A new study compared the effectiveness of three popular artificial reefs to increase fish densities around Saba and St Eustatius. The researchers found that a complex internal structure, providing more shelter availability, resulted in increased fish abundance, biomass and species richness. The results of this study were used to design an even better working artificial reef, the Moreef, which is now being tested on Saba.
Coral reefs within the Caribbean have been slowly degrading since the 1970s. Initially this degradation was due to diseases that wiped out most of the Diadema antillarum (black sea urchin), the most important herbivores, and