Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859)
Pesticides are agrochemicals synthesized to manage a specific range of biological agents and have been yielding desirable results. However, they have been associated with harmful effects on non-target organisms. The focus of this study was to determine and compare the acute toxicity of three commonl...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Scientific African |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468227620302428 |
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| author | Abdulbashir Femi Salako Nnamdi Henry Amaeze Hannah Motunrayo Shobajo Fidelia Ijeoma Osuala |
| author_facet | Abdulbashir Femi Salako Nnamdi Henry Amaeze Hannah Motunrayo Shobajo Fidelia Ijeoma Osuala |
| author_sort | Abdulbashir Femi Salako |
| collection | DOAJ |
| description | Pesticides are agrochemicals synthesized to manage a specific range of biological agents and have been yielding desirable results. However, they have been associated with harmful effects on non-target organisms. The focus of this study was to determine and compare the acute toxicity of three commonly used Pyrethroids (deltamethrin, cypermethrin and lambda-cyhalothrin) on non-target guppies, Poecilia reticulata, in order to guide the decision making for pest management. Twenty frys of P. reticulata (average weight of 0.28±0.13 g and length of 2.13±0.27 cm) were exposed to acute concentrations of each of the three pesticides over 96 hrs. The bioassay experiments were set up in duplicates of five test concentrations and untreated control. All three examined pesticides exhibited varying degree of toxicity (median lethal concentration (LC50); Cypermethrin - 27.07 µg/L, Lambda-cyhalothrin - 81.83 µg/L and Deltamethrin - 31.51 µg/L). Cypermethrin was 1.16 and 3.02 more toxic to the fishes compared to Deltamethrin and Lambda-cyhalothrin respectively. It is concluded that all three Pyrethroids are dangerous to aquatic life with the potential to disrupt the normal trophic balance. Their usage must be regulated and farms should be remotely sited from rivers. |
| first_indexed | 2024-12-13T12:22:10Z |
| format | Article |
| id | doaj.art-76d6697a2bff46d2890cf0fefbd40b2c |
| institution | Directory Open Access Journal |
| issn | 2468-2276 |
| language | English |
| last_indexed | 2024-12-13T12:22:10Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Scientific African |
| spelling | doaj.art-76d6697a2bff46d2890cf0fefbd40b2c2022-12-21T23:46:33ZengElsevierScientific African2468-22762020-09-019e00504Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859)Abdulbashir Femi Salako0Nnamdi Henry Amaeze1Hannah Motunrayo Shobajo2Fidelia Ijeoma Osuala3Environmental Toxicology and Pollution Management Laboratory, Department of Zoology, University of Lagos, Akoka-Yaba, 101017, Lagos, NigeriaCorresponding author.; Environmental Toxicology and Pollution Management Laboratory, Department of Zoology, University of Lagos, Akoka-Yaba, 101017, Lagos, NigeriaEnvironmental Toxicology and Pollution Management Laboratory, Department of Zoology, University of Lagos, Akoka-Yaba, 101017, Lagos, NigeriaEnvironmental Toxicology and Pollution Management Laboratory, Department of Zoology, University of Lagos, Akoka-Yaba, 101017, Lagos, NigeriaPesticides are agrochemicals synthesized to manage a specific range of biological agents and have been yielding desirable results. However, they have been associated with harmful effects on non-target organisms. The focus of this study was to determine and compare the acute toxicity of three commonly used Pyrethroids (deltamethrin, cypermethrin and lambda-cyhalothrin) on non-target guppies, Poecilia reticulata, in order to guide the decision making for pest management. Twenty frys of P. reticulata (average weight of 0.28±0.13 g and length of 2.13±0.27 cm) were exposed to acute concentrations of each of the three pesticides over 96 hrs. The bioassay experiments were set up in duplicates of five test concentrations and untreated control. All three examined pesticides exhibited varying degree of toxicity (median lethal concentration (LC50); Cypermethrin - 27.07 µg/L, Lambda-cyhalothrin - 81.83 µg/L and Deltamethrin - 31.51 µg/L). Cypermethrin was 1.16 and 3.02 more toxic to the fishes compared to Deltamethrin and Lambda-cyhalothrin respectively. It is concluded that all three Pyrethroids are dangerous to aquatic life with the potential to disrupt the normal trophic balance. Their usage must be regulated and farms should be remotely sited from rivers.http://www.sciencedirect.com/science/article/pii/S2468227620302428MosquitofishPesticide toxicologyNon-target organismsSusceptibility |
| spellingShingle | Abdulbashir Femi Salako Nnamdi Henry Amaeze Hannah Motunrayo Shobajo Fidelia Ijeoma Osuala Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859) Scientific African Mosquitofish Pesticide toxicology Non-target organisms Susceptibility |
| title | Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859) |
| title_full | Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859) |
| title_fullStr | Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859) |
| title_full_unstemmed | Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859) |
| title_short | Comparative acute toxicity of three pyrethroids (Deltamethrin, cypermethrin and lambda-cyhalothrin) on guppy fish (Poecilia reticulata peters, 1859) |
| title_sort | comparative acute toxicity of three pyrethroids deltamethrin cypermethrin and lambda cyhalothrin on guppy fish poecilia reticulata peters 1859 |
| topic | Mosquitofish Pesticide toxicology Non-target organisms Susceptibility |
| url | http://www.sciencedirect.com/science/article/pii/S2468227620302428 |
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