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| UV-B辐射增强对壶状臂尾轮虫种群增殖的影响 | |
| 引用本文： | 王进河,冯蕾,唐学玺.UV-B辐射增强对壶状臂尾轮虫种群增殖的影响[J].海洋环境科学,2009,28(4). |
| 作者姓名： | 王进河 冯蕾 唐学玺 |
| 作者单位： | 1. 中国海洋大学,生命学院,山东,青岛,266003;东营市海洋与渔业局,山东,东营,257091 2. 东营职业学院,农业工程系,山东,东营,257091 3. 中国海洋大学,生命学院,山东,青岛,266003 |
| 基金项目： | 国家自然科学基金，山东省优秀中青年科学家科研奖励基金，中国博士后科学基金，东营职业学院博士科研基金 |
| 摘 要： | 运用群体累计培养的方法研究了UV-B辐射增强对壶状臂尾轮虫(Brachionus urceus)种群增殖的影响.结果表明:UV-B辐射增强对壶状臂尾轮虫的种群数量、雌体抱卵率和种群增殖率都有显著影响(P<0.05).实验表明,在本实验辐射强度(20μW/cm2)和剂量范围内(0.24、0.48、0.72、0.96和1.20kJ/m2),壶状臂尾轮虫的种群数量和种群增殖率均以对照组最高,各UV-B辐射处理组则随UV-B辐射剂量的增大而呈一致性减小,说明该种群的种群数量和种群增殖率随UV-B辐射的增强显示一致性的影响,两者都可以作为大气UV-B辐射强弱的生物指标. |
| 关 键 词： | UV-B辐射 壶状臂尾轮虫 种群数量 雌体携卵率 种群增殖率 |
Effects of UV-B radiation on population growth of rotifer Brachionus urceus |
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| WANG Jin-he,FENG Lei,TANG Xue-xi.Effects of UV-B radiation on population growth of rotifer Brachionus urceus[J].Marine Environmental Science,2009,28(4). | |
| Authors: | WANG Jin-he FENG Lei TANG Xue-xi |
| Institution: | 1.Marine Life College;Ocean University of China;Qingdao 266003;China.2.Dongying City Ocean and Fishery Bureau;Dongying 257091;China.3.Department of Agricultural Engineering;Dongying Vocational College;China |
| Abstract: | The effects of UV-B radiation on population growth of rotifer Brachionus urceus were studied using the method of population accumulative culture. The results showed that the population numbers, the percentage of egg-bearing females relative to the total number of females and population growth rate of rotifer Brachionus urceus were significantly affected by UV-B radiation (P<0.05). At the experimental intensity of 20μW/cm2and in the dose range studied (0.00, 0.24, 0.48, 0.72, 0.96 and 1.20kJ /m2), both the population number and growth rate was the highest in the control and decreased with the increment of UV-B radiation. In addition, the population number and growth rate of rotifer Brachionus urceus showed a similar tendency of decrease with the dose increase of UV-B radiation. Both of them could be used as an ideal biomarker for the enhancement of UV-B radiation. |
| Keywords: | UV-B radiation Brachionus urceus population number the percentage of egg-bearing females population growth rate |
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