World Register of marine Cave Species (WoRCS)

Submarine caves are important biodiversity reservoirs, but there is little information about the biota of marine caves in the Southwestern Atlantic. This work describes three submarine cavities and their sponge communities on the Fernando de Noronha Archipelago (Northeast Brazil), increasing the number of sponge species known in submarine cavities on Fernando de Noronha from 29 to 69, and highlighting the great richness of the sponge communities in these cryptic environments.