The constant shift between light and darkness as the algal cells circulate increases the amount of carbon that they fix, probably by promoting chemical reactions that occur naturally only at night.

• 当藻类细胞在光亮与黑暗环境中循环时，其固定的二氧化碳量也就相应增加，这大概是因为这种方法促进了自然条件下只能发生在晚上的化学反应。