近20a我国近海赤潮特点与发生规律

Characteristics and Patterns of Red Tide in China Coastal Waters During the Last 20a

近年来国际赤潮研究逐步聚焦到赤潮与气候变化的关系及其预测预警等方面,长期观测资料的分析有助于了解赤潮发生的规律性变化。通过对近20a来我国海域赤潮发生情况的分析,总结得出我国近岸海域赤潮发生的特点是全年、全海域、多种类、高危害,具有显著的时间和区域特点;大面积赤潮主要集中在我国渤海和东南近海;主要赤潮生物种类为甲藻,有毒有害赤潮生物增多;灾害性赤潮以甲藻类赤潮为主。本文结论对于掌握我国近海赤潮发生规律、对赤潮爆发作出预测预警具有一定的指导意义。

In recent years the research on HAB focus on how the HAB species may change with climate and how to setup models to predict and early warning of the red tides. Analysis of long term data is helpful to understand the patterns of change of red tides. The data of nearly 20 a indicate that the characteristics of red tides in China are year-round, whole area, multiple species and high risk. They displayed a distinctive spatial-temporal characteristics. The large scale red tides mostly concentrated in Bohai sea and south-east China sea, the primary red-tide organisms were dinoflagellate which lead to the huge economic lost in mariculture and damage to ecosystem. This review will help better understand the rule of HAB in coastal wa ters, predict and early warning of red tides in China.