translation.en: Well, it now turns out that the whales are crucial to sustaining that entire ecosystem, and one of the reasons for this is that they often feed at depth and then they come up to the surface and produce what biologists politely call large fecal plumes, huge explosions of poop right across the surface waters, up in the photic zone, where there's enough light to allow photosynthesis to take place, and those great plumes of fertilizer
translation.zh: 人们发现，原来鲸鱼对于维持 这一整个生态系统至关重要 其中一个原因是 鲸鱼在较深的水下进食 然后到水面上排泄 生物学家礼貌地称之为大型粪便羽 大量的粪便在水面 在海洋透光层，那里有足够的光照量 可以进行光合作用 那些大量的羽毛状的肥料