L'évaluation de la Guinée a révélé que le pays recèle un patrimoine unique en terme de biodiversité en Afrique de l'Ouest. Le réseau des aires protégées de Guinée est globalement représentatif de la diversité des écosystèmes du pays, et notamment, il inclut montagnes, côtes et eaux douces continentales. La proportion d'aires protégées dans la zone marine et côtière pourrait cependant augmenter.
IUCN, WWF and the US National Oceanic and Atmospheric Administration (NOAA) have developed this guidebook to assist marine protected area (MPA) managers in assessing the performance of their MPA. Based on this assessment, it shows how necessary changes can be made to improve management measures.
The Framework for management effectiveness developed by the IUCN World Commission for Protected Areas was published in the first version of this Best Practice Guideline. It is further explained and interpreted, although not substantially altered, in this version. A number of key guidelines for good practice in evaluation are presented from many practitioners around the world, and important needs and directions for the future are identified.