The establishments of Marine Protected Area (MPA) and No-Take Area (NTA) are considered as effective ways to prevent degradations of coral reef systems and being resistant to the global changes. However, the improper managements and ineffective reinforcements made MPA/ NTA no guarantee for the sustained survival of coral reef systems. The target surveyed site of this project-Chinwan Inner Bay (CIB) is also the victim, which suffered from the grazing of Drupella snails, improper managements and the emerging coral disease. The above situation jeopardizes the existence of coral community in CIB.
The attractant manipulation experiment failed this year maybe due to insufficient concentration of inducing substances. The luring of fish fries by LED was also unsuccessful because of unmatched season of recruiting fish fries with the deployment of the light traps. The investigations of sexual coral recruits showed that the density of recruits and coral functional diversity were higher in the healthy coral community than the degraded one, which can provide valuable information to the conservation of the coral community.