The intense, efficient transfer of organic carbon from the surface to the deep Southern Ocean make it a key component of the global carbon cycle. Observations show that this process isn’t always driven by sinking diatom skeletons, which often don’t make it past the mid-depth twilight zone, challenging the understanding of how climate change may impact the region.

中文翻译：

---

极地硅藻在暮光区褪色


有机碳从表层到南大洋深处的强烈、高效转移使其成为全球碳循环的关键组成部分。观测表明，这个过程并不总是由下沉的硅藻骨架驱动的，硅藻骨架通常不会越过中深度暮光区，这挑战了人们对气候变化如何影响该地区的理解。