Corals can be found here, but lack the  photosynthetic symbiotes of their tropical sunlit cousins.

珊瑚可以在这里，缺乏热带阳光照射的表亲的光合共生体。

Another concern is the bleaching of coral reefs, where the corals expel their plant symbiotes, losing their colour, and eventually dying.

另一个人担忧的问题是珊瑚礁的白化，珊瑚会排出它们的植物共生体，失去， 终死亡。

Other types of coral that do not  have the plant symbiotes, however, do exist in deeper waters, or colder seas as  far from the equator as Scotland, but are rarer.

然而， 其他类型的珊瑚没有植物共生体，确实存在于更深的水域，或者远离赤道的较冷海域， 如苏格兰，较为罕见。