摘要
对长江口海域的赤潮发生形势进行了系统总结与分析 ,探讨了长江口海域赤潮灾害的成因及其防治对策。长江口及邻近海域是我国赤潮高发区 ,自20世纪80年代以来赤潮发生越来越频繁 ,赤潮生物种类增加 ,2002年首次发生了有毒亚历山大藻(Alexandriumsp.)赤潮 ,赤潮危害程度在增大 ,这与长江口海域的环境和生物条件、河口最大浑浊带、长江上游大型水利工程建设以及全球气候变化对长江口海域赤潮高发区的影响有直接关系 ,同时河口海域甲藻孢囊也是赤潮发生的种源。建议建立赤潮立体监测体系、赤潮信息管理系统、海产品赤潮毒素卫生检疫制度和赤潮应急响应机制 ,全面加强长江口海域的赤潮监控与防治工作。
The Yangtze River Estuary and adjacent sea areas are site to the most frequently occuring red tides in Chinesxe waters.Red tides have occurred frequently since the1980s with an increasing number of causative species and harmful impacts.Furthermore,a toxic algal bloom of Alexandrium first occurred in the adjacent sea area of the Yangtze River Estuary in2002.These occurrences can be directly related to regional environmental and biological conditions,esˉtuary turbidity,several large-scale water conserving projects in the upper reaches of the river and global climate change. Simultaneously,Dinoflagellates resting spares,in the estuarine sea area are the causative species initiating newred tides.This data suggests that,in order to strengthen management and mitigation of red tides in this area,a solid monitoring system for harmful algal blooms,an information management system,a quarantine system for marine products possibly contaminated by habs and rapid-response system must be established.
出处
《海洋科学》
CAS
CSCD
北大核心
2004年第5期26-32,共7页
Marine Sciences
基金
国家重点基础研究发展规划 (2001CB409707和2002CB412406)
国家海洋局青年海洋科学基金 (2002109)资助项目。
关键词
长江口海域
赤潮
监测体系
信息管理系统
毒素
卫生检疫制度
causes of red tides
countermeasures of mitigation
Yangtze River Estuary and its adjacent sea areas
