Toxicity studies of butachlor to the freshwater fish Channa punctata (Bloch).
نویسندگان
چکیده
The toxicity studies were conducted on the fish Channa punctata (Bloch) by employing static and continuous flow through systems, for the toxicant butachlor (technical grade+) and its commercial formulation+ (machete 50% EC). The LC50 values are 297.89 ppb and 247.46 ppb for 24 hr and 48 hr in static for technical and 636.45 and 546.09 for machete. In continuous flow through the values are 270.05, 233.52 to the technical and 567.85 and 481.49 respectively for machete. The tissues show qualitative accumulation and were quantitatively analysed by gas liquid chromatography (GLC).
منابع مشابه
Studies on histopathological changes in the gill, liver and kidney of Channa punctatus (Bloch) exposed to Alachlor.
Freshwater fish, Channa punctatus was exposed to sublethal concentration of a chloroacetanilide herbicide alachlor technical grade and lasso 50% EC for a period of 10 days. The histopathological changes in the gill include: necrosis, vacuolar degeneration, fusion and atrophy of primary and secondary gill lamellae. The tissue damages like degeneration of cytoplasm in hepatocytes, atrophy formati...
متن کاملEstimation of length-weight relationship and condition factor of spotted snakehead Channa punctata (Bloch) under different feeding regimes
Comparative study was conducted to observe the efficacy of different feeding regimes on growth of Channa punctata. Six iso- proteinous diets were prepared by using different agro industrial by-products. Maximum weight gain was recorded with diet having 66.75% rice bran, 11.50% mustard cake, 23.0% groundnut cake, 5% molasses, 1.5% vitamin-mineral mixture and 0.5% salt with specific growth rate o...
متن کاملAssessment of pollution of river Ganges by tannery effluents using genotoxicity biomarkers in murrel fish, Channa punctatus (Bloch).
River pollution due to rapid industrialization and anthropogenic activities adversely affects the aquatic organisms, especially fish. Here, we assessed the genotoxicity, mutagenicity and bioaccumulative aspects of tannery effluents in freshwater murrel, Channa punctatus, an inhabitant of river Ganges. Test specimens were collected from three different polluted sites of the river within and near...
متن کاملEffect of Arsenic (As2o3) on Haemetological Parameters of Freshwater Air Breathing Fish, Channa punctatus (Bloch)
Arsenic is a naturally occurring element found widely in the environment. However, on recent days the level of arsenic in the environment has increased several folds due to its use as pesticide, defoliant, electronics, thermal power plants, wood preservatives and metal industry. Arsenic has been reported as one of the most alarming chemical in the environment [1], present in different forms and...
متن کاملToxicity of Arsenic (Sodium Arsenite) to Fresh Water Spotted Snakehead Channa punctatus (Bloch) on Cellular Death and DNA Content
Arsenic is a devastating environmental pollutant that has caused severe pollution of ground water in Bangladesh. In this study, Spotted Snakehead (Channa punctatus, Bloch), a common freshwater fish of Bangladesh was exposed to sodium arsenite (NaAsO ) to evaluate its toxic effects on that fish. Different 2 concentrations of NaAsO ranging from 0.5 mM-2 mM were used in this investigation. When th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of environmental biology
دوره 28 2 Suppl شماره
صفحات -
تاریخ انتشار 2007