The Bioscan, 2 (1) 067-070,2007
An International Quarterly Journal of Life Sciences
web site: www.thebioscan.in 
BIOACCUMULATION OF ARSENIC IN THE FRESH WATER FISH
LABEO ROHITA (HAM.)
K. PAZHANISAY*, M. VASANTHY** AND N. INDRA
Department of Zoology, Annamalai Unviversity, Annamalai Nagar -608 002, Tamil Nadu, India. **P.G. & Research Dept. of Enviromental Sciences, Govt.Art College, Ariyalur - 621713, Tamil Nadu, India *Department of Zoology, Govt. Aart College, Ariyalur - 621713, Tamil Nadu, India E-mail: pazhani_zoo@yahoo.com

KEY WORDS

Labeo rohia
Bioaccumulation
Arsenic



Received on: 26.07.2006

Accepted on: 03.10.2006


*Corresponding
 Author

ABSTRACT

Bioaccumulation of arsenic in the fish- Labeo, was investigated after exposure to two sublethal concentration of arsenic trioxide (1/10th-0.27ppm and 1/3rd - 0.91 ppm of the 96 h LC50) for 7th, 14th, 21st & 28th days. The highest/ maximum level of accumulation of arsenic was seen in the liver whereas the lowest level of arsenic had been accumulated in the muscle tissues at the end of 28 days of exposure period. It is clear that arsenic has been accumulated primarily in the liver tissued of L. rohita exposed to sublethel concentration of arsenic. The present investigation indicates that the rate of accumulation of arsenic was found to be dose and time dependent.