Cladocerans (Branchiopoda) of a tropical estuary in Brazil
Main Author: | |
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Publication Date: | 2005 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Brazilian Journal of Biology |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842005000100015 |
Summary: | The study was conducted in the Capibaribe river estuary in Recife (Brazil) to assess the role played by cladocerans in a eutrophic environment. Samplings were carried out monthly at 4 fixed stations along the estuary from July 1987 to June 1988. Collections were made with a plankton net of 65 micrometers mesh size. Six cladocerans species were registered: Penilia avirostris, Diaphanosoma spinulosum, Chydorus barroisi, Ceriodaphnia rigaudi, Ilyocryptus spinifer, and Moina micrura. The most frequent species was Moina micrura with 49%. The only true marine species was Penilia avirostris, which was registered at station 1 (close to the river mouth), during high and low tide and in the dry season. The Cladocera average density decreased from 329 ind.m-3 (August 1987, high tide) to 2 ind.m-3 (March 1988, high tide) due to the high load of organic and chemical pollution received by the estuary. At all stations, D. spinulosum, M. micrura, and C. barroisi occurred with a wide distribution, mainly during the rainy season. C. rigaudi and I. spinifer were rare, occurring only during the rainy season. Cladocerans played an important role in the food webs of the plankton community of the Capibaribe tropical estuary and the dominance of a few small species indicated a hypereutrophic environment. A high level of disturbance was indicated by the decline in diversity of specialized species and the increase in abundance of opportunistic species like M. micrura. |
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Cladocerans (Branchiopoda) of a tropical estuary in Brazilcladoceransindicatorsenvironmental qualityestuarinezooplanktonThe study was conducted in the Capibaribe river estuary in Recife (Brazil) to assess the role played by cladocerans in a eutrophic environment. Samplings were carried out monthly at 4 fixed stations along the estuary from July 1987 to June 1988. Collections were made with a plankton net of 65 micrometers mesh size. Six cladocerans species were registered: Penilia avirostris, Diaphanosoma spinulosum, Chydorus barroisi, Ceriodaphnia rigaudi, Ilyocryptus spinifer, and Moina micrura. The most frequent species was Moina micrura with 49%. The only true marine species was Penilia avirostris, which was registered at station 1 (close to the river mouth), during high and low tide and in the dry season. The Cladocera average density decreased from 329 ind.m-3 (August 1987, high tide) to 2 ind.m-3 (March 1988, high tide) due to the high load of organic and chemical pollution received by the estuary. At all stations, D. spinulosum, M. micrura, and C. barroisi occurred with a wide distribution, mainly during the rainy season. C. rigaudi and I. spinifer were rare, occurring only during the rainy season. Cladocerans played an important role in the food webs of the plankton community of the Capibaribe tropical estuary and the dominance of a few small species indicated a hypereutrophic environment. A high level of disturbance was indicated by the decline in diversity of specialized species and the increase in abundance of opportunistic species like M. micrura.Instituto Internacional de Ecologia2005-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842005000100015Brazilian Journal of Biology v.65 n.1 2005reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842005000100015info:eu-repo/semantics/openAccessParanaguá,M. NNeumann-Leitão,SNogueira-Paranhos,J. DSilva,T. A.Matsumura-Tundisi,T.eng2005-11-16T00:00:00Zoai:scielo:S1519-69842005000100015Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2005-11-16T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
title |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
spellingShingle |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil Paranaguá,M. N cladocerans indicators environmental quality estuarine zooplankton |
title_short |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
title_full |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
title_fullStr |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
title_full_unstemmed |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
title_sort |
Cladocerans (Branchiopoda) of a tropical estuary in Brazil |
author |
Paranaguá,M. N |
author_facet |
Paranaguá,M. N Neumann-Leitão,S Nogueira-Paranhos,J. D Silva,T. A. Matsumura-Tundisi,T. |
author_role |
author |
author2 |
Neumann-Leitão,S Nogueira-Paranhos,J. D Silva,T. A. Matsumura-Tundisi,T. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Paranaguá,M. N Neumann-Leitão,S Nogueira-Paranhos,J. D Silva,T. A. Matsumura-Tundisi,T. |
dc.subject.por.fl_str_mv |
cladocerans indicators environmental quality estuarine zooplankton |
topic |
cladocerans indicators environmental quality estuarine zooplankton |
description |
The study was conducted in the Capibaribe river estuary in Recife (Brazil) to assess the role played by cladocerans in a eutrophic environment. Samplings were carried out monthly at 4 fixed stations along the estuary from July 1987 to June 1988. Collections were made with a plankton net of 65 micrometers mesh size. Six cladocerans species were registered: Penilia avirostris, Diaphanosoma spinulosum, Chydorus barroisi, Ceriodaphnia rigaudi, Ilyocryptus spinifer, and Moina micrura. The most frequent species was Moina micrura with 49%. The only true marine species was Penilia avirostris, which was registered at station 1 (close to the river mouth), during high and low tide and in the dry season. The Cladocera average density decreased from 329 ind.m-3 (August 1987, high tide) to 2 ind.m-3 (March 1988, high tide) due to the high load of organic and chemical pollution received by the estuary. At all stations, D. spinulosum, M. micrura, and C. barroisi occurred with a wide distribution, mainly during the rainy season. C. rigaudi and I. spinifer were rare, occurring only during the rainy season. Cladocerans played an important role in the food webs of the plankton community of the Capibaribe tropical estuary and the dominance of a few small species indicated a hypereutrophic environment. A high level of disturbance was indicated by the decline in diversity of specialized species and the increase in abundance of opportunistic species like M. micrura. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-02-01 |
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=S1519-69842005000100015 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842005000100015 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842005000100015 |
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.65 n.1 2005 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_ |
1752129875519471616 |