他告诉BBC新闻说，“浮游生物需要太阳光线和来自下层的营养，但是越来越明显的海水分层抑制了其营养的来源。”
"The plants need sunlight from above and nutrients from below; and as it becomes more stratified, that limits the availability of nutrients," he told BBC News.
众所周知，明亮光线是种波长短的射线，如太阳光，对我们生物时钟和我们心情都有重大影响。
Bright light which incorporates short wavelength rays - that is sunlight - is known to have the greatest impact on our body clocks and our mood.
论文的作者希望进一步研究并揭示所谓的太阳光促使维生素合成的生物理论。
The authors of the study agreed that the issue requires further study to shed light on the biological basis of the so-called sunshine vitamin.
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