厦门西海域浮游植物的生态

本文分析、鉴定了于1989年4月至1990年3月,逐月采自厦门西海域的7个站位的112份样品。结果表明,本海区浮游植物共129种,其中蓝藻1种,硅藻105种,金藻1种,甲藻22种。按其分布特点,可分为两大生态类群:广布种占57%,暖水种占43%。浮游植物细胞总量的季节分布是8月出现主高峰,5月为次高峰,3月是最低谷期。此外,对其数量分布和季节变化与海洋环境因素的关系,进行了较详细的讨论。

Phytoplankton ecology in western Xiamen Harbour

The present study is based on the phytoplankton samples collected from the western Xiamen Harbout, Fujian province, during the periods from April 1989 to March 1990. A preliminary analysis of the samples identified 129 species, of which, 1 belongs to blue algae, 105 belongs to diatoms, 1 chrysophyta and 22 Pyrrophyta. There are 16 dominant species: Asterionella japonica, Bellerochea malleus, Biddulphia sinensis, Chaetoceros curvisetus, C. debilks, C. decipies, Coscinodiscus centralis, C. oculusiridis, C. jonesianus, Nitzschia paradoxa , N. pungens, Skeletonema costatum, Thalassionema nitzschioides, Thalassiothrix frauen feldii, Ceratium fusus and Noctiluca scintillans. According to their distributions, 2 ecological groups could be formed as: eurytopic species 57% and warm water species 43%.Seasonal variation in total phytoplankton number shows two annual peaks in the area: major peak in August and a secondary peak in May, with the lowest value in March. The effects on the quantitative distribution and seasonal variation of phytoplankton are discussed.