acanthaster planci crown of thorn starfish outbreak eating coral white scar on coral colonies

acanthaster after ampat and arms bali biodiversity blue body clear colonies coral crown damaged digestion diver eat eating ecosystem external fish flourishing fusilier good holidays hotspot human indonesia invasive less life many marine out outbreak paradise place planci raja scar snorkeler species spines starfish stomach suck the thorn triangle tropical underwater venemous water white wild with yellow