Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Anais da Academia Brasileira de Ciências (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200005 |
Resumo: | The main purpose of this study was to investigate the seasonal variation of copepod community structure during the months of July, September and November 2003 (dry season) and January, March and May 2004 (rainy season) in the Curuçá estuary, northern Brazil. Samples were collected during neap tides via gentle 200µm mesh net tows from a small powerboat. Measurements of surface water conductivity were accomplished in situ using an electronic conductivimeter and salinity was later obtained through the transformation of the conductivity values. Salinity varied seasonally from 7.2 ± 0.1 to 39.2 ± 1.8 (mean ± standard deviation) and was influenced mainly by differences in the amount of rainfall between the studied sampling seasons. In total, 30 Copepoda taxa were identified and Acartia tonsa comprised the most representative species throughout the entire studied period followed by Acartia lilljeborgii, Subeucalanus pileatus and Paracalanus quasimodo. In the present study, the density values, ecological indexes and copepod species dominance presented a clear seasonal pattern, showing that the studied area may be considered seasonally heterogeneous in relation to the investigated parameters. |
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Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazilcopepodsalinityecological indexesseasonal changesBrazilThe main purpose of this study was to investigate the seasonal variation of copepod community structure during the months of July, September and November 2003 (dry season) and January, March and May 2004 (rainy season) in the Curuçá estuary, northern Brazil. Samples were collected during neap tides via gentle 200µm mesh net tows from a small powerboat. Measurements of surface water conductivity were accomplished in situ using an electronic conductivimeter and salinity was later obtained through the transformation of the conductivity values. Salinity varied seasonally from 7.2 ± 0.1 to 39.2 ± 1.8 (mean ± standard deviation) and was influenced mainly by differences in the amount of rainfall between the studied sampling seasons. In total, 30 Copepoda taxa were identified and Acartia tonsa comprised the most representative species throughout the entire studied period followed by Acartia lilljeborgii, Subeucalanus pileatus and Paracalanus quasimodo. In the present study, the density values, ecological indexes and copepod species dominance presented a clear seasonal pattern, showing that the studied area may be considered seasonally heterogeneous in relation to the investigated parameters.Academia Brasileira de Ciências2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200005Anais da Academia Brasileira de Ciências v.81 n.2 2009reponame:Anais da Academia Brasileira de Ciências (Online)instname:Academia Brasileira de Ciências (ABC)instacron:ABC10.1590/S0001-37652009000200005info:eu-repo/semantics/openAccessMagalhães,AndréLeite,Natália da R.Silva,João G.S.Pereira,Luci C.C.Costa,Rauquírio M. daeng2009-05-26T00:00:00Zoai:scielo:S0001-37652009000200005Revistahttp://www.scielo.br/aabchttps://old.scielo.br/oai/scielo-oai.php||aabc@abc.org.br1678-26900001-3765opendoar:2009-05-26T00:00Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC)false |
dc.title.none.fl_str_mv |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
title |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
spellingShingle |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil Magalhães,André copepod salinity ecological indexes seasonal changes Brazil |
title_short |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
title_full |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
title_fullStr |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
title_full_unstemmed |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
title_sort |
Seasonal variation in the copepod community structure from a tropical Amazon estuary, Northern Brazil |
author |
Magalhães,André |
author_facet |
Magalhães,André Leite,Natália da R. Silva,João G.S. Pereira,Luci C.C. Costa,Rauquírio M. da |
author_role |
author |
author2 |
Leite,Natália da R. Silva,João G.S. Pereira,Luci C.C. Costa,Rauquírio M. da |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Magalhães,André Leite,Natália da R. Silva,João G.S. Pereira,Luci C.C. Costa,Rauquírio M. da |
dc.subject.por.fl_str_mv |
copepod salinity ecological indexes seasonal changes Brazil |
topic |
copepod salinity ecological indexes seasonal changes Brazil |
description |
The main purpose of this study was to investigate the seasonal variation of copepod community structure during the months of July, September and November 2003 (dry season) and January, March and May 2004 (rainy season) in the Curuçá estuary, northern Brazil. Samples were collected during neap tides via gentle 200µm mesh net tows from a small powerboat. Measurements of surface water conductivity were accomplished in situ using an electronic conductivimeter and salinity was later obtained through the transformation of the conductivity values. Salinity varied seasonally from 7.2 ± 0.1 to 39.2 ± 1.8 (mean ± standard deviation) and was influenced mainly by differences in the amount of rainfall between the studied sampling seasons. In total, 30 Copepoda taxa were identified and Acartia tonsa comprised the most representative species throughout the entire studied period followed by Acartia lilljeborgii, Subeucalanus pileatus and Paracalanus quasimodo. In the present study, the density values, ecological indexes and copepod species dominance presented a clear seasonal pattern, showing that the studied area may be considered seasonally heterogeneous in relation to the investigated parameters. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-06-01 |
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=S0001-37652009000200005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652009000200005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0001-37652009000200005 |
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 |
Academia Brasileira de Ciências |
publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
dc.source.none.fl_str_mv |
Anais da Academia Brasileira de Ciências v.81 n.2 2009 reponame:Anais da Academia Brasileira de Ciências (Online) instname:Academia Brasileira de Ciências (ABC) instacron:ABC |
instname_str |
Academia Brasileira de Ciências (ABC) |
instacron_str |
ABC |
institution |
ABC |
reponame_str |
Anais da Academia Brasileira de Ciências (Online) |
collection |
Anais da Academia Brasileira de Ciências (Online) |
repository.name.fl_str_mv |
Anais da Academia Brasileira de Ciências (Online) - Academia Brasileira de Ciências (ABC) |
repository.mail.fl_str_mv |
||aabc@abc.org.br |
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1754302857251651584 |