Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1522 |
Resumo: | This study aimed to investigate patterns of spatial and temporal distribution of testate amoebae (Rhizopoda) abundance in plankton of different reservoirs of Paraná State and the importance of hydrodinamical and morphometrical factors on determining these patterns. Thirty reservoirs studied are located in six different watersheds, including environments with variable area, morphometry and age. Sampling were carried out in July and November 2001, dry and rainy seasons, respectively. Samples were obtained at the surface of reservoirs, in the lacustrine region, using a motorized pump (600 liters per sample) and a plankton net with a mesh size of 68µm. Testate amoebae were registered in 23 of 30 reservoirs.Higher density were observed in JMF, Salto do Meio, Melissa, Mourão and Salto do Vau reservoirs, during dry season, and JMF, Salto Osório, Salto do Meio and Melissa reservoirs, during wet season These reservoirs present similar characteristics, as reduced depth and morphometric dimensions Besides that, most of them have hydrodynamical features similar to lotic environments, due to presenting high current velocity. On the other hand, testate amoebae were absent or presented low density, in general, in reservoirs with higher dimensions and depth. Instead of expected, seasonally, higher densities values were observed during dry season, for the most of studied reservoirs. These results can be related to the fact that the reservoirs during dry season have a remarkable reduction of their dimentions (area and depth), determining a greater influence of the benthonic organisms to the composition and abundance of the protozooplankton community |
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Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522Abundância de tecamebas no plâncton de reservatórios do Estado do Paraná- DOI: 10.4025/actascibiolsci.v26i4.1522tecamebasplânctonabundânciareservatórios2.01.00.00-0 Biologia GeralThis study aimed to investigate patterns of spatial and temporal distribution of testate amoebae (Rhizopoda) abundance in plankton of different reservoirs of Paraná State and the importance of hydrodinamical and morphometrical factors on determining these patterns. Thirty reservoirs studied are located in six different watersheds, including environments with variable area, morphometry and age. Sampling were carried out in July and November 2001, dry and rainy seasons, respectively. Samples were obtained at the surface of reservoirs, in the lacustrine region, using a motorized pump (600 liters per sample) and a plankton net with a mesh size of 68µm. Testate amoebae were registered in 23 of 30 reservoirs.Higher density were observed in JMF, Salto do Meio, Melissa, Mourão and Salto do Vau reservoirs, during dry season, and JMF, Salto Osório, Salto do Meio and Melissa reservoirs, during wet season These reservoirs present similar characteristics, as reduced depth and morphometric dimensions Besides that, most of them have hydrodynamical features similar to lotic environments, due to presenting high current velocity. On the other hand, testate amoebae were absent or presented low density, in general, in reservoirs with higher dimensions and depth. Instead of expected, seasonally, higher densities values were observed during dry season, for the most of studied reservoirs. These results can be related to the fact that the reservoirs during dry season have a remarkable reduction of their dimentions (area and depth), determining a greater influence of the benthonic organisms to the composition and abundance of the protozooplankton communityEste trabalho teve o objetivo de investigar os padrões de distribuição espacial e temporal da abundância de tecamebas (Rhizopoda) no plâncton de diferentes reservatórios do Estado do Paraná bem como a importância de fatores hidrodinâmicos e morfométricos na determinação desses padrões. Os 30 reservatórios estudados estão localizados em seis diferentes bacias, incluindo ambientes com áreas, morfometrias e idades variáveis. As amostragens foram realizadas em julho e novembro de 2001, períodos de estiagem e chuvoso, respectivamente. As amostras foram obtidas à superfície dos reservatórios, na região lacustre, utilizando-se uma bomba (600 litros por amostra) e uma rede de plâncton com malhagem de 68 um. As tecamebas foram registradas em 23 reservatórios. Maiores densidades foram encontradas nos reservatórios JMF, Salto do Meio, Melissa, Mourão e Salto do Vau, durante o período de estiagem, e JMF, Salto Osório, Salto do Meio e Melissa, durante o período chuvoso. Esses reservatórios apresentam características similares, como reduzidas profundidades e dimensões morfométricas. Além disso, a maioria deles têm características hidrodinâmicas similares a de ambientes lóticos, por apresentarem alta velocidade de corrente. Por outro lado, as