÇUDE MARECHAL DUTRA, RIO GRANDE DO NORTE, BRASIL.Hoplias malabaricus and Hypostomus pusarum are fish species which are of ecological and economical importance in the neotropical aquatic ecosystems. The present work compares the morphological aspects of the digestive tract of H. malabaricus and H. pusarum, in relation to their feeding habits. During the period July, 2011 to June, 2012, 45 individuals of H. malabaricus and 33 of H. pusarum were captured, using gillnets and cast nets in the Marechal Dutra reservoir, Acari, RN. Each individual was measured for total length and body weight was obtained. The position of the mouth, presence and type of teeth, number of gill rakers, esophagus, stomach and the presence of pyloric caeca were observed for morphological description. The intestinal length was checked and stomach contents were identified to the lowest possible taxonomic level. The mouth and teeth of H. malabaricus are adapted to grab and swallow large prey, while that of H. pusarum are adapted for scraping. The first branchial arch of H. malabaricus has seven gill rakers, which are spaced, short and sharp, but H. pusarum has no gill rakers. The arrangement of the digestive organs in both species is directly related to the shape of the peritoneal cavity and body shape. H. malabaricus has a short intestine, while H. pusarum presents a very long intestine. . H. malabaricus feeds on animal material, preferably fish (72.8%) and prawns (27.2%), while the diet of H. pusarum constituted mainly of decaying organic matter (88.7%) and microalgas (11.3%). The morphology of the digestive tract and the stomach contents of H. malabaricus indicte a carnivorous food habit and that of H. pusarum confirms a detritivore / herbivore food habit.Keywords: Morphological aspects, digestive tract, diet, Hoplias malabaricus, Hypostomus pusarum.A traÃra, Hoplias malabaricus e o cascudo, Hypostomus pusarum são espécies de peixes que apresentam importância ecológica e econômica nos ecossistemas aquáticos neotropicais. O presente trabalho comparou os aspectos morfológicos do trato digestório de H. malabaricus e H. pusarum, relacionando-os com seu hábito alimentar. No perÃodo de julho de 2011 a junho de 2012, foram capturados 45 espécimes de H. malabaricus e 33 de H. pusarum, utilizando-se rede de espera e tarrafa no açude Marechal Dutra, Acari, RN. Foram obtidos de cada exemplar o comprimento total e peso do corpo. A posição da boca, presença e tipo dos dentes, número de rastros branquiais, esôfago, forma do estômago e presença de cecos pilóricos foram observados para a descrição morfológica. O comprimento intestinal foi verificado e o conteúdo estomacal foi identificado até o nÃvel taxonômico mais inferior possÃvel. A boca e os dentes de H. malabaricus são adaptados para agarrar e ingerir grandes presas inteiras, enquanto de H. pusarum são adaptados para raspagem. O primeiro o arco branquial de H. malabaricus possui em média sete rastros branquiais afastados entre si, curtos e pontiagudos, mas H. pusarum não apresenta rastros brânquias. A disposição dos órgãos digestórios em ambas as espécies está diretamente relacionada com a forma da cavidade peritoneal e o formato do corpo. H. malabaricus apresenta um intestino curto, porém H. pusarum mostra um intestino muito longo. H. malabaricus alimentou-se de material animal, preferencialmente de peixes (72,8%) e camarões (27,2%), enquanto a dieta de H. pusarum foi baseada em material orgânico em decomposição (88,7%) e microalgas (11,3%). A morfologia do trato digestório e o conteúdo estomacal de H. malabaricus indica hábito alimentar carnÃvoro, e de H. pusarum confirma seu hábito alimentar detritÃvoro/herbÃvoro.Palavras-chave: aspectos morfológicos, trato digestório, dieta, Hoplias malabaricus, Hypostomus pusarum.Universidade Federal do AmapáCNPqRodrigues Pessoa, Emilly Katalineda Silva, Naisandra BezerraChellappa, Naithirithi T.de Souza, Arrilton AraújoChellappa, Sathyabama2013-07-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo Avaliado pelos Paresapplication/pdfhttps://periodicos.unifap.br/index.php/biota/article/view/60910.18561/2179-5746/biotaamazonia.v3n1p48-57Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 3, n. 1 (2013); 48-572179-5746reponame:Biota Amazôniainstname:Universidade Federal do Amapá (UNIFAP)instacron:UNIFAPporhttps://periodicos.unifap.br/index.php/biota/article/view/609/v3n1p48-57.pdfDireitos autorais 2013 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota)http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2016-04-15T14:43:56Zoai:ojs.pkp.sfu.ca:article/609Revistahttp://periodicos.unifap.br/index.php/biotaONGhttps://periodicos.unifap.br/index.php/biota/oai||juliosa@unifap.br2179-57462179-5746opendoar:2016-04-15T14:43:56Biota Amazônia - Universidade Federal do Amapá (UNIFAP)false |
