Plankton is at the bottom of the marine food chain. 浮游生物處于海洋食物鏈的最底層。
Ultraviolet radiation may also damage marine life by killing one- celled plants called phytoplankton,which form the base of the ocean's food chain. 紫外線輻射還可以通過殺死單細胞的浮游植物來破壞海洋生命,這種浮游植物是構成海洋食物鏈的基礎。