2010•World journal of zoologyRequires access

Toxicological and biochemical alterations of cypermethrin (synthetic pyrethroids) against freshwater teleost fish Colisa fasciatus at different season.

Samiksha Singh, R. P. Yadav

Abstract

2 Abstract: The cypermethrin (synthetic pyrethroids) has shows strong piscicidal activity in freshwater teleost fish Colisa fasciatus for all the exposure periods (24h or 96h) in time as well as dose dependent manner. The LC values decreases from 0.009 (24h) to 0.006 (96h) in winter season (water temp. 16°C) and 0.06 (24h) to 50 0.02 (96h) in summer season (water temp. 28°C). Sub-lethal doses (40 and 60% of LC ) of cypermethrin after 96h 50 was also significantly alter the levels of total protein, total free amino acid, in muscle and liver tissues, nucleic acids (DNA and RNA) in gonadal tissues and the activity of enzyme acetylcholinesterase (AChE), lactic dehydrogenase (LDH) and succinic dehydrogenase (SDH) in nervous tissue of the freshwater teleost fish C. fasciatus in time and dose dependent manner.

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Key concepts: Cypermethrin, Biology, Nucleic acid, Zoology, Lactate dehydrogenase, Insect, Enzyme, Toxicology