[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 9, Number 30 (Autumn 2015) ::
IJT 2015, 9(30): 1354-1359 Back to browse issues page
Acute Toxicity and Behavioral Changes Associated with Diazinon in Rutilus rutilus caspicus and Hypophthalmicthys molitrix
Seyed Ali Akbar Hedayati, Hamed Ghafari Farsani, Saeid Shahbazi Naserabad, Mohammad Hasan Gerami *
PhD Candidate, Young Researchers and Elite Club, Shiraz Branch, Islamic Azad University, Shiraz, Iran. , m.h.gerami@gonbad.ac.ir
Abstract:   (2215 Views)
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.
Keywords: Diazinon, Lethal Toxicity, Organ-Phosphorus Pesticide, Roach, Silver Carp.
Full-Text [PDF 2368 kb]   (800 Downloads)    
Type of Study: Research | Subject: General
Send email to the article author

Add your comments about this article
Your username or email:

Write the security code in the box >



XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Hedayati S A A, Ghafari Farsani H, Shahbazi Naserabad S, Gerami M H. Acute Toxicity and Behavioral Changes Associated with Diazinon in Rutilus rutilus caspicus and Hypophthalmicthys molitrix. IJT. 2015; 9 (30) :1354-1359
URL: http://ijt.arakmu.ac.ir/article-1-454-en.html
Volume 9, Number 30 (Autumn 2015) Back to browse issues page
مجله سم شناسی و مسمومیتهای ایران Iranian Journal of Toxicology
Persian site map - English site map - Created in 0.048 seconds with 797 queries by yektaweb 3506