Startling figures have been a wakeup call for scientists and over recent years efforts have focussed on replanting corals in areas known as "coral nurseries." This involves transplanting coral on to to structures of stone or brick which are placed against supporting walls or "buttresses." These house wild coral populations which then colonize and develop upon the structure.
Creating these coral nurseries is challenging and initial attempts proved raising coral to be difficult and impractical; they are slow growing, fickle and have a symbiotic relationship with specific algae which all put a strain upon their development. Despite this, after several years of trial and error, coral nurseries are now on the rise and becoming more and more successful.
Branching corals such as Acropora, have been discovered to thrive in nursery environments whereby their arms break off and enable the formation of dozens, even hundreds, of new colonies. These new colonies also grow a lot faster than wild ones and reproduce sooner; great news! It's now been just over 15 years since the first nursery was constructed and it's been evident that this is the best approach to succeed in the re-establishment for this type of provision for marine life.