文章摘要
郭平.营养条件对海蜇螅状体形成足囊及足囊萌发的影响[J].水产学报,1990,14(3):206~211
营养条件对海蜇螅状体形成足囊及足囊萌发的影响
EFFECT OF NUTRITIONAL CONDITION ON THE FORMATION AND GERMINATION OF THE PODOCYST OF SCYPHISTOMAE OF RHOPILEMA ESCULENTA KISHINOUYE
投稿时间:1989-05-01  修订日期:1990-03-01
DOI:
中文关键词: 根口水母  海蜇  足囊  营养
英文关键词: Rhizostoma  Rhopilema esculenta  podocyst  nutrition
基金项目:
作者单位
郭平 辽宁省海洋水产研究所 大连 
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中文摘要:
      用卤虫(Artemia)无节动体作为海蜇(Rhopilema esculenta)螅状幼体的饵料,按不同投饵频次划分为7个营养水平,考察不同营养水平对海蜇螅状体形成足囊及足囊萌发的影响。结果表明,营养条件不仅对螅状体形成足囊的数量有直接影响,而且对足囊萌发也有明显的间接影响。在具备丰富的营养条件下,螅状体形成足囊活跃,个体大,易于萌发;缺乏营养则抑制足囊形成,即使形成足囊,个体也小,不萌发或萌发率很低。
英文摘要:
      The scyphistomae of Rhopilema esculenta were cultivated under different nul,ritional conditions in Laboratory. Seven groups were divided, and fed with freshly hatched naupill of Artemia sp.Feeding intervals were 1, 2, 4, 7,14, 21 and 28 days for each group respectively. The effect of nutrition on the formation and germination of the poaocyst were observed. The scyphistomae produe e 7 .4 po-docysts on the average under feeding each day, and germinating rate can reach 28.6%.In lack of nutriment, the formation of podacyst is inhibited or very few.The scyphistomae would produce only 1.1 podocysts on the average under malnutri-tion, and germinating rate is scarce or unable to germinate. It indicates that the number of podoeyst formed and germinating rate are closely related to nutrient level of scyplaistomae.
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