■ Anthropogenic factors are caused by human action in the marine environment that is physically destructive to coral, including: dredging channels and vessel groundings; mooring that fractures coral skeletons; coral mining: sediment and water pollution; and overfishing (Jaap 2000)fisheries and tourism, coastal protection, geological processes, and aesthetic wonder. A principal cause of reef damage in Florida is ships running into reefs. The other major human impact on Florida's reefs is dredging for beach renourishment and channel maintenance. In response to chronic reef damage, federal and state agencies and consultants have developed techniques to restore, as best possible, reefs impacted by human disturbance. These efforts include salvaging sponges and corals, removing loose debris from the reef, rebuilding three-dimensional (3-D. For example, a boat anchor dropped onto a reef produces significant damage to the reef structure. Also, a reef lives in a symbiotic relationship with herbivorous fish that feed on the algae on the surface of these corals. Overfishing can lead to seaweed growth and a decline in coral. Source: Fletcher et al. 2012. 24 Coastal Management Plan Seychelles: 2019-2024