Volume -II , Issue -II, December 2015

TOXICITY AND BIOACCUMULATION OF CADMIUM IN THE FISH, RASBORA - DANICONIUS

Monica K. Kale

Among heavy metals cadmium is of great concern since it is more toxic to aquatic organism such as fishes etc. which are important components of food chain. The toxicity of cadmium to the fish Rasbora- daniconius for 24h was tested according to the OECD (1992) guidelines No. 203. The toxicity 24h (Lc5o) of cadmium chloride (Cdcl2 2 ^ H2O) was found to be 110 ppm for R- daniconius. Bioaccumulation of cadmium in gills, intestine and tail muscles of the fish R- daniconius was analyzed using Pc based AAS. The fishes were exposed to sub lethal concentration (20ppm) of cadmium chloride for 24h, 48h, 72h, and 96h. It was observed that the trend of degree of accumulation of cadmium in different tissues was as follows gills> intestine> muscles. Cadmium appeared to be toxic to fish.

Fish, Cadmium, toxicity, bioaccumulation

1. Kumar et.al (2008) Accumulation pattern of cadmium in tissues of Indian catfish clariasbatrachus. Animnut.feed technol. 8:115-119.
2. USFDA 1993 United States food and drug administration, center for food safety and applied nutrition guidance documents for cadmium in shellfish
3. KalaiselviPet. Al. (2010) Impact of Industrial Effluents in seed invigoration: A review Asian J. Plant Sci. 9:249-255
4. Saxena and Garg (2010) Vitamin E provides protection against in vitro oxidative stress due pesticides (Chlorpyrifos and Endosulfan) in goat RBC.. GERF Bull. Bio. Sci, 1(1): 1-6
5. Zyadah and Abdel (2000) Toxicity and bioaccumulation of copper zinc and cadmium in some aquateic organism. Bull. Environ, contamToxicol. 64:740-747
6. Ahmed et.al (2002) Asian J. Plant Sci. 1:70-72 Monitoring and wastewater quality of Gadoonamazai industrial estate NWFP Pakistan.
7. Shukry et.al (2001) Pak. J. Biol. Sci, 4:1153-1159 - Effect of Industrial Effluents Polluting the River Nile on Growth, Metabolism and Productivity of Triticumaestivum and Viciafaba Plants.
8. Swarup et.al. (2006) Small Ruminant. Res. 63:309-313 Deficiency of copper and cobalt in goals reared around lead zinc smelter
9. Pinot F. et al (2000) - Rev Environ Health. 2000 Jul-Sep; 15(3):299-323 Cadmium in the environment, sources, mechanism of biotoxicity, and biomarkers.
10. Shandilya, S.; Banerjee, V. (1989) Effect of Sublethal toxicity zinc and chromium on peripheral hemogram in the fish, Heteropneustesfossilis J. Env. Eco. 7(I):16-23