淡水生物

The amoeba, a denizen of fresh water , is such a case

变形虫，一种淡水生物，就是这种情况。

The goal of this dissertation is to develop a novel freshwater clam Corbicula fluminea-based on-line bimonitoring system as a bioassay tool to offer a real-time and cost-effective method to measure copper and cadminm concentrations in natural water resources.

本论文提出一崭新淡水亚洲蚬为基础之线上生物监测系统作为生物鉴定工具，提供一即时且有效低成本量测法以侦测自然水资源中铜或镉浓度。

Description: This is website contains large quantity information on Marine organisms and fresh-water Organisms information.

网站描述：这是一个具有大量高质量的海水和淡水生物信息的网站。

Darwin discussed about some anomalous forms in fresh water basins, which belong to the remnants of some interesting orders. Because these anomalous forms exhibit the anomaly of geographical distribution e.g. Ganoid fishes, or morphological anomaly such as Ornithorhynchus and Lepidosiren , they may be called living fossils. It is believed that Darwin presented the facts of the above anomalous forms, and used the term "living fossil" in order to further illustrate the subject of "Circumstances Favorable for the Production of New Forms Through Natural Selection" in Chapter IV. The term "living fossil" appears on page 486 again in the last Chapter, i.e. Chapter XIV "Recapitulation and Conclusion", where Darwin emphasized the significance of so-called "living fossils".

第一次在该书第四章"自然选择"（第107页）：为了在该章深刻阐述"通过自然选择产生生物新类型的有利条件"这一主题，达尔文谈到了淡水流域中残存着地理分布或形态上很异常的一些生物，如：硬鳞鱼、鸭嘴兽和美洲肺鱼，可以称之为"活化石"；第二次是在该书最后一章"复述与结论"（第486页），达尔文对"活化石"的作用进行了小结。

Institute of Hydrobiology, Chinese Academy of Sciences, State Key Laboratory of Freshwater Ecology and Biotechnology

中国科学院水生生物研究所，淡水生态与生物技术国家重点实验室

Institute of Hydrobiology, The Chinese Academy of Sciences; State Key Laboratory of Freshwater Ecology and Biotechnology, Wuhan 430072

中国科学院水生生物研究所；淡水生态与生物技术国家重点实验室，武汉 430072

Physiological Responses of Hybrid Striped Bass to Aqueous Copper copper is an abundant trace metal, and although essential at low levels, it is also potentially toxic to aquatic organisms.Mechanisms of toxicity and consequences of exposure vary depending on ionoregulatory status(acclimated to freshwater or salt water).The goal of this research was to examine the responses of hybrid striped bass(Morone chrysopsXMorone saxatilis)exposed to Cu in freshwater and 15g/L salt water.In freshwater,a general dose-and time-dependent pattern of increasing Cu accumulation in gill tissue was evident in fish exposed to aqueous Cu(220 and 447 mg/L)for up to 96 hours.The 96-horu acute median lethal concentration for freshwater-acclimated hybrid striped bass exposed to Cu was 94mg/L(confidence interval=62 to 144mg/L).

生理反应到水的混合条纹鲈鱼铜是一个丰富的微量金属，虽然至关重要，它是在较低的水平也可能对水生生物有毒毒性机制及其后果的曝光取决于ionoregulatory状态，本研究的主要目的是为了检查的反应chrysopsXMorone混合条纹鲈鱼暴露于铜在淡水和15 / L盐水在淡水，一般dose-and时变模式日益增长的铜积累鱼鳃组织显然暴露于含水的铜(220和447毫克/升)长达96小时96-horu致命的平均浓度为freshwater-acclimated急性混合条纹鲈鱼暴露于铜被94mg / L(=置信区间来144mg / L)62 osmolatity、钠浓度降低。

The levels of PBDEs in water snake, fish, prawn and Chinese mysterysnail ranged 39.6~186, 1.82~75.7, 4.60~17.1 and 7.26~17.0μg·g-1, respectively.

为调查电子垃圾回收活动对当地水生生物造成的多溴联苯醚污染，测定了广东某电子垃圾回收地附近水库中水生生物样品（水蛇、鱼类、草虾和田螺）和对照区样品中18种PBDEs含量，通过对样品氮同位素的测定，探讨了PBDEs在该地淡水食物链上的生物富集特征。

In the study XRD, FT-IR, PCR amplificator, 373A DNA sequencer, GC, electrophoretogram and TEM apparatuses and so forth are used to give a way for accurately scientific research. It chooses two kinds of petrochemical industry wastewater as object of study. One is the mixture of seawater and freshwater and the other is freshwater. In the course of the research, the two kinds of petrochemical wastewater are studied in the laboratory and refinery by using CBDS, and it has got a good result.

在研究过程中，选择了海淡混合水和淡水石油化工废水作为复合生物脱氮的研究对象，利用生物反应器、气相色谱仪、X-射线衍射仪、PCR扩增仪、DNA序列分析仪、电泳仪、扫描电镜和透射电镜等仪器设备，研究了CBDS生物体系和生物载体系统，并确定了石油化工废水复合生物脱氮工艺最佳操作条件。

Worms of the class Oligochaeta, including the earthworms and a few small freshwater forms.

寡毛纲动物任一寡毛纲环节软体虫，包括蚯蚓和一些小的淡水生物种类

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。