中国沿海的赤潮问题

Problem on the Red Tide in Coastal China Sea

统计了中国沿海 1972～ 1998年的赤潮事件 360起 (香港、台湾省未统计在内 ) ,系统介绍了中国赤潮研究概况和研究机构与组织。对中国沿海的赤潮进行分海区分析。根据海洋学特征 ,中国赤潮可分为 :近岸型 (河口和内湾型 )、外海型 (外洋型 )、外来型 (外源型 )、养殖区型赤潮。根据中国近十多年来发生赤潮的现状 ,可归纳为 4个特点 :①频率增高 ;②持续时间长、范围广和危害增大 ;③新记录和有毒种类增多 ;④“双相型”赤潮有上升趋势、类型多样等。

This paper analyzed the 360 events of the red tides in coastal China sea (not including the events causing in coastal Hong Kong and Taiwan sea) from 1972 to 1998.It introduced the study general situation, the study organizations on the red tides in coastal China sea by the numbers.And according to the sea areas causing, it conducted analysis for the red tides in coastal China sea.By the oceanographic characteristics, the red tides can be divided to following types of the red tides: alongshore type (estuary and bay type), oceanic type, exotic type and breed aquatics area type.According to the current situation causing of the red tides in coastal China sea in recently more than ten years, there were four characteristics: ①The causing frequency was heightening continually; ②The area causing was expanding, the holding time was longer and the degree causing disserve was greater; ③there were more new species recorded and more red tides were noxious; ④there was a raising trend for causing of “Double Type” red tides and there were more types of red tides, etc.