Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production
- Autores
- Carriquiriborde, Pedro; Díaz, Juan; Mugni, Hernan Diego; Bonetto, Carlos Alberto; Ronco, Alicia Estela
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The impact of biotech-soybean technology on freshwater ecosystems is being evaluated in the Rolling Pampas region, Argentina. The effect of cypermethrin, the main soybean insecticide, on low-order temperate-stream fish populations was investigated for two consecutive crop cycles under field-use conditions in biotech-soybean production. Cypermethrin was unable to induce mortality or behavioral effects on any of the fish species resident in a first-order stream across a crop field (pulsed acute exposure scenario) sprayed according to conventional practices. No spatially or temporally dependent effects were observed on population parameters (size-class structure, abundance, survival, sex and immature/mature ratio, condition factor) of resident or caged Cnesterodon decemmaculatus after spraying or rainfall events, not even one year after, at the beginning of the next crop cycle. Although cypermethrin was “very highly toxic” to C. decemmaculatus in laboratory water (96 h-LC50 = 0.43 μg/l), its toxicity was reduced in filtered (78%) and unfiltered (92%) stream water. Changes in LC50 values were mainly correlated with the OC content of each water fraction (r2 = 0.99; p < 0.01; n = 9), showing that both DOC and TOC contributed proportionally to toxicity reduction. Protective effects of stream water (12-fold reduction LC50 values) explained the lack of effects on fish populations in the field, despite cypermethrin water concentrations after spraying reached values comparable with the 96 h-LC50. Therefore, cypermethrin under field-use conditions in transgenic-soybean production represents a low risk of acute exposure for fish populations inhabiting low-order temperate-streams rich in TOC. The relationship between LC50 and TOC could be a convenient way to improve risk estimation based on laboratory toxicity testing.
Fil: Carriquiriborde, Pedro. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Díaz, Juan. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mugni, Hernan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Bonetto, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina
Fil: Ronco, Alicia Estela. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
Cypermethrin
Transgenic-Soybean Crops
Temperate-Plains Streams
Cnesterodon Decemmaculatus
Field-Laboratory Comparison
Organic Carbon - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/30735
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Impact of cypermethrin on stream fish populations under field-use in biotech-soybean productionCarriquiriborde, PedroDíaz, JuanMugni, Hernan DiegoBonetto, Carlos AlbertoRonco, Alicia EstelaCypermethrinTransgenic-Soybean CropsTemperate-Plains StreamsCnesterodon DecemmaculatusField-Laboratory ComparisonOrganic Carbonhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The impact of biotech-soybean technology on freshwater ecosystems is being evaluated in the Rolling Pampas region, Argentina. The effect of cypermethrin, the main soybean insecticide, on low-order temperate-stream fish populations was investigated for two consecutive crop cycles under field-use conditions in biotech-soybean production. Cypermethrin was unable to induce mortality or behavioral effects on any of the fish species resident in a first-order stream across a crop field (pulsed acute exposure scenario) sprayed according to conventional practices. No spatially or temporally dependent effects were observed on population parameters (size-class structure, abundance, survival, sex and immature/mature ratio, condition factor) of resident or caged Cnesterodon decemmaculatus after spraying or rainfall events, not even one year after, at the beginning of the next crop cycle. Although cypermethrin was “very highly toxic” to C. decemmaculatus in laboratory water (96 h-LC50 = 0.43 μg/l), its toxicity was reduced in filtered (78%) and unfiltered (92%) stream water. Changes in LC50 values were mainly correlated with the OC content of each water fraction (r2 = 0.99; p < 0.01; n = 9), showing that both DOC and TOC contributed proportionally to toxicity reduction. Protective effects of stream water (12-fold reduction LC50 values) explained the lack of effects on fish populations in the field, despite cypermethrin water concentrations after spraying reached values comparable with the 96 h-LC50. Therefore, cypermethrin under field-use conditions in transgenic-soybean production represents a low risk of acute exposure for fish populations inhabiting low-order temperate-streams rich in TOC. The relationship between LC50 and TOC could be a convenient way to improve risk estimation based on laboratory toxicity testing.Fil: Carriquiriborde, Pedro. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Díaz, Juan. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mugni, Hernan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaFil: Bonetto, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; ArgentinaFil: Ronco, Alicia Estela. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaPergamon-Elsevier Science Ltd.2007-04-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30735Ronco, Alicia Estela; Bonetto, Carlos Alberto; Mugni, Hernan Diego; Díaz, Juan; Carriquiriborde, Pedro; Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production; Pergamon-Elsevier Science Ltd.; Chemosphere; 68; 4; 8-4-2007; 613-6210045-6535CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2007.02.051info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0045653507003050info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:03Zoai:ri.conicet.gov.ar:11336/30735instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:43:03.908CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
title |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
spellingShingle |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production Carriquiriborde, Pedro Cypermethrin Transgenic-Soybean Crops Temperate-Plains Streams Cnesterodon Decemmaculatus Field-Laboratory Comparison Organic Carbon |
title_short |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
