Juveniles prefer to settle on new substrates higher than old substrates and recruit densities decrease as plate age in Pocilloporidae, but an opposite pattern was found in Poritidae.

• 鹿角与微孔珊瑚幼生附苗对新、旧基质有选择性，鹿角珊瑚在新基质上附苗密度较高，且附苗密度随基质放置时间增加而下降；但微孔珊瑚与鹿角珊瑚相反，在旧基质上附苗密度较高，且附苗密度随基质放置时间增加而显著增加。