查询词典 fish pond

Adults are vulnerable to osprey and other large fish-eating birds, as well as otters, bears, and commercial and recreational fishing.

成人很容易奥斯普里和其它大鱼吃鸟，以及水獭、熊和商业及康乐钓鱼。

5Mm TL. Dorsal and pelic supports appeared by the time the fish reached ca. 3mmand started to ossify at ca.

背腹鳍的支鳍骨出现在鱼达3mm时，而约3.5mm时开始化骨。

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。

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。

Only otolith thickness was linear with fish age.

耳石厚度与年龄成线性关系。

Otolith weight increased throughout the life of the fish, but the rate of increase slowed with age.

耳石重量终生生长，但是随着年龄增加生长速率会下降。

The assumption is that if you tweak them in a certain way it's going to change the dynamics of how the otolith helps the fish stay upright, navigate and survive.

因此我们认为，如果硬把它们的身体结构以某种方式进行扭曲，就会改变耳石的动力作用，无法正常帮助这种鱼保持身体竖直，无法为其正确导航，进而影响其生存。

By reading otolith annuli for SBT aged 2-9 yr; this approach was further modified and validated for fish up to approximately 30 yr old .

通过读SBT的otolith环体变老了2-9 yr；这种方法为鱼进一步被修改了并且被确认了大约30 yr old。

In order to understand the effect degrees produced by different factors on the fish in g capacity of otter trawl, we employed 12 factors in factor analysis.

为了了解各因子对单拖作业捕捞能力发挥的影响程度，本文选择影响单拖捕捞能力发挥的12个因子指标，采用因子分析法对其进行分析。

The use of the web to spread fears that flicking the switch on the LHC could create a Black Hole that could swallow up the Earth particularly concerned him, he said.

他说，使用互联网散布恐慌说启动LHC会生成一个可能吞噬地球的黑洞的做法让他感到忧虑。

Not a single word have I written down.

我一个字也没有写下来。