摘要
通过观测莱州湾海湾扇贝８～１０月内脏得率及向往得率的变化规律，对海湾扇贝的秋季生殖习性进行探讨，认为：海湾扇贝用秋季半人工育苗法替代室内加温育苗法可获得较好苗种。投放采苗袋２０天后，秋苗平均壳高４．９６ｍｍ。产卵前，内脏得率呈上升趋势，之后下降；肉柱得率一直呈上升趋势。
According to survey on its changing law of the adductor-producing rate in haizhou Bayfrom Aug. to Oct.,we enquired into repoduction habit of Argopecten irradians in autumn. We hold that good seeds may be obtained with the method of semi-artificial seed-collecting in autumn instead of the method of indoor seed-rearing by increasing water temperature. After releasing the seed-collecting bags, 20 days later the average shell-height of the autumn seeds was 4. 96mm. Rising trend of the adductor-producing rate of the adult scallops emerged.
出处
《齐鲁渔业》
1995年第6期28-30,共3页
Shandong Fisheries
关键词
海湾扇贝
半人工采苗
秋季
arogpecten irradians
semi-artificial seed-collecting
autumn seed
reproduction habit
adductor-producing rate
