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.
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References
Barry R J C and Munday D A 1959 Carbohydrate levels in Patella:J. Mar. Biol. Assoc. UK 38 81–95
Bayne B L and Scullard C 1978 Rates ofoxygen consumption byThais (Nucella) lapillus (L);J. Exp. Mar. Biol. Ecol. 32 97–111
Berg K. Lumbye J and Ocklemann K W 1958 Seasonal and experimental variations of oxygen consumption of limpetAncylus fluviatilis:J. Exp. Biol. 35 43–73
Carrol N V. Longley R W and Roe J H 1956 The determination of glycogen in liver and muscle by use of anthrone reagent;J. Biol. Chem. 220 583–593
Duerr F 1965 Some effects of diet on the respiratory rate of the freshwater pulmonate snailLymnaea palustris;Proc. S. D. Acad. Sci. 44 245
Emerson D N 1967 Carbohydrate oriented metabolism ofPlanorbis corneus (Mollusca, Planorbidae) during starvation;Compo Biochem. Physiol. 22 571–579
Emerson D N and Duerr F 1967 Some physiological effects of starvation in the intertidal prosobranchLiuorina planaxis (Philippi 1847);Comp. Biochem. Physiol. 20 45–53.
Folch J. Lees H and Slone Stanley G H 1957 A simple method for the isolation and purification of total lipids from animal tissues;J.Biol. Chem. 266 497–509
Giese A C 1966 Lipids in the economy of marine invertebrates;Physiol. Rev. 46 244–298
Lowry O H, Rosenbrough N J, Farr A L and Randall R J 1951 Protein measurement with the Folin reagent;J. Biol. Chem. 193 265–275
Lumbye J and Lumbye J 1965 The oxygen consumption ofPotamopyrqus jenkinsi (Smith);Hydrobiologia 25 489–500
Martin A and Goddard C 1966 Carbohydrate metabolism; inPhysiology of Mollusca (ed) K M Wilbur and C M Yonge (New York: Academic Press) pp 275–308
Moore S and Stein W H 1954 A modified ninhydrin reagent for the photometric determination of amino acids and related compounds;J. Biol. Chem. 211 907–913
Prasada Rao D G V and Urna Devi V 1981 Oxygen consumption in relation to body size in the intertidal gastropodMorula granulata (Duclos);Geobios 8 249–253
Ricardo P J and Brennes R R 1981 Effect of environment and fasting on the lipids and fatty acid composition ofDiplodon pataqonicus;Lipids 16 685–690
Schofleniels E and Gilles R 1972 lonoregulation and osmoregulation in mollusca; inChemical Zoology (ed) M F Florkin and B T Scheer (New York: Academic Press) pp 301–342
Snedecor G W and Cochran W G 1967Statistical methods (Iowa: The Iowa State University Press)
Stickle W B 1971 The metabolic effects of starvingThais lamellosa immediately after spawning;Compo Biochem. Physiol. A40 627–634
Stickle W B 1975 The reproductive physiology of the intertidal prosobranchThais lamellosa Gmelin. II Seasonal changes in the biochemical composition;Biol. Bull;148 448–460
Stickle W B and Bayne B L 1982 Effects of temperature and salinity on oxygen consumption and nitrogen excretion inThais lapillus;J. Exp. Mar. Biol. Ecol. 58 1–17
Stickle W B and Duerr F G 1970 Effects of starvation on the respiration and major nutrient stores ofThais lamellosa;Camp. Biochem. Physiol;33 689–695
Uma Devi V, Prabhakara Rao Y and Prasada Rao D G V 1985 Body component indices of an intertidal gastropodMorula granulata (Duclos) subjected to starvation;Indian J. Mar. Sci. 14 44–45
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Devi, V.U., Prabhakara Rao, Y. & Prasada Rao, D.G.V. Starvation as a stress factor influencing the metabolism of a tropical intertidal gastropodMorula granulata (Duclos). Proc. Indian Acad. Sci. (Anim. Sci.) 95, 539–547 (1986). https://doi.org/10.1007/BF03179416
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DOI: https://doi.org/10.1007/BF03179416