剑尾鱼

Sections gill filament tissue(Bar = 303μm);Fig. 3 Morphology of the surface of the gill arch(Bar = 10μm);Fig. 4 Taste bud of the

图1 剑尾鱼鳃弓、鳃耙和鳃丝的表面形态(Bar =1mm)；图2 鳃丝组织切片光镜图(Bar = 303μm)；图3 鳃弓的表面形态

The study aimed to further understand the genetic quality of Xiphophorus helleri RR-B strain and to estimate the feasibility of microsatellite markers in genetic monitoring of aquatic laboratory animals.

［目的］为进一步了解剑尾鱼RR-B系的遗传质量，探讨微卫星标记技术在水生实验动物遗传监测中应用的可行性。

The acute and joint toxicity test to swordtail fish, Xiphophorus helleri was conducted to evaluate the impact of mercury and selenium on fishes.

用重金属汞(Hg+2)和硒(Se+4)对剑尾鱼进行急性毒性和联合毒性的实验。其目的在于评价水环境中Hg+2和Se+4对鱼类的影响，为制订渔业水质标准提供参考数据。

Xiphophorus helleri ; mercury ; selenium ; acute toxicity ; evaluation

剑尾鱼；汞；硒；联合毒性；评价

An indirect competitive enzyme-linked immunosorbent assay was established for detecting vitellogenin in the whole body homogenate of male swordtail fish.This technique was developed with antiserum of lipovitellinresistance as antibody and Vtg as antigen.

以卵黄脂磷蛋白(lipovitellin，Lv)抗血清为抗体，以纯化的卵黄蛋白原(vitellogenin，Vtg)为抗原，建立了间接酶联免疫吸附反应方法检测剑尾鱼雄鱼整体匀浆液中ρ。

The most sold are still tropicals, especially guppies, swordtails and millies, which people like because of their bright colors and because they provide the tank with new young fish.

大部分卖出的依然是热带鱼，尤其是虹，剑尾鱼和米莉。人们喜欢这些鱼的明亮颜色，而且它们能给水族馆提供新的年轻的生命。

The most sold are still tropicals, especially guppies, swordtails and millies, which people like because of their bright colors and because they provide the tank with new young fish.

大部分卖出的是热带鱼，尤其是虹，剑尾鱼和米莉。人们喜欢这些鱼的明亮颜色，而且它们能给水族馆提供新的年轻的生命。

The most sold are still tropicals,especially guppies,swordtails and millies,which people like because of their bright colors and because they provide the tank with new young fish.

大部分卖出依然是热带鱼，尤其是虹鳉，剑尾鱼和米莉。人们喜欢这些鱼的明亮颜色，而且它们能给水族馆提供新的年轻的生命。

The most sold are still tropicals, especially guppies, swordtails and millies, which people like because of their bright colors and because they provide the tank with new young fish.

大部分卖出的依然是热带鱼，尤其是虹鳉，剑尾鱼和米莉。人们喜欢这些鱼的明亮颜色，而且它们能给水族馆提供新的年轻的生命。

AI can be used in non-hybrid matings when the situation dictates, such as when a mating pair has not produced offspring after several months of co-habitation.

在某些时候人工受精技术会使用于不同类型的纯种剑尾鱼之间的杂交，例如一对杂交种鱼经过了几个月的同缸生活后还是没有生产后代。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。