dc.title.none.fl_str_mv |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL MORFOLOGIA COMPARATIVA DO TRATO DIGESTÓRIO DOS PEIXES Hoplias malabaricus E Hypostomus pusarum DO AÇUDE MARECHAL DUTRA, RIO GRANDE DO NORTE, BRASIL. |
title |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL |
spellingShingle |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL Rodrigues Pessoa, Emilly Kataline |
title_short |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL |
title_full |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL |
title_fullStr |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL |
title_full_unstemmed |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL |
title_sort |
COMPARATIVE MORPHOLOGY OF THE DIGESTIVE TRACT OF THE FISHES Hoplias malabaricus AND Hypostomus pusarum IN MARECHAL DUTRA RESERVOIR, RIO GRANDE DO NORTE, BRAZIL |
author |
Rodrigues Pessoa, Emilly Kataline |
author_facet |
Rodrigues Pessoa, Emilly Kataline da Silva, Naisandra Bezerra Chellappa, Naithirithi T. de Souza, Arrilton Araújo Chellappa, Sathyabama |
author_role |
author |
author2 |
da Silva, Naisandra Bezerra Chellappa, Naithirithi T. de Souza, Arrilton Araújo Chellappa, Sathyabama |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
CNPq |
dc.contributor.author.fl_str_mv |
Rodrigues Pessoa, Emilly Kataline da Silva, Naisandra Bezerra Chellappa, Naithirithi T. de Souza, Arrilton Araújo Chellappa, Sathyabama |
description |
Hoplias malabaricus and Hypostomus pusarum are fish species which are of ecological and economical importance in the neotropical aquatic ecosystems. The present work compares the morphological aspects of the digestive tract of H. malabaricus and H. pusarum, in relation to their feeding habits. During the period July, 2011 to June, 2012, 45 individuals of H. malabaricus and 33 of H. pusarum were captured, using gillnets and cast nets in the Marechal Dutra reservoir, Acari, RN. Each individual was measured for total length and body weight was obtained. The position of the mouth, presence and type of teeth, number of gill rakers, esophagus, stomach and the presence of pyloric caeca were observed for morphological description. The intestinal length was checked and stomach contents were identified to the lowest possible taxonomic level. The mouth and teeth of H. malabaricus are adapted to grab and swallow large prey, while that of H. pusarum are adapted for scraping. The first branchial arch of H. malabaricus has seven gill rakers, which are spaced, short and sharp, but H. pusarum has no gill rakers. The arrangement of the digestive organs in both species is directly related to the shape of the peritoneal cavity and body shape. H. malabaricus has a short intestine, while H. pusarum presents a very long intestine. . H. malabaricus feeds on animal material, preferably fish (72.8%) and prawns (27.2%), while the diet of H. pusarum constituted mainly of decaying organic matter (88.7%) and microalgas (11.3%). The morphology of the digestive tract and the stomach contents of H. malabaricus indicte a carnivorous food habit and that of H. pusarum confirms a detritivore / herbivore food habit.Keywords: Morphological aspects, digestive tract, diet, Hoplias malabaricus, Hypostomus pusarum. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-07-08 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo Avaliado pelos Pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.unifap.br/index.php/biota/article/view/609 10.18561/2179-5746/biotaamazonia.v3n1p48-57 |
url |
https://periodicos.unifap.br/index.php/biota/article/view/609 |
identifier_str_mv |
10.18561/2179-5746/biotaamazonia.v3n1p48-57 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://periodicos.unifap.br/index.php/biota/article/view/609/v3n1p48-57.pdf |
dc.rights.driver.fl_str_mv |
Direitos autorais 2013 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota) http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2013 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota) http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
|
dc.publisher.none.fl_str_mv |
Universidade Federal do Amapá |
publisher.none.fl_str_mv |
Universidade Federal do Amapá |
dc.source.none.fl_str_mv |
Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 3, n. 1 (2013); 48-57 2179-5746 reponame:Biota Amazônia instname:Universidade Federal do Amapá (UNIFAP) instacron:UNIFAP |
instname_str |
Universidade Federal do Amapá (UNIFAP) |
instacron_str |
UNIFAP |
institution |
UNIFAP |
reponame_str |
Biota Amazônia |
collection |
Biota Amazônia |
repository.name.fl_str_mv |
Biota Amazônia - Universidade Federal do Amapá (UNIFAP) |
repository.mail.fl_str_mv |
||juliosa@unifap.br |
_version_ |
1800218371686400000 |