title_full |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
title_fullStr |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
title_full_unstemmed |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
title_sort |
Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production |
dc.creator.none.fl_str_mv |
Carriquiriborde, Pedro Díaz, Juan Mugni, Hernan Diego Bonetto, Carlos Alberto Ronco, Alicia Estela |
author |
Carriquiriborde, Pedro |
author_facet |
Carriquiriborde, Pedro Díaz, Juan Mugni, Hernan Diego Bonetto, Carlos Alberto Ronco, Alicia Estela |
author_role |
author |
author2 |
Díaz, Juan Mugni, Hernan Diego Bonetto, Carlos Alberto Ronco, Alicia Estela |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Cypermethrin Transgenic-Soybean Crops Temperate-Plains Streams Cnesterodon Decemmaculatus Field-Laboratory Comparison Organic Carbon |
topic |
Cypermethrin Transgenic-Soybean Crops Temperate-Plains Streams Cnesterodon Decemmaculatus Field-Laboratory Comparison Organic Carbon |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The impact of biotech-soybean technology on freshwater ecosystems is being evaluated in the Rolling Pampas region, Argentina. The effect of cypermethrin, the main soybean insecticide, on low-order temperate-stream fish populations was investigated for two consecutive crop cycles under field-use conditions in biotech-soybean production. Cypermethrin was unable to induce mortality or behavioral effects on any of the fish species resident in a first-order stream across a crop field (pulsed acute exposure scenario) sprayed according to conventional practices. No spatially or temporally dependent effects were observed on population parameters (size-class structure, abundance, survival, sex and immature/mature ratio, condition factor) of resident or caged Cnesterodon decemmaculatus after spraying or rainfall events, not even one year after, at the beginning of the next crop cycle. Although cypermethrin was “very highly toxic” to C. decemmaculatus in laboratory water (96 h-LC50 = 0.43 μg/l), its toxicity was reduced in filtered (78%) and unfiltered (92%) stream water. Changes in LC50 values were mainly correlated with the OC content of each water fraction (r2 = 0.99; p < 0.01; n = 9), showing that both DOC and TOC contributed proportionally to toxicity reduction. Protective effects of stream water (12-fold reduction LC50 values) explained the lack of effects on fish populations in the field, despite cypermethrin water concentrations after spraying reached values comparable with the 96 h-LC50. Therefore, cypermethrin under field-use conditions in transgenic-soybean production represents a low risk of acute exposure for fish populations inhabiting low-order temperate-streams rich in TOC. The relationship between LC50 and TOC could be a convenient way to improve risk estimation based on laboratory toxicity testing. Fil: Carriquiriborde, Pedro. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Díaz, Juan. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Mugni, Hernan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina Fil: Bonetto, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología ; Argentina Fil: Ronco, Alicia Estela. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química. Centro de Investigaciones del Medio Ambiente; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
The impact of biotech-soybean technology on freshwater ecosystems is being evaluated in the Rolling Pampas region, Argentina. The effect of cypermethrin, the main soybean insecticide, on low-order temperate-stream fish populations was investigated for two consecutive crop cycles under field-use conditions in biotech-soybean production. Cypermethrin was unable to induce mortality or behavioral effects on any of the fish species resident in a first-order stream across a crop field (pulsed acute exposure scenario) sprayed according to conventional practices. No spatially or temporally dependent effects were observed on population parameters (size-class structure, abundance, survival, sex and immature/mature ratio, condition factor) of resident or caged Cnesterodon decemmaculatus after spraying or rainfall events, not even one year after, at the beginning of the next crop cycle. Although cypermethrin was “very highly toxic” to C. decemmaculatus in laboratory water (96 h-LC50 = 0.43 μg/l), its toxicity was reduced in filtered (78%) and unfiltered (92%) stream water. Changes in LC50 values were mainly correlated with the OC content of each water fraction (r2 = 0.99; p < 0.01; n = 9), showing that both DOC and TOC contributed proportionally to toxicity reduction. Protective effects of stream water (12-fold reduction LC50 values) explained the lack of effects on fish populations in the field, despite cypermethrin water concentrations after spraying reached values comparable with the 96 h-LC50. Therefore, cypermethrin under field-use conditions in transgenic-soybean production represents a low risk of acute exposure for fish populations inhabiting low-order temperate-streams rich in TOC. The relationship between LC50 and TOC could be a convenient way to improve risk estimation based on laboratory toxicity testing. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-04-08 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/30735 Ronco, Alicia Estela; Bonetto, Carlos Alberto; Mugni, Hernan Diego; Díaz, Juan; Carriquiriborde, Pedro; Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production; Pergamon-Elsevier Science Ltd.; Chemosphere; 68; 4; 8-4-2007; 613-621 0045-6535 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/30735 |
identifier_str_mv |
Ronco, Alicia Estela; Bonetto, Carlos Alberto; Mugni, Hernan Diego; Díaz, Juan; Carriquiriborde, Pedro; Impact of cypermethrin on stream fish populations under field-use in biotech-soybean production; Pergamon-Elsevier Science Ltd.; Chemosphere; 68; 4; 8-4-2007; 613-621 0045-6535 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.chemosphere.2007.02.051 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0045653507003050 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd. |
publisher.none.fl_str_mv |
Pergamon-Elsevier Science Ltd. |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614464506167296 |
score |
13.070432 |