浮游

Since the quantity of nutrients was higher in 1999 than 1997, it was considered that decrease in these phytoplankton was due to Daphnia grazing.

自99年营养盐含量较高以来，浮游植物减少被视为溞类的摄食所致。

Thrissakarnrnalensis was the basal pelagic phytoplankton feeder,while Trachurus japouicu was commonly feed in seagrass circumstance.GC/C-IRMS analysis was applied to fish,zooplankton and demersal species.

建立GC/C-IRMS技术测定生物体单分子脂肪酸碳稳定同位素的方法，应用于长江口毗邻海域主要生物种类带鱼、小黄鱼、黄鲫等海洋鱼类，桡足类、箭虫、水母等浮游动物，中国毛虾、周氏新对虾、中华管鞭虾等底栖生物的研究。

Younger Dryas is characterised by increased dinocyst influx and Operculodinium cetrocarpum content.O.cetrocarpum assemblage should be indicative of the cool and nutrient surface seawater,different from Spiniferites spp.assemblage or Protoperidinioid cyst assemblage reflecting respectively warm and cold sea-surface conditions.

通过92个样品分析，发现南海北部陆坡末次冰期以来沉积物中有机壁浮游藻类输入通量在新仙女木期和早全新世明显高于其它时期，新仙女木期的输入通量峰值及不同于Spiniferites spp。

Adult Cyclops, with body length of one to several millimeters, may be caught by naked eye to bring consumers unsanitary sense and may become disease transmission medium as the host of pathogenic parasite, like schistosome and eelworm, to threaten human health. So Cyclops needed be effectively removed to ensure drinking water security.

剑水蚤类浮游动物在用户水中出现，不仅违反了生活饮用水卫生标准中对感官性状指标的规定，给用户带来了不良的感官影响（剑水蚤体长可达1～几个mm，肉眼可见），容易引起用户对水质信心的下降与恐慌，更为重要的是大多数剑水蚤是诸如血吸虫、线虫等水中致病生物的中间宿主，从而成为传播疾病的一个重要媒介，给人们的用水安全问题带来了很大的威胁。

Results showed that 57 species in total were identified. Among them copepod was the dominant group, containning 20 taxa. The zooplankton community was composed of 18 rotatoria species, 8 cladocera species, 2 tunicata species, and 1 species in each of Protozan, polychaeta, heteropoda, medusae and euphausiacea, and 2 species unidentified.

经鉴定有浮游动物57种，其中桡足类占优势，有20种；其次为轮虫和枝角类，分别为18和8种；此外，被囊动物2种，原生动物、多毛类、异足类、水母类、糠虾类各1种；还有阶段性各种幼虫以及未知种类2种。

The phytoplankton can be divided into five components: a fresh water component inside the river mouth, a true estuarine component, a coastal component, a euryhaline marine component, and a high salinity component.

长江口的浮游植物基本可归为5个类群：淡水类群，河口半咸水类群，近岸低盐性类群，外海高盐类群，海洋广布性类群。

However, although marine planktonic foraminiferal boron isotope has great potential to be a proxy for atmospheric pCO2, further studies on calibrations are required.

不过，尽管海洋浮游有孔虫中的硼同位素作为大气二氧化碳浓度的替代指标很具有潜力，但还需要进行更加深入地研究。

In addition, planktonic foraminiferal species of P. obliquiloculata shows a good relation with the oxygen isotope record and acts as a paleoceanographic indicator even during the last glacial in the Okinawa Trough.

此外，浮游有孔虫Pulleniatina obliquiloculata与氧同位素记录有很好的对应关系，表明它是冲绳海槽末次冰期以来的一个可靠的海洋环境指标。

The study focus on the distribution patterns of modern and fossil benthic foraminiferal fauna and their relationship with environmental variables, and the physical and chemical properties of the deep water.

本项目以西太平洋边缘中、深层水体为对象，利用微体古生物学、生物地球化学和年代学方法，通过对现代底栖有孔虫分布特征及其环境控制因子、柱状岩芯中底栖有孔虫属种和形态类型的分布特征、底层水体的温度及营养水平、各主要古环境演化事件时期浮游和底栖有孔虫14C年代学特征等主要内容的研究，综合探索了晚第四纪以来西太平洋边缘中层和深层水体的性质和流通状况的演化史。

In the past several decades,great achievements have been made by the marine foraminiferal boron isotope researches on the following aspects:analytical techniques,offsets between laboratories,isotopic fractionation factor,long-term changes in.

海洋浮游有孔虫中的硼同位素能够反映海水酸碱度的变化，从而为重建大气二氧化碳浓度的变化提供了一种新的手段，有望提供目前极地冰心记录所无法企及的百万年甚至千万年时间尺度上的大气二氧化碳浓度的变化。

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。