Photosynthesis wouldn't have been able to occur so much in the planktonic plant life in the oceans.

浮游植物不可能在海洋中产生那么多光合作用。

After millions of years of rafting on bits of  dead bugs, many lineages gained the adaptations they needed to thrive in that environment, eventually becoming completely planktonic.

经过数百万年依靠死虫子漂流后，许多谱系获得了在这种环境中繁衍生息所需的适应能力，最终完全成为浮游生物。

Ocean artUp, a project led by the Helmholtz Centre for Ocean Research in Kiel, Germany, is experimenting with the use of upwelling to encourage the growth of the small, planktonic creatures eaten by sardines.

由德国基尔亥姆霍兹海洋研究中心领导的“海洋艺术行动”项目，正在试验利用上升洋流来促进被沙丁鱼吃掉的小型浮游生物的生长。

That encourages the growth of planktonic algae, and thus of everything that feeds on such plankton, or feeds on what feeds on them, including jellyfish, and also various molluscs and crustacea that loggerheads enjoy as an appetiser.

这有利于浮游藻类生长，因此也有利于以这些浮游生物为食的动物，或以这些动物为食的动物生长，包括水母，还有各种各样的软体动物和甲壳动物，这些都是红海龟的最爱。