Opposite effects of mixtures of commercial formulations of glyphosate with auxinic herbicides on the ten spotted live-bearer fish Cnesterodon decemmaculatus (Pisces, Poeciliidae)
| Autor: | Marcelo L. Larramendy, Sonia Soloneski, C. Ruiz de Arcaute |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
CREDIT®
Health Toxicology and Mutagenesis NON-EQUITOXIC MIXTURES Glycine 0211 other engineering and technologies 02 engineering and technology KAMBA® 010501 environmental sciences LETHAL EFFECTS Toxicology 01 natural sciences Ciencias Biológicas Cyprinodontiformes chemistry.chemical_compound Animal science Biología Celular Microbiología Dicamba Animals 0105 earth and related environmental sciences Poeciliidae WEEDAR® FULL 021110 strategic defence & security studies biology Herbicides General Medicine biology.organism_classification Pollution Acute toxicity Cnesterodon decemmaculatus chemistry Glyphosate Toxicity EQUITOXIC MIXTURES Fish CIENCIAS NATURALES Y EXACTAS Water Pollutants Chemical |
| Zdroj: | Environmental Pollution. 240:858-866 |
| ISSN: | 0269-7491 |
| DOI: | 10.1016/j.envpol.2018.05.036 |
| Popis: | We analyzed the acute toxicity of the 48% glyphosate (GLY)-based Credit®, the 57.71% dicamba (DIC)-based Kamba®, and the 83.5% 2,4-dichlorophenoxyacetic acid (2,4-D)-based Weedar® Full, alone and as mixtures on the fish Cnesterodon decemmaculatus. Mortality revealed the LC50 96h values of 91.73 mg L−1 (range: 86.80-98.00 mg L−1), 1401.57 mg L−1 (range: 1243.78-1527.35) and 678.04 mg L−1 (range: 639.35-718.04 mg L−1) for GLY, DIC and 2,4-D, respectively. Mean values for the toxic unit (TU) that induced 50% mortality (TU50 96h) of fish exposed to equitoxic mixtures were 1.67 (range: 1.65-1.69) for Credit® and Kamba® and 1.28 (range: 1.20-1.36) for Credit® and Weedar® Full suggesting that both mixtures are antagonic. Non-equitoxic combinations demonstrated an antagonistic interaction of herbicides Credit® and Kamba®, whereas a synergistic effect was observed for Credit® and Weedar® Full formulations. GLY and DIC as a mixture demonstrated lower toxicity on non-target species compared to GLY and 2,4-D in combination, at least for C. decemmaculatus, leading to the conclusion that the former combination could be strongly recommended in further agricultural practices. Equitoxic and non-equitoxic mixtures of glyphosate with auxinic herbicides evidence opposite effects in C. decemmaculatus. Fil: Ruiz de Arcaute, Celeste. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Citología; Argentina Fil: Soloneski, Sonia Maria Elsa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Citología; Argentina Fil: Larramendy, Marcelo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Citología; Argentina |
| Databáze: | OpenAIRE |
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