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Impact of lead on survival and biophysiological parameters of Horn snail, Indoplanorbis exustus Deshayes, 1834

Author Affiliations

  • 1Department of Zoology, Ayya Nadar Janaki Ammal College, Virudhunagar District, Sivakasi-626124, India
  • 2Department of Zoology, Ayya Nadar Janaki Ammal College, Virudhunagar District, Sivakasi-626124, India

Int. Res. J. Environment Sci., Volume 6, Issue (4), Pages 6-12, April,22 (2017)


The toxicity of lead on the biophysiological parameters of fresh water horn snail, Indoplanorbis exustus was evaluated under laboratory condition. Mortality rate was assessed and lethal concentration LD50 was calculated as 9.886 ppm at 96 h. To determine the toxic properties of lead on metabolism the oxygen consumption rate, biochemical content and bioaccumulation rate were observed in adult snail on exposing them to acute and chronic exposure of lead. The oxygen consumption rate and biochemical content showed decrease in increasing exposure time and concentration. The biomagnifications after chronic exposure to lead showed an accumulation rate of 32 ppm in the snail body at higher concentration. The results showed that the snail I. exustus was sensitive to lead on comparing with other tolerant gastropods.


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