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Iranian Journal of Toxicology، جلد ۹، شماره ۳۰، صفحات ۱۳۵۴-۱۳۵۹
عنوان فارسی Acute Toxicity and Behavioral Changes Associated with Diazinon in Rutilus rutilus caspicus and Hypophthalmicthys molitrix
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عنوان انگلیسی Acute Toxicity and Behavioral Changes Associated with Diazinon in Rutilus rutilus caspicus and Hypophthalmicthys molitrix
چکیده انگلیسی مقاله Background: Diazinon is an organophosphorous pesticide which widely found in municipal, agricultural, and urban storm water discharges. The present study was conducted to achieve lethal concentration (LC50) and behavioral changes of Rutilus rutilus caspius and Hypophthal-micthys molitrix after exposure to lethal concentration of diazinon. Methods: The experiment was carried out in static conditions, based on instructions of OECD in 4 days under controlled water physicochemical conditions with pH of 7.2±0.2, oxygen of 7±0.3 mg/l, total hardness of 180 mg CaCo3 and temperature of 24±1 C°. All fishes were accli-matized in 400 L aquaria for 10 days. Treated aquaria had concentrations of 0.5, 1, 2, 4, 8, 10, 20, 40, 60, and 80 ppm of diazinon for H. molitrix, and 1, 2, 4, 8, 10, and 20 for R. rutilus caspi-cus, while there was no toxic concentration for the control group. LC1, LC10, LC30, LC50, LC70, LC90, and LC99 were calculated for 24, 48, 72, and 96 hours. Results: LC50 96h diazinon values were 3.93 and 1.71 ppm for H. molitrix and R. rutilus caspi-cus, respectively. Clinical observation revealed that the poisoned fishes suffered from nerve paralysis syndrome. The fishes exhibited irregular, erratic, and darting swimming movements, severe aching, and collapse to the bottom of the aquarium. Conclusion: These findings suggest that diazinon has medium toxicity at low concentrations for thede two species and causes morbidities.
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نویسندگان مقاله سیدعلی اکبر هدایتی | seyed ali akbar hedayati
department of fisheries, gorgan university of agricultural and natural resources, gorgan, iran.

سازمان اصلی تایید شده: دانشگاه گلستان (Golestan university)

حامد غفاری فارسانی | hamed ghafari farsani
md, young researchers and elite club, shahrekord branch, islamic azad university, shahrekord, iran.

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

سعید شهبازی ناصرآباد | saeid shahbazi naserabad
md, young researchers and elite club, yasuj branch, islamic azad university, yasuj, iran.

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

محمد حسن گرامی | mohammad hasan gerami
phd candidate, young researchers and elite club, shiraz branch, islamic azad university, shiraz, iran.

سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

نشانی اینترنتی http://ijt.arakmu.ac.ir/browse.php?a_code=A-10-225-5&slc_lang=en&sid=en
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