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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
25/05/2009 |
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Data da última atualização: |
24/02/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA-FILHO, E. C.; GRISOLIA, C. K.; PAUMGARTTEN, F. J. R. |
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Afiliação: |
Eduardo Cyrino Oliveira-Filho, CPAC; Cesar Koppe Grisolia, UnB; Francisco José Roma Paumgartten, Fiocruz. |
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Título: |
Effects of endosulfan and ethanol on the reproduction of the snail Biomphalaria tenagophila: a multigeneration study. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Chemosphere, v. 75, p. 398-404, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
Endosulfan (END) is an insecticide used in agriculture and as a wood preservative. Since END is practically insoluble in water, ethanol (ETOH) is often employed as a carrier solvent to spike in the test medium in aquatic toxicity assays. In this study were investigated the effects of END and ETOH on the reproduction of the freshwater snail Biomphalaria tenagophila exposed over three successive generations. END (0, 0.001, 0.01, 0.1 mg l -1) was dissolved in the medium water using ETOH (up to 19.8 mg L -1) as carrier solvent. ETOH (19.8, 198, 1980 mg L -1) alone was tested as well. Adult snails (Fo-generation) were exposed to END and ETOH for 8 weeks. The F1-generation continued to be exposed from embryo to reproductive maturity, while their descendants (F2) were exposed until day 10 after spawning. Effects on the fecundity (8-week production of eggs and egg-masses) of mature Fo and F1 snails were evaluated. Developmental toxicity was investigated in F1, and F2 embryos. END at the highest level tested (0.1 mg L -1) inhibited egg production by Fo and F1 snails. ETOH at levels >=198 mg L -1 also reduced fecundity of Fo and F1, an effect that was apparently aggravated by exposure over successive generations. END 0.1 mh L 1- increased mortality and malformations and decreased hatching among F1 embryos. ETOH drastically reduced the proportion of hatchings among F2 embryos. The study-derived NOECs (no-observed-effect-concentrations) for END was 0.01 mg L -1 (reduction in fecundity), and for ETOH were 19.8 mh L -1 for reduction in fecundity and <19.8 mg L -1 for developmental toxicity (hatching retardation). MenosEndosulfan (END) is an insecticide used in agriculture and as a wood preservative. Since END is practically insoluble in water, ethanol (ETOH) is often employed as a carrier solvent to spike in the test medium in aquatic toxicity assays. In this study were investigated the effects of END and ETOH on the reproduction of the freshwater snail Biomphalaria tenagophila exposed over three successive generations. END (0, 0.001, 0.01, 0.1 mg l -1) was dissolved in the medium water using ETOH (up to 19.8 mg L -1) as carrier solvent. ETOH (19.8, 198, 1980 mg L -1) alone was tested as well. Adult snails (Fo-generation) were exposed to END and ETOH for 8 weeks. The F1-generation continued to be exposed from embryo to reproductive maturity, while their descendants (F2) were exposed until day 10 after spawning. Effects on the fecundity (8-week production of eggs and egg-masses) of mature Fo and F1 snails were evaluated. Developmental toxicity was investigated in F1, and F2 embryos. END at the highest level tested (0.1 mg L -1) inhibited egg production by Fo and F1 snails. ETOH at levels >=198 mg L -1 also reduced fecundity of Fo and F1, an effect that was apparently aggravated by exposure over successive generations. END 0.1 mh L 1- increased mortality and malformations and decreased hatching among F1 embryos. ETOH drastically reduced the proportion of hatchings among F2 embryos. The study-derived NOECs (no-observed-effect-concentrations) for END was 0.01 mg L -1 (reduction in fecundity),... Mostrar Tudo |
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Palavras-Chave: |
Ecotoxicologia. |
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Thesagro: |
Inseticida. |
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Categoria do assunto: |
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Marc: |
LEADER 02144naa a2200169 a 4500
001 1558319
005 2010-02-24
008 2009 bl --- 0-- u #d
100 1 $aOLIVEIRA-FILHO, E. C.
245 $aEffects of endosulfan and ethanol on the reproduction of the snail Biomphalaria tenagophila$ba multigeneration study.
260 $c2009
520 $aEndosulfan (END) is an insecticide used in agriculture and as a wood preservative. Since END is practically insoluble in water, ethanol (ETOH) is often employed as a carrier solvent to spike in the test medium in aquatic toxicity assays. In this study were investigated the effects of END and ETOH on the reproduction of the freshwater snail Biomphalaria tenagophila exposed over three successive generations. END (0, 0.001, 0.01, 0.1 mg l -1) was dissolved in the medium water using ETOH (up to 19.8 mg L -1) as carrier solvent. ETOH (19.8, 198, 1980 mg L -1) alone was tested as well. Adult snails (Fo-generation) were exposed to END and ETOH for 8 weeks. The F1-generation continued to be exposed from embryo to reproductive maturity, while their descendants (F2) were exposed until day 10 after spawning. Effects on the fecundity (8-week production of eggs and egg-masses) of mature Fo and F1 snails were evaluated. Developmental toxicity was investigated in F1, and F2 embryos. END at the highest level tested (0.1 mg L -1) inhibited egg production by Fo and F1 snails. ETOH at levels >=198 mg L -1 also reduced fecundity of Fo and F1, an effect that was apparently aggravated by exposure over successive generations. END 0.1 mh L 1- increased mortality and malformations and decreased hatching among F1 embryos. ETOH drastically reduced the proportion of hatchings among F2 embryos. The study-derived NOECs (no-observed-effect-concentrations) for END was 0.01 mg L -1 (reduction in fecundity), and for ETOH were 19.8 mh L -1 for reduction in fecundity and <19.8 mg L -1 for developmental toxicity (hatching retardation).
