アコヤガイ ( Pinctada martensii ) のタンク内人工飼育

摘要: Artificial breeding of Japanese pearl oyster, Pinctada martensii was carried out, following the culture method devised by Prof. T. Imai and others Onagawa Fisheries Laboratory Tohoku University, successful settling spat obtained. The development larvae is illustrated in Figs. 1-9, Shell size at time unbo-deve-lopment 90-110 μ height 100-110 length. Settling occurred when reached 170-200 200-250 In thank No. c-1 with a capacity 8, 000 litre, it possible to obtain over 137 thousands spat, 17.1 per cent number straight hinge veligers set free start. records cultures are summarized Tables 2-5.