广阔无垠(yín)的海洋为人类提供了丰富的资源,但随着工农业生产的迅速发展,水体污染日益加重,赤潮现象也日趋(qū)严重。赤潮是海洋受到污染后所产生的一种生态异常现象,其直接原因是有机物和营养盐过多而引起的。赤潮,顾名思义,就应当是 The vast expanse of ocean provides rich resources for mankind. However, with the rapid development of industrial and agricultural production, water pollution is aggravating and red tide is becoming increasingly serious. Red tide is an ecological anomaly produced when the ocean is polluted. The direct cause is the excess of organic matter and nutrients. Red tide, as the name suggests, should be