Abstract
Plankton samples and gut contents of P. margaritifera were analysed monthly from April 1972 to March 1973. Coscinodiscus sp. was the most ingested food by pearl oysters of all ages. However, food variety increased as the oyster grew older. Experiments confirmed the absence of food selectivity in P. margaritifera. Unlike the young ones, the adult showed reduced growth during summer (July–September), which coincides with its spawning season.
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References
Allen, W., 1914. The food and feeding habits of freshwater mussels. Biol. Bull. 27: 127–141.
Churchil, E. P. & Lewis, I., 1924. Food and Feeding in freshwater mussels. Bull. U.S. Bur. Fish. 39: 439–471.
Crossland, C., 1911. Reports on the Marine Biology of the Sudanese Red Sea. XVIII. A Physical Description of Khor Dongonab, Red Sea. J. linn. Soc. 31: 265–286.
Crossland, C., 1931. The pearl shell farm at Dongonab on the Red Sea. Sudan Notes Rec. 14: 163–170.
Crossland, C., 1957. The cultivation of the mother-of-pearl oyster. Aust. J. mar. Freshwat. Res. 8: 111–130.
Grave, C., 1916. The process of feeding in the oyster. Science 44: 178–181.
Herdman, W. A., 1903. The Pearl Oyster Fisheries of the Gulf of Manaar. Report to the Government of Ceylon. Part 1, The Royal Society, London, pp. 125–146.
Kellogg, J. L., 1915. Ciliary mechanisms of lamellibranchs. J. Morphol. 26: 231–245.
Lotsy, J. P., 1895. The food of the oyster, clam, and ribbed mussel. U. S. Commission of Fish and Fisheries, Part 19, Report of the Commissioner for the year ending June 30, 1893, pp. 375–386.
Moore, H. B., 1949. The zooplankton of the upper waters of the Bermuda area of the north Atlantic. Bull. Bingham Oceanogr. Coll. 12: 1–97.
Moore, H. F., 1910. Volumetric studies of the food and feeding of oysters. Bull. U.S. Bur. Fish., 28: 1295–1308.
Nelson, C., 1924. Food and feeding of the oyster. Report of the Department of Biology of the New Jersey Agricultural College Experiment Station, New Brunswick, New Jersey, for the year ending June 30, 1923. Published by the St. Trenton, N. J., pp. 197–199.
Orton, J. H., 1928. On rhythmic periods in shell growth in Ostrea endulis with a note on fattening. J. mar. biol. Ass. U.K. 15: 365–427.
Quale, D. B., 1952. The rate of growth of Venerupis Pullastra (Montagu) at Millport, Scotland. Proc. r. Soc. Edinb. B., 64: 348–406.
Reed, W., 1964. The pearl shell farm at Dongonab Bay. Sudan Notes Rec. 45: 158–163.
Weymouth, F. W., 1923. The life history and growth of the Pismo clam (Tivela stultorum). Calif. Fish. Game Bull., No. 7.
Wickstead, J. H., 1958. A survey of the larger zooplankton of Singapore Straits. J. Cons. int. Exlor. Mer. 23: 341–352.
Yonge, C. M., 1923. Studies on the comparative physiology of digestion. I. The mechanism of feeding, digestion, and assimilation in the lamellibranch Mya. Br. J. exp. Biol. 1: 15–63.
Yonge, C. M., 1960. Oysters. Willmer Brothers & Harman, London, 209 pp.