UV-B辐射增强对壶状臂尾轮虫摄食的影响  

Effects of UV-B radiation on the feeding of the rotifer Brachionus urceus

作　　者：冯蕾[1,2] 王洪水[1] 潘蔚[1] 周文礼[3] 唐学玺[3] 

机构地区：[1]东营职业学院 [2]中国海洋大学海洋生命学院,山东青岛266003 [3]中国海洋大学海洋生命学院

出　　处：《海洋科学》2006年第9期31-35,共5页Marine Sciences

基　　金：国家自然科学基金资助项目(30270258;40506028);山东省优秀中青年科学家科研奖励基金项目(03BS120);中国博士后科学基金项目(2005037237)

摘　　要：研究了UV-B辐射条件下壶状臂尾轮虫(Brachionusurceus)对6株海洋微藻:小球藻(Chlorellasp.)、绿色巴夫藻(Pavlovauiridis)、扁藻(Tetraselmischuii)、球等鞭金藻8701(IsochrysisgalbanaPark8701)、牟氏角毛藻(Chaetocerosmuelleri)和小新月菱形藻(Nitzschiaclostertum)的室内摄食实验。结果表明,UV-B辐射增强对壶状臂尾轮虫的摄食有显著的抑制作用。与对照组相比,壶状臂尾轮虫对给定饵料单胞藻的滤水率和摄食率都随UV-B辐射剂量的增大而显著减小(P<0.05)。而且壶状臂尾轮虫对每一种饵料单胞藻的滤水率和摄食率是不相同的,这说明壶状臂尾轮虫对饵料单胞藻是有选择性的。The feeding of the rotifer Brachionus urceus for six strains of marine microalgae（Chlorella sp., Pavlova uiridis, Tetraselmis chuii, Isochrysis galbana Park 8701, Chaetoceros muelleri Lermumerman and Nitzschia clostertum） under the treatment of UV-B radiation was studied. The results show that the feeding of the rotifer B. urceus is inhibited significantly by UV-B radiation treatment （P〈0.05） . Compared with control, the filtering rate and feeding rate of the rotifer B, urceus are significantly lower （P〈0.05） with increasing dose of UV-B radiation. In addition, the filtering rate and feeding rate of the rotifer B. urceus vary with the studied marine microalgae. This result indicates that the rotifer B. urceus feeding is selective on the six strains of marine microalgae.

关 键 词：UV-B辐射 壶状臂尾轮虫(Brachionus urceus) 摄食率 滤水率 饵料单胞藻 抑制作用 

分 类 号：S963.21[农业科学—水产养殖]