Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652
Autor(a) principal: | |
---|---|
Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum Biological Sciences |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1652 |
Resumo: | The objective of this work is to analyze the effects of salinity and wastewater on the zooplankton community of the Itanhaém river estuary, São Paulo state. Samples of zooplankton as well as physical and chemical variables of water were collected in four sites, located between the coastal line and the superior part of the estuary, including a secondary channel where wastewater is thrown without previous treatment. The samples were collected in low and high tide in winter and summer. Results showed that the estuary presents a temporal and spatial variation of physical and chemical characteristics, especially salinity, in function of the tide and seasonal variation of rain. The high values of salinity occurred in winter and high tide. Zooplankton community was adapted to the dynamic of salinity, and marine and estuarine species occurred in the low part of the estuary in winter. Although the Itanhaém river estuary has the same temporal and spatial dynamic of other estuaries, the values of salinity are low when compared with others located in the southern coast of São Paulo. Consequently, mainly oligohaline and fresh water species constitute the zooplankton community. These characteristics are due to the great drainage area of the Itanhaém river basin. The waste water modified physical and chemical characteristics of water that now presents higher concentrations of nutrients, higher values of suspended matter and lower concentrations of oxygen. It was observed a positive relation between the density of nauplii of copepods and organic pollution in this estuary |
id |
UEM-1_4c1c83cdb585bf06e9c18e1907c48014 |
---|---|
oai_identifier_str |
oai:periodicos.uem.br/ojs:article/1652 |
network_acronym_str |
UEM-1 |
network_name_str |
Acta Scientiarum Biological Sciences |
repository_id_str |
|
spelling |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652Efeito da salinidade e do esgoto orgânico sobre a comunidade zooplanctônica, com ênfase nos copépodes, do estuário do rio Itanhaém, Estado de São Paulo - DOI: 10.4025/actascibiolsci.v26i1.1652estuáriocopépodesalinidadenáupliospoluição orgânica2.01.00.00-0 Biologia GeralThe objective of this work is to analyze the effects of salinity and wastewater on the zooplankton community of the Itanhaém river estuary, São Paulo state. Samples of zooplankton as well as physical and chemical variables of water were collected in four sites, located between the coastal line and the superior part of the estuary, including a secondary channel where wastewater is thrown without previous treatment. The samples were collected in low and high tide in winter and summer. Results showed that the estuary presents a temporal and spatial variation of physical and chemical characteristics, especially salinity, in function of the tide and seasonal variation of rain. The high values of salinity occurred in winter and high tide. Zooplankton community was adapted to the dynamic of salinity, and marine and estuarine species occurred in the low part of the estuary in winter. Although the Itanhaém river estuary has the same temporal and spatial dynamic of other estuaries, the values of salinity are low when compared with others located in the southern coast of São Paulo. Consequently, mainly oligohaline and fresh water species constitute the zooplankton community. These characteristics are due to the great drainage area of the Itanhaém river basin. The waste water modified physical and chemical characteristics of water that now presents higher concentrations of nutrients, higher values of suspended matter and lower concentrations of oxygen. It was observed a positive relation between the density of nauplii of copepods and organic pollution in this estuaryA partir da hipótese de que a comunidade zooplanctônica é influenciada pela salinidade e pelo lançamento de esgotos orgânicos, o objetivo deste trabalho é analisar a influência desses fatores sobre essa comunidade no estuário do rio Itanhaém, Estado de São Paulo. Foram realizadas amostragens do zooplâncton e de variáveis físicas e químicas da água em quatro estações de coleta, localizadas entre a linha de costa e a parte superior do estuário, incluindo um canal secundário que recebe esgotos domésticos sem tratamento prévio. As amostragens foram realizadas em baixa-mar e preamar no inverno e verão. Os resultados mostraram que este estuário possui uma variação temporal de características físicas e químicas, especialmente salinidade, devido à variação de marés e à variação sazonal de pluviosidade. Os maiores valores de salinidade foram observados no inverno e preamar. A comunidade zooplanctônica respondeu às variações de salinidade, com espécies adaptadas aos maiores valores de salinidade na parte baixa do estuário, no inverno. Embora o estuário do rio Itanhaém possua a mesma dinâmica temporal e espacial de outros