【作者】 林志华； 王铁杆； 夏彩国；

【Author】 Lin Zhihua (Zhejiang Mariculture Research Institute,Wenzhou 325005)

【机构】 浙江省海洋水产养殖研究所；

【摘要】 管角螺在浙江沿海的繁殖季节是4～6月份,以卵囊形式繁殖后代,胚胎发育属直接发生型。作者1994年在水泥池中,暂养280个产卵亲贝,共获取5990个卵囊, 经40～45天孵化,共获125400颗稚螺,壳高2．4～4．2mm,体重8．3～12．5mg,并对稚螺培育及多种生态因子进行观察。更多还原

【Abstract】 The results of this study indicated that the reproduction period of Hemifusus tuba along the coast of Zhejiang Province is from April to June,when,after the parent snails copulat,the females spawn egg-capsules.In 1994,5990 egg-capsules were obtained from 280 spawning conches and 125400 juveniles were produced.This paper outlines ecologial factors,and requirement such as temperature,salinity,pH,diet,etc.favorable for seed production.更多还原