Haematological Alterations in the Fish Channa Punctatus upon Exposure to Quinalphos Technical Grade and 25% Ec
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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...
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In the present investigation live specimens of Channa punctatus were collected, after acclimatization they were chronically exposed to sublethal concentrations of mercuric chloride for 15 and 30 days. As compared to the control fish, Mercury treated fish kidney showed marked histopathological changes. After 15 days the alterations detected initially were the widening of space between the capsul...
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Sub-chronic exposure (15 days) of Channa punctatus to sub-lethal concentrations of zinc (10, 15 and 25 Zn mg l(-1)) resulted in a significant decline of hepatic and ovarian glycogen, cholesterol, total proteins and total lipids. DNA and RNA contents were also estimated in the ovary. These parameters simultaneously decline with an increase in dose and duration of the experiment. A decline in all...
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The extensive usage and improper disposal of pharmaceuticals have the potential to contaminate the water and sediments. Diclofenac is a widely prescribed non-steroidal anti-inflammatory drug that has been frequently detected in surface waters worldwide. There are evidences of its toxicity in aquatic organisms like phytoplankton, zooplankton and fish. The present study aims to investigate the bi...
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Channa punctatus is a freshwater fish belonging to family Ophiocephalidae. This fish is available in almost all over the country. In present communication molecular study of COI region of mitochondrial gene was done to find out intraspecific differences in genome of Channa punctatus habitating in different states of India having variable environmental conditions. Result showed minor variations ...
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