The protection and surveillance within the 2 no-take reserves -where all kind of fishing, mooring and scuba diving are prohibited- is effective, with more than 2.400 hours of enforcement per year, mostly at sea, There is a great increase in fish biomass with an increase of abundance,  more bigger fishes, and come back of rare/sensitive species like groupers, brown meagre, seabass, etc: Experimental controlled fishing operations are conducted every 3 years within the reserve and showed that in 24 years, the mean weight of a fish increased by a factor of 2.6 (287 g in 2019 vs. 111 g in 1995. During this time, fishing captures have been multiplied by a factor of 7, with a catch rate per CPUE effort unit increasing from 1.1 kg / 100 m of net in 1995 to a maximum of 7.1 kg / 100 m in 2019 (Figure 2).

These spectacular results and a clear reserve effect not only concern fishes, but also the invertebrates like spiny lobsters: catches were multiplicated per 8 since the creation of the reserve. These results are important for artisanal fishers who benefits to biomass exportation processes: in the borders of marine reserves, the fishing yields can reach 2.5 kg/100 m of net; while in the rest of MPA, the mean CPUE is 1kg/100 m.