イシガニ幼生の変態成長について
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概要
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The artificial rearing of the larva of Charybdis japonica was caried out in our laboratory, and we succeeded in rearing through the metamorphosis from hatching to the youngest adult from clab. The zoea larva was fed on the larva (morula and trochophora) of Ostrea gigas or on the nauplius larva of Balanus amphitrite albicostatus. Zoeas moult 6 times, after which they become megalopas. The quickest zoea moult 6 times within 18 days at water temperature of from 27°C. to 30°C. in summer. On the metamorphosis of zoea, we can observe the numeral increasing on the zoea-characteristic body parts and the development of megalopa-characteristic organs. The growth coefficients of zoea of 2 nd. and 3 rd. moulting is higher than those of 1 st., 4 th. and 5 th. moulting.
- 公益社団法人 日本水産学会の論文