The effect of cypermethrin on different tissues of freshwater fish Tilapia mossambica (Perters)
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Mahanthinamatha Shankaraiah Prashanth
,
Ningappa Changond Hiragond
Abstract
Background: Environmental pollution is one of the most serious problems mankind is facing in this century. Arthropods and fish are highly sensitive to synthetic pyrethroids. In this article, we describe the acute toxicity, free amino acid level and protease activity in the tissues of freshwater fish when exposed to cypermethrin.
Methods: Acute toxicity of cypermethrin to the freshwater fish Tilapia mossambica was studied using a static bioassay method. The effect of cypermethrin on free amino acid and protease activity in tissues of gills, liver and muscle of freshwater fish Tilapia mossambica was also studied.
Results: The LC50 in 96 h was found to be 35.6 μg/L. Free amino acid levels and protease activity showed an elevation following exposure to lethal and sub lethal doses of cypermethrin. A significant change was noticed on day 4 increase. However, normal condition was restored only in sub lethal concentration.
Conclusions: The present study clearly shows significant changes in the Tilapia mossambica when exposed to a low quantity of cypermethrin.
©2011 by Walter de Gruyter Berlin Boston
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Artikel in diesem Heft
- Left anterior descending/right coronary artery as culprit arteries in acute myocardial infarction (n=2011) in changing physical environment, percutaneous coronary intervention data, 2000–2010
- Changes in ECG pattern with advancing age
- The effects of docosahexaenoic acid supplementation and exercise on growth hormone and insulin-like growth factor I serum levels during chronic hypoxia in rats
- Evaluation of antidepressant activity of ropinirole coadministered with fluoxetine in acute and chronic behavioral models of depression in rats
- The effect of cypermethrin on different tissues of freshwater fish Tilapia mossambica (Perters)
- In vitro antibacterial activity of nanoconjugated vancomycin against plasmid mediated intraspecies and interspecies transfer of vancomycin resistance
- Pro-healing effects of morin, a natural antioxidant, on normal and dexamethasone-impaired wounds
- Effects of nimesulide on testicular functions in prepubertal albino rats
- Prescription pattern of antidiabetic drugs in the outpatient departments of hospitals in Malappuram District, Kerala
