赤潮是海洋灾害之一。赤潮不仅破坏了海洋资源,恶化了海洋生态环境,而且还能间接引起食物中毒,危及人类健康。世界沿海国家几乎都发生过因食用被赤潮生物污染的海产品而中毒死亡的事件。 赤潮造成明显的海洋灾害是在20世纪以后,主要是由于沿海工业高速发展,大量污水排放入海引起的。在本世纪的五六十年代,赤潮大多发生在工业发达国家的沿海水域,到70年代,在发展中国家沿海也出现赤潮,印度、菲律宾、马来西亚以及非洲、南美洲沿岸都有赤潮发生,赤潮成为一种全球性的海洋灾害。 Red tide is one of marine disasters. Red tide not only damaged the marine resources, deteriorated the marine environment, but also indirectly caused food poisoning, endangering human health. Nearly all the coastal countries in the world have been poisoned by the consumption of seafood contaminated by red tide organisms. The obvious marine disasters caused by red tides were mainly caused by the rapid development of coastal industries and the large amount of sewage discharged into the sea after the 20th century. In the fifties and sixties of this century, most of the red tides occurred in the coastal waters of industrialized countries. By the 1970s, red tides also occurred along the coasts of developing countries. Red tides occurred along the coasts of India, the Philippines, Malaysia, Africa and South America. Become a global ocean disaster.