red tide

名词 red tide:

1. seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin

1. But with this type of Red Tide in Ago Bay, we unfortunately still don't know the cause.
   但对于AGOBAY的赤潮类型，我们还没有找到原因。
2. Red Tide is usually caused by agricultural pesticides, detergents or conditions, which increase nutrients in the water.
   赤潮通常是由于农业杀虫剂、清洁剂引起的，或是因为营养增大的水域状况。