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标题：Effect of Food and Temperature on the Growth and Development of Moina irrasa (Cladocera: Moinidae)
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作者：Daogui Deng ; Ping Xie
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2003
卷号：18
期号：4
页码：503-513
DOI：10.1080/02705060.2003.9663991
出版社：Taylor & Francis
摘要：Body length, instar duration, fecundity, and survival rate of Moina irrasa from a subtropical Chinese lake were studied at three food concentrations (4, 8, and 40 mg/L, wet weight) and six temperatures (10, 15, 20, 25, 30, and 35°C) in the laboratory. Body length tended to decrease with increase of temperature, while the trend was reversed as food concentration rose. M. irrasa had three juvenile instars, except there were four at 10°C, and the number of adult instars showed great variation (3-15). Water temperature and food concentration both affected the duration time of adult instars. The largest broods were from the third to sixth adult instars, depending on food and temperature, and the mean highest number of offspring per brood was 56 at 25°C. A significant relationship between body length and brood size appeared at high (40 mg/L) and medium (8 mg/L) food concentrations, while there was no significant relationship at low food concentration except at 25°C. The intrinsic rate of population increase ranged between 0.104 and 1.825 ind./day.