Coastal development: The growth of coastal cities and towns generates a range of threats to nearby coral reefs.
Degradation of coral reefs — can result in lost tourism income in countries that are dependent on reef-based tourism and also can reduce fish populations
Coral Reef Degradation is caused by natural and man-made events. ... Water pollution comes in a variety of different sources, oil, gas, and pesticide, They poison coral and marine life.
Coastal construction — can cause chronic sedimentation, sewage effluent, industrial discharge, and changes in water flow and run off, which can directly affects the coral increasing rated and metabolic activities as well as it directly kills all of the corals
Removal of reefs — can result
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Sea-level rise and changes in storm patterns are affecting coastal development activities. Local affection of land-based sources of stress will occur in combination with regional and global stressors, like climate change, land-use practices, and freshwater inputs, further threatening the survival of coral reef ecosystems.
Reducing the impact of coastal development is critically important, and can be reduced by effective planning and land use regulation. Coastal development nearly threatens 25% of the world’s coral reefs, in southeast Asia, the Indian ocean, and the Atlantic.
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The popularity the three cruise ships increased because of that, the marine environment is also affected. It can carry 4,000 passengers and crew. The garbage dumping and the untreated sewage at sea, plus the release of other shipping-related pollutants
Dredging creates many major problems for reef. The drastic effects are caused by suspension of silt.The strongest effects are caused by suspension of silt, sedimentation, turbidity, oxygen reduction and the release of bacteria and toxic matter. A massive quantity of either coarse or fine particles will bury the corals, which are unable to withstand cover for more than one or two