淡水生物

Natural heritage declaration will be improved, especially come down to hydrosphere involved ocean, freshwater, mountain and biologic diversity.

这将加快自然类遗产的申报，尤其是涉及水圈的自然遗产，如海洋、淡水、山地及与此有关的生物多样性的自然遗产地的保护成为热点。

Dinomastigota A phylum of the Protoctista containing mainly single-celled marine or freshwater algae that swim in a twirling mannerly by means of two UNDULIPODIA that lie at right angles to each other in two grooves within the organism ' s often stiffened by cellulose plates under the cell membrane.

腰鞭毛虫门：原生生物中的一门。主要包括单细胞的淡水以及海洋藻类。它们可以通过在生物体壁表面两条沟内的两个相互成直角的波动足通过旋转的方式在水中游泳。体壁可以被细胞膜下的纤维素板所加厚。

Resolving the higher-level relationships among ostariophysan and related fishes will aid in resolving basal teleostean divergence and provide basis to historical biogeographic analysis of major freshwater fish groups.

解决骨鳔鱼类及其相关类群的高阶系统发育关系有助于解决基部真骨鱼的分化，而且为主要的淡水类群——世界性分布的耳鳔系鱼类的历史生物地理学分析奠定基础。

But if that theory is correct then bdelloid rotifers, freshwater invertebrates that haven't had sex in at least 30 million years, should have been parasited into extinction long ago.

但是如果这个理论是正确的，那么蛭形轮虫，这种至少已经存活了3千万年的无性繁殖的淡水无脊椎生物，应该早就因为感染寄生虫而灭绝了。

Poyang lake, 4600 square kilometers in the normal flooding level, is the biggest freshwater wetland in china, and famous with its extremely abundant biological variety, especially with a large number of the rare and endangerous species,such as Grits lemcogeranus, G. monacha and Ciconia byciana .

鄱阳湖是中国最大的淡水湖泊湿地，正常洪水位面积4600余平方公里，蕴藏着极其丰富的生物多样性，尤以白鹤、白头鹤和东方白鹳等珍稀濒危越冬候鸟分布数量多且持续稳定而享誉全世界。

Adaptability of plankton to the salinity, alkalinity and pH value, fishery exploitation of biological resources in inland saline waters and use of halophiles or salt tolerant freshwater cladocera as live food for marine fish larvae were discussed.

此外，还讨论了浮游生物对盐度、碱度和pH的适应性、内陆盐水生物资源的渔业利用以及利用盐水或耐盐性淡水枝角类作为海水鱼苗活饵料的前景。

The research areas cover genetic and physiological mechanisms of functioning marine organisms; principles of marine biotechnology; genetic and endocrinological mechanisms in marine fish and invertebrates; genetic polymorphism of some marine and fresh water species; biological role of bacterial bioluminescence in the marine environment etc.

其研究范围广泛，覆盖了多个学科，包括功能性海洋生物的遗传和生理机制、海洋生物技术原理、海洋鱼类和无脊椎动物的遗传和内分泌机制、海水和淡水某些生物的遗传多态性、以及海洋环境中发光细菌的生物学作用等。

Worked out a concrete goal for biodiversity conservation in the area, including to maintain and protect the speciality and intactness of the combined ecosystem of rivers and lakes, to protect freshwater resources, to maintain and restore the natural hydrolgical process of the river system of the area, to protect the core species and their habitats efficiently, to protect and restore the typical zonal vegetation (the subtropical evergreen broad-leaved forest), to forbit introducing the invasive species, and to eliminate or control the settled invasive species.

制定了长江中游生物多样性保护的具体目标，即维持和保护江湖复合生态系统的独特性和完整性；保护淡水资源；维持和恢复长江中游水系的自然水文过程；有效保护核心物种及其栖息地；保护和恢复典型的地带性植被；禁止引进入侵性物种，消灭或控制已经定居的入侵性物种。3。

Floating in fresh water in the drum A Biological Studies, strider insect Pentatomidae; sea water are bacteria, crustaceans, arachnids, and INSECTA animals, occasionally there are worms, gastropods, hydroids class.

生活在水面上或附着在水的表面膜下的生物群，有一定的运动能力。在淡水中的漂浮生物有鼓甲科、黾蝽科昆虫；海水中的有细菌、甲壳纲、蜘蛛纲和昆虫纲动物，偶然有蠕虫、腹足类、水螅类。

The Inter-Institutional Database of Fish Biodiversity in the Neotropics is an international cooperative effort to make available systematic and geographic data on neotropical freshwater fish specimens deposited in natural history collections in the New World and Europe.

&新热带地区鱼类生物多样性国际公共数据库&是一个国际合作项目，其目的是收集新热带地区淡水鱼类的系统数据和地理学数据，所收集的数据被保存在欧洲的自然博物馆里。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。