The precusors of dinosteranes were dinoflagellate algae developed in the saline and brackish water environments.

在这些环境中发育甲藻类是甲藻甾烷先质。

However, the richness of dinoflagellate and blue-green algae increased significantly in warm seasons.

聚类结果显示各浮游植群落组分无明显斑块分布特征。