浮游

During one year study,32 species（22 Cladocera and 10 Copepoda）were found.

全年中，共发现浮游甲壳动物32种，其中枝角类22种，桡足类10种。

Phytoplankton biomass increase coincided with the decrease in large Cladocera density and size.

浮游植物的生物量增长与大型枝角类密度和体型下降相一致。

During one year study,32 species22 Cladocera and 10 Copepodawere found.

全年中，共发现浮游甲壳动物32种，其中枝角类22种，桡足类10种。

One pond lacking submerged macrophytes could maintain very low phytoplankton biomass owing to large Cladocera grazing alone.

在一个缺乏大型沉水植被的池塘可能会维持较低的浮游植物生物量由于大型枝角类的单一摄食。

Besides Copepoda, Medusae, Cladocera, Mysidacea also played an important role in maintaining the structure and function of estuarine ecosystem.

除桡足类之外，水母类、枝角类、糠虾类等其它浮游动物在维持河口生态系统结构与功能上也具有重要作用。

It can be seen that the species composition of zooplankton comprised mainly of protozoa,followed by rotifers,copepods and cladocera,with an average density of 3.98×10~3ind/L.

从中可看出浮游动物种类组成以原生动物为主，其次是轮虫，桡足类和枝角类最少，平均密度为3.98×10~3ind/L。

Species of zooplankton were identified in Qiaodun Lake, with 45 being protozoa, 37 rotatoria, 19 cladocera, 6 copepoda.

上述湖泊浮游动物无论是种类组成还是密度均以小型的原生动物和轮虫占绝对优势。

60 Species of zooplankton were identified, among which there were Rotifera 34 species, Copepoda 13 species, Cladocera 6 species, among which Rotifera has an dominance for 55.02%, especially Brachionus sp.

浮游动物共鉴定到60种，其中轮虫有34种，桡足类13种，枝角类有6种。

Both of amount of 54 ind/L and 95 ind/L were found from cladocera of 8 species as well as Copepoda of 6 species and their proportion of 28.57% and 21.43% were recorded.

浮游动物28个种属，其中轮虫14个种属，数量137 ind/L，占50%；枝角类8个种属，数量54 ind/L，占28.57%；桡足类6个种属，数量95 ind/L，占21.43%。

Temporal changes in zooplankton composition occurred in both ponds with Cladocera appearing in abundance later, in the fourth week, whereas copepods and rotifers were well represented since the beginning.

浮游动物组成短暂的变化在两个塘同时出现随着枝角类较晚出现一定丰度，在第四周左右，然而桡足类和轮虫自开始就出现。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。