The high relative abundance of the fossil planktonic algae indicates the high primary surface productivity of the palaeo-lake within the Oligocene.
文昌组浮游藻类相对丰度高,表明始新世珠江口古湖的表层水初始生产力高。
Hitherto it was assumed that the main way carbon gets from the top to the bottom of the ocean was as part of dead planktonic algae sinking to the seabed.
在此之前,人们一直认为碳从海面转移到海底的主要途径是伴随着浮游藻类死亡后而沉没海底。
A few grandiose projects have also been suggested, such as giant parasols in space or adding iron to the ocean to encourage planktonic algae to grow and soak up carbon dioxide.
例如在太空中架设巨型遮阳伞,或在海洋中加入铁元素,以促进浮藻的生长并吸收二氧化碳。
Fertilizer-laden runoff triggers explosive planktonic algae growth in coastal areas.
富含肥料的水流入大海造成了海岸附近水域的水藻大规模生长。