Gustavo Adolfo Paredes analyses in his dissertation the degradation and recovery of coral reefs. He specifically looked into the types of conservation techniques used to protect coral reefs. Marine reserves were found to be the main type of conservation by reducing the impacts of human activities to the ecosystem, especially in relation to fishing. However, there are is not a plethora of reserves in the Caribbean. A major problem that Paredes discovered was the lack of enforcement in these reserves. He found that those reserves fully protected showed a trackable amount of positive change. He also found that the protection efforts occurring were not well known throughout local communities inhibiting their abilities to contribute to the protection of the coral reefs. Paredes concluded that larger marine reserves need to be designated, more regulations on fisheries need to be implemented, and pollution controls near reserves should be increased as well.