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Definition: The overall surface of protected marine areas, as a percentage of territorial water, as adopted by the International Union for Conservation of Nature (IUCN). All areas of intertidal or subtidal terrain are covered, together with their overlying water and associated flora, fauna and historical and cultural features, that have been reserved by law or other effective means to protect part of or the entire enclosed environment. Only protected areas that are nationally designated are included in this indicator.

Aggregation: Weighted averages using total territorial water area as weight.

Source: MDG Indicators Database. The data source is the World Database on Protected Areas (WDPA), the most comprehensive global dataset on marine and terrestrial protected areas available. WDPA is a joint product of UNEP and IUCN, prepared by UNEP-WCMC and the IUCN World Commission on Protected Areas working with governments, the secretariats of Multilateral Environmental Agreements and collaborating non-governmental organizations (NGOs). Data are reported by countries to WDPA. Quality control criteria are applied to ensure consistency and comparability of WDPA data. New data are validated at UNEP-WCMC through a number of tools and translated into the standard WDPA data structure. Discrepancies between WDPA data and new data are resolved in communication with data providers. Processed data is fully integrated into the published WDPA.

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