1. Introduction
Marine protected areas(MPAs)are an important instrument for
conservation and fisheries managemen.MPAs can protect habitats,
ecosystem structure,functioning and integrity,and species diver-
sity,richness,size and density [1–3]. These conservation and fish-
eries benefits are particularly evident in “no-take” MPAs [4]. Their
import as a management tool has lead to increasing numbers of
MPAs around the world – more than 6800 MPAs covering 2.86%
of Exclusive Economic Zones in 2010 [5] – and global commitments
to scale up the coverage of MPAs to 10% aerial coverage by 2020 [6].