淡水的

During their long evolutionary history, starting in the Lower Cretaceous, copepods spread over all the continents, as well as they successfully colonized about all the available water habitats of the Planet, becoming well adapted or specialized to very different salinity regimes, from marine and hypersaline waters to continental freshwater bodies, and to a wide range of temperature from the polar to the hot springs waters.

在长期进化史，最早始於早期的白垩纪，桡足类散布在各大洲，牠们不但成功地移植居住於地球上所有可利用的水域，而且从海洋与高盐度水域到大陆棚淡水的水体，变成容易适应或限定在不同盐度范围，从极区到热泉的水域具有宽广的温度范围。

Flush in oil and cash, Persian gulf governments can afford to do what most water-scarce nations can't even image: desalinate seawater for almost all their freshwater needs.

丰足的石油和现金，波斯湾各国政府能够做最缺水的国家甚至不能的想象：海水脱盐淡化几乎满足所有的他们对淡水的需求。

The marine carbonate near the unconformity was mainly reconstructed by strong atmogenic freshwater during the Indo-China and Yanshan Movement, being better reservoir. The reconstructed records behave as following: the ratio for 87Sr/86Sr in the different carbonate minerals or structural components is higher than carbonate matrix, while the δ13C and δ18O value in mass of samples in the different carbonate minerals or structural components are lower than carbonate matrix.

在不整合面附近的海相碳酸盐岩主要受到印支、燕山再曝露期古喀斯特作用强烈的大气淡水的改造而形成良好的岩溶储层，这种改造作用的记录表现在各种洞或脉中的碳酸盐矿物的87Sr/86Sr比值显著高于基质碳酸盐，而大多数样品的δ13C和δ18O值则显著低于基质。

In the CO_2 source area, phytoplankton abundance was low and zooplankton mainly belonged to true estuary and estuary marine communities; while in the CO_2 sink area, phytoplankton was high and zooplankton mainly belonged to euryhaline marine communities.

在枯水季节，长江口海域由低盐区大气二氧化碳的强源逐渐过渡到高盐区的弱汇，咸淡水的混合在一定程度上决定了该区域碳源汇的格局；二氧化碳源区，浮游植物的丰度低，浮游动物主要是纯河口类群和河口性海洋类群，而汇区，浮游植物的丰度高，浮游动物主要是广盐性海洋类群。

On the other hand, these activities control the amout and quality of freshwater, for example, water used for agricultrue and industry increase, build up reservoir and unloading directly change the balance of the ecological eviromental composition such as salinity, sand, nutrious and microelement in soil, so that control the change of heteroptera Kitog.

人类活动一方面通过建设虾池、大坝及油井平台等活动直接占用了碱蓬生长的土地，另一方面它又通过控制上游淡水的水量与水质，如农业与工业用水的增加、建水库、直接排污等活动改变着区域土壤的盐度、泥沙成分、营养物质、微量元素等生境组分的平衡，进而控制碱蓬的消长。

This study reviewed literature on spawning times for three north temperate species of anguillid eels estimated by sampling for small leptocephali at sea and for several temperate and tropical species by back-calculating from putative daily ages derived from otolith increment analysis of glass eels that recruited to coastal waters.

本文通过研究了海里采集鳗鲡幼体总结出的三种北温带种类的鳗鲡的产卵时间，并且通过通过分析溯河洄游到淡水的鳗苗的耳石日龄倒推出的产卵时间，将二者进行比较研究。

By the research on Nitzschia sp. MD1, it got the ability of multi-adoption to extremely condition. MD1could growth both in seawater and fresh water and tolerate high alkalinity. It could hold the characteristic of high content of total lipid and EPA.

通过对MD1的研究，发现它有多重极端适应特性，如MD1可适应海水和淡水的生长环境，对高碱性环境的良好耐受能力，高的总脂含量和高EPA含量，并有大规模提升的空间发现。

The factor analysis showed that the resuspension of mud and sand and salinity caused by river runoff and the mixture of fresh and salt water was the main reason of the variation of heavy metal content in the Huanghe estuary water.

主成分分析表明，河水流量的大小和咸淡水的混合导致的泥沙的再悬浮和盐度影响到河海混合过程及河口重金属的浓度变化趋势。

Soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales.

软鳍的主要是淡水的鱼，特征是生有无牙的咽喉和圆盘状的鱼鳞。

Hectares of coastal Marennes culture zone growth of high-quality oyster has the advantage of being here in the high sea temperatures suitable for continuous propagation of oysters, plus seudre River Charente River and the injection of fresh water, oysters salt and water balance better.

Marennes海岸3000公顷的养殖区生长高品质牡蛎的优势在于这里的海水温度偏高适宜牡蛎不断繁殖，加之seudre河和夏朗德河淡水的注入，牡蛎的盐分和水分平衡得更好。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。