查询词典 benthic

Design and use of quantitative samples for benthic macro-invertebrates of stony substrata in shallow freshwaters.

浅淡水中多石底层上水底大型无脊椎动物定量取样的设计和使用

The current knowledge concerning effects of polybrominated diphenyl ether on benthic aquatic organisms is still very limited although they have been widely used as fire retardant additives for 3 decades.

多溴联苯醚(polybrominated diphenyl ether，PBDEs)为溴化阻燃剂的一种，近30年来已被广泛地运用，但目前仍少有研究探讨其对水生底栖生物之毒性影响。

Under this scenario, the long-term decline in bivalve mollusc larvae will reflect increased predation on the settled larvae and adults by benthic decapods.

据此软体动物幼体的长期减少反映了深海十足类对其幼体和成体的掠食。

Benthic foraminifera are now widely used for estimation of surface productivity of the ocean and the oxygen content of the bottom water.

底栖有孔虫被广泛应用于估算海洋表层生产力和底层水团的含氧量。

Effects of imposex on reproduction and population of gastropods .;2. Concentrations of heavy metals were determined in 17 species of benthic gastropods collected from the marine area near Dang Gang Islands of Pearl River estuary.

对分布于珠江口担杆岛附近海域的 17种底栖腹足类重金属的含量进行测定，结果显示：所有种类的整体软体组织中所测得的Cu、Zn、Pb、Ni和Sn的含量都低于香港和广东省对海产品管理的规定标准。

Gill flap is the key link, gastropods program, crustaceans such as 37 kinds of gang benthic fauna, fish resources are very rich.

有瓣鳃纲、腹足纲、甲壳纲等37种底栖动物，鱼类资源也十分丰富。

Separating meiofauna from benthic sediments sample is one of pivotal steps of the quantificational research of meiofauna.

从海底沉积物样品中分离小型底栖生物是对小型底栖生物定量研究过程中一个很关键的基本步骤。

Based on studies about current development of Methods of separating meiofauna, a new method is advanced in this paper. A suit of device was designed to Separate meiofauna from benthic sediments sample automatically, accurately and efficiently, which based on the technology of Laser-induced Fluorescence Detection, and used other technologies, such as noctilucence, electronics, biophysics, computer, mechanism, and so on. The scheme of macrocosm, the design of light route, the hardware and software design of the photoelectricity detection system and machine control system, the method of signal processing are introduced, especially the hardware and software design and the method of signal processing.

论文分析了目前国内外所使用的小型底栖生物分离方法现状，并以此为基础，自主开发了一套基于激光诱导荧光技术，并且集荧光化学技术、电子物理技术、光电测量技术、计算机技术及机械技术为一体的小型底栖生物标本自动分离系统，实现了从沉积物样品中自动分离小型底栖生物标本，从而大幅度提高室内小型底栖生物分样的工作效率和精度的目的，并以此完成了大洋协会&十五&攻关项目：&小型底栖生物标本自动分离系统研制&。

The average abundance of nematodes was 1801.82 ind.10cm-2, accounting for 95.4% of the abundance of meiofauna, with benthic harpacticoid copepods in the second, accounting for 2.2%.

小型底栖生物数量与环境因子的相关分析表明，影响小型底栖生物数量发生季节变化的主要因子0-2cm表层Chl-a含量。

Free living marine nematodes are the most dominant group, accounting for 89.702% of the abundance of meiofauna, with benthic harpacticoid copepods in the second, accounting for 4.193%.

小型底栖动物的平均生物量和生产量分别是(1120.72±487.21)μg dwt 10cm~(-2)和(10086.49±4384.85)μg dwt 10cm~(-2) a~(-1)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。