Cladocera

常见例句

• When it was 13 days old,the bait would changed to nauplius of Artemia and baby-size Cladocera、Copepoda.
  13日龄后的仔鱼开始陆续投喂卤虫无节幼体和小型的枝角类、桡足类等。
• It was found that the dominant organisms in the surface water resources in Xi an were Tubifex, Cladocera and Chironom.
  本课题对西安市地表水源中的生物孳生进行了近2年的研究,确定出颤蚓、摇蚊幼虫和枝角类水蚤为本地区最主要的水生污染种类。
• Stomach contents examination of two specimens showed a large volume of Spirogyra sp., Cladocera, sediments (sand) and unidentified organic matter.
  从其中两个样本的胃中检验出到某种水绵，水蛋，沈积物(沙)与不明有机碎屑。
• The average biomass of zoo-plankton is 1. 10 mg/1, in which the copepoda presented 30. 9%, the cladocera - 24. 5%. The rotifera and protozoa are 26.4%. and 18.2%, respectively.
  浮游动物生物量平均1.;10mg·L~(-1);其中桡足类占30
• Through this survey we could got such conclusion.Among zooplankton, the species of Copepods was the most, but its abundance was fewer than that of Chaetognatha and Cladocera.
  通过这次调查，得出以下结论：大亚湾桡足类种类较多，是浮游动物第一大类群，但数量上次于毛颚类和枝角类；
• Therefore, fish's predatory control on zooplankton is higher in shallow lakes, resulting in less possibility of grazer control of algae by the Cladocera.
  “下行效应”在浅水湖泊中可能更为重要，因此浅水湖泊中滤食性鱼类对浮游动物的捕食控制可能更强，导致枝角类几乎不可能通过牧食控制藻类的生长。
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