Digestion in a subtidal population of Mercenaria mercenaria (Bivalvia)
Tóm tắt
The digestive processes of Mercenaria mercenaria (Linn.) were studied in a natural subtidal population. Hourly sampling of 4 to 5 quahogs was conducted over one 25 h period in August, 1978, at Woods Hole, Ma., USA. Crystalline style length did not vary significantly with time, tide, particulate C, N or suspended material in the water. Changes in secretory activity of the style sac epithelium were not evident from histological sections. Based on cellular morphological differences, digestive tubules were individually classified into one of 4 categories, indicative of the state of intracellular digestion within the digestive cells. All 4 tubule types were present in individuals from each sample hour, signifying that intracellular digestion occurs continually within the digestive gland. A 3 h time lag is evident between times of peak C, N or suspended materials and apparent peak levels of absorptive (Type II) tubules.
Tài liệu tham khảo
Ballantine, D. and J. E. Morton: Filtering, feeding and digestion in the lamellibranch Lasaea rubra. J. mar. biol. Ass. U.K. 35, 241–274 (1956)
Bernard, F. R.: Crystalline style formation and function in the oyster Crassostrea gigas (Thunberg, 1795). Ophelia 12, 159–170 (1973)
Humason, G. L.: Animal tissue techniques. 3rd ed. 641 pp. San Francisco: W. H. Freeman, Co. 1972
Kato, K. and K. Kubomura: On the origin of the crystalline style of lamellibranchs. Sci. Rep. Saitama Univ., Ser. B 3, 135–152 (1954)
Kirstensen, J. H.: Structure and function of the crystalline style of bivalves. Ophelia 10, 91–108 (1972)
Langton, R. W.: Synchrony in the digestive diverticula of Mytilus edulis L. J. mar. biol. Ass. U.K. 55, 221–230 (1975)
Langton, R. W.: Digestive rhythms in the mussel Mytilus edulis. Mar. Biol. 41, 53–58 (1977)
Langton, R. W. and P. A. Gabbott: The tidal rhythm of extracellular digestion and the response to feeding in Ostrea edulis. Mar. Biol. 24, 181–187 (1974)
Mathers, N. F.: A comparative histochemical survey of enzymes associated with the processes of digestion in Ostrea edulis and Crassostrea angulata. J. Zool., Lond. 169, 169–179 (1973)
Mathers, N. F.: The effects of tidal currents on the rhythm of feeding and digestion in Pecten maximus L. J. exp. mar. Biol. Ecol. 24, 271–283 (1976)
Mathers, N. F., T. Smith and N. Colins: Monophasic and diphasic digestive cycles in Venerupis decussata and Chlamys varia. J. moll. Stud. 45, 68–81 (1979)
McQuiston, R. W.: Cyclic activity in the digestive diverticula of Lasaea rubra (Montagu) (Bivalvia, Eulamellibranchia) Proc. malac. Soc. Lond. 38, 483–492 (1969)
Morton, B. S.: Studies on the biology of Dreissena polymorpha Pall. II. Correlation of the rhythms of adductor activity, feeding, digestion and excretion. Proc. malac. Soc. Lond. 38, 401–414 (1969)
Morton, B. S.: The tidal rhythm and rhythm of feeding and digestion in Cardium edule. J. mar. biol. Ass. U.K., 50, 499–512 (1970a)
Morton, B. S.: A note on the cytological structure and function of the digestive diverticular of Macoma balthica correlated with the rhythm of the tide. Malacol. Rev. 3, 115–119 (1970b)
Morton, B. S.: The rhythmical behavior of Anodonta cygnea L. and Unio pictorum L. and its biological significance. Forma et Functio 2, 110–120 (1970c)
Morton, B. S.: The diurnal rhythm and tidal rhythm of feeding and digestion in Ostrea edulis. Biol. J. Linn. Soc. 3, 329–342 (1971)
Morton, B. S.: A new theory of feeding and digestion in the filter feeding Lamellibranchia. Malacologia 14, 63–79 (1973)
Morton, B. S.: The diurnal rhythm and the feeding responses of the southeast Asian mangrove bivalve, Geloina proxima Prime 1864 (Bivalvia: Corbiculacea). Forma et Functio 8, 405–418 (1975)
Morton, B. S.: The biology, ecology and functional aspects of the organs of feeding and digestion of the S.E. Asian mangrove bivalve Enigmonia aenigmatica (Mollusca: Anomiacea). J. Zool., Lond. 179, 437–466 (1976)
Morton, B. S.: The tidal rhythm of feeding and digestion in the Pacific oyster, Crassostrea gigas (Thunberg). J. exp. mar. Biol. Ecol. 26, 135–151 (1977)
Morton, J. E.: The tidal rhythm and action of the digestive system of the lamellibranch Lasaea rubra. J. mar. biol. Ass. U.K. 35, 563–586 (1956)
Owen, G.: Observations on the stomach and digestive diverticula of the Lamellibranchia. I. The Anisomyaria and Eulamellibranchia. Q. Jl. microsc. Sci. 96, 517–537 (1955)
Owen, G.: Digestion. In: Physiology of mollusca, Vol II., pp 53–96. Ed. by K. M. Wilbur and C. M. Yonge. New York: Academic Press 1966
Owen, G.: The fine structure of the digestive tubules of the marine bivalve, Cardium edule. Phil. Trans. R. Soc. Ser. B 258, 245–260 (1970)
Owen, G.: Lysozomes, peroxisomes, and bivalves. Sci. Prog. 60, 299–318 (1972)
Owen, G.: Feeding and digestion in the Bivalvia. Adv. Comp. Physiol. Biochem. 5, 1–35 (1974)
Palmer, R. E.: A histological and histochemical study of digestion in the bivalve Arctica islandica L. Biol. Bull. 156, 115–129 (1979)
Pearsen, A. G. E.: Histochemistry. Theoretical and Applied., Vol. I., 3rd ed., 759 pp. Baltimore, Williams and Wilkins Co. 1968
Platt, A. M.: Studies on the digestive diverticula of Mytilus edulis L. PhD. Thesis, Queen's University, Belfast. (1971)
Purchon, R. D.: Digestion in filter feeding bivalves — a new concept. Proc. malac. Soc. Lond. 39, 253–262 (1971)
Steedman, H. F.: Section cutting in microscopy, 172 pp. Oxford: Blackwell Scientific 1960
U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration (NOAA) and National Ocean Survey (NOS): Tide Tables 1978 high and low water predictions, east coast of North and South America including Greenland, 288 pp. US Government Printing Office 1977
Wilson, J. H. and R. W. LaTouche: Intracellular digestion in two sublittoral populations of Ostrea edulis (Lamellibranchia). Mar. Biol. 47, 71–77 (1978)