Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000300005 |
Resumo: | The aim of this study was to evaluate the deposition impact of dredged material from Patos lagoon estuary on a benthic macroinvertebrate assemblage structure in an adjacent coastal marine area. Nine sampling stations were chosen at random in the disposal area, and nine others in the same way in an adjacent control area. Samples were collected at a 19 m depth before sediment disposal (11 July 2000), during dredging and disposal operations (25 Oct. 2000), and three months thereafter (24 Aug. 2001). Statistical analysis indicated that sampling periods presented similar characteristics in both the control and disposal sites. Disposal of dredged sediment from Patos lagoon had no detectable detrimental effects upon macrobenthic faunal assemblage at the dumping site. This result is attributed both to adaptation of resident biota to dynamic sedimentary conditions and to the fine estuarine sediment dredged, the dispersion of which in the water column might have minimized sediment deposition and consequent damage to the benthic fauna. |
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Brazilian Journal of Biology |
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Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazildredgeenvironmental impactPatos lagooncoastal zoneThe aim of this study was to evaluate the deposition impact of dredged material from Patos lagoon estuary on a benthic macroinvertebrate assemblage structure in an adjacent coastal marine area. Nine sampling stations were chosen at random in the disposal area, and nine others in the same way in an adjacent control area. Samples were collected at a 19 m depth before sediment disposal (11 July 2000), during dredging and disposal operations (25 Oct. 2000), and three months thereafter (24 Aug. 2001). Statistical analysis indicated that sampling periods presented similar characteristics in both the control and disposal sites. Disposal of dredged sediment from Patos lagoon had no detectable detrimental effects upon macrobenthic faunal assemblage at the dumping site. This result is attributed both to adaptation of resident biota to dynamic sedimentary conditions and to the fine estuarine sediment dredged, the dispersion of which in the water column might have minimized sediment deposition and consequent damage to the benthic fauna.Instituto Internacional de Ecologia2006-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000300005Brazilian Journal of Biology v.66 n.2a 2006reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842006000300005info:eu-repo/semantics/openAccessAngonesi,L. G.Bemvenuti,C. E.Gandra,M. S.eng2006-07-17T00:00:00Zoai:scielo:S1519-69842006000300005Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2006-07-17T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
title |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
spellingShingle |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil Angonesi,L. G. dredge environmental impact Patos lagoon coastal zone |
title_short |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
title_full |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
title_fullStr |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
title_full_unstemmed |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
title_sort |
Effects of dredged sediment disposal on the coastal marine macrobenthic assemblage in Southern Brazil |
author |
Angonesi,L. G. |
author_facet |
Angonesi,L. G. Bemvenuti,C. E. Gandra,M. S. |
author_role |
author |
author2 |
Bemvenuti,C. E. Gandra,M. S. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Angonesi,L. G. Bemvenuti,C. E. Gandra,M. S. |
dc.subject.por.fl_str_mv |
dredge environmental impact Patos lagoon coastal zone |
topic |
dredge environmental impact Patos lagoon coastal zone |
description |
The aim of this study was to evaluate the deposition impact of dredged material from Patos lagoon estuary on a benthic macroinvertebrate assemblage structure in an adjacent coastal marine area. Nine sampling stations were chosen at random in the disposal area, and nine others in the same way in an adjacent control area. Samples were collected at a 19 m depth before sediment disposal (11 July 2000), during dredging and disposal operations (25 Oct. 2000), and three months thereafter (24 Aug. 2001). Statistical analysis indicated that sampling periods presented similar characteristics in both the control and disposal sites. Disposal of dredged sediment from Patos lagoon had no detectable detrimental effects upon macrobenthic faunal assemblage at the dumping site. This result is attributed both to adaptation of resident biota to dynamic sedimentary conditions and to the fine estuarine sediment dredged, the dispersion of which in the water column might have minimized sediment deposition and consequent damage to the benthic fauna. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-05-01 |
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=S1519-69842006000300005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000300005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842006000300005 |
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 Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.66 n.2a 2006 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129875935756288 |