摘要
在海蜇(Rhopilema esculenta Kishinouye)生活史的多次变态过程中,横裂生殖(Strobilation)是一个重要环节。人们食用的是海蜇水母型成体,其性成熟水母有性生殖所产生的无性世代水螅型,必须通过横裂生殖才能再产生有性世代水母型。因此,阐明海蜇横裂生殖的规律及其与环境条件的关系,对发育生物学研究,以及人工培育大量海蜇幼水母用于水产增殖实践都具有重要作用。
The scyphistomae of Bhopilema esculent a were cultivated in natural light,translucent natural light and dark conditions in the laboratory.The effect of light on the strobilation of the medusa was observed.It was shown that light appeared to be a stimulative factor to induce the strobilation of scyphistomae.The strobilation rate of the scyphistomae population was related to light intensity at low preconditioning temperature(12-7℃)and in the period following induction of rising temperature(22°±1℃).In the absence of light,the strobilation would be delayed or inhibited at either temperature.In addition,it was found that the mortality rate of scyphistomae population appeared to increase with light intensity increasing at low preconditioning temperature,and the survival rate appeared to be higher in the dark condition.
作者
陈介康
丁耕芜
刘春洋
Chen Jiekang;Ding Gengwu;Liu Chunyang(Liaoning Marine Fisheries Research Institute,Dalian)
出处
《海洋与湖沼》
1984年第4期310-316,共7页
Oceanologia Et Limnologia Sinica