tecamebas foram ausentes ou presentes em baixas densidades, em geral, nos reservatórios com maiores dimensões e profundidade. Ao contrário do esperado, sazonalmente, maiores densidades foram observadas durante o período de estiagem, para a maioria dos reservatórios. Esses resultados podem estar relacionados com o fato de os reservatórios, nesse período hidrológico, apresentarem uma nítida redução de suas dimensões (área e profundidade), determinando uma maior influência de organismos bentônicos para a composição e abundância da comunidade protozooplanctônica δUniversidade Estadual De Maringá2008-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/152210.4025/actascibiolsci.v26i4.1522Acta Scientiarum. Biological Sciences; Vol 26 No 4 (2004); 415-419Acta Scientiarum. Biological Sciences; v. 26 n. 4 (2004); 415-4191807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1522/949Velho, Luiz Felipe MachadoAlves, Geziele MucioLansac-toha, Fabio AmodeoBonecker, Claudia CostaPereira, Danielle Goeldnerinfo:eu-repo/semantics/openAccess2022-11-23T17:33:11Zoai:periodicos.uem.br/ojs:article/1522Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:11Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 Abundância de tecamebas no plâncton de reservatórios do Estado do Paraná- DOI: 10.4025/actascibiolsci.v26i4.1522 |
title |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 |
spellingShingle |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 Velho, Luiz Felipe Machado tecamebas plâncton abundância reservatórios 2.01.00.00-0 Biologia Geral |
title_short |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 |
title_full |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 |
title_fullStr |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 |
title_full_unstemmed |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 |
title_sort |
Testate amoebae abundance in plankton samples from Paraná State reservoirs - DOI: 10.4025/actascibiolsci.v26i4.1522 |
author |
Velho, Luiz Felipe Machado |
author_facet |
Velho, Luiz Felipe Machado Alves, Geziele Mucio Lansac-toha, Fabio Amodeo Bonecker, Claudia Costa Pereira, Danielle Goeldner |
author_role |
author |
author2 |
Alves, Geziele Mucio Lansac-toha, Fabio Amodeo Bonecker, Claudia Costa Pereira, Danielle Goeldner |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Velho, Luiz Felipe Machado Alves, Geziele Mucio Lansac-toha, Fabio Amodeo Bonecker, Claudia Costa Pereira, Danielle Goeldner |
dc.subject.por.fl_str_mv |
tecamebas plâncton abundância reservatórios 2.01.00.00-0 Biologia Geral |
topic |
tecamebas plâncton abundância reservatórios 2.01.00.00-0 Biologia Geral |
description |
This study aimed to investigate patterns of spatial and temporal distribution of testate amoebae (Rhizopoda) abundance in plankton of different reservoirs of Paraná State and the importance of hydrodinamical and morphometrical factors on determining these patterns. Thirty reservoirs studied are located in six different watersheds, including environments with variable area, morphometry and age. Sampling were carried out in July and November 2001, dry and rainy seasons, respectively. Samples were obtained at the surface of reservoirs, in the lacustrine region, using a motorized pump (600 liters per sample) and a plankton net with a mesh size of 68µm. Testate amoebae were registered in 23 of 30 reservoirs.Higher density were observed in JMF, Salto do Meio, Melissa, Mourão and Salto do Vau reservoirs, during dry season, and JMF, Salto Osório, Salto do Meio and Melissa reservoirs, during wet season These reservoirs present similar characteristics, as reduced depth and morphometric dimensions Besides that, most of them have hydrodynamical features similar to lotic environments, due to presenting high current velocity. On the other hand, testate amoebae were absent or presented low density, in general, in reservoirs with higher dimensions and depth. Instead of expected, seasonally, higher densities values were observed during dry season, for the most of studied reservoirs. These results can be related to the fact that the reservoirs during dry season have a remarkable reduction of their dimentions (area and depth), determining a greater influence of the benthonic organisms to the composition and abundance of the protozooplankton community |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-31 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1522 10.4025/actascibiolsci.v26i4.1522 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1522 |
identifier_str_mv |
10.4025/actascibiolsci.v26i4.1522 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1522/949 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 26 No 4 (2004); 415-419 Acta Scientiarum. Biological Sciences; v. 26 n. 4 (2004); 415-419 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
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1799317392435707904 |