幼体

With the development, both the numbers of pigment granules and the numbers and kinds of the organelles in the cell increased gradually, the diameter of the rhabdom and distance between the rhabdoms of the ommatidia increased too. The fine structure indicated that larva obtained the function of the light sensation gradually.

随着发育，幼体小网膜细胞内的色素颗粒、细胞器种类和数量、组成感杆束的微纤毛数量、感杆束的直径和间距等均有逐渐增加的趋势，表明复眼的感光结构是逐渐完善的。

In bacteria from surfaces of sea squirt's tunics and their adhesive substrates, dominant colonies are Pseudomonas, while Aeromonas are primary in bacteria from water.

将这9株细菌分别制成不同的单种细菌黏膜及9种细菌混合黏膜，检测细菌黏膜对冠瘤海鞘幼体附着和变态的影响。

In addition, the shale contains the remains of many newborns that are between 20 and 30 inches long.

而且， 块页岩包含着很多在 20 到 30 英寸之间的新生幼体的化石。

In the experiment besides entire spermatophore transplantation and spermaduct transplantation, partial spermatophore transplantation and semen transplantation were firstly used in artificial insemination of Fenneropenaeus chinensis. Artificial insemination rate, fertilization rate and hatching rate were compared among the four methods. The results indicated that artificial insemination rate of four methods was high, the highest was 80.8% and the lowest was 53.3%.

在常规的精荚移植和输精管移植两种中国对虾人工授精方法的基础上，首次建立了精荚切块移植和精液移植两种新的人工授精方法，并对比了4种方法的授精成功率、受精率和幼体的孵化率。4种方法都取得了较好的授精成功率，其中完整精荚移植法最高，为80.8%；输精管移植法最低，为53.3%；其他两种方法依次为：精液移植法为73.9%，精荚切块移植法为66%。

The infant squilla can adapt to a lower limit salinity of sea water (specific gravity 1.005) than the larva at third stage (specific gravity 1.010), water temperature 28～30℃.

仔虾蛄比底栖阶段的伪蚤状幼体对低盐度的适应能力强，前者海水相对体积质量耐受低限为1.005，后者为1.010(28～30℃)。

From April to September, several clusters of bamboos, 3 ~ 4 m long, 1 ~ 2 m wide, were set on the sea bed at a depth of 16 to 20 m to attract their spawning, and the egg-strings were then transported to the laboratory. When the development of the embryo reached stage 24, iris of eyes being prominent as a colour circle and statolith being formed, they were transferred into different rearing conditions, i.e., 20, 25, 30, 35 o/oo and 15, 20, 25, 30 oC. The durations from stage 24 to hatching were different among all different rearing conditions. The statoliths were extracted and mounted in Crystal Bond thermoplastic cement for reading their growth rings.

每年的四月到九月为东北角软丝主要的产卵季节，竹丛被设置在沙质海床上吸引成熟的个体前来产卵，将采集到的卵串带回实验室中培养，当胚胎发育至第二十四期的时候(胚胎的虹膜及平衡石开始生成)，这些胚胎分别被转换至不同的温度及盐度条件之下培养，温度被控制在15， 20， 25， 30 oC 四种条件下，盐度则分为20， 25， 30， 35 o/oo 四种条件，共组成十六种不同的培养条件，从平衡石生成至幼体孵出所需要的时间随著培养条件的不同而有所差异，孵化所需要的时间会随著培养的温度而有很大的变化，低温的条件会将所需的时间增长许多，在正常的条件下(25oC，35o/oo)，从平衡石出限制肤出约需要9~16天。

Changes on the shape of the statolith were observed among different incubated conditions. The shape of the statolith at hatching had obvious differences among different embryonic developmental conditions. The statolith developed in the colder environment had smaller dorsal dome, thinner and shorter rostrum than that developed in the warmer condition.

不同条件下培养的幼体在其平衡石的型态上有所差异，其型态上的变化随著培养的条件而有显著的改变，在较冷的条件下培养的个体拥有较短小的钝端比例之平衡石，而在较高温条件下培养的个体则是拥有较长比例钝端的平衡石。

Adult\'s digestion and absorption rate are higher,while,the juvenile and the subadult are lower.

成体的食物消化率较高，而幼体和亚成体较低，但具有更高的吸收能力。

Different age groups of Gloydius shedaoensis have different distribution area that the juvenile and the subadult mainly distribute in the shrub and meadow,the adult mainly distributes in the forest,and aged adult mainly in bare land and rock.

不同年龄组的蛇岛蝮分布范围不同，幼体和亚成体主要分布在灌丛和草甸中，成体主要分布在树林中，老成体主要分布在裸地上。

Basic parameters of the populationAt present,the sex ratio of female and male of population of Gloydius shedaoensis is 1.11:1.00,the number of effective populations is 15 074 and age structure is that the juvenile 9.66%,subadult 15.81%,adult 61.08%,and aged adult 13.45%.

种群现有的基本参数蛇岛蝮种群现有的雌雄比为1.11：1.00，有效种群数量为15074条，年龄结构为幼体9.66%，亚成体15.81%，成体61.08%，老成体13.45%。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失