algal layer

基本解释

The algal blooms, which can be toxic to animals and human swimmers, leave behind an ugly layer of green scum that fouls tourist beaches and starves seaweeds of light.
海面上的赤潮对水里的动物和游泳的人来说都是有毒性的，赤潮藻还会在海面上留下一层难看的绿色浮渣，不但污染了供人旅游的海岸，还遮挡了海草的光线，使其不能生长。
The comparison of algal composition and abundance between bottom layer of ice and surface layer of water suggests that it is different except in late November when the spring ice algal bloom occurred.
从冰底和水表藻种组成的对比表明，两者仅在春末冰底冰藻水华期间具有较强的相似性。
journal.polar.gov.cn