Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Archives of Biology and Technology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400014 |
Resumo: | The aim of this study was to test the effects of natural free-floating plants on zooplankton distribution in a shallow subtropical lake. First, the hypothesis that free-floating plants have an effect on physico-chemicals, leading to a decrease on nutrient availability and influencing the phytoplankton biomass and zooplankton community was tested. Second, the hypothesis that free-floating plants act as a refuge for zooplankton was tested. Three microhabitats were selected: free-floating plants, littoral area and open water. Results demonstrated that the effects of different microhabitats on phytoplankton biomass and physico-chemicals were not significant, indicating a weak influence of the plants. Zooplankton densities were higher in free-floating plants and littoral area, although the effect of microhabitats was weak for most of the predominant genera. The absence of free-floating plant effects on phytoplankton and physico-chemicals showed that it was not a factor influencing the microcrustacean distribution in the microhabitats. Low differences in densities of zooplankton among microhabitats and low abundance of large-bodied cladocerans led to reject the hypothesis that free-floating plants act as a refuge for zooplankton. |
id |
TECPAR-1_beab30768bcecd9557e9342db1c3cda7 |
---|---|
oai_identifier_str |
oai:scielo:S1516-89132011000400014 |
network_acronym_str |
TECPAR-1 |
network_name_str |
Brazilian Archives of Biology and Technology |
repository_id_str |
|
spelling |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazilmacrophytesrefugespatial distributiontropical zooplanktonThe aim of this study was to test the effects of natural free-floating plants on zooplankton distribution in a shallow subtropical lake. First, the hypothesis that free-floating plants have an effect on physico-chemicals, leading to a decrease on nutrient availability and influencing the phytoplankton biomass and zooplankton community was tested. Second, the hypothesis that free-floating plants act as a refuge for zooplankton was tested. Three microhabitats were selected: free-floating plants, littoral area and open water. Results demonstrated that the effects of different microhabitats on phytoplankton biomass and physico-chemicals were not significant, indicating a weak influence of the plants. Zooplankton densities were higher in free-floating plants and littoral area, although the effect of microhabitats was weak for most of the predominant genera. The absence of free-floating plant effects on phytoplankton and physico-chemicals showed that it was not a factor influencing the microcrustacean distribution in the microhabitats. Low differences in densities of zooplankton among microhabitats and low abundance of large-bodied cladocerans led to reject the hypothesis that free-floating plants act as a refuge for zooplankton.Instituto de Tecnologia do Paraná - Tecpar2011-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400014Brazilian Archives of Biology and Technology v.54 n.4 2011reponame:Brazilian Archives of Biology and Technologyinstname:Instituto de Tecnologia do Paraná (Tecpar)instacron:TECPAR10.1590/S1516-89132011000400014info:eu-repo/semantics/openAccessGazulha,VanessaMontú,MônicaMarques,David da MottaBonecker,Claúdia Costaeng2011-08-11T00:00:00Zoai:scielo:S1516-89132011000400014Revistahttps://www.scielo.br/j/babt/https://old.scielo.br/oai/scielo-oai.phpbabt@tecpar.br||babt@tecpar.br1678-43241516-8913opendoar:2011-08-11T00:00Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar)false |
dc.title.none.fl_str_mv |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
title |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
spellingShingle |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil Gazulha,Vanessa macrophytes refuge spatial distribution tropical zooplankton |
title_short |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
title_full |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
title_fullStr |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
title_full_unstemmed |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
title_sort |
Effects of natural banks of free-floating plants on zooplankton community in a shallow subtropical lake in Southern Brazil |
author |
Gazulha,Vanessa |
author_facet |
Gazulha,Vanessa Montú,Mônica Marques,David da Motta Bonecker,Claúdia Costa |
author_role |
author |
author2 |
Montú,Mônica Marques,David da Motta Bonecker,Claúdia Costa |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Gazulha,Vanessa Montú,Mônica Marques,David da Motta Bonecker,Claúdia Costa |
dc.subject.por.fl_str_mv |
macrophytes refuge spatial distribution tropical zooplankton |
topic |
macrophytes refuge spatial distribution tropical zooplankton |
description |
The aim of this study was to test the effects of natural free-floating plants on zooplankton distribution in a shallow subtropical lake. First, the hypothesis that free-floating plants have an effect on physico-chemicals, leading to a decrease on nutrient availability and influencing the phytoplankton biomass and zooplankton community was tested. Second, the hypothesis that free-floating plants act as a refuge for zooplankton was tested. Three microhabitats were selected: free-floating plants, littoral area and open water. Results demonstrated that the effects of different microhabitats on phytoplankton biomass and physico-chemicals were not significant, indicating a weak influence of the plants. Zooplankton densities were higher in free-floating plants and littoral area, although the effect of microhabitats was weak for most of the predominant genera. The absence of free-floating plant effects on phytoplankton and physico-chemicals showed that it was not a factor influencing the microcrustacean distribution in the microhabitats. Low differences in densities of zooplankton among microhabitats and low abundance of large-bodied cladocerans led to reject the hypothesis that free-floating plants act as a refuge for zooplankton. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08-01 |
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=S1516-89132011000400014 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400014 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-89132011000400014 |
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 de Tecnologia do Paraná - Tecpar |
publisher.none.fl_str_mv |
Instituto de Tecnologia do Paraná - Tecpar |
dc.source.none.fl_str_mv |
Brazilian Archives of Biology and Technology v.54 n.4 2011 reponame:Brazilian Archives of Biology and Technology instname:Instituto de Tecnologia do Paraná (Tecpar) instacron:TECPAR |
instname_str |
Instituto de Tecnologia do Paraná (Tecpar) |
instacron_str |
TECPAR |
institution |
TECPAR |
reponame_str |
Brazilian Archives of Biology and Technology |
collection |
Brazilian Archives of Biology and Technology |
repository.name.fl_str_mv |
Brazilian Archives of Biology and Technology - Instituto de Tecnologia do Paraná (Tecpar) |
repository.mail.fl_str_mv |
babt@tecpar.br||babt@tecpar.br |
_version_ |
1750318274796584960 |