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      Permanent link:
      https://www.ias.ac.in/article/fulltext/anml/095/05/0539-0547

    • Keywords

       

      Starvation stress; biochemical constituents; tropical intertidal gastropod; lipid oriented metabolism; oxygen consumption

    • Abstract

       

      The snailMorula granulata (Duclos) survived the starvation stress over a period of 30 days but 50% mortality occurred on the 70th day. The changes in the level and content of different biochemical constituents viz carbohydrates, glycogen, free sugars, protein, total ninhydrin positive substances and lipids were investigated in foot, gonad digestive gland complex and viscera of the animal at intervals of 10 days up to 70 days. All these biochemical constituents (both level and content) were found to decrease with the period of starvation showing their utilisation except total ninhydrin positive substances which exhibited an increase. Of all the 3 tissues, the gonad digestive gland complex was affected most during starvation. ‘Lipid-oriented’ metabolism was observed in this animal showing maximum utilisation of lipids during starvation. Respiratory studies revealed a decreased pattern of oxygen consumption with increasing period of starvation when calculated per snail or per tissue weight. The recalculated intercept values (a) also showed a decreasing trend when exposed to starvation.

    • Author Affiliations

       

      V Uma Devi1 Y Prabhakara Rao1 D G V Prasada Rao1

      1. Department of Zoology, Andhra University, Waltair - 530003, India
    • Dates

       
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