Ecological assessment of a southeastern Brazil reservoir
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biota Neotropica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000100103 |
Resumo: | Reservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize physical and chemical habitat, land use, and benthic macroinvertebrate and fish assemblages. The predominant type of land cover near the reservoir was natural vegetation. A total of 29 fish species and 39 macroinvertebrate taxa were collected, including eight alien species. Most sites had intermediate levels of human disturbance, however, high levels of degradation were associated with high proportions of alien species. Disturbances at multiple scales may alter natural patterns and processes, leading to environmental changes and damaging biological communities. Our results reinforce the importance of assessing reservoir ecological conditions at several scales. The study of land use, littoral zone physical habitat characteristics, water quality, and assemblage structure set the ground for proposing actions to rehabilitate and conserve aquatic ecosystems. |
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oai:scielo:S1676-06032015000100103 |
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Biota Neotropica |
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|
spelling |
Ecological assessment of a southeastern Brazil reservoirreservoirswater qualitybioindicatorsphysical habitatenvironmental qualityReservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize physical and chemical habitat, land use, and benthic macroinvertebrate and fish assemblages. The predominant type of land cover near the reservoir was natural vegetation. A total of 29 fish species and 39 macroinvertebrate taxa were collected, including eight alien species. Most sites had intermediate levels of human disturbance, however, high levels of degradation were associated with high proportions of alien species. Disturbances at multiple scales may alter natural patterns and processes, leading to environmental changes and damaging biological communities. Our results reinforce the importance of assessing reservoir ecological conditions at several scales. The study of land use, littoral zone physical habitat characteristics, water quality, and assemblage structure set the ground for proposing actions to rehabilitate and conserve aquatic ecosystems.Instituto Virtual da Biodiversidade | BIOTA - FAPESP2015-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000100103Biota Neotropica v.15 n.1 2015reponame:Biota Neotropicainstname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)instacron:BIOTA - FAPESP10.1590/1676-06032015006114info:eu-repo/semantics/openAccessMartins,IsabelaSanches,BarbaraKaufmann,Philip RobertHughes,Robert M.Santos,Gilmar BastosMolozzi,JoselineCallisto,Marcoseng2015-11-27T00:00:00Zoai:scielo:S1676-06032015000100103Revistahttps://www.biotaneotropica.org.br/v20n1/pt/https://old.scielo.br/oai/scielo-oai.php||juliosa@unifap.br1676-06111676-0611opendoar:2015-11-27T00:00Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)false |
dc.title.none.fl_str_mv |
Ecological assessment of a southeastern Brazil reservoir |
title |
Ecological assessment of a southeastern Brazil reservoir |
spellingShingle |
Ecological assessment of a southeastern Brazil reservoir Martins,Isabela reservoirs water quality bioindicators physical habitat environmental quality |
title_short |
Ecological assessment of a southeastern Brazil reservoir |
title_full |
Ecological assessment of a southeastern Brazil reservoir |
title_fullStr |
Ecological assessment of a southeastern Brazil reservoir |
title_full_unstemmed |
Ecological assessment of a southeastern Brazil reservoir |
title_sort |
Ecological assessment of a southeastern Brazil reservoir |
author |
Martins,Isabela |
author_facet |
Martins,Isabela Sanches,Barbara Kaufmann,Philip Robert Hughes,Robert M. Santos,Gilmar Bastos Molozzi,Joseline Callisto,Marcos |
author_role |
author |
author2 |
Sanches,Barbara Kaufmann,Philip Robert Hughes,Robert M. Santos,Gilmar Bastos Molozzi,Joseline Callisto,Marcos |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Martins,Isabela Sanches,Barbara Kaufmann,Philip Robert Hughes,Robert M. Santos,Gilmar Bastos Molozzi,Joseline Callisto,Marcos |
dc.subject.por.fl_str_mv |
reservoirs water quality bioindicators physical habitat environmental quality |
topic |
reservoirs water quality bioindicators physical habitat environmental quality |
description |
Reservoirs are artificial ecosystems with multiple functions having direct and indirect benefits to humans; however, they also cause ecological changes and influence the composition and structure of aquatic biota. Our objectives were to: (1) assess the environmental condition of Nova Ponte Reservoir, Minas Gerais state, southeastern Brazil; and (2) determine how the aquatic biota respond to disturbances. A total of 40 sites in the littoral zone of the reservoir were sampled to characterize physical and chemical habitat, land use, and benthic macroinvertebrate and fish assemblages. The predominant type of land cover near the reservoir was natural vegetation. A total of 29 fish species and 39 macroinvertebrate taxa were collected, including eight alien species. Most sites had intermediate levels of human disturbance, however, high levels of degradation were associated with high proportions of alien species. Disturbances at multiple scales may alter natural patterns and processes, leading to environmental changes and damaging biological communities. Our results reinforce the importance of assessing reservoir ecological conditions at several scales. The study of land use, littoral zone physical habitat characteristics, water quality, and assemblage structure set the ground for proposing actions to rehabilitate and conserve aquatic ecosystems. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 |
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=S1676-06032015000100103 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000100103 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1676-06032015006114 |
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 Virtual da Biodiversidade | BIOTA - FAPESP |
publisher.none.fl_str_mv |
Instituto Virtual da Biodiversidade | BIOTA - FAPESP |
dc.source.none.fl_str_mv |
Biota Neotropica v.15 n.1 2015 reponame:Biota Neotropica instname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP) instacron:BIOTA - FAPESP |
instname_str |
Instituto Virtual da Biodiversidade (BIOTA-FAPESP) |
instacron_str |
BIOTA - FAPESP |
institution |
BIOTA - FAPESP |
reponame_str |
Biota Neotropica |
collection |
Biota Neotropica |
repository.name.fl_str_mv |
Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP) |
repository.mail.fl_str_mv |
||juliosa@unifap.br |
_version_ |
1754575900035252224 |