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温度和饵料丰度对海蜇水母体生长的影响
鲁男, 蒋双, 陈介康
辽宁省海洋水产研究所 大连 116023
摘要:
于1989年3月，以伞弧20mm的幼海蜇为材料，在盐度20和投喂卤虫无节幼体条件下，研究温度和饵料丰度对其生长的影响，并于1994年8月做了补充实验。结果表明，幼蜇生长的最适水温为24℃，存活的上限和下限温度分别为34℃和8℃。在24℃中，幼蜇平均日生长率（Y；％）与投饵频次（X；次／d）的关系式为Y=12.89－4.06／X。投饵频次以4－5次／d最佳，投饵间隔时间超过76h则呈负生长。
关键词:  海蜇  水母体  生长  温度  饵料丰度
DOI：
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基金项目:国家自然科学基金资助项目，3880639号
EFFECT OF TEMPERATURE AND FOOD ABUNDANCE ON THE GROWTH OF JELLYFISH (RHOPILEMA ESCULENTA KISHINOUYE)
Lu Nan, Jiang Shuang, Chen Jiekang
Liaoning Research Institute of Marine Fiskeries. Dalian 116023
Abstract:
The effect of temperature and food abundance on the growth of jellyfish (Rhopilema esculenta) of umbrella arc length of 20 mm was studied in Mar. 1989 at salinity of 20 and fed nauplius.(Artemia). The results were as follows: The optimum growth temperature was 24°C. The favourable temperature was 16 - 28°C. The temperature upper limit of jellyfish growth was 34°C, the lower limit was 8°C. At 24°C, the relationship between average daily growth rate (Y) and feeding frequency (X) was Y=12.89－4.06／X. The theoretical upper limit of average daily growth rate of jellyfish was 12.89. The favourable feeding frequency was 4 - 5 times/day. When the interval between feedings was more than 76 h, the growth of jellyfish stopped and atrophied.
Key words:  Rhopilema esculenta, Jellyfish, Growth, Temperature, Food abundance
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