摘要
本文利用历次夜光藻调查资料，阐述了其在浙江近岸海域的分布特点，丰度高峰主要出现在春秋季，夏季亦存在暴发性增殖的可能性，冬季则基本见不到夜光藻的踪迹。杭州湾口等水体浑浊区是夜光藻的低丰度区，仅在春夏季有零星出现，这与水体透明度低、悬浮泥沙含量高及强烈的水动力因子等密切相关。在时间尺度上，夜光藻丰度呈上升趋势，根本原因是海域富营养化加剧的结果。
The characteristics of Noctiluca scintillans distribution were described according to the data obtained in 1958～1959,1981～1982 and 1990.The peak of cell concentration appeared in spring and autumn.The possibilities for Noctiluca scintillans abrupt increase also exist in summer.Noctiluca scintillans was not discovered in winter.The estuary of Hangzhou Bay is a low abundance area and only some individuals of Noctiluca scintillans occurred in spring and summer.This Phenomenon is related to the low transparency clarity and high suspended sand in the water.From 1950s to 1990s,the abundance of Noctiluca scintillans has been increasing and the eutrophication of sea water is responsible for this phenomenon.
出处
《东海海洋》
1994年第3期62-69,共8页
Donghai Marine Science
基金
浙江省自然科学基金
关键词
夜光藻
富营养化
生态学
分布
Noctiluca scintillans,abundance,Zhejiang coastal water area, eutrophication, red tide
