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生态学杂志 ›› 2011, Vol. 30 ›› Issue (09): 2019-2025.

• 研究报告 • 上一篇    下一篇

营养强化时褶皱臂尾轮虫对饵料微藻的摄食

李磊1,2,朱小明3**,吴洪喜1,2   

  1. 1浙江省海洋水产养殖研究所, 浙江温州 325005;2浙江省近岸水域生物资源开发与保护重点实验室, 浙江温州 325005;3厦门大学海洋与环境学院, 福建厦门 361005
  • 出版日期:2011-09-08 发布日期:2011-09-08

Feeding of rotifer Brachionus plicatilis enriched with microalgae.

LI Lei1,2, ZHU Xiao-ming3**, WU Hong-xi1,2   

  1. 1Zhejiang Mariculture Research Institute, Wenzhou 325005, Zhejiang, China; 2Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bio-resource, Wenzhou 325005, Zhejiang, China; 3College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, Fujian, China
  • Online:2011-09-08 Published:2011-09-08

摘要: 选取适宜浓度利用单种微藻和混合微藻对轮虫进行营养强化,采用实验生态学方法研究了轮虫滤水率和摄食率的动态变化。结果表明:微藻浓度、微藻种类和培养时间均对轮虫的滤水率和摄食率有显著影响;轮虫对几种单种微藻的滤水率和摄食率均随培养时间的延长而下降,在实验条件下,6 h内轮虫对3种微藻的滤水率大小顺序为小球藻>球等鞭金藻>牟氏角毛藻,12 h内轮虫对3种微藻的滤水率大小顺序则为球等鞭金藻>小球藻>牟氏角毛藻;轮虫在混合微藻中的选择顺序为球等鞭金藻>小球藻>牟氏角毛藻。

关键词: 异色瓢虫, 杀虫剂, 亚致死效应, 繁殖力, 生态毒理学

Abstract: By the methods of experimental ecology, this paper studied the dynamic changes of the filtration and ingestion rates of Brachionus plicatilis enriched with single and mixed microalgal diets at optimum concentrations. The microalgal concentration, microalgal species, and culture duration all had significant effects on the filtration and ingestion rates of B. plicatilis. The filtration and ingestion rates of  B. plicatilis to the diets decreased with increasing culture duration. Under the experimental conditions, the filtration rate of B. plicatilis to the microalgae within 6 hours was in the order of Chlorella sp. > Isochrysis galbana > Chaetoceros muelleri, while that within the whole experimental duration (12 hours) was Isochrysis galbana > Chlorella sp. > Chaetoceros muelleri. The predation of B. plicatilis fed by mixed microalgal diet was with a preferential order of Isochrysis galbana > Chlorella sp. > Chaetoceros muelleri.

Key words: Harmonia axyridis, Insecticides, Sublethal effect, Fecundity, Ecotoxicology