Negros Oriental ‘s fishing grounds include municipal waters along the coast as well as open waters in the Tañon Strait to the east and the deep waters of the southern Sulu and Mindanao Seas.
To prevent overfishing and boost fish production, concerned private institutions, national government agencies and local government units set up a total of 32 marine protected areas for biodiversity in 22 municipalities. Combined, these special areas span a total of 268.55 kilometers of coastline and cover almost 300 hectares.
First and foremost of these marine reserves is the Apo Island marine sanctuary in the southern town of Dauin. Established in 1985 by the Dauin Municipal Government under the guidance of Silliman University, the site was proclaimed a national protected area in 1994.