Prorocentrum donghaiense might benefit from the lower n / p while skeletonema costatum might benefit from the higher n / p 氮磷比会影响浮游生物的生长，较高的氮磷比可能对东海原甲藻的生长有利，较低氮磷比则可能有利于中肋骨条藻生长。
2.
So the conclusion could be made that the phosphate was the restraining factor on the growth of prorocentrum donghaiense and skeletonema costatum 在磷限制条件下，中肋骨条藻细胞增殖受到明显抑制，生物量偏低，而东海原甲藻受到的影响较小。
