Cladocera

基本解釋

When it was 13 days old,the bait would changed to nauplius of Artemia and baby-size Cladocera、Copepoda.
13日齡后的仔魚開始陸續(xù)投喂鹵蟲無節(jié)幼體和小型的枝角類、橈足類等。
It was found that the dominant organisms in the surface water resources in Xi an were Tubifex, Cladocera and Chironom.
本課題對西安市地表水源中的生物孳生進(jìn)行了近2年的研究,確定出顫蚓、搖蚊幼蟲和枝角類水蚤為本地區(qū)最主要的水生污染種類。
Stomach contents examination of two specimens showed a large volume of Spirogyra sp., Cladocera, sediments (sand) and unidentified organic matter.
從其中兩個樣本的胃中檢驗出到某種水綿，水蛋，沈積物(沙)與不明有機(jī)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.
浮游動物生物量平均1.;10mg·L~(-1);其中橈足類占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.
通過這次調(diào)查，得出以下結(jié)論：大亞灣橈足類種類較多，是浮游動物第一大類群，但數(shù)量上次于毛顎類和枝角類；