赤潮是由于海水中一些藻类等浮生物爆发性繁殖、聚集,引起局部海域水色异常的一种自然现象。由于夜光藻引起这种现象时海水呈桃红色,因而得名“赤潮”。实际上,多数甲藻引起的赤潮海水并非“赤”色。赤潮主要发生于沿岸水域,面积从数百平方米至上万平方公里不等,厚度约3米左右。 Red tide is due to some algae and other floating organisms in the sea, the explosive propagation, aggregation, causing the local marine aquatic anomalies of a natural phenomenon. As the luminous algae cause this phenomenon was pink sea water, hence the name “red tide.” In fact, red tide seawater caused by most dinoflagellates is not “red” in color. Red tide occurs mainly in coastal waters, an area ranging from hundreds of square meters to tens of thousands of square kilometers ranging from about 3 meters in thickness.