“…As many other intertidal invertebrates, limpets have been traditionally exploited for consumption in many places around the world such as Mexico and South of the United States (Pombo and Escofet, 1996), Hawaii (McCoy, 2008), Canary Islands (Moro and Herrera, 2000), Azores (Martins et al, 1987) and Chile (Olivares-Paz et al, 2006). In some areas, the high demand and the lack of an adequate planning for a sustainable exploitation, such in Canary Island, or the deficient enforcement of the conservation measures, such in Azores, has originated important overexploitation issues, which have led to the commercial extinction of some species (Official Bulletin of the the reproductive cycle and population dynamics in the Portuguese and British coasts indicate a high intra-and inter-specific variability regarding parameters such as density, growth rate, reproductive cycle and sex ratio (Baxter, 1983;Morais et al, 2003;McCarthy et al, 2008;Ribeiro et al, 2009), correlating with abiotic parameters, such as latitude, wave exposure or substrate height and slope, as well as on biotic parameters, due to competence with other species.…”