Volume No. 6 Issue No.: 3A Page No.: 743-747 Jan-Mar 12

 

SHORT TERM TOXIC EFFECT OF LEAD NITRATE, LEAD ACETATE AND MERCURIC ACETATE ON TADPOLE OF Rana tigrina

 

Nageshwar Wast*, S. Gaherwal and M. M. Prakash

Department of Biotechnology, Govt. Holkar Science College, Indore, Madhya Pradesh (INDIA)

 

Received on : December 10, 2011

 

ABSTRACT

 

Present paper describe the effect of lead nitrate, lead acetate and mercuric acetate on tadpole of fresh water Rana tigrina at the five different concentrations (50 μg/L, 100 μg/L, 200 μg/L, 400 μg/L and 800 μg/L) for 120 hours exposure. Mercuric acetate caused 100% mortality within six hour in the three different concentration (200 μg/L, 400 μg/L and 800 μg/L ) used while in 50 μg/L concentration 100% tadpole were survived up to 24 hours. However, gradual decrease in survival percentage was noted in further duration of exposure i.e. 80% survived up to 48 hours, 60% survived up to 72 hours and 20% survived up to 96 hours. In 120 hours exposure of the same concentration all the tadpole were observed died. In both, lead nitrate and lead acetate, in 50 μg/L concentration all the tadpole survived up to 72 hours. However, in 96 hours and 120 hours exposure of the lead nitrate and lead acetate 80% and 60% tadpoles were survived respectively.

 

Keywords : Frog tadpole, Mercuric acetate, Lead nitrate, Lead acetate, Rana tigrina

 

 

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