Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)

The aim of this study was to evaluate the survival, biomass, reproductiveparameters and morphological changes of Octolasion cyaneum (Annelida:Oligochaeta, Lumbricidae) exposed to different concentrations of chlorpyrifos. The experimental unit consisted of a container with 750 g of soil mixed with th...

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Detalles Bibliográficos
Autores principales: Salvio, c., Manetti, P.L., Clemente, N.L., Menone, M.L., López, A.N.
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias 2015
Materias:
Earthworm
ecotoxicological bioassay
neurotoxic insecticide.
lombriz
bioensayo ecotoxicológico
insecticida neurotóxico.
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/16564
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-16564
record_format ojs
spelling I10-R352-article-165642020-02-13T17:57:11Z Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae) Toxicidad subletal de clorpirifos sobre Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae) Salvio, c. Manetti, P.L. Clemente, N.L. Menone, M.L. López, A.N. Earthworm ecotoxicological bioassay neurotoxic insecticide. lombriz bioensayo ecotoxicológico insecticida neurotóxico. The aim of this study was to evaluate the survival, biomass, reproductiveparameters and morphological changes of Octolasion cyaneum (Annelida:Oligochaeta, Lumbricidae) exposed to different concentrations of chlorpyrifos. The experimental unit consisted of a container with 750 g of soil mixed with the concentration of the insecticide and 10 adult individuals (weight range: 300-600 mg). The treatments were: 0, 120, 240, 480 (recommended application concentration), 960 and 1440 g of chlorpyrifos ha-1. The design was completely randomized with four replications and was conducted under controlled conditions (20±2ºC, 14L: 10O). O. cyaneum biomass differed between treatments at 7, 14 and 28 days after application (DAA) (p<0.05), and showed the highest biomass in the control. The number of cocoons and juveniles at 56 DAA was higher in the control compared to the other treatments (p<0.05). In the bioassay 235 individuals were alive and 5 were dead, nevertheless the 35% of organisms showed morphological changes. It was noted that the percentage of damage varied depending on the concentration of the insecticide (p = 0.0046). Chlorpyrifos did not affect the survival of O. cyaneum but caused morphological changes and a reduction in biomass and reproductive parameters.   El objetivo de este trabajo fue evaluar la supervivencia, biomasa, parámetros reproductivos y cambios morfológicos de Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae) expuesta a diferentes  concentraciones de clorpirifos. La unidad experimental consistió en un recipiente con 750 g de suelo mezclado con la concentración del insecticida y 10 individuos adultos (rango de peso: 300-600 mg). Los tratamientos fueron: 0, 120, 240, 480 (concentración de aplicación recomendada), 960 y 1440 g de clorpirifos ha-1. El diseño fue completamente aleatorizado con cuatro repeticiones y se llevó a cabo en condiciones controladas (20±2ºC; 14L: 10O). La biomasa de O. cyaneum difirió entre los tratamientos a los 7, 14 y 28 días después dela aplicación (DDA) (p<0,05), observándose la biomasa mayor en el testigo. El número de cocones y juveniles a los 56 DDA fue mayor en el testigo con respecto a los demás tratamientos (p<0,05). Se obtuvieron 235 individuos vivos y 5 muertos, no obstante, el 35% de los organismos presentaron cambios morfológicos. Se observó que el porcentaje de daño varió en función de la concentración del insecticida (p = 0,0046). Clorpirifos no afectó la supervivencia de O. cyaneum pero causó cambios morfológicos y reducción en su biomasa y en sus parámetros reproductivos.   Facultad de Ciencias Agropecuarias 2015-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/16564 10.31047/1668.298x.v32.n2.16564 AgriScientia; Vol. 32 No. 2 (2015); 131-138 AgriScientia; Vol. 32 Núm. 2 (2015); 131-138 1668-298X 10.31047/1668.298x.v32.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/16564/16374
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-352
container_title_str AgriScientia
language Español
format Artículo revista
topic Earthworm
ecotoxicological bioassay
neurotoxic insecticide.
lombriz
bioensayo ecotoxicológico
insecticida neurotóxico.
spellingShingle Earthworm
ecotoxicological bioassay
neurotoxic insecticide.
lombriz
bioensayo ecotoxicológico
insecticida neurotóxico.
Salvio, c.
Manetti, P.L.
Clemente, N.L.
Menone, M.L.
López, A.N.
Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
topic_facet Earthworm
ecotoxicological bioassay
neurotoxic insecticide.
lombriz
bioensayo ecotoxicológico
insecticida neurotóxico.
author Salvio, c.
Manetti, P.L.
Clemente, N.L.
Menone, M.L.
López, A.N.
author_facet Salvio, c.
Manetti, P.L.
Clemente, N.L.
Menone, M.L.
López, A.N.
author_sort Salvio, c.
title Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
title_short Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
title_full Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
title_fullStr Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
title_full_unstemmed Sublethal toxicity of chlorpyrifos on Octolasion cyaneum (Annelida: Oligochaeta, Lumbricidae)
title_sort sublethal toxicity of chlorpyrifos on octolasion cyaneum (annelida: oligochaeta, lumbricidae)
description The aim of this study was to evaluate the survival, biomass, reproductiveparameters and morphological changes of Octolasion cyaneum (Annelida:Oligochaeta, Lumbricidae) exposed to different concentrations of chlorpyrifos. The experimental unit consisted of a container with 750 g of soil mixed with the concentration of the insecticide and 10 adult individuals (weight range: 300-600 mg). The treatments were: 0, 120, 240, 480 (recommended application concentration), 960 and 1440 g of chlorpyrifos ha-1. The design was completely randomized with four replications and was conducted under controlled conditions (20±2ºC, 14L: 10O). O. cyaneum biomass differed between treatments at 7, 14 and 28 days after application (DAA) (p<0.05), and showed the highest biomass in the control. The number of cocoons and juveniles at 56 DAA was higher in the control compared to the other treatments (p<0.05). In the bioassay 235 individuals were alive and 5 were dead, nevertheless the 35% of organisms showed morphological changes. It was noted that the percentage of damage varied depending on the concentration of the insecticide (p = 0.0046). Chlorpyrifos did not affect the survival of O. cyaneum but caused morphological changes and a reduction in biomass and reproductive parameters.  
publisher Facultad de Ciencias Agropecuarias
publishDate 2015
url https://revistas.unc.edu.ar/index.php/agris/article/view/16564
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first_indexed 2024-09-03T21:44:38Z
last_indexed 2024-09-03T21:44:38Z
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