planktonic species

基本解释

Community structure of planktonic crustacean in the Xiqi river, Hangzhou including species composition, population dynamics and biomass, was studied .
本文研究了杭州西溪河浮游甲壳动物的种类组成、种群动态、生物量及其与环境因子的关系。
The other source is the native lagoon species, such as periodical outbreak zooplankton (e. g. larvae of macrura, brachyura and anomura) and some endemic planktonic species;
另一部分是周期性爆发的浮游动物（如长尾类、歪尾类的幼体）和一些潟湖本地种类。
The samples, which were collected in Nanri Islands sea area from spring, 1990 to winter, 1991, were studied. 98 species of zooplankton and 12 groups of planktonic larvae were identified.
根据1990年春季至1991年冬季采自南日岛海域浮游动物样本，初步鉴定出98种浮游动物和12类浮游幼虫。