650 $aInseticida
653 $aEcotoxicologia
700 1 $aGRISOLIA, C. K.
700 1 $aPAUMGARTTEN, F. J. R.
773 $tChemosphere$gv. 75, p. 398-404, 2009.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
29/12/2021 |
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Data da última atualização: |
20/05/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
Santana, F. S. de; PAIXÃO, P. E. G.; CARVALHO, A. S.; SANTOS, H. L. dos; SANTOS, J. M. F.; MENESES, S. A.; MOURA, C. C.; BRITO, T. R. S.; FUJIMOTO, R. Y. |
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Afiliação: |
FABRICIO SA DE SANTANA; PETERSON E. G. PAIXÃO; AMANDA SILVA CARVALHO; HUGO LEANDRO DOS SANTOS; JÉSSICA MARIA FONTES SANTOS; SHIRLEY AVILA MENESES; CINDY CAROLINE MOURA; THAYS REIS SANTOS BRITO; RODRIGO YUDI FUJIMOTO, CPATC. |
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Título: |
Protocolo de aclimatação e quarentena para alevinos de tambaqui. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA TABULEIROS COSTEIROS, 10., 2020-2021, Aracaju. Anais... Brasília, DF: Embrapa, 2021. 112 p. Editores técnicos: Marcelo Ferreira Fernandes; Ubiratan Piovezan. |
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Páginas: |
p. 86-89. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo foi determinar o melhor tempo para aclimatação do tambaqui após transporte. Para isso alevinos de tambaqui foram transportados num percurso de 400 km. Para a simulação de transporte os peixes foram expostos em condições semelhantes às utilizadas pelos piscicultores. Após o transporte, os peixes foram submetidos a um experimento de aclimatação, onde foram avaliados diferentes tempos de aclimatação (30 min, 60 min, sem aclimatação). Anteriormente ao transporte e após os tempos de aclimatação nos tempos 1, 24, 48, 72 e 96 horas, o sangue dos peixes foi coletado por punção caudal para determinação dos valores hematológicos e bioquímicos. Os parâmetros de qualidade de água foram mensurados. Apenas lactato não apresentou interação entre os parâmetros sanguíneos. Para o tratamento 30 minutos de aclimatação, os valores de glicose e bem como os índices hematimétricos retornaram à normalidade dentro de 24 e 48 horas. Conclui-se que 30 minutos é o tempo adequado para aclimatação. |
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Thesagro: |
Alevino; Animal; Peixe; Tambaqui; Transporte. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/229785/1/Protocolo-de-aclimatacao.pdf
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Marc: |
LEADER 01970nam a2200277 a 4500
001 2138528
005 2022-05-20
008 2021 bl uuuu u00u1 u #d
100 1 $aSantana, F. S. de
245 $aProtocolo de aclimatação e quarentena para alevinos de tambaqui.$h[electronic resource]
260 $aIn: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA TABULEIROS COSTEIROS, 10., 2020-2021, Aracaju. Anais... Brasília, DF: Embrapa, 2021. 112 p. Editores técnicos: Marcelo Ferreira Fernandes; Ubiratan Piovezan.$c2021
300 $ap. 86-89.
520 $aO objetivo foi determinar o melhor tempo para aclimatação do tambaqui após transporte. Para isso alevinos de tambaqui foram transportados num percurso de 400 km. Para a simulação de transporte os peixes foram expostos em condições semelhantes às utilizadas pelos piscicultores. Após o transporte, os peixes foram submetidos a um experimento de aclimatação, onde foram avaliados diferentes tempos de aclimatação (30 min, 60 min, sem aclimatação). Anteriormente ao transporte e após os tempos de aclimatação nos tempos 1, 24, 48, 72 e 96 horas, o sangue dos peixes foi coletado por punção caudal para determinação dos valores hematológicos e bioquímicos. Os parâmetros de qualidade de água foram mensurados. Apenas lactato não apresentou interação entre os parâmetros sanguíneos. Para o tratamento 30 minutos de aclimatação, os valores de glicose e bem como os índices hematimétricos retornaram à normalidade dentro de 24 e 48 horas. Conclui-se que 30 minutos é o tempo adequado para aclimatação.
650 $aAlevino
650 $aAnimal
650 $aPeixe
650 $aTambaqui
650 $aTransporte
700 1 $aPAIXÃO, P. E. G.
700 1 $aCARVALHO, A. S.
700 1 $aSANTOS, H. L. dos
700 1 $aSANTOS, J. M. F.
700 1 $aMENESES, S. A.
700 1 $aMOURA, C. C.
700 1 $aBRITO, T. R. S.
700 1 $aFUJIMOTO, R. Y.
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