Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream

Detalhes bibliográficos
Autor(a) principal: Gorni, Guilherme Rossi
Data de Publicação: 2014
Outros Autores: Alves, Roberto da Gama
Tipo de documento: Artigo
Idioma: por
Título da fonte: Biotemas (Online)
Texto Completo: https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p59
Resumo: Among the organisms of the benthic community, oligochaetes play a key role in the energy low and recycling of organic matter in aquatic ecosystems, where their distribution is mainly influenced by local hydrological patterns. Thus, this study aimed to investigate the influence of environmental variables on the community of limnic oligochaetes in a neotropical lotic system. Galharada stream is located within the Campos do Jordão State Park (PECJ), in the state of São Paulo, Brazil, 1,600 m above sea level; 192 samples were collected from 4 sites selected according to their hierarchical order within the river basin (first to fourth order). To correlate the environmental variables to the oligochaete fauna, the Canonical Correspondence Analysis (CCA) was performed. We identified 16 species divided into 4 families (Enchytraeidae, Naididae, Pristinidae, and Tubiicidae). The results of CCA revealed that the physical characteristics of stretches, such as stream depth and width, low speed, and low rate were the factors that most inluenced on the structure of the aquatic Oligochaeta community in Campos do Jordão. The species Aulodrilus limnobius and Nais communis were considered along with the variables electrical conductivity and turbidity, indicating a possible association with environments enriched with organic matter. The occurrence of Enchytraeidae, Pristina rosea, Chaetogaster diastrophus, Pristina proboscidea, and Limnodrilus hoffmeisteri was seemingly uncorrelated to the environmental variables analyzed in this study. Our findings reinforce using the Oligochaeta community as bioindicators, by participating in the environmental assessment of continental aquatic ecosystems.
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spelling Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical streamInfluência de variáveis ambientais sobre a comunidade de oligoquetos (Annelida: Clitellata) em um córrego neotropicalAmong the organisms of the benthic community, oligochaetes play a key role in the energy low and recycling of organic matter in aquatic ecosystems, where their distribution is mainly influenced by local hydrological patterns. Thus, this study aimed to investigate the influence of environmental variables on the community of limnic oligochaetes in a neotropical lotic system. Galharada stream is located within the Campos do Jordão State Park (PECJ), in the state of São Paulo, Brazil, 1,600 m above sea level; 192 samples were collected from 4 sites selected according to their hierarchical order within the river basin (first to fourth order). To correlate the environmental variables to the oligochaete fauna, the Canonical Correspondence Analysis (CCA) was performed. We identified 16 species divided into 4 families (Enchytraeidae, Naididae, Pristinidae, and Tubiicidae). The results of CCA revealed that the physical characteristics of stretches, such as stream depth and width, low speed, and low rate were the factors that most inluenced on the structure of the aquatic Oligochaeta community in Campos do Jordão. The species Aulodrilus limnobius and Nais communis were considered along with the variables electrical conductivity and turbidity, indicating a possible association with environments enriched with organic matter. The occurrence of Enchytraeidae, Pristina rosea, Chaetogaster diastrophus, Pristina proboscidea, and Limnodrilus hoffmeisteri was seemingly uncorrelated to the environmental variables analyzed in this study. Our findings reinforce using the Oligochaeta community as bioindicators, by participating in the environmental assessment of continental aquatic ecosystems.Dentre os organismos da comunidade bentônica, os oligoquetos são peças fundamentais no fluxo de energia e na reciclagem de matéria orgânica nos ecossistemas aquáticos, onde sua distribuição é influenciada, principalmente, pelos padrões hidrológicos locais. Assim, o objetivo deste estudo foi investigar a influência das variáveis ambientais sobre a comunidade de oligoquetos límnicos em um sistema lótico neotropical. O córrego Galharada está localizado no Parque Estadual de Campos do Jordão (PECJ), no estado de São Paulo, 1.600 m acima do nível do mar; 192 amostras foram coletadas em quatro pontos selecionados segundo sua ordem hierárquica dentro da bacia hidrográfica (primeira à quarta ordem). A fim de correlacionar as variáveis ambientais e a fauna de oligoquetos utilizou-se a Análise de Correspondência Canônica (CCA). Foram identificadas 16 espécies divididas em quatro famílias (Enchytraeidae, Naididae, Pristinidae e Tubificidae). Os resultados da CCA revelaram que as características físicas dos trechos, como profundidade e largura do córrego, velocidade do fluxo