文章摘要
陈介康,丁耕芜.海蜇横裂生殖的季节规律[J].水产学报,1984,8(1):55~68
海蜇横裂生殖的季节规律
ON THE SEASONAL REGULARITY OF STROBILATION OF EDIBLE MEDUSA
  修订日期:1992-06-01
DOI:
中文关键词: 团头鲂  器官发育  阶段发育
英文关键词: 
基金项目:
作者单位
陈介康 辽宁海洋水产研究所 
丁耕芜 辽宁海洋水产研究所 
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中文摘要:
      作者对自然海区、育苗室水泥池和实验室玻璃水槽三种生境中海蜇(Rhopilema esculentaKishinouye)的横裂生殖规律进行了三年实验观察,首次对这种水母横裂生殖的发生季节、发育速度、重复次数、产生碟状幼体的数量、以及横裂幼体的畸形发育等提出了报告。
英文摘要:
      The seasonal regularity of strobilation of edible medusa, Rhopilema esculenta,hasbeen observed for three years, the medusa were reared in three different kinds ofhabitats, i. e. the natural sea inlet, the indoor concrete tanks and aquaria in labora-tory. This paper deals with the content about the season of occurance, velocity of pd-eveloment, frequency of repetition of strobilation, number of ephyrae produced andthe development of abnormal strobila of the medusa.The strobilation begin to occur in spring each year when the water temperaturerises up to 13℃, then ephyrae are released at above 15℃. The samo individual canstrobilize repeatedly 6-13 times from the beginning of strobilation in spring to the endof antumnwhen the water temperature falls below 15℃. The first time of strobilationoften produce 5--14 ephyrae. In the course of repetition of strobilation, the number ofephyrae formed each time gradually decreases. The strobilae occurred in summergenerally only poosesses one or two segments. The average developmental period inproducing an ephyra is about 2.1 (i. e. 1-4) days. The shortest and longest intervalsbetween two periods of strobilstion are 3 and 28 days respectively, but generally isabout 10 days. The abnormally developed strobilae can be divided into many categories,i. e. develo pment in deficiency, development in stagation, development in reverseand develo pment in both ends.
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