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Egyptian Journal of Aquatic Biology and Fisheries
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et al., E. (2024). Acute Toxicity of an Emerging Insecticide, Pymetrozine, to the Nile tilapia. Egyptian Journal of Aquatic Biology and Fisheries, 28(5), 265-279. doi: 10.21608/ejabf.2024.378871
EL-Bouhy et al.. "Acute Toxicity of an Emerging Insecticide, Pymetrozine, to the Nile tilapia". Egyptian Journal of Aquatic Biology and Fisheries, 28, 5, 2024, 265-279. doi: 10.21608/ejabf.2024.378871
et al., E. (2024). 'Acute Toxicity of an Emerging Insecticide, Pymetrozine, to the Nile tilapia', Egyptian Journal of Aquatic Biology and Fisheries, 28(5), pp. 265-279. doi: 10.21608/ejabf.2024.378871
et al., E. Acute Toxicity of an Emerging Insecticide, Pymetrozine, to the Nile tilapia. Egyptian Journal of Aquatic Biology and Fisheries, 2024; 28(5): 265-279. doi: 10.21608/ejabf.2024.378871

Acute Toxicity of an Emerging Insecticide, Pymetrozine, to the Nile tilapia

Article 15, Volume 28, Issue 5, September and October 2024, Page 265-279  XML PDF (1.1 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2024.378871
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Author
EL-Bouhy et al.
Abstract
The widespread use of pesticides in veterinary medicine, agriculture, public health, and aquatic environments has increasingly threatened aquatic life in recent years. This study aimed to evaluate the acute toxicity, behavioral changes, and histological alterations caused by pymetrozine (PY) in the Nile tilapia (Oreochromis niloticus). The 96-hour LC50 value for PY was found to be 0.28g/ L, indicating the concentration at which half of the test population succumbed within 96 hours. Behavioral changes such as hyperexcitation, irregular swimming, dark coloration, loss of balance, and lethargy were observed and varied with the concentration of PY. The study also demonstrated that the mortality rate, clinical lesions, behavioral changes, and histological alterations in the gills, liver, and kidneys were all influenced by both the dosage of PY and the duration of exposure, highlighting the toxicological impact of PY on the Nile tilapia.
Keywords
Pymetrozine; Nile tilapia; Histological alterations; Behavior changes
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