鱼类

Serum and Ig in serum of the three sturgeons can react with serum of rabbit anti each of the three sturgeons' Ig, but cannot react with serum of rabbit anti Ig of carp Cyprynus carpio. The Ouchterlony results show that Ig of sturgeons are immune homologous in structure and sequence, but have little immune homologous characters compared with Ig of high-classification Osteichthyes such as carp.

免疫沉淀反应的结果显示，3种鲟鱼的血清及其Ig与相互之间的兔抗Ig血清有免疫沉淀反应，但与兔抗鲤Ig血清无免疫沉淀反应，这表明3种鲟科鱼类的Ig在结构和序列上是较为相似的，而与鲤鱼等高等硬骨鱼类的Ig存在较大的差别。

The spiny eel , belonging to Perciformes, Osteichthyes, is a kind of little freshwater fish distributed in Southern China. In 1998, Our lab detected XX/XY differentiated sex chromosomes in this specie with karyotypic analysis, and then with chromosomal binding and SC observation, we identified that its two largest metacentric chromosomes were X, Y sex chromosomes in 1999. X, Y chromosomes differ each other not only in the distribution of heterochromatin but also in their shapes, which make them could be recognized directly under the light-microscope without any banding treatment.

刺鳅，属鲈形目、刺鳅科(Perciformes，Mastacembelidae)，是广泛分布于中国南方的小型淡水鱼类。1998年，我室通过核型分析，首次发现该物种具有明显分化的异形性染色体，其性别决定类型为XX／XY型。1999年，本室通过染色体显带、精母细胞联会复合体观察，再次确认刺鳅染色体组中最大的一对中部着丝粒染色体为X、Y性染色体，两者不仅已经出现结构异染色质分布上的不同，同时在外部形态上也存在明显差异，识别特征鲜明，在光镜观察下无需显带即能清晰辨认性染色体。

The team observed 34 kinds of far ocean fish and found that in the process of ocean warming from the cooler period during 1951 to 1976 to the warmer period during 1977 to 1998, twenty-five kinds of fish were observed ostensive increase of volume.

研究人员探讨34种远洋鱼类，发现在从1951-1976年这段寒冷期到 1977-1998年这段温暖期的暖化过程中，有25个鱼种的族群量显著增加。

One of the last armored jawless fishes, Alaspis (an ostracoderm related to Cephalaspis ), is also feeding on bottom detritus, at the lower right.

在右侧的河底，一条装甲的无颌鱼形动物正在享受它们最后的时光，它们看起来确实很像鱼类，但它们没有可以自由开合的口。

Analysis of otolith morphology is an effective tool for fish stock identification.

结果表明耳石形态学分析是鱼类群体鉴别的有效手段。

Computer identification on otolith microstructure of fish.

鱼类耳石微结构的计算机自动识别。

Use of similar models in ageing other species, along with periodic validation to ensure that the otolith parameter age relationship has not changed over time, could simplify age data collection for population models.

用耳石参数与年龄的关系来鉴定其他鱼类的年龄，要判断这种关系不会随着时间的变化而改变，这样为种群模型收集相应年龄数据就相当容易了。

Outcrossing to copper bettas led to an increase color spread into the face and head area of the fish.

交铜bettas导致更多的颜色蔓延到脸部和头部面积的鱼类。

Changjiang River ; Swan Oxbow ; Fish community ; Species diversity

长江；天鹅洲故道；鱼类群落；种类多样性

Other contenders for the title of world's largest freshwater fish include the Chinese paddlefish and dog-eating catfish—another Mekong giant.

除了上述的一些庞大的鱼类之外，竞争"世界最大的淡水鱼"这一头衔的还包括中国的白鲟以及食狗鲶鱼（dog-eating catfish）——另外一种湄公河庞然大物。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。