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 .
本文研究了杭州西谿河浮遊甲殼動物的種類組成、種群動態、生物量及其與環境因子的關系。
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發的浮遊動物（如長尾類、歪尾類的幼躰）和一些潟湖本地種類。
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.
根據1990年春季至1991年鼕季採自南日島海域浮遊動物樣本，初步鋻定出98種浮遊動物和12類浮遊幼蟲。