Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biotemas (Online) |
Texto Completo: | https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2019v32n1p65 |
Resumo: | The feeding habit, psammophilous behavior and the morphology of Gymnorhamphichthys rondoni make it a highly specialized species with an important role in stream ecosystems. Accordingly, the aim of the present study was to analyze the use of microhabitats, diet composition, feeding strategies, niche breadth and spatial distribution of G. rondoni species in headwater streams. In each of the three selected streams (P1, P2 and P3), located on the Catuaba Experimental Farm (Acre, Brazil), we collected three samples of organic matter substrate and three of clay during drought, ebb and flood periods. The results showed that the population of G. rondoni increased along the longitudinal gradient, mainly during drought (376 individuals), in which the individuals occupied substrates composed of sand and showed a diet based mainly on benthic prey such as larvae of Diptera and Coleoptera. Thus, the preference for feeding on autochthonous larvae by G. rondoni and their specialized morphology may be due to their relationship with sand microhabitats. Thus, the loss of these microhabitats may negatively influence the population of G. rondoni. |
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Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western AmazonAnálise do uso de microhabitat, distribuição espacial e dieta de Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) em riachos de baixa ordem, Amazônia OcidentalThe feeding habit, psammophilous behavior and the morphology of Gymnorhamphichthys rondoni make it a highly specialized species with an important role in stream ecosystems. Accordingly, the aim of the present study was to analyze the use of microhabitats, diet composition, feeding strategies, niche breadth and spatial distribution of G. rondoni species in headwater streams. In each of the three selected streams (P1, P2 and P3), located on the Catuaba Experimental Farm (Acre, Brazil), we collected three samples of organic matter substrate and three of clay during drought, ebb and flood periods. The results showed that the population of G. rondoni increased along the longitudinal gradient, mainly during drought (376 individuals), in which the individuals occupied substrates composed of sand and showed a diet based mainly on benthic prey such as larvae of Diptera and Coleoptera. Thus, the preference for feeding on autochthonous larvae by G. rondoni and their specialized morphology may be due to their relationship with sand microhabitats. Thus, the loss of these microhabitats may negatively influence the population of G. rondoni.O hábito alimentar, psamófilo, e a morfologia de Gymnorhamphichthys rondoni, o tornam uma espécie altamente especializada, com importante papel em sistemas de riachos. Nesse sentido, o objetivo do presente estudo foi analisar o uso de microhabitats, composição da dieta, estratégias alimentares, amplitude de nicho e distribuição espacial da espécie de G. rondoni, em riachos de cabeceiras. Em cada um dos três riachos selecionados (P1, P2 e P3), localizados na Fazenda Experimental Catuaba, Acre, foram amostrados três pontos compostos por substrato de areia, três compostos por substrato de matéria orgânica e três compostos por argila, durante os períodos de seca, vazante e cheia. Os resultados mostraram que a população de G. rondoni aumentou ao longo do gradiente longitudinal, principalmente, durante o período de seca (376 indivíduos), no qual os indivíduos ocuparam substratos compostos por areia e apresentaram dieta baseada, principalmente, por presas bentônicas, como larvas de Diptera e Coleoptera. Assim, a preferência pelo consumo de larvas autóctone por G. rondoni e a sua morfologia especializada podem estar associadas à sua relação com os microhabitats de areia. O que se sugere é que a perda desses microhabitats pode influenciar negativamente a população de G. rondoni.Universidade Federal de Santa Catarina2019-02-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2019v32n1p6510.5007/2175-7925.2019v32n1p65Biotemas; v. 32 n. 1 (2019); 65-762175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCenghttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2019v32n1p65/38491Copyright (c) 2019 Lucena Rocha Virgilio, Rodrigo Gomes, Monik Suçuarana, Lisandro Vieirainfo:eu-repo/semantics/openAccessVirgilio, Lucena RochaGomes, RodrigoSuçuarana, MonikVieira, Lisandro2019-03-01T09:20:52Zoai:periodicos.ufsc.br:article/56501Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2019-03-01T09:20:52Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon Análise do uso de microhabitat, distribuição espacial e dieta de Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) em riachos de baixa ordem, Amazônia Ocidental |
title |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon |
spellingShingle |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon Virgilio, Lucena Rocha |
title_short |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon |
title_full |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon |
title_fullStr |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon |
title_full_unstemmed |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon |
title_sort |
Analysis of the use of microhabitats, spatial distribution and diet of Gymnorhamphichthys rondoni (Miranda-Ribeiro, 1920) (Rhamphichthyidae) in low-order streams in western Amazon |
author |
Virgilio, Lucena Rocha |
author_facet |
Virgilio, Lucena Rocha Gomes, Rodrigo Suçuarana, Monik Vieira, Lisandro |
author_role |
author |
author2 |
Gomes, Rodrigo Suçuarana, Monik Vieira, Lisandro |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Virgilio, Lucena Rocha Gomes, Rodrigo Suçuarana, Monik Vieira, Lisandro |
description |
The feeding habit, psammophilous behavior and the morphology of Gymnorhamphichthys rondoni make it a highly specialized species with an important role in stream ecosystems. Accordingly, the aim of the present study was to analyze the use of microhabitats, diet composition, feeding strategies, niche breadth and spatial distribution of G. rondoni species in headwater streams. In each of the three selected streams (P1, P2 and P3), located on the Catuaba Experimental Farm (Acre, Brazil), we collected three samples of organic matter substrate and three of clay during drought, ebb and flood periods. The results showed that the population of G. rondoni increased along the longitudinal gradient, mainly during drought (376 individuals), in which the individuals occupied substrates composed of sand and showed a diet based mainly on benthic prey such as larvae of Diptera and Coleoptera. Thus, the preference for feeding on autochthonous larvae by G. rondoni and their specialized morphology may be due to their relationship with sand microhabitats. Thus, the loss of these microhabitats may negatively influence the population of G. rondoni. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-02-25 |
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 |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2019v32n1p65 10.5007/2175-7925.2019v32n1p65 |
url |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2019v32n1p65 |
identifier_str_mv |
10.5007/2175-7925.2019v32n1p65 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2019v32n1p65/38491 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Lucena Rocha Virgilio, Rodrigo Gomes, Monik Suçuarana, Lisandro Vieira info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Lucena Rocha Virgilio, Rodrigo Gomes, Monik Suçuarana, Lisandro Vieira |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
publisher.none.fl_str_mv |
Universidade Federal de Santa Catarina |
dc.source.none.fl_str_mv |
Biotemas; v. 32 n. 1 (2019); 65-76 2175-7925 0103-1643 reponame:Biotemas (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Biotemas (Online) |
collection |
Biotemas (Online) |
repository.name.fl_str_mv |
Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
||carlospinto@ccb.ufsc.br |
_version_ |
1799940554129145856 |