Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Limnologica Brasiliensia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300005 |
Resumo: | AIM: This paper examines the effect of the extreme water level change in 2009 on the structure and diversity of the phytoplankton communities in lakes of the Lower Amazon Floodplain, and compares it to phytoplankton community structure data reported in the literature for 2002 and 2003 high water periods, closer to the normal hydrological conditions. METHODS: Sub-surface integrated water samples for phytoplankton and chlorophyll-a analyses were collected during high and low water phases in 2009. Water temperature (°C), pH, turbidity (NTU) and electrical conductivity (µS.m-1) were measured, and the Shannon diversity index was calculated. RESULTS: The results showed striking differences in taxonomic composition between phases (high and low) and also between normal (2002 and 2003) and extreme (2009) hydrological conditions, all related to the flood pulse intensity. CONCLUSIONS: Extreme water level fluctuations can result in shifts in phytoplankton community structure and diversity. This work represents a valuable contribution to phytoplankton research since presents the community structure under extreme hydrological events in the Amazon floodplain. |
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Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakesphytoplanktonAmazon floodplainextreme hydrological eventsAIM: This paper examines the effect of the extreme water level change in 2009 on the structure and diversity of the phytoplankton communities in lakes of the Lower Amazon Floodplain, and compares it to phytoplankton community structure data reported in the literature for 2002 and 2003 high water periods, closer to the normal hydrological conditions. METHODS: Sub-surface integrated water samples for phytoplankton and chlorophyll-a analyses were collected during high and low water phases in 2009. Water temperature (°C), pH, turbidity (NTU) and electrical conductivity (µS.m-1) were measured, and the Shannon diversity index was calculated. RESULTS: The results showed striking differences in taxonomic composition between phases (high and low) and also between normal (2002 and 2003) and extreme (2009) hydrological conditions, all related to the flood pulse intensity. CONCLUSIONS: Extreme water level fluctuations can result in shifts in phytoplankton community structure and diversity. This work represents a valuable contribution to phytoplankton research since presents the community structure under extreme hydrological events in the Amazon floodplain.Associação Brasileira de Limnologia2011-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300005Acta Limnologica Brasiliensia v.23 n.3 2011reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/S2179-975X2012005000001info:eu-repo/semantics/openAccessCasali,SimoneCalijuri,Maria do CarmoBarbarisi,BernardRenó,Vivian FróesAffonso,Adriana GomesBarbosa,CláudioSilva,Thiago Sanna FreireNovo,Evlyn Márcia Leão de Moraeseng2012-04-19T00:00:00Zoai:scielo:S2179-975X2011000300005Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2012-04-19T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false |
dc.title.none.fl_str_mv |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
title |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
spellingShingle |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes Casali,Simone phytoplankton Amazon floodplain extreme hydrological events |
title_short |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
title_full |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
title_fullStr |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
title_full_unstemmed |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
title_sort |
Impact of the 2009 extreme water level variation on phytoplankton community structure in Lower Amazon floodplain lakes |
author |
Casali,Simone |
author_facet |
Casali,Simone Calijuri,Maria do Carmo Barbarisi,Bernard Renó,Vivian Fróes Affonso,Adriana Gomes Barbosa,Cláudio Silva,Thiago Sanna Freire Novo,Evlyn Márcia Leão de Moraes |
author_role |
author |
author2 |
Calijuri,Maria do Carmo Barbarisi,Bernard Renó,Vivian Fróes Affonso,Adriana Gomes Barbosa,Cláudio Silva,Thiago Sanna Freire Novo,Evlyn Márcia Leão de Moraes |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Casali,Simone Calijuri,Maria do Carmo Barbarisi,Bernard Renó,Vivian Fróes Affonso,Adriana Gomes Barbosa,Cláudio Silva,Thiago Sanna Freire Novo,Evlyn Márcia Leão de Moraes |
dc.subject.por.fl_str_mv |
phytoplankton Amazon floodplain extreme hydrological events |
topic |
phytoplankton Amazon floodplain extreme hydrological events |
description |
AIM: This paper examines the effect of the extreme water level change in 2009 on the structure and diversity of the phytoplankton communities in lakes of the Lower Amazon Floodplain, and compares it to phytoplankton community structure data reported in the literature for 2002 and 2003 high water periods, closer to the normal hydrological conditions. METHODS: Sub-surface integrated water samples for phytoplankton and chlorophyll-a analyses were collected during high and low water phases in 2009. Water temperature (°C), pH, turbidity (NTU) and electrical conductivity (µS.m-1) were measured, and the Shannon diversity index was calculated. RESULTS: The results showed striking differences in taxonomic composition between phases (high and low) and also between normal (2002 and 2003) and extreme (2009) hydrological conditions, all related to the flood pulse intensity. CONCLUSIONS: Extreme water level fluctuations can result in shifts in phytoplankton community structure and diversity. This work represents a valuable contribution to phytoplankton research since presents the community structure under extreme hydrological events in the Amazon floodplain. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-09-01 |
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=S2179-975X2011000300005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2011000300005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S2179-975X2012005000001 |
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 |
Associação Brasileira de Limnologia |
publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
dc.source.none.fl_str_mv |
Acta Limnologica Brasiliensia v.23 n.3 2011 reponame:Acta Limnologica Brasiliensia (Online) instname:Associação Brasileira de Limnologia (ABL) instacron:ABL |
instname_str |
Associação Brasileira de Limnologia (ABL) |
instacron_str |
ABL |
institution |
ABL |
reponame_str |
Acta Limnologica Brasiliensia (Online) |
collection |
Acta Limnologica Brasiliensia (Online) |
repository.name.fl_str_mv |
Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL) |
repository.mail.fl_str_mv |
||actalb@rc.unesp.br |
_version_ |
1754212636203941888 |