Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna

Detalhes bibliográficos
Autor(a) principal: Palma, Patrícia
Data de Publicação: 2009
Outros Autores: Palma, V., Fernandes, R., Soares, A., Barbosa, I.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/20.500.12207/505
Resumo: Endosulfan sulphate is the transformation product of endosulfan and it is the most frequent form of surface water contamination with endosulfan. The aim of this study was to evaluate the possible effects promoted by endosulfan sulphate in changes on the life cycle, embryo development and sex differentiation of Daphnia magna. The endpoints used were moulting frequency, fecundity, growth, developmentally abnormalities and sexual differentiation. The nominal concentrations of endosulfan sulphate tested ranged from 9.2 to 458.7 μg L−1. Endosulfan sulphate promoted a significant decrease of the offspring number in all concentrations. Results showed a reduction of the size of females, together with a decrease in moulting frequency. Furthermore, an increase in embryo deformities was observed at all concentrations tested. Above a concentration of 91.7 μg L−1 there was an increased production of males. The results suggest that endosulfan sulphate interferes with the life cycle and sex determination of the crustacean D. magna.
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spelling Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magnaDaphnia magnaEndosulfan sulphateEmbryo developmentReproductionMoulting frequencySex ratioEndosulfan sulphate is the transformation product of endosulfan and it is the most frequent form of surface water contamination with endosulfan. The aim of this study was to evaluate the possible effects promoted by endosulfan sulphate in changes on the life cycle, embryo development and sex differentiation of Daphnia magna. The endpoints used were moulting frequency, fecundity, growth, developmentally abnormalities and sexual differentiation. The nominal concentrations of endosulfan sulphate tested ranged from 9.2 to 458.7 μg L−1. Endosulfan sulphate promoted a significant decrease of the offspring number in all concentrations. Results showed a reduction of the size of females, together with a decrease in moulting frequency. Furthermore, an increase in embryo deformities was observed at all concentrations tested. Above a concentration of 91.7 μg L−1 there was an increased production of males. The results suggest that endosulfan sulphate interferes with the life cycle and sex determination of the crustacean D. magna.2013-10-16T16:08:19Z2009-10-16T00:00:00Z2009-09-01T00:00:00Z2009-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/20.500.12207/505engmetadata only accessinfo:eu-repo/semantics/openAccessPalma, PatríciaPalma, V.Fernandes, R.Soares, A.Barbosa, I.reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-23T07:46:25Zoai:repositorio.ipbeja.pt:20.500.12207/505Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T14:58:13.421390Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
title Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
spellingShingle Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
Palma, Patrícia
Daphnia magna
Endosulfan sulphate
Embryo development
Reproduction
Moulting frequency
Sex ratio
title_short Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
title_full Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
title_fullStr Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
title_full_unstemmed Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
title_sort Endosulfan sulphate interferes with reproduction, embryonic development and sex differentiation in Daphnia magna
author Palma, Patrícia
author_facet Palma, Patrícia
Palma, V.
Fernandes, R.
Soares, A.
Barbosa, I.
author_role author
author2 Palma, V.
Fernandes, R.
Soares, A.
Barbosa, I.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Palma, Patrícia
Palma, V.
Fernandes, R.
Soares, A.
Barbosa, I.
dc.subject.por.fl_str_mv Daphnia magna
Endosulfan sulphate
Embryo development
Reproduction
Moulting frequency
Sex ratio
topic Daphnia magna
Endosulfan sulphate
Embryo development
Reproduction
Moulting frequency
Sex ratio
description Endosulfan sulphate is the transformation product of endosulfan and it is the most frequent form of surface water contamination with endosulfan. The aim of this study was to evaluate the possible effects promoted by endosulfan sulphate in changes on the life cycle, embryo development and sex differentiation of Daphnia magna. The endpoints used were moulting frequency, fecundity, growth, developmentally abnormalities and sexual differentiation. The nominal concentrations of endosulfan sulphate tested ranged from 9.2 to 458.7 μg L−1. Endosulfan sulphate promoted a significant decrease of the offspring number in all concentrations. Results showed a reduction of the size of females, together with a decrease in moulting frequency. Furthermore, an increase in embryo deformities was observed at all concentrations tested. Above a concentration of 91.7 μg L−1 there was an increased production of males. The results suggest that endosulfan sulphate interferes with the life cycle and sex determination of the crustacean D. magna.
publishDate 2009
dc.date.none.fl_str_mv 2009-10-16T00:00:00Z
2009-09-01T00:00:00Z
2009-09-01T00:00:00Z
2013-10-16T16:08:19Z
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