fishing designed to make as much money as possible. some companies illegally advertise for tourists to kill! because they are killing predators, the food chain is messed up, causing overpopulation of many species in the ocean
aquarium trade?
fish are taken from their natural habitat and to aquariums. many species are in decline because of this, which could lead to extinction someday
coastal development?
buildings on areas near reefs create lots of noise and waste pollution, this damages the reef and disturbs wildlife
coral bleaching?
sea temperature increases (climate change) and a higher level of acid in the water, it forces polyps out of the coral, leaving coral skeletons behind
tourists?
divers break off chunks of coral to take home, and the boat anchors damage the reef
crown of thorns starfish?
this species of starfish eat coral and increase in numbers and thrive when water is polluted. some reefs have been completely eaten by these animals!
