福建闽东海域具齿原甲藻赤潮与生态因子关系的初步分析

本文根据2002年5月闽东海域一次大面积赤潮的监测数据。对赤潮区赤潮生物——具齿原甲藻密度与生态因子的关系进行初步分析．结果表明：现场水文气象因子对赤潮区具齿原甲藻密度影响不大，但影响赤潮面积的消长；水化因子中对赤潮区具齿原甲藻密度影响明显的因子有化学需氧量、活性磷酸盐．具齿原甲藻密度与化学需氧量、活性磷酸盐的回归方程分别为：Y=1．39X-1．77，Y1．55X-0．56．活性磷酸盐是本次赤潮的主要限制因子之一。

Primary analysis on relationship of ecological factors and red tide of Prorocentrum dentatum in eastern Fujian sea area

According to the watching data of a wide spread field red tide of Prorocentrum denta-tum occurred in the eastern Fujian sea area in May 2002, the relationship of ecological factors and density of Prorocentrum dentatum was analysed primarily. The results of obvious positive correlation of CQD,PO43- with density of Prorocentrum dentatum were obtained. PO43- was the primary limit factor of this red tide.