Toxicity of cypermethrin and deltamethrin insecticides on embryos and larvae of Physalaemus gracilis (Anura: Leptodactylidae)
| Autor: | Natani Macagnan, Marilia Teresinha Hartmann, Cassiane Kolcenti, Guilherme Victor Vanzetto, Paola F. Sturza, Camila Fatima Rutkoski, Luan Paulo Macagnan, Paulo Afonso Hartmann |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Insecticides Embryo Nonmammalian animal structures Health Toxicology and Mutagenesis Embryonic Development 010501 environmental sciences 01 natural sciences Cypermethrin Toxicology 03 medical and health sciences chemistry.chemical_compound Nitriles Pyrethrins parasitic diseases Toxicity Tests Acute Animals Environmental Chemistry Ecotoxicology 0105 earth and related environmental sciences Pyrethroid biology General Medicine Physalaemus gracilis Pesticide biology.organism_classification Pollution Acute toxicity 030104 developmental biology Deltamethrin chemistry Larva Toxicity Anura Water Pollutants Chemical |
| Zdroj: | Environmental Science and Pollution Research. 24:20699-20704 |
| ISSN: | 1614-7499 0944-1344 |
| DOI: | 10.1007/s11356-017-9727-5 |
| Popis: | It is important to establish the toxicity pesticides against non-target species, especially those pesticides used in commercial formulations. Pyrethroid insecticides are widely used in agriculture despite their toxicity to aquatic animals. In this study, we determine the toxicity of commercial formulation of two pyrethroid insecticides, cypermethrin and deltamethrin, in two life stages of Physalaemus gracilis, a frog that breeds in agricultural ecosystems and has potential contact with pyrethroid pesticides. The acute toxicity test (96 h) was carried out with embryos of stage 17:18 and larvae of stages 24:25. Embryos were more resistant to both pesticides than larvae. In embryo mobility assays, we found that both pesticides caused spasmodic contractions, suggestive of neurological effects. In acute toxicity assays, we found that P. gracilis is more resistant to these insecticides than other studied species. |
| Databáze: | OpenAIRE |
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