HomeCNU Journal of Higher Educationvol. 5 no. 1 (2011)

Determination of Optimal Sizes of Marine Protected Areas in the Visayas, Philippines through Biological-Social Welfare Optimization

Roberto N. Padua | Dexter S. Ontoy



Two optimizations models are explored: one that maximizes a social welfare – function subject to biological diversity and management constraints, which maximizes biodiversity subject to management resource constraints and social welfare considerations are proposed to determine   sizes of Marine Protected Areas (MPA). The models are applied to the marine protected areas in the Visayas, Philippines using available records in the Directory of Marine Protected Areas in the Visayas by fitting the species-area relation (SAR) curve, the management resource–area curve (MRA), and the welfare–area (WA) curve from each of the marine protected areas listed. A comparison of the optimal MPA sizes computed from the model and the prevailing MPA sizes in the Visayas area revealed that non–functional MPA shave sizes which do not support either the management resource, biodiversity requirement or social–welfare considerations.