东海水系与生物关系的初步分析

本文利用中日黑潮联合调查研究期间1986年5—6月和1989年7—8月航次水文与生物的同步取样资料,分析了东海测区内水系组成与浮游甲藻类及浮游桡足类等分布之间的对应关系。指出了不同生态类型的生物需要不同的物理海洋环境条件。同时,某些指示生物的分布又为区分水系、了解流系情况提供了良好的示性指标,并且从某些生物数量的变化还可以判断出水系混合与变性的程度。

PRELIMINARY ANALYSIS OF RELATION BETWEEN WATER TYPE AND BIOLOGY IN THE EAST CHINA SEA

The hydrographical and biological data on samples synchronously collected in spring (May to June) 1986 and summer (July to August) 1987 in China-Japan Joint Research Programme on the Kuroshio are used in this paper. The relation between water type constitution in the East China Sea and zooplankton and phytoplankton is analysed. It indicates that variable ecotype needs variable physical oceanic environment, and variation of oceanic environment: have influence on the distribution of biological ecotype and the biomass. Therefore, in research of biological oceanography, reasonable explanation of oceanic ecological environment is necessary to the correct analysis of water type and current. Analysis of water type and research of current help undemanding the distribution of biological ecotype, and vice versa, the distribution of some indicator organisms can decide correctlly the water type and current. Furthermore, the extent of water type mixing and modification can also be judged by some variations of biomass.