冯蕾,唐学玺,王仁君,肖慧,李杨

• 1:中国海洋大学海洋生态实验室
• 2:东营职业学院 山东东营257091
• 3:中国海洋大学海洋生态实验室
• 4:中国海洋大学海洋生态实验室

摘要(Abstract)：

运用生态毒理学方法研究了UV-B辐射对褶皱臂尾轮虫(Brachionusplicatilis)和壶状臂尾轮虫(Brachionusurceus)的致死效应,旨在为阐明UV-B辐射对海洋生态系统的影响和建立指示UV-B辐射的生态毒理学指标体系提供科学依据。结果表明:UV-B辐射对2种轮虫都有严重的伤害作用,且当辐射强度达一定强度阈值会对其产生急性致死作用。实验测得:UV-B辐射对2种轮虫的急性致死强度阈值为:(50±10)μW/cm2;24h,48h和96h的半致死剂量:褶皱臂尾轮虫为4.393,2.694和1.720kJ/m2;壶状臂尾轮虫为5.856,4.516和1.730kJ/m2。由此可知,本实验UV-B辐射剂量范围和观察时间内,褶皱臂尾轮虫在UV-B辐射处理后的24h和48h内对UV-B辐射的敏感性相对要大于壶状臂尾轮虫,而在UV-B辐射处理后的96h内2种轮虫对UV-B辐射的敏感性则相近。

关键词(KeyWords)： UV-B辐射;致死效应;褶皱臂尾轮虫;壶状臂尾轮虫;急性致死强度阈值;半致死剂量

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(39870146,40506028);; 国家高技术研究发展规划项目(2002AA648010);; 山东省优秀中青年科学家科研项目(03BS120);; 中国博士后科学基金(2005037237)资助

作者(Author): 冯蕾,唐学玺,王仁君,肖慧,李杨

DOI: 10.16441/j.cnki.hdxb.2006.03.016

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