e vazão foram os fatores que mais influenciaram a estrutura da comunidade de oligoquetos aquáticos em Campos do Jordão. As espécies Aulodrilus limnobius e Nais communis foram projetadas junto às variáveis condutividade elétrica e turbidez, indicando possível associação com ambientes enriquecidos com matéria orgânica. A ocorrência de Enchytraeidae, Pristina rosea, Chaetogaster diastrophus, Pristina proboscidea e Limnodrilus hoffmeisteri, aparentemente, não apresentou correlação com as variáveis ambientais analisadas neste estudo. Nossos resultados reforçam a utilização da comunidade de oligoquetos como bioindicadores, participando de processos de avaliação de ecossistemas aquáticos continentais. Universidade Federal de Santa Catarina2014-12-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p5910.5007/2175-7925.2015v28n1p59Biotemas; v. 28 n. 1 (2015); 59-662175-79250103-1643reponame:Biotemas (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p59/28662Copyright (c) 2015 Guilherme Rossi Gorni, Roberto da Gama Alvesinfo:eu-repo/semantics/openAccessGorni, Guilherme RossiAlves, Roberto da Gama2017-10-19T17:01:25Zoai:periodicos.ufsc.br:article/33702Revistahttp://www.biotemas.ufsc.br/index.htmPUBhttps://periodicos.ufsc.br/index.php/biotemas/oai||carlospinto@ccb.ufsc.br2175-79250103-1643opendoar:2017-10-19T17:01:25Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)false
dc.title.none.fl_str_mv Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
Influência de variáveis ambientais sobre a comunidade de oligoquetos (Annelida: Clitellata) em um córrego neotropical
title Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
spellingShingle Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
Gorni, Guilherme Rossi
title_short Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
title_full Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
title_fullStr Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
title_full_unstemmed Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
title_sort Influence of environmental variables on the Oligochaeta (Annelida: Clitellata) community in a neotropical stream
author Gorni, Guilherme Rossi
author_facet Gorni, Guilherme Rossi
Alves, Roberto da Gama
author_role author
author2 Alves, Roberto da Gama
author2_role author
dc.contributor.author.fl_str_mv Gorni, Guilherme Rossi
Alves, Roberto da Gama
description Among the organisms of the benthic community, oligochaetes play a key role in the energy low and recycling of organic matter in aquatic ecosystems, where their distribution is mainly influenced by local hydrological patterns. Thus, this study aimed to investigate the influence of environmental variables on the community of limnic oligochaetes in a neotropical lotic system. Galharada stream is located within the Campos do Jordão State Park (PECJ), in the state of São Paulo, Brazil, 1,600 m above sea level; 192 samples were collected from 4 sites selected according to their hierarchical order within the river basin (first to fourth order). To correlate the environmental variables to the oligochaete fauna, the Canonical Correspondence Analysis (CCA) was performed. We identified 16 species divided into 4 families (Enchytraeidae, Naididae, Pristinidae, and Tubiicidae). The results of CCA revealed that the physical characteristics of stretches, such as stream depth and width, low speed, and low rate were the factors that most inluenced on the structure of the aquatic Oligochaeta community in Campos do Jordão. The species Aulodrilus limnobius and Nais communis were considered along with the variables electrical conductivity and turbidity, indicating a possible association with environments enriched with organic matter. The occurrence of Enchytraeidae, Pristina rosea, Chaetogaster diastrophus, Pristina proboscidea, and Limnodrilus hoffmeisteri was seemingly uncorrelated to the environmental variables analyzed in this study. Our findings reinforce using the Oligochaeta community as bioindicators, by participating in the environmental assessment of continental aquatic ecosystems.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-15
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p59
10.5007/2175-7925.2015v28n1p59
url https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p59
identifier_str_mv 10.5007/2175-7925.2015v28n1p59
dc.language.iso.fl_str_mv por
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dc.relation.none.fl_str_mv https://periodicos.ufsc.br/index.php/biotemas/article/view/2175-7925.2015v28n1p59/28662
dc.rights.driver.fl_str_mv Copyright (c) 2015 Guilherme Rossi Gorni, Roberto da Gama Alves
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 Guilherme Rossi Gorni, Roberto da Gama Alves
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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. 28 n. 1 (2015); 59-66
2175-7925
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repository.name.fl_str_mv Biotemas (Online) - Universidade Federal de Santa Catarina (UFSC)
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