The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)

Detalhes bibliográficos
Autor(a) principal: Deliberalli,Wanessa
Data de Publicação: 2018
Outros Autores: Cansian,Rogério L., Pereira,Albanin A. M., Loureiro,Rafael C., Hepp,Luiz U., Restello,Rozane M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Zoologia (Curitiba. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100316
Resumo: ABSTRACT Streams in urban areas are strongly impacted by the input of organic matter and metals, for instance copper (Cu) and zinc (Zn). These metals are essential for the aquatic biota, but when absorbed in excess they are toxic. In Chiro nomidae larvae, the deleterious effects of heavy metals can be ascertained by analyzing the morphological deformities of the larval mentum, a structure of the oral cavity. In this study, we evaluated I) the bioavailability of Cu and Zn in urban stream sediments and II) the relationship between Cu and Zn concentrations and the incidence of deformities in the mentum of Chironomus larvae. Chironomid flies were collected from four locations in two streams at an urban area in southern Brazil. They were identified and the incidence of deformities in the mentum was quantified. Sediment samples were collected at the same locations where larvae were collected, to quantify the bioavailable fractions of Cu and Zn. The concentrations of Cu in the sediment were similar between the collection sites. However, Zn concentrations varied among sites, being greater in the stretch directly influenced by the input of the organic waste. In total, 2,895 Chironomid larvae were collected. The incidence of deformities in the mentum was above 30% and was correlated with the concentrations of Cu (r = 0.68) and Zn (r = 0.87). This correlation indicates that the municipal waste that is thrown into the city’s streams has influenced the occurrence of deformities.
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spelling The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)Biomonitoringcopperenvironmental qualitymentumzincABSTRACT Streams in urban areas are strongly impacted by the input of organic matter and metals, for instance copper (Cu) and zinc (Zn). These metals are essential for the aquatic biota, but when absorbed in excess they are toxic. In Chiro nomidae larvae, the deleterious effects of heavy metals can be ascertained by analyzing the morphological deformities of the larval mentum, a structure of the oral cavity. In this study, we evaluated I) the bioavailability of Cu and Zn in urban stream sediments and II) the relationship between Cu and Zn concentrations and the incidence of deformities in the mentum of Chironomus larvae. Chironomid flies were collected from four locations in two streams at an urban area in southern Brazil. They were identified and the incidence of deformities in the mentum was quantified. Sediment samples were collected at the same locations where larvae were collected, to quantify the bioavailable fractions of Cu and Zn. The concentrations of Cu in the sediment were similar between the collection sites. However, Zn concentrations varied among sites, being greater in the stretch directly influenced by the input of the organic waste. In total, 2,895 Chironomid larvae were collected. The incidence of deformities in the mentum was above 30% and was correlated with the concentrations of Cu (r = 0.68) and Zn (r = 0.87). This correlation indicates that the municipal waste that is thrown into the city’s streams has influenced the occurrence of deformities.Sociedade Brasileira de Zoologia2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100316Zoologia (Curitiba) v.35 2018reponame:Zoologia (Curitiba. Online)instname:Sociedade Brasileira de Zoologiainstacron:SBZ10.3897/zoologia.35.e12947info:eu-repo/semantics/openAccessDeliberalli,WanessaCansian,Rogério L.Pereira,Albanin A. M.Loureiro,Rafael C.Hepp,Luiz U.Restello,Rozane M.eng2018-05-25T00:00:00Zoai:scielo:S1984-46702018000100316Revistahttp://www.scielo.br/zoolONGhttps://old.scielo.br/oai/scielo-oai.phpsbz@sbzoologia.org.br1984-46891984-4670opendoar:2018-05-25T00:00Zoologia (Curitiba. Online) - Sociedade Brasileira de Zoologiafalse
dc.title.none.fl_str_mv The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
title The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
spellingShingle The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
Deliberalli,Wanessa
Biomonitoring
copper
environmental quality
mentum
zinc
title_short The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
title_full The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
title_fullStr The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
title_full_unstemmed The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
title_sort The effects of heavy metals on the incidence of morphological deformities in Chironomidae (Diptera)
author Deliberalli,Wanessa
author_facet Deliberalli,Wanessa
Cansian,Rogério L.
Pereira,Albanin A. M.
Loureiro,Rafael C.
Hepp,Luiz U.
Restello,Rozane M.
author_role author
author2 Cansian,Rogério L.
Pereira,Albanin A. M.
Loureiro,Rafael C.
Hepp,Luiz U.
Restello,Rozane M.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Deliberalli,Wanessa
Cansian,Rogério L.
Pereira,Albanin A. M.
Loureiro,Rafael C.
Hepp,Luiz U.
Restello,Rozane M.
dc.subject.por.fl_str_mv Biomonitoring
copper
environmental quality
mentum
zinc
topic Biomonitoring
copper
environmental quality
mentum
zinc
description ABSTRACT Streams in urban areas are strongly impacted by the input of organic matter and metals, for instance copper (Cu) and zinc (Zn). These metals are essential for the aquatic biota, but when absorbed in excess they are toxic. In Chiro nomidae larvae, the deleterious effects of heavy metals can be ascertained by analyzing the morphological deformities of the larval mentum, a structure of the oral cavity. In this study, we evaluated I) the bioavailability of Cu and Zn in urban stream sediments and II) the relationship between Cu and Zn concentrations and the incidence of deformities in the mentum of Chironomus larvae. Chironomid flies were collected from four locations in two streams at an urban area in southern Brazil. They were identified and the incidence of deformities in the mentum was quantified. Sediment samples were collected at the same locations where larvae were collected, to quantify the bioavailable fractions of Cu and Zn. The concentrations of Cu in the sediment were similar between the collection sites. However, Zn concentrations varied among sites, being greater in the stretch directly influenced by the input of the organic waste. In total, 2,895 Chironomid larvae were collected. The incidence of deformities in the mentum was above 30% and was correlated with the concentrations of Cu (r = 0.68) and Zn (r = 0.87). This correlation indicates that the municipal waste that is thrown into the city’s streams has influenced the occurrence of deformities.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
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=S1984-46702018000100316
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100316
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.3897/zoologia.35.e12947
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 Sociedade Brasileira de Zoologia
publisher.none.fl_str_mv Sociedade Brasileira de Zoologia
dc.source.none.fl_str_mv Zoologia (Curitiba) v.35 2018
reponame:Zoologia (Curitiba. Online)
instname:Sociedade Brasileira de Zoologia
instacron:SBZ
instname_str Sociedade Brasileira de Zoologia
instacron_str SBZ
institution SBZ
reponame_str Zoologia (Curitiba. Online)
collection Zoologia (Curitiba. Online)
repository.name.fl_str_mv Zoologia (Curitiba. Online) - Sociedade Brasileira de Zoologia
repository.mail.fl_str_mv sbz@sbzoologia.org.br
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