Studies on propagation of Ezo abalone, Haliotis discus hannai Ino-II. The appearance and growth of 0-year-old Ezo abalone.
Studies on propagation of Ezo abalone, Haliotis discus hannai Ino-II. The appearance and growth of 0-year-old Ezo abalone.
复制标题
虾夷鲍、皱纹盘鲍的繁殖研究。
DOI：
10.2331/suisan.47.1393
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发表时间：
1981
影响因子：
0.4
通讯作者：
K. Saito
中科院分区：
文献类型：
--
作者：
K. Saito
1974年9月至1975年11月，在北海道南部的种子移植地丰浦市对0岁虾夷鲍鱼的外观和生长进行了研究。 1976 年 11 月至 1977 年 12 月在奥尻岛的一部分进行了同样的研究，该岛是丰浦种子供应的来源。在丰浦市，0岁鲍鱼从11月开始出现，自12月起已停止生长5个月。他们在长度为 21 至 22 毫米的贝壳上获得了第一个环。幼鲍的存活率很低，可能是由于3月初水温低至0至1℃。在奥尻岛，12月发现了当年出生的幼鲍，壳长3.1毫米。从第二年6月到12月，它们继续以每月2毫米的速度生长，然后停止生长，并在16.8毫米长的贝壳上获得第一个环。尽管冬季鲍鱼生存的水源条件良好，温度始终在3℃以上，但生长速度却低于丰浦贝壳生长最差的备之崎。
Studies on the appearance and growth of 0-year-old Ezo abalone, were made from September 1974 to November 1975 in Toyoura, which were seed-transplanted grounds in south Hokkaido. The same studies were made from November 1976 to December 1977 in one part of Okushiri Island, which is the source of seed supply for Toyoura. In Toyura, 0-year-old abalones began to appear in November, and ceased to grow for five months since December. They acquired the first annulus on shells of 21 to 22mm in length. The viability of young abalones was quite low, probably owing to the low water temperature of 0 to 1°C in early March. In Okushiri Islang, young abalones born in that year were found in December, with 3.1 mm-long shells. They continued to grow by 2mmin length per month from June of the next year to December, and then stopped growing and acquired the first annulus on 16.8mm-long shells. In spite of the good water condition for abalone survival in winter, always above 3°C in temperature, the growth rate there was lower than in Binosaki, the poorest place in shell growth in Toyoura.