Human Impact In the Coral Reef Ecosystem

Fishing 

• Dynamite Fishing: Is a common way of fishing in which explosives are used for easy collection. 
• The expositions made underwater that are meant to catch fish can sometimes catch the Coral Reefs as well. 
• This fishing method damages Coral Reefs structure and sometimes beyond repair.
• Cyanide Fishing: Is a common way of fishing used to catch live pet fishes using Cyanide.
• Even though it is illegal in many countries it is still widely used in the Philippines.
• In many cases the fish tend to hide with in the corals because it feels in danger, which causes the fisher man to tear them apart in order to get to sunned fishes. 

Sediment Run-off

• Sediment run-off from farms, construction and deforestation can kill corals by clogging their mouths or by blocking sun light.

Coral Bleaching: 

• Coral bleaching is something that happens when the coral loses its color and turns white.
• Corals are very sensitive and even the smallest change in water temperature can cause this to happen. 

Tourism

• Careless tourism is in many times very dangerous to the coral reef ecosystem.
• Many people do not know the first thing about a coral reef and therefore they tend to be careless about what they do around them 
• In many circumstances people are not aware that they are causing damage to the ecosystem. 
• Tourism on the other hand can be good because it is the number one revenue generating business in the world, the money that is brought in will then be put to use into coral conservation.