鱼类

The strange practice of hermaphroditism is more common among species of fish than within any other group of vertebrates.

有一种奇怪的现象就是鱼类的两性畸形，比起其它种类的脊椎动物，这在鱼类物种中较为常见。

The contents of this course are the brief and review of the ichthyology and the reading of the recent paper related to ichthyology publishing on the famous journal in local and foreign area.

本课程内容分为两部分：鱼类学的复习介绍及阅读已发表在国内外著名期刊的和鱼类学相关之论文为主。

The ISJ publishes the Ichthyological Research and the Japanese Journal of Ichthyology.

该学会出版有《鱼类学研究》季刊及日文期刊《鱼类学》。

It is the madness from a blended whale and fish brain that causes the sharks to attack; and this would never have been created outside of a human laboratory as whales would never choose to interbreed with other fish let alone other dolphins.

正是来自鲸鱼和普通鱼类大脑混和的疯狂导致了鲨鱼的攻击，这本将从未在人类实验室之外制造，因为鲸鱼原本永不选择和其他鱼类杂交，更别提其他海豚了。

The freshwater ichthyofaunas mainly from northern China are characterized by primitive actinopterygians,and they are closest to those from Siberia and Middle Asia,and also contain some forms similar to the fishes from other regions of Laurasia and the Gondwanan continents.

与当时"南海北陆"的古地理格局一致，淡水鱼类主要分布于北方大陆的河湖相盆地，但也见于扬子板块与北方大陆碰撞后的四川盆地；海生鱼类则主要分布于华南和喜马拉雅地区。

Depth tended to be a limiting factor for the distribution of each fish species considered in this study.

不同的流系具有不同的温盐特征，影响了鱼类的分布及其洄游，从而控制了不同鱼类群落类型的种类组成。

The results showed that fishes of 11 orders, 18 families, and 46 species were represented in Changshu section of the Yangtze river. After the season, the total catch per unit effort increased sharply in the section; the dominant species were mainly commercial fishes such as Coilia ectenes, Mugil cephalus and Parabramis pekinensis and the annual change of dominant species was not obvious. The CPUE of Coilia ectenes had risen up and the trend of resource deterioration had been kept within limits. The caught rate of pintsized and juvenile fish rose markedly. The Margalef's index and Wilhm's index had an evident tendency of rising, while McNaughton's index and Pielou's index waved slightly.

研究结果表明：4~6月间常熟江段出现的鱼、虾、蟹类渔获物共有11目、18科、46种；春禁后，该江段总CPUE显著增加；优势种更替不明显，历年以刀鲚、鲻鱼、长春鳊等经济鱼类为主；刀鲚CPUE有所回升，资源衰退受到遏制；小型鱼类、幼鱼在渔获物中的比例明显上升； Margalef物种丰富度指数、Wilhm改进指数呈明显上升趋势，均匀度指数J′、优势度数Dw在窄幅范围波动。

Furthermore, the prospects of chromosome micromanipulation techniques and FISH will have for future exploration into the fish chromosome research and how to progress genome research of fish are discussed.

此外，还探讨了染色体显微操作和FISH应用于鱼类染色体研究的前景及深入开展鱼类基因组研究的构思。

Although the mostly eaten fish were Tilapia and Milkfish, the total amount of fish and fishery products being eaten are much higher, and it reach to 129.3 grams per day, and the average daily intake of MeHg is 0.44μg/kg day.

分析鱼类及鱼产品之摄食型态，发现受访者普遍喜欢吃鱼，日常大都有吃鱼的习惯，而年纪越大越喜欢吃鱼，常吃之鱼种虽以吴郭鱼、虱目鱼居多，全体鱼类及鱼产品之食用量偏高，达129.3 g/day，而经由此途径之甲基汞暴露量也偏高，达0.44μg/kg day，危害指标HI值超过1的比例（43.6%）也偏高。

The Cyt b gene of Takifugu fasciatus was proved to have good homology with other 13 species of fishes recorded in GenBank and it has 96.1% homology with Takifugu rubripes, about 75% with Mola mola and Masturus lanceolatus. The tRNA gene has 69 nucleotides and the tRNA has 72 nucleotides. Their sequences are the same as those of Takifugu rubripes.

用DNA分析软件对暗纹东方鲀与GenBank中10个目13种鱼类的Cyt b序列进行比较分析，显示暗纹东方鲀与这些鱼类的Cyt b基因具有较高的同源性，与同属红鳍东方鲀的同源性最高，为96.1%；与同目不同科的矛尾翻车鲀和翻车鲀的同源性分别为74.1%和74.8%。tRNA基因由69个碱基组成，tRNA基因由72个碱基组成，与红鳍东方鲀相应tRNA的碱基组成完全相同。

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。