Comparative study on the toxicity of pyrethroids, α-cypermethrin and deltamethrin to Ceriodaphnia dubia

Shen, Meifang; Kumar, Anu; Ding, Sheng; Grocke, S.

doi:10.1016/j.ecoenv.2011.07.018

Cited by 37 publications

(20 citation statements)

References 24 publications

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“…The rising cytotoxicity of deltamethrin and fenvalerate on worms after long term exposure might be due to the formation of toxic metabolites because the concentration of deltamethrin and fenvalerate in soil decreased rapidly in the process of degradation by microorganism (P < 0.05) [Fig 1], the major dissipation mechanism and loss route for synthetic pyrethroids in soil [39,40]. So the toxic effect of deltamethrin and fenvalerate did not match with the degradation trend of these pyrethroids [Tables [1][2][3][4][5]. The metabolites of 2-'OH-deltamethrin and 4 -OH-deltamethrin found in the process of deltamethrin's degradation were more toxic than the parental deltamethrin [38].…”

Section: Discussionmentioning

confidence: 96%

“…For guppy Poecilia reticulate the 48 h and 96 h LC50s were 5.13 g L −1 and 1.9 g L −1 , respectively [13]. Aksakal and coworkers reported that the toxicity of pyrethroids ␣-cypermethrin and deltamethrin on C. dubia increased with the increasing exposure time, LC50 was 0.84 g L −1 in 24 h and 0.06 g L −1 in 48 h [3,4,31].…”

Section: Discussionmentioning

confidence: 96%

“…Deltamethrin and fenvalerate have a characteristic of lipophilicity and are easy to be absorbed through the gills of fish and cannot be metabolized quickly and thus are extremely toxic to aquatic life even at minute concentration. Shen et al's study showed that the 48 h LC50 of deltamethrin for guppy (Poecilia reticulate) was 5.13 g L −1 [4], which was three times more toxic than a-cypermethrin [12], and fenvalerate is very toxic to growth and physical activities of fish species even at minute concentration [13].…”

Section: Introductionmentioning

confidence: 98%

“…However, their carcinogenic, neurotoxic and immunity-suppressive potential as well as reproductive toxicity have been been found recently. Pyrethriods have become the dominant insecticides since 1980s, and were widely used in agricultural, industrial and residential products for control of insect pests [3][4][5], so they are found ubiquitous in water, sediments and soil, particularly in farmland for certain crops including wheat, corn, peanuts and vegetables even the environmental persistence of pyrethroids is usually lower than 90 days. Maria reported that deltamethrin in cyprinus carpio ranged from 0.490 to 0.839 g g −1 , mostly exceeding 0.5 g g −1 the maximum residual limit suggested by FAO-WHO [6].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Long-term toxic effects of deltamethrin and fenvalerante in soil

Song

Kai

Song

et al. 2015

Journal of Hazardous Materials

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Long-term toxic effects of deltamethrin and fenvalerante in soil

Song

Kai

Song

et al. 2015

Journal of Hazardous Materials

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“…Estos pesticidas deben tener la propiedad de matar al parásito, sin provocar toxicidad en el hospedador y deben ser inocuos para el medio ambiente, a las concentraciones y períodos de aplicación recomendados por los laboratorios que desarrollaron el producto. El mal uso de estos productos puede provocar problemas en el ambiente acuático y en los organismos vivos que habitan en las zonas circundantes si no son usados apropiadamente (Ait et al, 2011;Kumar et al, 2011;Wang et al, 2011;Shen et al, 2012). Sin embargo, uno de los grandes problemas que se han evidenciado en Chile y en otros países, es la pérdida de sensibilidad del piojo de mar frente al uso repetitivo de un mismo fármaco (Jones et al, 1992;Denholm et al, 2002;Sevatdal & Horsberg, 2003;Sevatdal et al, 2005;Bravo et al, 2008b;Helgesen et al, 2014).…”

Section: Caligus Rogercresseyiunclassified

Evaluacion de la efectividad del tratamiento con agua dulce para el control del piojo de mar Caligus rogercresseyi Boxshall y Bravo, 2000