estuários, os valores de salinidade são bastante reduzidos em comparação com outros estuários da costa sul paulista. Em conseqüência, a comunidade zooplanctônica foi constituída principalmente por organismos oligoalinos e de água doce. Essas características se devem à maior área de drenagem da bacia do rio Itanhaém quando comparada com a área dos outros rios costeiros do Estado de São Paulo. O esgoto orgânico modificou as características físicas e químicas da água, que possuiu maior concentração de nutrientes, maior quantidade de material em suspensão e menor concentração de oxigênio. Foi observada uma relação positiva entre densidade de náuplios de copépodes e poluição orgânica no estuário do rio ItanhaémUniversidade Estadual De Maringá2008-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/165210.4025/actascibiolsci.v26i1.1652Acta Scientiarum. Biological Sciences; Vol 26 No 1 (2004); 9-17Acta Scientiarum. Biological Sciences; v. 26 n. 1 (2004); 9-171807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1652/994Pereira, Paulo Eduardo SouzaCamargo, Antonio Fernando Monteiroinfo:eu-repo/semantics/openAccess2022-11-23T17:33:14Zoai:periodicos.uem.br/ojs:article/1652Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:14Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 Efeito da salinidade e do esgoto orgânico sobre a comunidade zooplanctônica, com ênfase nos copépodes, do estuário do rio Itanhaém, Estado de São Paulo - DOI: 10.4025/actascibiolsci.v26i1.1652 |
title |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 |
spellingShingle |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 Pereira, Paulo Eduardo Souza estuário copépode salinidade náuplios poluição orgânica 2.01.00.00-0 Biologia Geral |
title_short |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 |
title_full |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 |
title_fullStr |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 |
title_full_unstemmed |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 |
title_sort |
Effects of salinity and organic wastes on zooplancton community, with emphasis on copepodes, in the Itanhaém river estuary, São Paulo state - DOI: 10.4025/actascibiolsci.v26i1.1652 |
author |
Pereira, Paulo Eduardo Souza |
author_facet |
Pereira, Paulo Eduardo Souza Camargo, Antonio Fernando Monteiro |
author_role |
author |
author2 |
Camargo, Antonio Fernando Monteiro |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Pereira, Paulo Eduardo Souza Camargo, Antonio Fernando Monteiro |
dc.subject.por.fl_str_mv |
estuário copépode salinidade náuplios poluição orgânica 2.01.00.00-0 Biologia Geral |
topic |
estuário copépode salinidade náuplios poluição orgânica 2.01.00.00-0 Biologia Geral |
description |
The objective of this work is to analyze the effects of salinity and wastewater on the zooplankton community of the Itanhaém river estuary, São Paulo state. Samples of zooplankton as well as physical and chemical variables of water were collected in four sites, located between the coastal line and the superior part of the estuary, including a secondary channel where wastewater is thrown without previous treatment. The samples were collected in low and high tide in winter and summer. Results showed that the estuary presents a temporal and spatial variation of physical and chemical characteristics, especially salinity, in function of the tide and seasonal variation of rain. The high values of salinity occurred in winter and high tide. Zooplankton community was adapted to the dynamic of salinity, and marine and estuarine species occurred in the low part of the estuary in winter. Although the Itanhaém river estuary has the same temporal and spatial dynamic of other estuaries, the values of salinity are low when compared with others located in the southern coast of São Paulo. Consequently, mainly oligohaline and fresh water species constitute the zooplankton community. These characteristics are due to the great drainage area of the Itanhaém river basin. The waste water modified physical and chemical characteristics of water that now presents higher concentrations of nutrients, higher values of suspended matter and lower concentrations of oxygen. It was observed a positive relation between the density of nauplii of copepods and organic pollution in this estuary |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1652 10.4025/actascibiolsci.v26i1.1652 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1652 |
identifier_str_mv |
10.4025/actascibiolsci.v26i1.1652 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1652/994 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Biological Sciences; Vol 26 No 1 (2004); 9-17 Acta Scientiarum. Biological Sciences; v. 26 n. 1 (2004); 9-17 1807-863X 1679-9283 reponame:Acta Scientiarum Biological Sciences instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum Biological Sciences |
collection |
Acta Scientiarum Biological Sciences |
repository.name.fl_str_mv |
Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actabiol@uem.br |
_version_ |
1799317392541614080 |