珠江口赤潮生物及其与环境关系

RED TIDE ORGANISMS AND THEIR RELATIONSHIPS WITH ENVIRONMENT IN THE ZHUJIANG ESTUARY

样品于１９８７年２月至１９８８年２月采集于珠江口水域。从珠江口水域鉴定出２６种赤潮生物，分析了赤潮生物的季节更替现象，讨论赤潮生物与温度、盐度、营养盐的关系。

An investigation on red tide organisms and eutrophication was made on Zhujiang estuary from Feb. 1987 to Feb. 1988. The analysis to the phytoplankton specimens primarily determined 26 species of red tide organisms (16 species of diatom, 10 species of dinoflagellates). The red tide organisms have a distinct phenomenon of seasonal replacedominant; in summer Cheatoceros pseudocurvisetus and Skeletonema costatum are the dominant species; in autumn Skeletonema costatum-Nitzschia pungens-Thalassiosira nordenskioeldii are dominant; in winter Thalassiosira subtilis and dinoflagellates are dominant. This article analyses the relationships between the red tide organisms and temperature, salinity, nutrient. This article will provide the basic material to research and observe red tides in Zhujiang estuary.