Bravo

Pozo

Silva

2015

lajar

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RESUMEN. Para evaluar la tolerancia de Caligus rogercresseyi al tratamiento con agua dulce, se recolectaron parásitos desde dos centros de cultivos localizados en el área de Calbuco, sur de Chile. El primer estudio se realizó en diciembre 2012 en un centro de cultivos ubicado en el Canal Huito, cuya salinidad fue de 26 y el segundo estudio se realizó en abril 2013 en un centro de cultivos en el Canal Chidhuapi, donde la salinidad fue de 32. En el primer estudio se evaluó la tolerancia de hembras y machos adultos de C. rogercresseyi al agua dulce y también la tolerancia de esta especie en truchas bañadas con agua dulce por 30 min de exposición. En el segundo estudio se evaluó la tolerancia de machos y hembras adultas a diferentes gradientes de salinidad, y también la tolerancia de copepoditos a la baja salinidad. En el primer estudio el 100% de los machos y hembras estuvieron inconscientes después de 30 min de exposición. Sin embargo, una vez que los parásitos inconscientes fueron retornados a agua de mar se registró una supervivencia de 93% en machos, 73% en hembras ovígeras y 100% en hembras sin sacos. En el segundo estudio se registró una supervivencia de 45% en hembras y 20% en machos sometidos a salinidad de 15 por 24 h. Los copepoditos no sobrevivieron a salinidad de 25. La eficacia registrada en el desprendimiento de C. rogercresseyi en las truchas tratadas con agua dulce fue de 57%, con una mayor tolerancia de las hembras en comparación con los machos. Los parásitos colectados desde el sector con 26 de salinidad, mostraron mayor tolerancia al agua dulce en comparación con los parásitos colectados del sitio con 32 de salinidad. Palabras clave: Caligus rogercresseyi, piojo de mar, salmónidos, salinidad, tolerancia agua dulce, sur de Chile. Assessment of the freshwater treatment to control the sea lice Caligus rogercresseyiBoxshall & Bravo, 2000ABSTRACT. Sea lice were collected from two salmon farms located in Calbuco, southern Chile to assess the tolerance of Caligus rogercresseyi to freshwater treatment. The first study was carried out in December 2012 in Huito Channel, where salinity reached 26. The second study was carried out in April 2013 in Chidhuapi Channel, where salinity reached 32. In the first study the tolerance of males and females exposed directly to freshwater was assessed, and also the tolerance of C. rogercresseyi infesting rainbow trout (Oncohrynchus kisutch) exposed to bath treatment with freshwater for 30 min. In the second study the tolerance of males and females to a different gradient of salinity was assessed, and also the tolerance of copepodids to reduced salinity. In the first study 100% of males and females were unconscious after 30 min of exposure. However, once they were returned to seawater the survival in males was 93%, 73% in gravid females and 100% in females without egg strings. In the second study a survival of 45% females was recorded and 20% males kept at salinity of 15 for 24 h. However, copepodids were not able to survive at a salinity of 25. The efficacy recorded in t...

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Assessment of the Impact of Decis 2.5 EC on the Growth of Hippuris vulgaris

Gałczyńska

Swarcewicz

Paździoch

et al. 2016

CLEAN Soil Air Water

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The macrophyte biological index for rivers (IBMR) is the only method which describes eutrophication as well as organic pollution in a single index value. Presence of Hippuris vulgaris in water or lack thereof may affect the IBMR value. Potential effects of water pollution with Decis 2.5 EC containing deltamethrin in a water/sediment/plant system were the objectives of this research because this insecticide often occurs in soil and water as a contamination. Therefore, the aim of the present study was to answer the question of how Decis 2.5 EC as stress factor affects the growth of H. vulgaris, and determine the persistence of deltamethrin in the water/sediment/plant system. This study was conducted under different trophic levels during 18 wk in each of 3 consecutive years. The half‐life of deltamethrin in water was estimated in the test system. It was found that H. vulgaris demonstrated its ability to survive in the water/sediment environment contaminated with Decis 2.5 EC despite the inhibition of the plant's development. In the presence of insecticidal formulation, the plant's growth was much slower compared to control. The tolerance index ranged from 0.19 to 0.37 with the lower values obtained for the higher concentration of phosphorus, nitrogen, potassium. Long‐term studies of H. vulgaris grown under different trophic conditions indicate that despite the plant's ability to survive the contamination with Decis 2.5 EC, the timing of the macrophytes assessment is crucial to assess the occurrence and development of this plant and the ecological status of water.

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Comparative study on the toxicity of pyrethroids, α-cypermethrin and deltamethrin to Ceriodaphnia dubia

Cited by 37 publications

References 24 publications

Long-term toxic effects of deltamethrin and fenvalerante in soil

Long-term toxic effects of deltamethrin and fenvalerante in soil

Evaluacion de la efectividad del tratamiento con agua dulce para el control del piojo de mar Caligus rogercresseyi Boxshall y Bravo, 2000

Assessment of the Impact of Decis 2.5 EC on the Growth of Hippuris vulgaris

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