桡足类

In copepod, Thermocyclops taihokuensis and Mesocyclops thermocyclopoides were dominant, and their average lengths were 730μm and 680μm, respectively. Nauplii and cyclopoid copepodites also had high abundance and biomass.

桡足类优势种为台湾温剑水蚤和温中剑水蚤，平均体长介于680~730μm之间，此外，无节幼体和剑水蚤幼体在数量和生物量上也比较高。

Therefore, it is cautious to choose this parameter as biomarker of oxidative injury, and other biomarkers should be involved, so as to reflect the extent of oxidative injury more comprehensively.3. During the 12 d exposure, heavy metal not only induced the synthesis of MT in the copepod T.

经过12 d的镉或镍暴露后，桡足类体内MDA含量更多地与该金属处理无相关性，因此该指标作为生物体氧化损伤程度的标志物时，需要慎重，应该辅以其它生物标志物才能更全面地反应生物体的氧化损伤水平。3。

In two basins, Bohai and Qinglian, Rotifera contributed most to biomass in almost each size class, followed by copepod. Both the size range of the zooplankton and the body size at which peak biomass occurred were lower than in temperature lakes.

根据对两个子湖一一波海湖和青莲湖2002年和2003年生物量分布的分析与比较，2003年生物量均有所下降，在生物量分布的每个体重等级上轮虫基本上都是第一优势类群，其次是桡足类。

Meanwhile, both Cd and Ni exhibited the neurotoxicity to copepod, because different metal additions markedly influenced the copepod AChE activity.

在12 d的重金属暴露过程中，GSH总是最先受到影响的，而且基本上处于抑制状态，因此该指标有望成为桡足类体内指示重金属污染的良好标志物。

As an important physiological phenomenon in marine copepoda,diapause is a significant factor to influence the fluctufion of population.

海洋桡足类在海洋生态系统中占有重要的地位，其重要的生理现象一滞育是影响其种群数量变动的重要因子。

An individual having a lean, slightly muscular body build in which tissues derived from the embryonic ectoderm predominate.

原尾幼虫假叶目及一些其他绦虫的实体第一寄生虫，通常在桡足类的体腔中发育

Copepods showed responses to fish predation that depended on seasonal successional stage of the initial community, because of changes in their stage structure and edibility as they grew from nauplii to adults.

桡足类对鱼类捕食作出反应，依赖于起初群体的季节性的连续时期，由于它们的阶段性结构变化和可食性随着它们从幼体到成体的增长。

This strategy allows diatoms to reduce the grazer population , thereby influencing the marine food web .

硅藻受损后释放的次级代谢产物虽然不能对抗摄食者，但能干扰桡足类的繁殖，从而影响海洋食物网。

Age as one of the internal factors can affect the value of venturous revenue through acting on the checking results of the external factors ( e . g ., predation pressure ), and thereby affect the optimal migrating strategies . therefore , the patterns for dvm vary with the change of the animal ' s age

作为内部状态因子的年龄，因对外部因子识别结果的影响而对风险收益值有较大的影响，从而影响桡足类垂直迁移的最佳策略，导致其迁移的形式随年龄的变化而变化，一般来说，年龄越大的动物垂直迁移的时间越早、幅度越大； 3

The senate abalone grows seedlings the antibiotic research Abstract: The trepang the abalone is north part of our country the important bottom roosts the biological resources, has the very high economic value, also is a present prestige mirage item of important aquatic product increased reproduction production project.

参鲍鱼育苗中桡足类抗药性的研究摘要：海参鲍鱼是我国北方重要的底栖生物资源，具有很高的经济价值，也是目前威海市的一项重要的水产增养殖生产项目。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。