水生生物的

Description: This is the website for The Aquatic Network.

网站描述：这是水生生物网络的网站。

By dredging, we can get a lot of rare aquatic organisms for scientific research.

通过采捞，我们可以获得很多稀有的水生生物进行科学研究。

Canalization, commercial development and pollution have resulted in a loss of aquatic biota and bankside vegetation in the lower reaches of many rivers. Wetlands have been lost to agriculture for grain production and grazing.

开凿运河，商业开发和污染造成了许多河流下游水生生物和河岸植被的减少，湿地被用于农业，变成了农田和牧场。

Air, water and soil pollutants (S7)Canalization, commercial development and pollution have resulted in a loss of aquatic biota and bankside vegetation in the lower reaches of many rivers.

环境关系开凿运河、商业开发和污染造成了许多河流下游水生生物和河岸植被的减少，湿地被用于农业，变成了农田和牧场。

Vergara J M%Fernandez-Palacios H%Robaina L The effects of varying dietary protein level on the growth,feed efficiency,protein utilization and body composition of gilthead sea bream fry Fisheries Science , 1996,null

钱雪桥%崔奕波%解绶启%薛敏养殖鱼类饲料蛋白需要量的研究进展水生生物学报， 2002，(4)杨国华%李军%郭履骥夏花青鱼饵料中最适蛋白质含量水产学报， 1981，1

This may be due to hydrolytic chelating, precipitation and the sediment or hydrobioes attachment, absorption etc. The honewort had stronger ability of accumulating La because of its large leaf surface that could attach La. The accumulating ability of snail and fish to La was relatively weaker but some organs of them had higher contents of La especially in the intestines, shell of snail, and in gill, internal organs, scales, head, bone of fish, rare in muscle. The total accumulating quantities of La in each component of simulated aquatic ecosystem were a decreasing order of: sediment ＞honewort＞snail＞fish, and the sequence of bio-concentration facter was as follows: honewort＞snail＞fish.

2金鱼藻对La有较强的富集能力，主要通过枝叶表面吸附、吸收而富集；螺蛳对La也有一定的富集，并主要分布于肠、壳中，螺头中积累相对较少；草鱼对La的富集能力相对较弱，进入鱼体的La主要集中在鳃、内脏、鳞及头、骨中，肌肉中积累量较少；按质量计，稀土元素La在模拟水生态系统各部分中的积累量依次为：底泥＞金鱼藻＞螺蛳＞草鱼；各水生生物对稀土La的生物富集因子依次为：金鱼藻＞螺蛳＞草鱼。

This is the web page of The African Journal of Tropical Hydrobiology and Fisheries.

这是非洲热带水生生物和渔业杂志的网页。

Followed successively by Bacillariophyta, with 31 species of 18 genera, taking up 19.38%; Euglenaphyta, with 15 species of 3 genera; Cyanophyta, with 7 species of 4 genera; Cryptophyta, with 3 species of 2 genera; Pyrrophyta and Chrysophyta, with 2 species 2 genera; Xanthophyta, with 1 species 1 genera.

浮游植物是水生态系统中的初级生产者，是水生生物群落结构中的重要组成部分，是水环境质量的重要指示生物，浮游植物的种类组成和数量变动都可以反映水质变化的情况。

This paper analyses the action of the water biology wiping off eutrophication,according to the annual variety features and trend of the water quality and eutrophication,and puts forward the biological control measures for Chagan Lake to realize the strategy of the water environment protection and economy development.

根据查干湖水质和富营养化的年际变化特征及趋势，分析了常见水生生物对水体营养物质的去除作用，从完善生态系统建设的角度，提出了对查干湖实行生物治理、实现水生态环境保护与水域经济发展双赢的基本策略。

The accumulation rates of terrigenous long-chain compounds peaked at H3, paralleling those of the algae biomarkers, demonstrate that the enhancement of Eustigmatophceae and coccolithophorid productivity at H3 is caused by an increased terrigenous nutrient supply from the Sunda Shelf. This interpretation coincides with Sunda Shelf laid bare, the low sea level and river flood due to the abundant monsoon precipitation in southern South China Sea in the last glacial.

同时这些化合物的堆积速率在H3都出现了极大值，与水生生物来源的生物标志物的变化一致，反映出在南海海平面降低，巽它陆架出露背景下这一时期丰富的季风降雨导致河流洪水泛滥，从而引起南沙海区输入的陆源营养元素增多，黄绿藻、颗石藻海洋表层生产力的增高。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。