Rock hind ( Epinephelus adscensionis ) and spotted moray ( Gymnothorax moringa ) are ubiquitous mesopredators that co‐occur in the nearshore waters of Ascension Island in the South Atlantic Ocean, where they have significant cultural and subsistence value, but management of their non‐commercial take is limited. This isolated volcanic system is home to high biomass and low species diversity, which poses two key questions: How c...

The Great Barrier Reef Marine Park, an area almost the size of Japan, has a new network of no‐take areas that significantly improves the protection of biodiversity. The new marine park zoning implements, in a quantitative manner, many of the theoretical design principles discussed in the literature. For example, the new network of no‐take areas has at least 20% protection per “bioregion,” minimum levels of protection for all k...