浮游动物

Under oligotrophic conditions, a phytoplankton size of 10 μm3 combined with a zooplankton size of 101.25 μm3 to give the maximum value of the ascendency.

在贫养条件下，浮游植物大小10 μm3加上浮游动物大小101.25 μm3给予最大价值的优势。

Trophic components involved were milkfish, zooplankton, phytoplankton, chironomid larvae, benthic algae, supplemental feed and detritus.

本研究将生态系中的生物分为七个单元，分别为虱目鱼、浮游动物、浮游植物、红筋虫、底藻、饲料及腐屑。

The change of cladoceran composition and abundance were extremely strong.

浮游动物的种类、数量的变化较之浮游植物更明显，尤其是枝角类的变化更大。

Dilution the effect of copepod addition incubations were conducted in Xiamen Baozhu waters on November 16 and 27 in order to study the impact of microzooplankton and copepods grazing on the growth of phytoplankton.

2005年11月16日和27日，运用稀释法和桡足类添加法，对厦门宝珠屿海域小型浮游动物及桡足类的摄食对浮游植物生长的影响进行了研究。

The main forms of life in the limnetic zone are phytoplankton and zooplankton.

此区主要由浮游植物和浮游动物组成。

SPSS was used for principal component analysis and factor analysis of quantity and biomass of six phyla of phytoplankton and four species of zooplankton of five lakes.

利用SPSS软件，对5个湖泊浮游植物6个门和浮游动物4个类的数量和生物量进行了主成分分析和因子分析。

As zooplankton become more abundant and eat more phytoplankton, the population of phytoplankton should shrink.

随着浮游动物变得越来越丰富，它们吃掉的浮游植物也就越多，浮游植物的数量就会减少。

Moreover, temperature and salinity were the essential factors to determine the seasonal changes of zooplanktonic abundance, particular the salinity which is the key factor to affect the horizontal distribution and abundance of zooplankton.

通过进一步线性回归分析表明，温度和盐度是影响浮游动物丰度季节变化的重要因素，其中盐度是决定浮游动物丰度水平变化的关键因子。

It focuses on the methods with which the grazing pressure of microzooplankton on phytoplankton and primary production, the top-down and down-top effect caused by the herbivory of microzooplankton, and the main factors that influenced its herbivory.

文章总结了近年来关于微型浮游动物丰度和生物量及摄食生态学方面的研究进展，主要包括微型浮游动物摄食的研究方法、上下行效应、影响其摄食的主要因子。

According to the rate of occurrence and the average biomass, 33 species of phytoplankton, 34 species of zooplankton and 6 species of zoobenthods were the important species in the inland saline waters in North China.

根据出现率和平均生物量，有33种浮游植物、34种浮游动物和6种底栖动物为三北地区内陆盐水的主要种类。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。